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author | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2010-02-28 19:23:06 -0800 |
commit | 47871889c601d8199c51a4086f77eebd77c29b0b (patch) | |
tree | 40cdcac3bff0ee40cc33dcca61d0577cdf965f77 /drivers/pcmcia | |
parent | c16cc0b464b8876cfd57ce1c1dbcb6f9a6a0bce3 (diff) | |
parent | 30ff056c42c665b9ea535d8515890857ae382540 (diff) | |
download | kernel_samsung_aries-47871889c601d8199c51a4086f77eebd77c29b0b.zip kernel_samsung_aries-47871889c601d8199c51a4086f77eebd77c29b0b.tar.gz kernel_samsung_aries-47871889c601d8199c51a4086f77eebd77c29b0b.tar.bz2 |
Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
Conflicts:
drivers/firmware/iscsi_ibft.c
Diffstat (limited to 'drivers/pcmcia')
28 files changed, 2134 insertions, 1891 deletions
diff --git a/drivers/pcmcia/Kconfig b/drivers/pcmcia/Kconfig index 9f3adbd..0a6601c 100644 --- a/drivers/pcmcia/Kconfig +++ b/drivers/pcmcia/Kconfig @@ -84,7 +84,7 @@ config YENTA tristate "CardBus yenta-compatible bridge support" depends on PCI select CARDBUS if !EMBEDDED - select PCCARD_NONSTATIC + select PCCARD_NONSTATIC if PCMCIA != n ---help--- This option enables support for CardBus host bridges. Virtually all modern PCMCIA bridges are CardBus compatible. A "bridge" is @@ -161,9 +161,8 @@ config TCIC config PCMCIA_M8XX tristate "MPC8xx PCMCIA support" - depends on PCMCIA && PPC && 8xx - select PCCARD_IODYN - select PCCARD_NONSTATIC + depends on PCCARD && PPC && 8xx + select PCCARD_IODYN if PCMCIA != n help Say Y here to include support for PowerPC 8xx series PCMCIA controller. @@ -174,6 +173,27 @@ config PCMCIA_AU1X00 tristate "Au1x00 pcmcia support" depends on SOC_AU1X00 && PCMCIA +config PCMCIA_ALCHEMY_DEVBOARD + tristate "Alchemy Db/Pb1xxx PCMCIA socket services" + depends on SOC_AU1X00 && PCMCIA + select 64BIT_PHYS_ADDR + help + Enable this driver of you want PCMCIA support on your Alchemy + Db1000, Db/Pb1100, Db/Pb1500, Db/Pb1550, Db/Pb1200 board. + NOT suitable for the PB1000! + + This driver is also available as a module called db1xxx_ss.ko + +config PCMCIA_XXS1500 + tristate "MyCable XXS1500 PCMCIA socket support" + depends on PCMCIA && MIPS_XXS1500 + select 64BIT_PHYS_ADDR + help + Support for the PCMCIA/CF socket interface on MyCable XXS1500 + systems. + + This driver is also available as a module called xxs1500_ss.ko + config PCMCIA_BCM63XX tristate "bcm63xx pcmcia support" depends on BCM63XX && PCMCIA @@ -238,14 +258,12 @@ config PCMCIA_PROBE config M32R_PCC bool "M32R PCMCIA I/F" depends on M32R && CHIP_M32700 && PCMCIA - select PCCARD_NONSTATIC help Say Y here to use the M32R PCMCIA controller. config M32R_CFC bool "M32R CF I/F Controller" depends on M32R && (PLAT_USRV || PLAT_M32700UT || PLAT_MAPPI2 || PLAT_MAPPI3 || PLAT_OPSPUT) - select PCCARD_NONSTATIC help Say Y here to use the M32R CompactFlash controller. diff --git a/drivers/pcmcia/Makefile b/drivers/pcmcia/Makefile index 83ff802..381b031 100644 --- a/drivers/pcmcia/Makefile +++ b/drivers/pcmcia/Makefile @@ -2,11 +2,11 @@ # Makefile for the kernel pcmcia subsystem (c/o David Hinds) # -pcmcia_core-y += cs.o cistpl.o rsrc_mgr.o socket_sysfs.o +pcmcia_core-y += cs.o rsrc_mgr.o socket_sysfs.o pcmcia_core-$(CONFIG_CARDBUS) += cardbus.o obj-$(CONFIG_PCCARD) += pcmcia_core.o -pcmcia-y += ds.o pcmcia_resource.o +pcmcia-y += ds.o pcmcia_resource.o cistpl.o pcmcia-$(CONFIG_PCMCIA_IOCTL) += pcmcia_ioctl.o obj-$(CONFIG_PCMCIA) += pcmcia.o @@ -35,18 +35,10 @@ obj-$(CONFIG_OMAP_CF) += omap_cf.o obj-$(CONFIG_BFIN_CFPCMCIA) += bfin_cf_pcmcia.o obj-$(CONFIG_AT91_CF) += at91_cf.o obj-$(CONFIG_ELECTRA_CF) += electra_cf.o +obj-$(CONFIG_PCMCIA_ALCHEMY_DEVBOARD) += db1xxx_ss.o au1x00_ss-y += au1000_generic.o au1x00_ss-$(CONFIG_MIPS_PB1000) += au1000_pb1x00.o -au1x00_ss-$(CONFIG_MIPS_PB1100) += au1000_pb1x00.o -au1x00_ss-$(CONFIG_MIPS_PB1200) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_PB1500) += au1000_pb1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1000) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1100) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1200) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1500) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_DB1550) += au1000_db1x00.o -au1x00_ss-$(CONFIG_MIPS_XXS1500) += au1000_xxs1500.o sa1111_cs-y += sa1111_generic.o sa1111_cs-$(CONFIG_ASSABET_NEPONSET) += sa1100_neponset.o @@ -76,3 +68,5 @@ pxa2xx-obj-$(CONFIG_MACH_E740) += pxa2xx_e740.o pxa2xx-obj-$(CONFIG_MACH_STARGATE2) += pxa2xx_stargate2.o obj-$(CONFIG_PCMCIA_PXA2XX) += pxa2xx_base.o $(pxa2xx-obj-y) + +obj-$(CONFIG_PCMCIA_XXS1500) += xxs1500_ss.o diff --git a/drivers/pcmcia/at91_cf.c b/drivers/pcmcia/at91_cf.c index e1dcced..5d22807 100644 --- a/drivers/pcmcia/at91_cf.c +++ b/drivers/pcmcia/at91_cf.c @@ -52,8 +52,6 @@ struct at91_cf_socket { unsigned long phys_baseaddr; }; -#define SZ_2K (2 * SZ_1K) - static inline int at91_cf_present(struct at91_cf_socket *cf) { return !gpio_get_value(cf->board->det_pin); diff --git a/drivers/pcmcia/au1000_db1x00.c b/drivers/pcmcia/au1000_db1x00.c deleted file mode 100644 index c78d77f..0000000 --- a/drivers/pcmcia/au1000_db1x00.c +++ /dev/null @@ -1,305 +0,0 @@ -/* - * - * Alchemy Semi Db1x00 boards specific pcmcia routines. - * - * Copyright 2002 MontaVista Software Inc. - * Author: MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * Copyright 2004 Pete Popov, updated the driver to 2.6. - * Followed the sa11xx API and largely copied many of the hardware - * independent functions. - * - * ######################################################################## - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## - * - * - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/interrupt.h> -#include <linux/device.h> -#include <linux/init.h> - -#include <asm/irq.h> -#include <asm/signal.h> -#include <asm/mach-au1x00/au1000.h> - -#if defined(CONFIG_MIPS_DB1200) - #include <db1200.h> -#elif defined(CONFIG_MIPS_PB1200) - #include <pb1200.h> -#else - #include <asm/mach-db1x00/db1x00.h> - static BCSR * const bcsr = (BCSR *)BCSR_KSEG1_ADDR; -#endif - -#include "au1000_generic.h" - -#if 0 -#define debug(x,args...) printk(KERN_DEBUG "%s: " x, __func__ , ##args) -#else -#define debug(x,args...) -#endif - - -struct au1000_pcmcia_socket au1000_pcmcia_socket[PCMCIA_NUM_SOCKS]; -extern int au1x00_pcmcia_socket_probe(struct device *, struct pcmcia_low_level *, int, int); - -static int db1x00_pcmcia_hw_init(struct au1000_pcmcia_socket *skt) -{ -#ifdef CONFIG_MIPS_DB1550 - skt->irq = skt->nr ? AU1000_GPIO_5 : AU1000_GPIO_3; -#elif defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200) - skt->irq = skt->nr ? BOARD_PC1_INT : BOARD_PC0_INT; -#else - skt->irq = skt->nr ? AU1000_GPIO_5 : AU1000_GPIO_2; -#endif - return 0; -} - -static void db1x00_pcmcia_shutdown(struct au1000_pcmcia_socket *skt) -{ - bcsr->pcmcia = 0; /* turn off power */ - au_sync_delay(2); -} - -static void -db1x00_pcmcia_socket_state(struct au1000_pcmcia_socket *skt, struct pcmcia_state *state) -{ - u32 inserted; - unsigned char vs; - - state->ready = 0; - state->vs_Xv = 0; - state->vs_3v = 0; - state->detect = 0; - - switch (skt->nr) { - case 0: - vs = bcsr->status & 0x3; -#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200) - inserted = BOARD_CARD_INSERTED(0); -#else - inserted = !(bcsr->status & (1<<4)); -#endif - break; - case 1: - vs = (bcsr->status & 0xC)>>2; -#if defined(CONFIG_MIPS_DB1200) || defined(CONFIG_MIPS_PB1200) - inserted = BOARD_CARD_INSERTED(1); -#else - inserted = !(bcsr->status & (1<<5)); -#endif - break; - default:/* should never happen */ - return; - } - - if (inserted) - debug("db1x00 socket %d: inserted %d, vs %d pcmcia %x\n", - skt->nr, inserted, vs, bcsr->pcmcia); - - if (inserted) { - switch (vs) { - case 0: - case 2: - state->vs_3v=1; - break; - case 3: /* 5V */ - break; - default: - /* return without setting 'detect' */ - printk(KERN_ERR "db1x00 bad VS (%d)\n", - vs); - } - state->detect = 1; - state->ready = 1; - } - else { - /* if the card was previously inserted and then ejected, - * we should turn off power to it - */ - if ((skt->nr == 0) && (bcsr->pcmcia & BCSR_PCMCIA_PC0RST)) { - bcsr->pcmcia &= ~(BCSR_PCMCIA_PC0RST | - BCSR_PCMCIA_PC0DRVEN | - BCSR_PCMCIA_PC0VPP | - BCSR_PCMCIA_PC0VCC); - au_sync_delay(10); - } - else if ((skt->nr == 1) && bcsr->pcmcia & BCSR_PCMCIA_PC1RST) { - bcsr->pcmcia &= ~(BCSR_PCMCIA_PC1RST | - BCSR_PCMCIA_PC1DRVEN | - BCSR_PCMCIA_PC1VPP | - BCSR_PCMCIA_PC1VCC); - au_sync_delay(10); - } - } - - state->bvd1=1; - state->bvd2=1; - state->wrprot=0; -} - -static int -db1x00_pcmcia_configure_socket(struct au1000_pcmcia_socket *skt, struct socket_state_t *state) -{ - u16 pwr; - int sock = skt->nr; - - debug("config_skt %d Vcc %dV Vpp %dV, reset %d\n", - sock, state->Vcc, state->Vpp, - state->flags & SS_RESET); - - /* pcmcia reg was set to zero at init time. Be careful when - * initializing a socket not to wipe out the settings of the - * other socket. - */ - pwr = bcsr->pcmcia; - pwr &= ~(0xf << sock*8); /* clear voltage settings */ - - state->Vpp = 0; - switch(state->Vcc){ - case 0: /* Vcc 0 */ - pwr |= SET_VCC_VPP(0,0,sock); - break; - case 50: /* Vcc 5V */ - switch(state->Vpp) { - case 0: - pwr |= SET_VCC_VPP(2,0,sock); - break; - case 50: - pwr |= SET_VCC_VPP(2,1,sock); - break; - case 12: - pwr |= SET_VCC_VPP(2,2,sock); - break; - case 33: - default: - pwr |= SET_VCC_VPP(0,0,sock); - printk("%s: bad Vcc/Vpp (%d:%d)\n", - __func__, - state->Vcc, - state->Vpp); - break; - } - break; - case 33: /* Vcc 3.3V */ - switch(state->Vpp) { - case 0: - pwr |= SET_VCC_VPP(1,0,sock); - break; - case 12: - pwr |= SET_VCC_VPP(1,2,sock); - break; - case 33: - pwr |= SET_VCC_VPP(1,1,sock); - break; - case 50: - default: - pwr |= SET_VCC_VPP(0,0,sock); - printk("%s: bad Vcc/Vpp (%d:%d)\n", - __func__, - state->Vcc, - state->Vpp); - break; - } - break; - default: /* what's this ? */ - pwr |= SET_VCC_VPP(0,0,sock); - printk(KERN_ERR "%s: bad Vcc %d\n", - __func__, state->Vcc); - break; - } - - bcsr->pcmcia = pwr; - au_sync_delay(300); - - if (sock == 0) { - if (!(state->flags & SS_RESET)) { - pwr |= BCSR_PCMCIA_PC0DRVEN; - bcsr->pcmcia = pwr; - au_sync_delay(300); - pwr |= BCSR_PCMCIA_PC0RST; - bcsr->pcmcia = pwr; - au_sync_delay(100); - } - else { - pwr &= ~(BCSR_PCMCIA_PC0RST | BCSR_PCMCIA_PC0DRVEN); - bcsr->pcmcia = pwr; - au_sync_delay(100); - } - } - else { - if (!(state->flags & SS_RESET)) { - pwr |= BCSR_PCMCIA_PC1DRVEN; - bcsr->pcmcia = pwr; - au_sync_delay(300); - pwr |= BCSR_PCMCIA_PC1RST; - bcsr->pcmcia = pwr; - au_sync_delay(100); - } - else { - pwr &= ~(BCSR_PCMCIA_PC1RST | BCSR_PCMCIA_PC1DRVEN); - bcsr->pcmcia = pwr; - au_sync_delay(100); - } - } - return 0; -} - -/* - * Enable card status IRQs on (re-)initialisation. This can - * be called at initialisation, power management event, or - * pcmcia event. - */ -void db1x00_socket_init(struct au1000_pcmcia_socket *skt) -{ - /* nothing to do for now */ -} - -/* - * Disable card status IRQs and PCMCIA bus on suspend. - */ -void db1x00_socket_suspend(struct au1000_pcmcia_socket *skt) -{ - /* nothing to do for now */ -} - -struct pcmcia_low_level db1x00_pcmcia_ops = { - .owner = THIS_MODULE, - - .hw_init = db1x00_pcmcia_hw_init, - .hw_shutdown = db1x00_pcmcia_shutdown, - - .socket_state = db1x00_pcmcia_socket_state, - .configure_socket = db1x00_pcmcia_configure_socket, - - .socket_init = db1x00_socket_init, - .socket_suspend = db1x00_socket_suspend -}; - -int au1x_board_init(struct device *dev) -{ - int ret = -ENODEV; - bcsr->pcmcia = 0; /* turn off power, if it's not already off */ - au_sync_delay(2); - ret = au1x00_pcmcia_socket_probe(dev, &db1x00_pcmcia_ops, 0, 2); - return ret; -} diff --git a/drivers/pcmcia/au1000_generic.c b/drivers/pcmcia/au1000_generic.c index 0208870..171c8a6 100644 --- a/drivers/pcmcia/au1000_generic.c +++ b/drivers/pcmcia/au1000_generic.c @@ -405,18 +405,16 @@ int au1x00_pcmcia_socket_probe(struct device *dev, struct pcmcia_low_level *ops, skt->virt_io = (void *) (ioremap((phys_t)AU1X_SOCK0_IO, 0x1000) - (u32)mips_io_port_base); - skt->phys_attr = AU1X_SOCK0_PSEUDO_PHYS_ATTR; - skt->phys_mem = AU1X_SOCK0_PSEUDO_PHYS_MEM; + skt->phys_attr = AU1X_SOCK0_PHYS_ATTR; + skt->phys_mem = AU1X_SOCK0_PHYS_MEM; } -#ifndef CONFIG_MIPS_XXS1500 else { skt->virt_io = (void *) (ioremap((phys_t)AU1X_SOCK1_IO, 0x1000) - (u32)mips_io_port_base); - skt->phys_attr = AU1X_SOCK1_PSEUDO_PHYS_ATTR; - skt->phys_mem = AU1X_SOCK1_PSEUDO_PHYS_MEM; + skt->phys_attr = AU1X_SOCK1_PHYS_ATTR; + skt->phys_mem = AU1X_SOCK1_PHYS_MEM; } -#endif pcmcia_base_vaddrs[i] = (u32 *)skt->virt_io; ret = ops->hw_init(skt); diff --git a/drivers/pcmcia/au1000_generic.h b/drivers/pcmcia/au1000_generic.h index 13a4fbc..a324d32 100644 --- a/drivers/pcmcia/au1000_generic.h +++ b/drivers/pcmcia/au1000_generic.h @@ -36,30 +36,14 @@ #define AU1X_SOCK0_IO 0xF00000000ULL #define AU1X_SOCK0_PHYS_ATTR 0xF40000000ULL #define AU1X_SOCK0_PHYS_MEM 0xF80000000ULL -/* pseudo 32 bit phys addresses, which get fixed up to the - * real 36 bit address in fixup_bigphys_addr() */ -#define AU1X_SOCK0_PSEUDO_PHYS_ATTR 0xF4000000 -#define AU1X_SOCK0_PSEUDO_PHYS_MEM 0xF8000000 /* pcmcia socket 1 needs external glue logic so the memory map * differs from board to board. */ -#if defined(CONFIG_MIPS_PB1000) || defined(CONFIG_MIPS_PB1100) || \ - defined(CONFIG_MIPS_PB1500) || defined(CONFIG_MIPS_PB1550) || \ - defined(CONFIG_MIPS_PB1200) +#if defined(CONFIG_MIPS_PB1000) #define AU1X_SOCK1_IO 0xF08000000ULL #define AU1X_SOCK1_PHYS_ATTR 0xF48000000ULL #define AU1X_SOCK1_PHYS_MEM 0xF88000000ULL -#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4800000 -#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8800000 -#elif defined(CONFIG_MIPS_DB1000) || defined(CONFIG_MIPS_DB1100) || \ - defined(CONFIG_MIPS_DB1500) || defined(CONFIG_MIPS_DB1550) || \ - defined(CONFIG_MIPS_DB1200) -#define AU1X_SOCK1_IO 0xF04000000ULL -#define AU1X_SOCK1_PHYS_ATTR 0xF44000000ULL -#define AU1X_SOCK1_PHYS_MEM 0xF84000000ULL -#define AU1X_SOCK1_PSEUDO_PHYS_ATTR 0xF4400000 -#define AU1X_SOCK1_PSEUDO_PHYS_MEM 0xF8400000 #endif struct pcmcia_state { diff --git a/drivers/pcmcia/au1000_pb1x00.c b/drivers/pcmcia/au1000_pb1x00.c index b1984ed..5a979cb 100644 --- a/drivers/pcmcia/au1000_pb1x00.c +++ b/drivers/pcmcia/au1000_pb1x00.c @@ -1,6 +1,6 @@ /* * - * Alchemy Semi Pb1x00 boards specific pcmcia routines. + * Alchemy Semi Pb1000 boards specific pcmcia routines. * * Copyright 2002 MontaVista Software Inc. * Author: MontaVista Software, Inc. @@ -46,20 +46,11 @@ #define debug(fmt, arg...) do { } while (0) -#ifdef CONFIG_MIPS_PB1000 #include <asm/pb1000.h> #define PCMCIA_IRQ AU1000_GPIO_15 -#elif defined (CONFIG_MIPS_PB1500) -#include <asm/pb1500.h> -#define PCMCIA_IRQ AU1500_GPIO_203 -#elif defined (CONFIG_MIPS_PB1100) -#include <asm/pb1100.h> -#define PCMCIA_IRQ AU1000_GPIO_11 -#endif static int pb1x00_pcmcia_init(struct pcmcia_init *init) { -#ifdef CONFIG_MIPS_PB1000 u16 pcr; pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST; @@ -74,21 +65,10 @@ static int pb1x00_pcmcia_init(struct pcmcia_init *init) au_sync_delay(20); return PCMCIA_NUM_SOCKS; - -#else /* fixme -- take care of the Pb1500 at some point */ - - u16 pcr; - pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; /* turn off power */ - pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN); - au_writew(pcr, PCMCIA_BOARD_REG); - au_sync_delay(500); - return PCMCIA_NUM_SOCKS; -#endif } static int pb1x00_pcmcia_shutdown(void) { -#ifdef CONFIG_MIPS_PB1000 u16 pcr; pcr = PCR_SLOT_0_RST | PCR_SLOT_1_RST; pcr |= SET_VCC_VPP(VCC_HIZ,VPP_HIZ,0); @@ -96,14 +76,6 @@ static int pb1x00_pcmcia_shutdown(void) au_writel(pcr, PB1000_PCR); au_sync_delay(20); return 0; -#else - u16 pcr; - pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; /* turn off power */ - pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN); - au_writew(pcr, PCMCIA_BOARD_REG); - au_sync_delay(2); - return 0; -#endif } static int @@ -112,21 +84,11 @@ pb1x00_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state) u32 inserted0, inserted1; u16 vs0, vs1; -#ifdef CONFIG_MIPS_PB1000 vs0 = vs1 = (u16)au_readl(PB1000_ACR1); inserted0 = !(vs0 & (ACR1_SLOT_0_CD1 | ACR1_SLOT_0_CD2)); inserted1 = !(vs1 & (ACR1_SLOT_1_CD1 | ACR1_SLOT_1_CD2)); vs0 = (vs0 >> 4) & 0x3; vs1 = (vs1 >> 12) & 0x3; -#else - vs0 = (au_readw(BOARD_STATUS_REG) >> 4) & 0x3; -#ifdef CONFIG_MIPS_PB1500 - inserted0 = !((au_readl(GPIO2_PINSTATE) >> 1) & 0x1); /* gpio 201 */ -#else /* Pb1100 */ - inserted0 = !((au_readl(SYS_PINSTATERD) >> 9) & 0x1); /* gpio 9 */ -#endif - inserted1 = 0; -#endif state->ready = 0; state->vs_Xv = 0; @@ -203,7 +165,6 @@ pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure) if(configure->sock > PCMCIA_MAX_SOCK) return -1; -#ifdef CONFIG_MIPS_PB1000 pcr = au_readl(PB1000_PCR); if (configure->sock == 0) { @@ -323,84 +284,6 @@ pb1x00_pcmcia_configure_socket(const struct pcmcia_configure *configure) au_writel(pcr, PB1000_PCR); au_sync_delay(300); -#else - - pcr = au_readw(PCMCIA_BOARD_REG) & ~0xf; - - debug("Vcc %dV Vpp %dV, pcr %x, reset %d\n", - configure->vcc, configure->vpp, pcr, configure->reset); - - - switch(configure->vcc){ - case 0: /* Vcc 0 */ - pcr |= SET_VCC_VPP(0,0); - break; - case 50: /* Vcc 5V */ - switch(configure->vpp) { - case 0: - pcr |= SET_VCC_VPP(2,0); - break; - case 50: - pcr |= SET_VCC_VPP(2,1); - break; - case 12: - pcr |= SET_VCC_VPP(2,2); - break; - case 33: - default: - pcr |= SET_VCC_VPP(0,0); - printk("%s: bad Vcc/Vpp (%d:%d)\n", - __func__, - configure->vcc, - configure->vpp); - break; - } - break; - case 33: /* Vcc 3.3V */ - switch(configure->vpp) { - case 0: - pcr |= SET_VCC_VPP(1,0); - break; - case 12: - pcr |= SET_VCC_VPP(1,2); - break; - case 33: - pcr |= SET_VCC_VPP(1,1); - break; - case 50: - default: - pcr |= SET_VCC_VPP(0,0); - printk("%s: bad Vcc/Vpp (%d:%d)\n", - __func__, - configure->vcc, - configure->vpp); - break; - } - break; - default: /* what's this ? */ - pcr |= SET_VCC_VPP(0,0); - printk(KERN_ERR "%s: bad Vcc %d\n", - __func__, configure->vcc); - break; - } - - au_writew(pcr, PCMCIA_BOARD_REG); - au_sync_delay(300); - - if (!configure->reset) { - pcr |= PC_DRV_EN; - au_writew(pcr, PCMCIA_BOARD_REG); - au_sync_delay(100); - pcr |= PC_DEASSERT_RST; - au_writew(pcr, PCMCIA_BOARD_REG); - au_sync_delay(100); - } - else { - pcr &= ~(PC_DEASSERT_RST | PC_DRV_EN); - au_writew(pcr, PCMCIA_BOARD_REG); - au_sync_delay(100); - } -#endif return 0; } diff --git a/drivers/pcmcia/au1000_xxs1500.c b/drivers/pcmcia/au1000_xxs1500.c deleted file mode 100644 index b43d47b..0000000 --- a/drivers/pcmcia/au1000_xxs1500.c +++ /dev/null @@ -1,188 +0,0 @@ -/* - * - * MyCable board specific pcmcia routines. - * - * Copyright 2003 MontaVista Software Inc. - * Author: Pete Popov, MontaVista Software, Inc. - * ppopov@mvista.com or source@mvista.com - * - * ######################################################################## - * - * This program is free software; you can distribute it and/or modify it - * under the terms of the GNU General Public License (Version 2) as - * published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License - * for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA. - * - * ######################################################################## - * - * - */ -#include <linux/module.h> -#include <linux/init.h> -#include <linux/delay.h> -#include <linux/ioport.h> -#include <linux/kernel.h> -#include <linux/timer.h> -#include <linux/mm.h> -#include <linux/proc_fs.h> -#include <linux/types.h> - -#include <pcmcia/cs_types.h> -#include <pcmcia/cs.h> -#include <pcmcia/ss.h> -#include <pcmcia/cistpl.h> -#include <pcmcia/bus_ops.h> - -#include <asm/io.h> -#include <asm/irq.h> -#include <asm/system.h> - -#include <asm/au1000.h> -#include <asm/au1000_pcmcia.h> - -#define PCMCIA_MAX_SOCK 0 -#define PCMCIA_NUM_SOCKS (PCMCIA_MAX_SOCK + 1) -#define PCMCIA_IRQ AU1000_GPIO_4 - -#if 0 -#define DEBUG(x, args...) printk(__func__ ": " x, ##args) -#else -#define DEBUG(x,args...) -#endif - -static int xxs1500_pcmcia_init(struct pcmcia_init *init) -{ - return PCMCIA_NUM_SOCKS; -} - -static int xxs1500_pcmcia_shutdown(void) -{ - /* turn off power */ - au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30), - GPIO2_OUTPUT); - au_sync_delay(100); - - /* assert reset */ - au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20), - GPIO2_OUTPUT); - au_sync_delay(100); - return 0; -} - - -static int -xxs1500_pcmcia_socket_state(unsigned sock, struct pcmcia_state *state) -{ - u32 inserted; u32 vs; - unsigned long gpio, gpio2; - - if(sock > PCMCIA_MAX_SOCK) return -1; - - gpio = au_readl(SYS_PINSTATERD); - gpio2 = au_readl(GPIO2_PINSTATE); - - vs = gpio2 & ((1<<8) | (1<<9)); - inserted = (!(gpio & 0x1) && !(gpio & 0x2)); - - state->ready = 0; - state->vs_Xv = 0; - state->vs_3v = 0; - state->detect = 0; - - if (inserted) { - switch (vs) { - case 0: - case 1: - case 2: - state->vs_3v=1; - break; - case 3: /* 5V */ - default: - /* return without setting 'detect' */ - printk(KERN_ERR "au1x00_cs: unsupported VS\n", - vs); - return; - } - state->detect = 1; - } - - if (state->detect) { - state->ready = 1; - } - - state->bvd1= gpio2 & (1<<10); - state->bvd2 = gpio2 & (1<<11); - state->wrprot=0; - return 1; -} - - -static int xxs1500_pcmcia_get_irq_info(struct pcmcia_irq_info *info) -{ - - if(info->sock > PCMCIA_MAX_SOCK) return -1; - info->irq = PCMCIA_IRQ; - return 0; -} - - -static int -xxs1500_pcmcia_configure_socket(const struct pcmcia_configure *configure) -{ - - if(configure->sock > PCMCIA_MAX_SOCK) return -1; - - DEBUG("Vcc %dV Vpp %dV, reset %d\n", - configure->vcc, configure->vpp, configure->reset); - - switch(configure->vcc){ - case 33: /* Vcc 3.3V */ - /* turn on power */ - DEBUG("turn on power\n"); - au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<14))|(1<<30), - GPIO2_OUTPUT); - au_sync_delay(100); - break; - case 50: /* Vcc 5V */ - default: /* what's this ? */ - printk(KERN_ERR "au1x00_cs: unsupported VCC\n"); - case 0: /* Vcc 0 */ - /* turn off power */ - au_sync_delay(100); - au_writel(au_readl(GPIO2_PINSTATE) | (1<<14)|(1<<30), - GPIO2_OUTPUT); - break; - } - - if (!configure->reset) { - DEBUG("deassert reset\n"); - au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<4))|(1<<20), - GPIO2_OUTPUT); - au_sync_delay(100); - au_writel((au_readl(GPIO2_PINSTATE) & ~(1<<5))|(1<<21), - GPIO2_OUTPUT); - } - else { - DEBUG("assert reset\n"); - au_writel(au_readl(GPIO2_PINSTATE) | (1<<4)|(1<<20), - GPIO2_OUTPUT); - } - au_sync_delay(100); - return 0; -} - -struct pcmcia_low_level xxs1500_pcmcia_ops = { - xxs1500_pcmcia_init, - xxs1500_pcmcia_shutdown, - xxs1500_pcmcia_socket_state, - xxs1500_pcmcia_get_irq_info, - xxs1500_pcmcia_configure_socket -}; diff --git a/drivers/pcmcia/bfin_cf_pcmcia.c b/drivers/pcmcia/bfin_cf_pcmcia.c index 300b368..2482ce7 100644 --- a/drivers/pcmcia/bfin_cf_pcmcia.c +++ b/drivers/pcmcia/bfin_cf_pcmcia.c @@ -205,7 +205,7 @@ static int __devinit bfin_cf_probe(struct platform_device *pdev) dev_info(&pdev->dev, "Blackfin CompactFlash/PCMCIA Socket Driver\n"); irq = platform_get_irq(pdev, 0); - if (!irq) + if (irq <= 0) return -EINVAL; cd_pfx = platform_get_irq(pdev, 1); /*Card Detect GPIO PIN */ diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c index d99f846..ac0686e 100644 --- a/drivers/pcmcia/cardbus.c +++ b/drivers/pcmcia/cardbus.c @@ -20,170 +20,12 @@ */ -#include <linux/module.h> #include <linux/kernel.h> -#include <linux/string.h> -#include <linux/slab.h> -#include <linux/mm.h> +#include <linux/module.h> #include <linux/pci.h> -#include <linux/ioport.h> -#include <linux/io.h> -#include <asm/irq.h> -#include <pcmcia/cs_types.h> #include <pcmcia/ss.h> -#include <pcmcia/cs.h> -#include <pcmcia/cistpl.h> -#include "cs_internal.h" - -/*====================================================================*/ - -/* Offsets in the Expansion ROM Image Header */ -#define ROM_SIGNATURE 0x0000 /* 2 bytes */ -#define ROM_DATA_PTR 0x0018 /* 2 bytes */ - -/* Offsets in the CardBus PC Card Data Structure */ -#define PCDATA_SIGNATURE 0x0000 /* 4 bytes */ -#define PCDATA_VPD_PTR 0x0008 /* 2 bytes */ -#define PCDATA_LENGTH 0x000a /* 2 bytes */ -#define PCDATA_REVISION 0x000c -#define PCDATA_IMAGE_SZ 0x0010 /* 2 bytes */ -#define PCDATA_ROM_LEVEL 0x0012 /* 2 bytes */ -#define PCDATA_CODE_TYPE 0x0014 -#define PCDATA_INDICATOR 0x0015 - -/*===================================================================== - - Expansion ROM's have a special layout, and pointers specify an - image number and an offset within that image. xlate_rom_addr() - converts an image/offset address to an absolute offset from the - ROM's base address. - -=====================================================================*/ - -static u_int xlate_rom_addr(void __iomem *b, u_int addr) -{ - u_int img = 0, ofs = 0, sz; - u_short data; - while ((readb(b) == 0x55) && (readb(b + 1) == 0xaa)) { - if (img == (addr >> 28)) - return (addr & 0x0fffffff) + ofs; - data = readb(b + ROM_DATA_PTR) + (readb(b + ROM_DATA_PTR + 1) << 8); - sz = 512 * (readb(b + data + PCDATA_IMAGE_SZ) + - (readb(b + data + PCDATA_IMAGE_SZ + 1) << 8)); - if ((sz == 0) || (readb(b + data + PCDATA_INDICATOR) & 0x80)) - break; - b += sz; - ofs += sz; - img++; - } - return 0; -} - -/*===================================================================== - - These are similar to setup_cis_mem and release_cis_mem for 16-bit - cards. The "result" that is used externally is the cb_cis_virt - pointer in the struct pcmcia_socket structure. - -=====================================================================*/ - -static void cb_release_cis_mem(struct pcmcia_socket *s) -{ - if (s->cb_cis_virt) { - dev_dbg(&s->dev, "cb_release_cis_mem()\n"); - iounmap(s->cb_cis_virt); - s->cb_cis_virt = NULL; - s->cb_cis_res = NULL; - } -} - -static int cb_setup_cis_mem(struct pcmcia_socket *s, struct resource *res) -{ - unsigned int start, size; - - if (res == s->cb_cis_res) - return 0; - - if (s->cb_cis_res) - cb_release_cis_mem(s); - - start = res->start; - size = res->end - start + 1; - s->cb_cis_virt = ioremap(start, size); - - if (!s->cb_cis_virt) - return -1; - - s->cb_cis_res = res; - - return 0; -} - -/*===================================================================== - - This is used by the CIS processing code to read CIS information - from a CardBus device. - -=====================================================================*/ - -int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, - void *ptr) -{ - struct pci_dev *dev; - struct resource *res; - - dev_dbg(&s->dev, "read_cb_mem(%d, %#x, %u)\n", space, addr, len); - dev = pci_get_slot(s->cb_dev->subordinate, 0); - if (!dev) - goto fail; - - /* Config space? */ - if (space == 0) { - if (addr + len > 0x100) - goto failput; - for (; len; addr++, ptr++, len--) - pci_read_config_byte(dev, addr, ptr); - return 0; - } - - res = dev->resource + space - 1; - - pci_dev_put(dev); - - if (!res->flags) - goto fail; - - if (cb_setup_cis_mem(s, res) != 0) - goto fail; - - if (space == 7) { - addr = xlate_rom_addr(s->cb_cis_virt, addr); - if (addr == 0) - goto fail; - } - - if (addr + len > res->end - res->start) - goto fail; - - memcpy_fromio(ptr, s->cb_cis_virt + addr, len); - return 0; - -failput: - pci_dev_put(dev); -fail: - memset(ptr, 0xff, len); - return -1; -} - -/*===================================================================== - - cb_alloc() and cb_free() allocate and free the kernel data - structures for a Cardbus device, and handle the lowest level PCI - device setup issues. - -=====================================================================*/ static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq) { @@ -215,6 +57,13 @@ static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq) } } +/** + * cb_alloc() - add CardBus device + * @s: the pcmcia_socket where the CardBus device is located + * + * cb_alloc() allocates the kernel data structures for a Cardbus device + * and handles the lowest level PCI device setup issues. + */ int __ref cb_alloc(struct pcmcia_socket *s) { struct pci_bus *bus = s->cb_dev->subordinate; @@ -249,12 +98,16 @@ int __ref cb_alloc(struct pcmcia_socket *s) return 0; } +/** + * cb_free() - remove CardBus device + * @s: the pcmcia_socket where the CardBus device was located + * + * cb_free() handles the lowest level PCI device cleanup. + */ void cb_free(struct pcmcia_socket *s) { struct pci_dev *bridge = s->cb_dev; - cb_release_cis_mem(s); - if (bridge) pci_remove_behind_bridge(bridge); } diff --git a/drivers/pcmcia/cistpl.c b/drivers/pcmcia/cistpl.c index 25b1cd2..2f3622d 100644 --- a/drivers/pcmcia/cistpl.c +++ b/drivers/pcmcia/cistpl.c @@ -64,6 +64,7 @@ module_param(cis_width, int, 0444); void release_cis_mem(struct pcmcia_socket *s) { + mutex_lock(&s->ops_mutex); if (s->cis_mem.flags & MAP_ACTIVE) { s->cis_mem.flags &= ~MAP_ACTIVE; s->ops->set_mem_map(s, &s->cis_mem); @@ -75,13 +76,15 @@ void release_cis_mem(struct pcmcia_socket *s) iounmap(s->cis_virt); s->cis_virt = NULL; } + mutex_unlock(&s->ops_mutex); } -EXPORT_SYMBOL(release_cis_mem); /* * Map the card memory at "card_offset" into virtual space. * If flags & MAP_ATTRIB, map the attribute space, otherwise * map the memory space. + * + * Must be called with ops_mutex held. */ static void __iomem * set_cis_map(struct pcmcia_socket *s, unsigned int card_offset, unsigned int flags) @@ -140,6 +143,7 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, dev_dbg(&s->dev, "pcmcia_read_cis_mem(%d, %#x, %u)\n", attr, addr, len); + mutex_lock(&s->ops_mutex); if (attr & IS_INDIRECT) { /* Indirect accesses use a bunch of special registers at fixed locations in common memory */ @@ -151,7 +155,9 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0)); if (!sys) { + dev_dbg(&s->dev, "could not map memory\n"); memset(ptr, 0xff, len); + mutex_unlock(&s->ops_mutex); return -1; } @@ -165,6 +171,9 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, } else { u_int inc = 1, card_offset, flags; + if (addr > CISTPL_MAX_CIS_SIZE) + dev_dbg(&s->dev, "attempt to read CIS mem at addr %#x", addr); + flags = MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0); if (attr) { flags |= MAP_ATTRIB; @@ -176,7 +185,9 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, while (len) { sys = set_cis_map(s, card_offset, flags); if (!sys) { + dev_dbg(&s->dev, "could not map memory\n"); memset(ptr, 0xff, len); + mutex_unlock(&s->ops_mutex); return -1; } end = sys + s->map_size; @@ -190,12 +201,12 @@ int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, addr = 0; } } + mutex_unlock(&s->ops_mutex); dev_dbg(&s->dev, " %#2.2x %#2.2x %#2.2x %#2.2x ...\n", *(u_char *)(ptr+0), *(u_char *)(ptr+1), *(u_char *)(ptr+2), *(u_char *)(ptr+3)); return 0; } -EXPORT_SYMBOL(pcmcia_read_cis_mem); void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, @@ -206,6 +217,7 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, dev_dbg(&s->dev, "pcmcia_write_cis_mem(%d, %#x, %u)\n", attr, addr, len); + mutex_lock(&s->ops_mutex); if (attr & IS_INDIRECT) { /* Indirect accesses use a bunch of special registers at fixed locations in common memory */ @@ -216,8 +228,11 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, } sys = set_cis_map(s, 0, MAP_ACTIVE | ((cis_width) ? MAP_16BIT : 0)); - if (!sys) + if (!sys) { + dev_dbg(&s->dev, "could not map memory\n"); + mutex_unlock(&s->ops_mutex); return; /* FIXME: Error */ + } writeb(flags, sys+CISREG_ICTRL0); writeb(addr & 0xff, sys+CISREG_IADDR0); @@ -239,8 +254,11 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, card_offset = addr & ~(s->map_size-1); while (len) { sys = set_cis_map(s, card_offset, flags); - if (!sys) + if (!sys) { + dev_dbg(&s->dev, "could not map memory\n"); + mutex_unlock(&s->ops_mutex); return; /* FIXME: error */ + } end = sys + s->map_size; sys = sys + (addr & (s->map_size-1)); @@ -253,8 +271,8 @@ void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, addr = 0; } } + mutex_unlock(&s->ops_mutex); } -EXPORT_SYMBOL(pcmcia_write_cis_mem); /*====================================================================== @@ -265,32 +283,36 @@ EXPORT_SYMBOL(pcmcia_write_cis_mem); ======================================================================*/ -static void read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, - size_t len, void *ptr) +static int read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, + size_t len, void *ptr) { - struct cis_cache_entry *cis; - int ret; + struct cis_cache_entry *cis; + int ret = 0; - if (s->fake_cis) { - if (s->fake_cis_len >= addr+len) - memcpy(ptr, s->fake_cis+addr, len); - else - memset(ptr, 0xff, len); - return; - } + if (s->state & SOCKET_CARDBUS) + return -EINVAL; - list_for_each_entry(cis, &s->cis_cache, node) { - if (cis->addr == addr && cis->len == len && cis->attr == attr) { - memcpy(ptr, cis->cache, len); - return; + mutex_lock(&s->ops_mutex); + if (s->fake_cis) { + if (s->fake_cis_len >= addr+len) + memcpy(ptr, s->fake_cis+addr, len); + else { + memset(ptr, 0xff, len); + ret = -EINVAL; + } + mutex_unlock(&s->ops_mutex); + return ret; } - } -#ifdef CONFIG_CARDBUS - if (s->state & SOCKET_CARDBUS) - ret = read_cb_mem(s, attr, addr, len, ptr); - else -#endif + list_for_each_entry(cis, &s->cis_cache, node) { + if (cis->addr == addr && cis->len == len && cis->attr == attr) { + memcpy(ptr, cis->cache, len); + mutex_unlock(&s->ops_mutex); + return 0; + } + } + mutex_unlock(&s->ops_mutex); + ret = pcmcia_read_cis_mem(s, attr, addr, len, ptr); if (ret == 0) { @@ -301,9 +323,12 @@ static void read_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, cis->len = len; cis->attr = attr; memcpy(cis->cache, ptr, len); + mutex_lock(&s->ops_mutex); list_add(&cis->node, &s->cis_cache); + mutex_unlock(&s->ops_mutex); } } + return ret; } static void @@ -311,32 +336,35 @@ remove_cis_cache(struct pcmcia_socket *s, int attr, u_int addr, u_int len) { struct cis_cache_entry *cis; + mutex_lock(&s->ops_mutex); list_for_each_entry(cis, &s->cis_cache, node) if (cis->addr == addr && cis->len == len && cis->attr == attr) { list_del(&cis->node); kfree(cis); break; } + mutex_unlock(&s->ops_mutex); } +/** + * destroy_cis_cache() - destroy the CIS cache + * @s: pcmcia_socket for which CIS cache shall be destroyed + * + * This destroys the CIS cache but keeps any fake CIS alive. Must be + * called with ops_mutex held. + */ + void destroy_cis_cache(struct pcmcia_socket *s) { struct list_head *l, *n; + struct cis_cache_entry *cis; list_for_each_safe(l, n, &s->cis_cache) { - struct cis_cache_entry *cis = list_entry(l, struct cis_cache_entry, node); - + cis = list_entry(l, struct cis_cache_entry, node); list_del(&cis->node); kfree(cis); } - - /* - * If there was a fake CIS, destroy that as well. - */ - kfree(s->fake_cis); - s->fake_cis = NULL; } -EXPORT_SYMBOL(destroy_cis_cache); /*====================================================================== @@ -349,6 +377,10 @@ int verify_cis_cache(struct pcmcia_socket *s) { struct cis_cache_entry *cis; char *buf; + int ret; + + if (s->state & SOCKET_CARDBUS) + return -EINVAL; buf = kmalloc(256, GFP_KERNEL); if (buf == NULL) { @@ -361,14 +393,9 @@ int verify_cis_cache(struct pcmcia_socket *s) if (len > 256) len = 256; -#ifdef CONFIG_CARDBUS - if (s->state & SOCKET_CARDBUS) - read_cb_mem(s, cis->attr, cis->addr, len, buf); - else -#endif - pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf); - if (memcmp(buf, cis->cache, len) != 0) { + ret = pcmcia_read_cis_mem(s, cis->attr, cis->addr, len, buf); + if (ret || memcmp(buf, cis->cache, len) != 0) { kfree(buf); return -1; } @@ -391,17 +418,20 @@ int pcmcia_replace_cis(struct pcmcia_socket *s, dev_printk(KERN_WARNING, &s->dev, "replacement CIS too big\n"); return -EINVAL; } + mutex_lock(&s->ops_mutex); kfree(s->fake_cis); s->fake_cis = kmalloc(len, GFP_KERNEL); if (s->fake_cis == NULL) { dev_printk(KERN_WARNING, &s->dev, "no memory to replace CIS\n"); + mutex_unlock(&s->ops_mutex); return -ENOMEM; } s->fake_cis_len = len; memcpy(s->fake_cis, data, len); + dev_info(&s->dev, "Using replacement CIS\n"); + mutex_unlock(&s->ops_mutex); return 0; } -EXPORT_SYMBOL(pcmcia_replace_cis); /*====================================================================== @@ -425,25 +455,16 @@ int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple { if (!s) return -EINVAL; - if (!(s->state & SOCKET_PRESENT)) + + if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS)) return -ENODEV; tuple->TupleLink = tuple->Flags = 0; -#ifdef CONFIG_CARDBUS - if (s->state & SOCKET_CARDBUS) { - struct pci_dev *dev = s->cb_dev; - u_int ptr; - pci_bus_read_config_dword(dev->subordinate, 0, PCI_CARDBUS_CIS, &ptr); - tuple->CISOffset = ptr & ~7; - SPACE(tuple->Flags) = (ptr & 7); - } else -#endif - { - /* Assume presence of a LONGLINK_C to address 0 */ - tuple->CISOffset = tuple->LinkOffset = 0; - SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1; - } - if (!(s->state & SOCKET_CARDBUS) && (s->functions > 1) && - !(tuple->Attributes & TUPLE_RETURN_COMMON)) { + + /* Assume presence of a LONGLINK_C to address 0 */ + tuple->CISOffset = tuple->LinkOffset = 0; + SPACE(tuple->Flags) = HAS_LINK(tuple->Flags) = 1; + + if ((s->functions > 1) && !(tuple->Attributes & TUPLE_RETURN_COMMON)) { cisdata_t req = tuple->DesiredTuple; tuple->DesiredTuple = CISTPL_LONGLINK_MFC; if (pccard_get_next_tuple(s, function, tuple) == 0) { @@ -456,17 +477,19 @@ int pccard_get_first_tuple(struct pcmcia_socket *s, unsigned int function, tuple } return pccard_get_next_tuple(s, function, tuple); } -EXPORT_SYMBOL(pccard_get_first_tuple); static int follow_link(struct pcmcia_socket *s, tuple_t *tuple) { u_char link[5]; u_int ofs; + int ret; if (MFC_FN(tuple->Flags)) { /* Get indirect link from the MFC tuple */ - read_cis_cache(s, LINK_SPACE(tuple->Flags), + ret = read_cis_cache(s, LINK_SPACE(tuple->Flags), tuple->LinkOffset, 5, link); + if (ret) + return -1; ofs = get_unaligned_le32(link + 1); SPACE(tuple->Flags) = (link[0] == CISTPL_MFC_ATTR); /* Move to the next indirect link */ @@ -479,10 +502,12 @@ static int follow_link(struct pcmcia_socket *s, tuple_t *tuple) } else { return -1; } - if (!(s->state & SOCKET_CARDBUS) && SPACE(tuple->Flags)) { + if (SPACE(tuple->Flags)) { /* This is ugly, but a common CIS error is to code the long link offset incorrectly, so we check the right spot... */ - read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); + ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); + if (ret) + return -1; if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) && (strncmp(link+2, "CIS", 3) == 0)) return ofs; @@ -490,7 +515,9 @@ static int follow_link(struct pcmcia_socket *s, tuple_t *tuple) /* Then, we try the wrong spot... */ ofs = ofs >> 1; } - read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); + ret = read_cis_cache(s, SPACE(tuple->Flags), ofs, 5, link); + if (ret) + return -1; if ((link[0] == CISTPL_LINKTARGET) && (link[1] >= 3) && (strncmp(link+2, "CIS", 3) == 0)) return ofs; @@ -502,10 +529,11 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_ { u_char link[2], tmp; int ofs, i, attr; + int ret; if (!s) return -EINVAL; - if (!(s->state & SOCKET_PRESENT)) + if (!(s->state & SOCKET_PRESENT) || (s->state & SOCKET_CARDBUS)) return -ENODEV; link[1] = tuple->TupleLink; @@ -516,7 +544,9 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_ if (link[1] == 0xff) { link[0] = CISTPL_END; } else { - read_cis_cache(s, attr, ofs, 2, link); + ret = read_cis_cache(s, attr, ofs, 2, link); + if (ret) + return -1; if (link[0] == CISTPL_NULL) { ofs++; continue; } @@ -528,7 +558,9 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_ if (ofs < 0) return -ENOSPC; attr = SPACE(tuple->Flags); - read_cis_cache(s, attr, ofs, 2, link); + ret = read_cis_cache(s, attr, ofs, 2, link); + if (ret) + return -1; } /* Is this a link tuple? Make a note of it */ @@ -542,12 +574,16 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_ case CISTPL_LONGLINK_A: HAS_LINK(tuple->Flags) = 1; LINK_SPACE(tuple->Flags) = attr | IS_ATTR; - read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset); + ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset); + if (ret) + return -1; break; case CISTPL_LONGLINK_C: HAS_LINK(tuple->Flags) = 1; LINK_SPACE(tuple->Flags) = attr & ~IS_ATTR; - read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset); + ret = read_cis_cache(s, attr, ofs+2, 4, &tuple->LinkOffset); + if (ret) + return -1; break; case CISTPL_INDIRECT: HAS_LINK(tuple->Flags) = 1; @@ -559,7 +595,9 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_ LINK_SPACE(tuple->Flags) = attr; if (function == BIND_FN_ALL) { /* Follow all the MFC links */ - read_cis_cache(s, attr, ofs+2, 1, &tmp); + ret = read_cis_cache(s, attr, ofs+2, 1, &tmp); + if (ret) + return -1; MFC_FN(tuple->Flags) = tmp; } else { /* Follow exactly one of the links */ @@ -592,7 +630,6 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, tuple_ tuple->CISOffset = ofs + 2; return 0; } -EXPORT_SYMBOL(pccard_get_next_tuple); /*====================================================================*/ @@ -601,6 +638,7 @@ EXPORT_SYMBOL(pccard_get_next_tuple); int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple) { u_int len; + int ret; if (!s) return -EINVAL; @@ -611,12 +649,13 @@ int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple) tuple->TupleDataLen = tuple->TupleLink; if (len == 0) return 0; - read_cis_cache(s, SPACE(tuple->Flags), + ret = read_cis_cache(s, SPACE(tuple->Flags), tuple->CISOffset + tuple->TupleOffset, _MIN(len, tuple->TupleDataMax), tuple->TupleData); + if (ret) + return -1; return 0; } -EXPORT_SYMBOL(pccard_get_tuple_data); /*====================================================================== @@ -1190,119 +1229,6 @@ static int parse_cftable_entry(tuple_t *tuple, /*====================================================================*/ -#ifdef CONFIG_CARDBUS - -static int parse_bar(tuple_t *tuple, cistpl_bar_t *bar) -{ - u_char *p; - if (tuple->TupleDataLen < 6) - return -EINVAL; - p = (u_char *)tuple->TupleData; - bar->attr = *p; - p += 2; - bar->size = get_unaligned_le32(p); - return 0; -} - -static int parse_config_cb(tuple_t *tuple, cistpl_config_t *config) -{ - u_char *p; - - p = (u_char *)tuple->TupleData; - if ((*p != 3) || (tuple->TupleDataLen < 6)) - return -EINVAL; - config->last_idx = *(++p); - p++; - config->base = get_unaligned_le32(p); - config->subtuples = tuple->TupleDataLen - 6; - return 0; -} - -static int parse_cftable_entry_cb(tuple_t *tuple, - cistpl_cftable_entry_cb_t *entry) -{ - u_char *p, *q, features; - - p = tuple->TupleData; - q = p + tuple->TupleDataLen; - entry->index = *p & 0x3f; - entry->flags = 0; - if (*p & 0x40) - entry->flags |= CISTPL_CFTABLE_DEFAULT; - - /* Process optional features */ - if (++p == q) - return -EINVAL; - features = *p; p++; - - /* Power options */ - if ((features & 3) > 0) { - p = parse_power(p, q, &entry->vcc); - if (p == NULL) - return -EINVAL; - } else - entry->vcc.present = 0; - if ((features & 3) > 1) { - p = parse_power(p, q, &entry->vpp1); - if (p == NULL) - return -EINVAL; - } else - entry->vpp1.present = 0; - if ((features & 3) > 2) { - p = parse_power(p, q, &entry->vpp2); - if (p == NULL) - return -EINVAL; - } else - entry->vpp2.present = 0; - - /* I/O window options */ - if (features & 0x08) { - if (p == q) - return -EINVAL; - entry->io = *p; p++; - } else - entry->io = 0; - - /* Interrupt options */ - if (features & 0x10) { - p = parse_irq(p, q, &entry->irq); - if (p == NULL) - return -EINVAL; - } else - entry->irq.IRQInfo1 = 0; - - if (features & 0x20) { - if (p == q) - return -EINVAL; - entry->mem = *p; p++; - } else - entry->mem = 0; - - /* Misc features */ - if (features & 0x80) { - if (p == q) - return -EINVAL; - entry->flags |= (*p << 8); - if (*p & 0x80) { - if (++p == q) - return -EINVAL; - entry->flags |= (*p << 16); - } - while (*p & 0x80) - if (++p == q) - return -EINVAL; - p++; - } - - entry->subtuples = q-p; - - return 0; -} - -#endif - -/*====================================================================*/ - static int parse_device_geo(tuple_t *tuple, cistpl_device_geo_t *geo) { u_char *p, *q; @@ -1404,17 +1330,6 @@ int pcmcia_parse_tuple(tuple_t *tuple, cisparse_t *parse) case CISTPL_DEVICE_A: ret = parse_device(tuple, &parse->device); break; -#ifdef CONFIG_CARDBUS - case CISTPL_BAR: - ret = parse_bar(tuple, &parse->bar); - break; - case CISTPL_CONFIG_CB: - ret = parse_config_cb(tuple, &parse->config); - break; - case CISTPL_CFTABLE_ENTRY_CB: - ret = parse_cftable_entry_cb(tuple, &parse->cftable_entry_cb); - break; -#endif case CISTPL_CHECKSUM: ret = parse_checksum(tuple, &parse->checksum); break; @@ -1513,7 +1428,6 @@ done: kfree(buf); return ret; } -EXPORT_SYMBOL(pccard_read_tuple); /** @@ -1573,84 +1487,238 @@ next_entry: kfree(buf); return ret; } -EXPORT_SYMBOL(pccard_loop_tuple); -/*====================================================================== - - This tries to determine if a card has a sensible CIS. It returns - the number of tuples in the CIS, or 0 if the CIS looks bad. The - checks include making sure several critical tuples are present and - valid; seeing if the total number of tuples is reasonable; and - looking for tuples that use reserved codes. - -======================================================================*/ - +/** + * pccard_validate_cis() - check whether card has a sensible CIS + * @s: the struct pcmcia_socket we are to check + * @info: returns the number of tuples in the (valid) CIS, or 0 + * + * This tries to determine if a card has a sensible CIS. In @info, it + * returns the number of tuples in the CIS, or 0 if the CIS looks bad. The + * checks include making sure several critical tuples are present and + * valid; seeing if the total number of tuples is reasonable; and + * looking for tuples that use reserved codes. + * + * The function returns 0 on success. + */ int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *info) { - tuple_t *tuple; - cisparse_t *p; - unsigned int count = 0; - int ret, reserved, dev_ok = 0, ident_ok = 0; + tuple_t *tuple; + cisparse_t *p; + unsigned int count = 0; + int ret, reserved, dev_ok = 0, ident_ok = 0; - if (!s) - return -EINVAL; + if (!s) + return -EINVAL; - tuple = kmalloc(sizeof(*tuple), GFP_KERNEL); - if (tuple == NULL) { - dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n"); - return -ENOMEM; - } - p = kmalloc(sizeof(*p), GFP_KERNEL); - if (p == NULL) { - kfree(tuple); - dev_printk(KERN_WARNING, &s->dev, "no memory to validate CIS\n"); - return -ENOMEM; - } + /* We do not want to validate the CIS cache... */ + mutex_lock(&s->ops_mutex); + destroy_cis_cache(s); + mutex_unlock(&s->ops_mutex); - count = reserved = 0; - tuple->DesiredTuple = RETURN_FIRST_TUPLE; - tuple->Attributes = TUPLE_RETURN_COMMON; - ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple); - if (ret != 0) - goto done; - - /* First tuple should be DEVICE; we should really have either that - or a CFTABLE_ENTRY of some sort */ - if ((tuple->TupleCode == CISTPL_DEVICE) || - (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p) == 0) || - (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p) == 0)) - dev_ok++; - - /* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2 - tuple, for card identification. Certain old D-Link and Linksys - cards have only a broken VERS_2 tuple; hence the bogus test. */ - if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) || - (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) || - (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC)) - ident_ok++; - - if (!dev_ok && !ident_ok) - goto done; - - for (count = 1; count < MAX_TUPLES; count++) { - ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple); + tuple = kmalloc(sizeof(*tuple), GFP_KERNEL); + if (tuple == NULL) { + dev_warn(&s->dev, "no memory to validate CIS\n"); + return -ENOMEM; + } + p = kmalloc(sizeof(*p), GFP_KERNEL); + if (p == NULL) { + kfree(tuple); + dev_warn(&s->dev, "no memory to validate CIS\n"); + return -ENOMEM; + } + + count = reserved = 0; + tuple->DesiredTuple = RETURN_FIRST_TUPLE; + tuple->Attributes = TUPLE_RETURN_COMMON; + ret = pccard_get_first_tuple(s, BIND_FN_ALL, tuple); if (ret != 0) - break; - if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) || - ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) || - ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff))) - reserved++; - } - if ((count == MAX_TUPLES) || (reserved > 5) || - ((!dev_ok || !ident_ok) && (count > 10))) - count = 0; + goto done; + + /* First tuple should be DEVICE; we should really have either that + or a CFTABLE_ENTRY of some sort */ + if ((tuple->TupleCode == CISTPL_DEVICE) || + (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY, p)) || + (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_CFTABLE_ENTRY_CB, p))) + dev_ok++; + + /* All cards should have a MANFID tuple, and/or a VERS_1 or VERS_2 + tuple, for card identification. Certain old D-Link and Linksys + cards have only a broken VERS_2 tuple; hence the bogus test. */ + if ((pccard_read_tuple(s, BIND_FN_ALL, CISTPL_MANFID, p) == 0) || + (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_1, p) == 0) || + (pccard_read_tuple(s, BIND_FN_ALL, CISTPL_VERS_2, p) != -ENOSPC)) + ident_ok++; + + if (!dev_ok && !ident_ok) + goto done; + + for (count = 1; count < MAX_TUPLES; count++) { + ret = pccard_get_next_tuple(s, BIND_FN_ALL, tuple); + if (ret != 0) + break; + if (((tuple->TupleCode > 0x23) && (tuple->TupleCode < 0x40)) || + ((tuple->TupleCode > 0x47) && (tuple->TupleCode < 0x80)) || + ((tuple->TupleCode > 0x90) && (tuple->TupleCode < 0xff))) + reserved++; + } + if ((count == MAX_TUPLES) || (reserved > 5) || + ((!dev_ok || !ident_ok) && (count > 10))) + count = 0; + + ret = 0; done: - if (info) - *info = count; - kfree(tuple); - kfree(p); - return 0; + /* invalidate CIS cache on failure */ + if (!dev_ok || !ident_ok || !count) { + mutex_lock(&s->ops_mutex); + destroy_cis_cache(s); + mutex_unlock(&s->ops_mutex); + ret = -EIO; + } + + if (info) + *info = count; + kfree(tuple); + kfree(p); + return ret; } -EXPORT_SYMBOL(pccard_validate_cis); + + +#define to_socket(_dev) container_of(_dev, struct pcmcia_socket, dev) + +static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, + loff_t off, size_t count) +{ + tuple_t tuple; + int status, i; + loff_t pointer = 0; + ssize_t ret = 0; + u_char *tuplebuffer; + u_char *tempbuffer; + + tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); + if (!tuplebuffer) + return -ENOMEM; + + tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); + if (!tempbuffer) { + ret = -ENOMEM; + goto free_tuple; + } + + memset(&tuple, 0, sizeof(tuple_t)); + + tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; + tuple.DesiredTuple = RETURN_FIRST_TUPLE; + tuple.TupleOffset = 0; + + status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); + while (!status) { + tuple.TupleData = tuplebuffer; + tuple.TupleDataMax = 255; + memset(tuplebuffer, 0, sizeof(u_char) * 255); + + status = pccard_get_tuple_data(s, &tuple); + if (status) + break; + + if (off < (pointer + 2 + tuple.TupleDataLen)) { + tempbuffer[0] = tuple.TupleCode & 0xff; + tempbuffer[1] = tuple.TupleLink & 0xff; + for (i = 0; i < tuple.TupleDataLen; i++) + tempbuffer[i + 2] = tuplebuffer[i] & 0xff; + + for (i = 0; i < (2 + tuple.TupleDataLen); i++) { + if (((i + pointer) >= off) && + (i + pointer) < (off + count)) { + buf[ret] = tempbuffer[i]; + ret++; + } + } + } + + pointer += 2 + tuple.TupleDataLen; + + if (pointer >= (off + count)) + break; + + if (tuple.TupleCode == CISTPL_END) + break; + status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); + } + + kfree(tempbuffer); + free_tuple: + kfree(tuplebuffer); + + return ret; +} + + +static ssize_t pccard_show_cis(struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + unsigned int size = 0x200; + + if (off >= size) + count = 0; + else { + struct pcmcia_socket *s; + unsigned int chains; + + if (off + count > size) + count = size - off; + + s = to_socket(container_of(kobj, struct device, kobj)); + + if (!(s->state & SOCKET_PRESENT)) + return -ENODEV; + if (pccard_validate_cis(s, &chains)) + return -EIO; + if (!chains) + return -ENODATA; + + count = pccard_extract_cis(s, buf, off, count); + } + + return count; +} + + +static ssize_t pccard_store_cis(struct kobject *kobj, + struct bin_attribute *bin_attr, + char *buf, loff_t off, size_t count) +{ + struct pcmcia_socket *s; + int error; + + s = to_socket(container_of(kobj, struct device, kobj)); + + if (off) + return -EINVAL; + + if (count >= CISTPL_MAX_CIS_SIZE) + return -EINVAL; + + if (!(s->state & SOCKET_PRESENT)) + return -ENODEV; + + error = pcmcia_replace_cis(s, buf, count); + if (error) + return -EIO; + + pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); + + return count; +} + + +struct bin_attribute pccard_cis_attr = { + .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, + .size = 0x200, + .read = pccard_show_cis, + .write = pccard_store_cis, +}; diff --git a/drivers/pcmcia/cs.c b/drivers/pcmcia/cs.c index 6d6f82b..e679e70 100644 --- a/drivers/pcmcia/cs.c +++ b/drivers/pcmcia/cs.c @@ -140,19 +140,13 @@ struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt) struct device *dev = get_device(&skt->dev); if (!dev) return NULL; - skt = dev_get_drvdata(dev); - if (!try_module_get(skt->owner)) { - put_device(&skt->dev); - return NULL; - } - return skt; + return dev_get_drvdata(dev); } EXPORT_SYMBOL(pcmcia_get_socket); void pcmcia_put_socket(struct pcmcia_socket *skt) { - module_put(skt->owner); put_device(&skt->dev); } EXPORT_SYMBOL(pcmcia_put_socket); @@ -181,8 +175,6 @@ int pcmcia_register_socket(struct pcmcia_socket *socket) dev_dbg(&socket->dev, "pcmcia_register_socket(0x%p)\n", socket->ops); - spin_lock_init(&socket->lock); - /* try to obtain a socket number [yes, it gets ugly if we * register more than 2^sizeof(unsigned int) pcmcia * sockets... but the socket number is deprecated @@ -228,10 +220,13 @@ int pcmcia_register_socket(struct pcmcia_socket *socket) init_completion(&socket->socket_released); init_completion(&socket->thread_done); mutex_init(&socket->skt_mutex); + mutex_init(&socket->ops_mutex); spin_lock_init(&socket->thread_lock); if (socket->resource_ops->init) { + mutex_lock(&socket->ops_mutex); ret = socket->resource_ops->init(socket); + mutex_unlock(&socket->ops_mutex); if (ret) goto err; } @@ -283,15 +278,17 @@ void pcmcia_unregister_socket(struct pcmcia_socket *socket) if (socket->thread) kthread_stop(socket->thread); - release_cis_mem(socket); - /* remove from our own list */ down_write(&pcmcia_socket_list_rwsem); list_del(&socket->socket_list); up_write(&pcmcia_socket_list_rwsem); /* wait for sysfs to drop all references */ - release_resource_db(socket); + if (socket->resource_ops->exit) { + mutex_lock(&socket->ops_mutex); + socket->resource_ops->exit(socket); + mutex_unlock(&socket->ops_mutex); + } wait_for_completion(&socket->socket_released); } /* pcmcia_unregister_socket */ EXPORT_SYMBOL(pcmcia_unregister_socket); @@ -328,7 +325,7 @@ static int send_event(struct pcmcia_socket *s, event_t event, int priority) { int ret; - if (s->state & SOCKET_CARDBUS) + if ((s->state & SOCKET_CARDBUS) && (event != CS_EVENT_CARD_REMOVAL)) return 0; dev_dbg(&s->dev, "send_event(event %d, pri %d, callback 0x%p)\n", @@ -346,13 +343,6 @@ static int send_event(struct pcmcia_socket *s, event_t event, int priority) return ret; } -static void socket_remove_drivers(struct pcmcia_socket *skt) -{ - dev_dbg(&skt->dev, "remove_drivers\n"); - - send_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); -} - static int socket_reset(struct pcmcia_socket *skt) { int status, i; @@ -395,7 +385,9 @@ static void socket_shutdown(struct pcmcia_socket *s) dev_dbg(&s->dev, "shutdown\n"); - socket_remove_drivers(s); + send_event(s, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); + + mutex_lock(&s->ops_mutex); s->state &= SOCKET_INUSE | SOCKET_PRESENT; msleep(shutdown_delay * 10); s->state &= SOCKET_INUSE; @@ -406,11 +398,21 @@ static void socket_shutdown(struct pcmcia_socket *s) s->ops->set_socket(s, &s->socket); s->irq.AssignedIRQ = s->irq.Config = 0; s->lock_count = 0; - destroy_cis_cache(s); + kfree(s->fake_cis); + s->fake_cis = NULL; + s->functions = 0; + + /* From here on we can be sure that only we (that is, the + * pccardd thread) accesses this socket, and all (16-bit) + * PCMCIA interactions are gone. Therefore, release + * ops_mutex so that we don't get a sysfs-related lockdep + * warning. + */ + mutex_unlock(&s->ops_mutex); + #ifdef CONFIG_CARDBUS cb_free(s); #endif - s->functions = 0; /* give socket some time to power down */ msleep(100); @@ -421,7 +423,7 @@ static void socket_shutdown(struct pcmcia_socket *s) "*** DANGER *** unable to remove socket power\n"); } - cs_socket_put(s); + s->state &= ~SOCKET_INUSE; } static int socket_setup(struct pcmcia_socket *skt, int initial_delay) @@ -460,7 +462,8 @@ static int socket_setup(struct pcmcia_socket *skt, int initial_delay) return -EINVAL; } skt->state |= SOCKET_CARDBUS; - } + } else + skt->state &= ~SOCKET_CARDBUS; /* * Decode the card voltage requirements, and apply power to the card. @@ -509,8 +512,12 @@ static int socket_insert(struct pcmcia_socket *skt) dev_dbg(&skt->dev, "insert\n"); - if (!cs_socket_get(skt)) - return -ENODEV; + mutex_lock(&skt->ops_mutex); + if (skt->state & SOCKET_INUSE) { + mutex_unlock(&skt->ops_mutex); + return -EINVAL; + } + skt->state |= SOCKET_INUSE; ret = socket_setup(skt, setup_delay); if (ret == 0) { @@ -528,9 +535,11 @@ static int socket_insert(struct pcmcia_socket *skt) } #endif dev_dbg(&skt->dev, "insert done\n"); + mutex_unlock(&skt->ops_mutex); send_event(skt, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW); } else { + mutex_unlock(&skt->ops_mutex); socket_shutdown(skt); } @@ -542,58 +551,66 @@ static int socket_suspend(struct pcmcia_socket *skt) if (skt->state & SOCKET_SUSPEND) return -EBUSY; + mutex_lock(&skt->ops_mutex); + skt->suspended_state = skt->state; + send_event(skt, CS_EVENT_PM_SUSPEND, CS_EVENT_PRI_LOW); skt->socket = dead_socket; skt->ops->set_socket(skt, &skt->socket); if (skt->ops->suspend) skt->ops->suspend(skt); skt->state |= SOCKET_SUSPEND; - + mutex_unlock(&skt->ops_mutex); return 0; } static int socket_early_resume(struct pcmcia_socket *skt) { + mutex_lock(&skt->ops_mutex); skt->socket = dead_socket; skt->ops->init(skt); skt->ops->set_socket(skt, &skt->socket); if (skt->state & SOCKET_PRESENT) skt->resume_status = socket_setup(skt, resume_delay); + mutex_unlock(&skt->ops_mutex); return 0; } static int socket_late_resume(struct pcmcia_socket *skt) { - if (!(skt->state & SOCKET_PRESENT)) { - skt->state &= ~SOCKET_SUSPEND; + mutex_lock(&skt->ops_mutex); + skt->state &= ~SOCKET_SUSPEND; + mutex_unlock(&skt->ops_mutex); + + if (!(skt->state & SOCKET_PRESENT)) return socket_insert(skt); + + if (skt->resume_status) { + socket_shutdown(skt); + return 0; } - if (skt->resume_status == 0) { - /* - * FIXME: need a better check here for cardbus cards. - */ - if (verify_cis_cache(skt) != 0) { - dev_dbg(&skt->dev, "cis mismatch - different card\n"); - socket_remove_drivers(skt); - destroy_cis_cache(skt); - /* - * Workaround: give DS time to schedule removal. - * Remove me once the 100ms delay is eliminated - * in ds.c - */ - msleep(200); - send_event(skt, CS_EVENT_CARD_INSERTION, CS_EVENT_PRI_LOW); - } else { - dev_dbg(&skt->dev, "cis matches cache\n"); - send_event(skt, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW); - } - } else { + if (skt->suspended_state != skt->state) { + dev_dbg(&skt->dev, + "suspend state 0x%x != resume state 0x%x\n", + skt->suspended_state, skt->state); + socket_shutdown(skt); + return socket_insert(skt); } - skt->state &= ~SOCKET_SUSPEND; +#ifdef CONFIG_CARDBUS + if (skt->state & SOCKET_CARDBUS) { + /* We can't be sure the CardBus card is the same + * as the one previously inserted. Therefore, remove + * and re-add... */ + cb_free(skt); + cb_alloc(skt); + return 0; + } +#endif + send_event(skt, CS_EVENT_PM_RESUME, CS_EVENT_PRI_LOW); return 0; } @@ -672,20 +689,26 @@ static int pccardd(void *__skt) complete(&skt->thread_done); + /* wait for userspace to catch up */ + msleep(250); + set_freezable(); for (;;) { unsigned long flags; unsigned int events; + unsigned int sysfs_events; set_current_state(TASK_INTERRUPTIBLE); spin_lock_irqsave(&skt->thread_lock, flags); events = skt->thread_events; skt->thread_events = 0; + sysfs_events = skt->sysfs_events; + skt->sysfs_events = 0; spin_unlock_irqrestore(&skt->thread_lock, flags); + mutex_lock(&skt->skt_mutex); if (events) { - mutex_lock(&skt->skt_mutex); if (events & SS_DETECT) socket_detect_change(skt); if (events & SS_BATDEAD) @@ -694,10 +717,39 @@ static int pccardd(void *__skt) send_event(skt, CS_EVENT_BATTERY_LOW, CS_EVENT_PRI_LOW); if (events & SS_READY) send_event(skt, CS_EVENT_READY_CHANGE, CS_EVENT_PRI_LOW); - mutex_unlock(&skt->skt_mutex); - continue; } + if (sysfs_events) { + if (sysfs_events & PCMCIA_UEVENT_EJECT) + socket_remove(skt); + if (sysfs_events & PCMCIA_UEVENT_INSERT) + socket_insert(skt); + if ((sysfs_events & PCMCIA_UEVENT_RESUME) && + !(skt->state & SOCKET_CARDBUS)) { + ret = socket_resume(skt); + if (!ret && skt->callback) + skt->callback->resume(skt); + } + if ((sysfs_events & PCMCIA_UEVENT_SUSPEND) && + !(skt->state & SOCKET_CARDBUS)) { + if (skt->callback) + ret = skt->callback->suspend(skt); + else + ret = 0; + if (!ret) + socket_suspend(skt); + } + if ((sysfs_events & PCMCIA_UEVENT_REQUERY) && + !(skt->state & SOCKET_CARDBUS)) { + if (!ret && skt->callback) + skt->callback->requery(skt); + } + } + mutex_unlock(&skt->skt_mutex); + + if (events || sysfs_events) + continue; + if (kthread_should_stop()) break; @@ -707,6 +759,13 @@ static int pccardd(void *__skt) /* make sure we are running before we exit */ set_current_state(TASK_RUNNING); + /* shut down socket, if a device is still present */ + if (skt->state & SOCKET_PRESENT) { + mutex_lock(&skt->skt_mutex); + socket_remove(skt); + mutex_unlock(&skt->skt_mutex); + } + /* remove from the device core */ pccard_sysfs_remove_socket(&skt->dev); device_unregister(&skt->dev); @@ -732,6 +791,31 @@ void pcmcia_parse_events(struct pcmcia_socket *s, u_int events) } /* pcmcia_parse_events */ EXPORT_SYMBOL(pcmcia_parse_events); +/** + * pcmcia_parse_uevents() - tell pccardd to issue manual commands + * @s: the PCMCIA socket we wan't to command + * @events: events to pass to pccardd + * + * userspace-issued insert, eject, suspend and resume commands must be + * handled by pccardd to avoid any sysfs-related deadlocks. Valid events + * are PCMCIA_UEVENT_EJECT (for eject), PCMCIA_UEVENT__INSERT (for insert), + * PCMCIA_UEVENT_RESUME (for resume), PCMCIA_UEVENT_SUSPEND (for suspend) + * and PCMCIA_UEVENT_REQUERY (for re-querying the PCMCIA card). + */ +void pcmcia_parse_uevents(struct pcmcia_socket *s, u_int events) +{ + unsigned long flags; + dev_dbg(&s->dev, "parse_uevents: events %08x\n", events); + if (s->thread) { + spin_lock_irqsave(&s->thread_lock, flags); + s->sysfs_events |= events; + spin_unlock_irqrestore(&s->thread_lock, flags); + + wake_up_process(s->thread); + } +} +EXPORT_SYMBOL(pcmcia_parse_uevents); + /* register pcmcia_callback */ int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c) @@ -796,7 +880,10 @@ int pcmcia_reset_card(struct pcmcia_socket *skt) send_event(skt, CS_EVENT_RESET_PHYSICAL, CS_EVENT_PRI_LOW); if (skt->callback) skt->callback->suspend(skt); - if (socket_reset(skt) == 0) { + mutex_lock(&skt->ops_mutex); + ret = socket_reset(skt); + mutex_unlock(&skt->ops_mutex); + if (ret == 0) { send_event(skt, CS_EVENT_CARD_RESET, CS_EVENT_PRI_LOW); if (skt->callback) skt->callback->resume(skt); @@ -812,121 +899,6 @@ int pcmcia_reset_card(struct pcmcia_socket *skt) EXPORT_SYMBOL(pcmcia_reset_card); -/* These shut down or wake up a socket. They are sort of user - * initiated versions of the APM suspend and resume actions. - */ -int pcmcia_suspend_card(struct pcmcia_socket *skt) -{ - int ret; - - dev_dbg(&skt->dev, "suspending socket\n"); - - mutex_lock(&skt->skt_mutex); - do { - if (!(skt->state & SOCKET_PRESENT)) { - ret = -ENODEV; - break; - } - if (skt->state & SOCKET_CARDBUS) { - ret = -EPERM; - break; - } - if (skt->callback) { - ret = skt->callback->suspend(skt); - if (ret) - break; - } - ret = socket_suspend(skt); - } while (0); - mutex_unlock(&skt->skt_mutex); - - return ret; -} /* suspend_card */ -EXPORT_SYMBOL(pcmcia_suspend_card); - - -int pcmcia_resume_card(struct pcmcia_socket *skt) -{ - int ret; - - dev_dbg(&skt->dev, "waking up socket\n"); - - mutex_lock(&skt->skt_mutex); - do { - if (!(skt->state & SOCKET_PRESENT)) { - ret = -ENODEV; - break; - } - if (skt->state & SOCKET_CARDBUS) { - ret = -EPERM; - break; - } - ret = socket_resume(skt); - if (!ret && skt->callback) - skt->callback->resume(skt); - } while (0); - mutex_unlock(&skt->skt_mutex); - - return ret; -} /* resume_card */ -EXPORT_SYMBOL(pcmcia_resume_card); - - -/* These handle user requests to eject or insert a card. */ -int pcmcia_eject_card(struct pcmcia_socket *skt) -{ - int ret; - - dev_dbg(&skt->dev, "user eject request\n"); - - mutex_lock(&skt->skt_mutex); - do { - if (!(skt->state & SOCKET_PRESENT)) { - ret = -ENODEV; - break; - } - - ret = send_event(skt, CS_EVENT_EJECTION_REQUEST, CS_EVENT_PRI_LOW); - if (ret != 0) { - ret = -EINVAL; - break; - } - - socket_remove(skt); - ret = 0; - } while (0); - mutex_unlock(&skt->skt_mutex); - - return ret; -} /* eject_card */ -EXPORT_SYMBOL(pcmcia_eject_card); - - -int pcmcia_insert_card(struct pcmcia_socket *skt) -{ - int ret; - - dev_dbg(&skt->dev, "user insert request\n"); - - mutex_lock(&skt->skt_mutex); - do { - if (skt->state & SOCKET_PRESENT) { - ret = -EBUSY; - break; - } - if (socket_insert(skt) == -ENODEV) { - ret = -ENODEV; - break; - } - ret = 0; - } while (0); - mutex_unlock(&skt->skt_mutex); - - return ret; -} /* insert_card */ -EXPORT_SYMBOL(pcmcia_insert_card); - - static int pcmcia_socket_uevent(struct device *dev, struct kobj_uevent_env *env) { diff --git a/drivers/pcmcia/cs_internal.h b/drivers/pcmcia/cs_internal.h index 3bc02d5..f95864c 100644 --- a/drivers/pcmcia/cs_internal.h +++ b/drivers/pcmcia/cs_internal.h @@ -87,37 +87,11 @@ struct pccard_resource_ops { #define SOCKET_CARDBUS 0x8000 #define SOCKET_CARDBUS_CONFIG 0x10000 -static inline int cs_socket_get(struct pcmcia_socket *skt) -{ - int ret; - - WARN_ON(skt->state & SOCKET_INUSE); - - ret = try_module_get(skt->owner); - if (ret) - skt->state |= SOCKET_INUSE; - return ret; -} - -static inline void cs_socket_put(struct pcmcia_socket *skt) -{ - if (skt->state & SOCKET_INUSE) { - skt->state &= ~SOCKET_INUSE; - module_put(skt->owner); - } -} - /* * Stuff internal to module "pcmcia_core": */ -/* cistpl.c */ -int verify_cis_cache(struct pcmcia_socket *s); - -/* rsrc_mgr.c */ -void release_resource_db(struct pcmcia_socket *s); - /* socket_sysfs.c */ extern int pccard_sysfs_add_socket(struct device *dev); extern void pccard_sysfs_remove_socket(struct device *dev); @@ -125,8 +99,6 @@ extern void pccard_sysfs_remove_socket(struct device *dev); /* cardbus.c */ int cb_alloc(struct pcmcia_socket *s); void cb_free(struct pcmcia_socket *s); -int read_cb_mem(struct pcmcia_socket *s, int space, u_int addr, u_int len, - void *ptr); @@ -138,7 +110,8 @@ struct pcmcia_callback{ struct module *owner; int (*event) (struct pcmcia_socket *s, event_t event, int priority); - void (*requery) (struct pcmcia_socket *s, int new_cis); + void (*requery) (struct pcmcia_socket *s); + int (*validate) (struct pcmcia_socket *s, unsigned int *i); int (*suspend) (struct pcmcia_socket *s); int (*resume) (struct pcmcia_socket *s); }; @@ -151,16 +124,35 @@ extern struct class pcmcia_socket_class; int pccard_register_pcmcia(struct pcmcia_socket *s, struct pcmcia_callback *c); struct pcmcia_socket *pcmcia_get_socket_by_nr(unsigned int nr); -int pcmcia_suspend_card(struct pcmcia_socket *skt); -int pcmcia_resume_card(struct pcmcia_socket *skt); - -int pcmcia_eject_card(struct pcmcia_socket *skt); -int pcmcia_insert_card(struct pcmcia_socket *skt); +void pcmcia_parse_uevents(struct pcmcia_socket *socket, unsigned int events); +#define PCMCIA_UEVENT_EJECT 0x0001 +#define PCMCIA_UEVENT_INSERT 0x0002 +#define PCMCIA_UEVENT_SUSPEND 0x0004 +#define PCMCIA_UEVENT_RESUME 0x0008 +#define PCMCIA_UEVENT_REQUERY 0x0010 struct pcmcia_socket *pcmcia_get_socket(struct pcmcia_socket *skt); void pcmcia_put_socket(struct pcmcia_socket *skt); +/* + * Stuff internal to module "pcmcia". + */ +/* ds.c */ +extern struct bus_type pcmcia_bus_type; + +/* pcmcia_resource.c */ +extern int pcmcia_release_configuration(struct pcmcia_device *p_dev); +extern int pcmcia_validate_mem(struct pcmcia_socket *s); +extern struct resource *pcmcia_find_mem_region(u_long base, + u_long num, + u_long align, + int low, + struct pcmcia_socket *s); + + /* cistpl.c */ +extern struct bin_attribute pccard_cis_attr; + int pcmcia_read_cis_mem(struct pcmcia_socket *s, int attr, u_int addr, u_int len, void *ptr); void pcmcia_write_cis_mem(struct pcmcia_socket *s, int attr, @@ -172,8 +164,8 @@ int pccard_read_tuple(struct pcmcia_socket *s, unsigned int function, int pcmcia_replace_cis(struct pcmcia_socket *s, const u8 *data, const size_t len); int pccard_validate_cis(struct pcmcia_socket *s, unsigned int *count); +int verify_cis_cache(struct pcmcia_socket *s); -/* loop over CIS entries */ int pccard_loop_tuple(struct pcmcia_socket *s, unsigned int function, cisdata_t code, cisparse_t *parse, void *priv_data, int (*loop_tuple) (tuple_t *tuple, @@ -189,35 +181,8 @@ int pccard_get_next_tuple(struct pcmcia_socket *s, unsigned int function, int pccard_get_tuple_data(struct pcmcia_socket *s, tuple_t *tuple); -/* rsrc_mgr.c */ -int pcmcia_validate_mem(struct pcmcia_socket *s); -struct resource *pcmcia_find_io_region(unsigned long base, - int num, - unsigned long align, - struct pcmcia_socket *s); -int pcmcia_adjust_io_region(struct resource *res, - unsigned long r_start, - unsigned long r_end, - struct pcmcia_socket *s); -struct resource *pcmcia_find_mem_region(u_long base, - u_long num, - u_long align, - int low, - struct pcmcia_socket *s); - -/* - * Stuff internal to module "pcmcia". - */ -/* ds.c */ -extern struct bus_type pcmcia_bus_type; - -/* pcmcia_resource.c */ -extern int pcmcia_release_configuration(struct pcmcia_device *p_dev); - #ifdef CONFIG_PCMCIA_IOCTL /* ds.c */ -extern spinlock_t pcmcia_dev_list_lock; - extern struct pcmcia_device *pcmcia_get_dev(struct pcmcia_device *p_dev); extern void pcmcia_put_dev(struct pcmcia_device *p_dev); diff --git a/drivers/pcmcia/db1xxx_ss.c b/drivers/pcmcia/db1xxx_ss.c new file mode 100644 index 0000000..3889cf0 --- /dev/null +++ b/drivers/pcmcia/db1xxx_ss.c @@ -0,0 +1,623 @@ +/* + * PCMCIA socket code for the Alchemy Db1xxx/Pb1xxx boards. + * + * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> + * + */ + +/* This is a fairly generic PCMCIA socket driver suitable for the + * following Alchemy Development boards: + * Db1000, Db/Pb1500, Db/Pb1100, Db/Pb1550, Db/Pb1200. + * + * The Db1000 is used as a reference: Per-socket card-, carddetect- and + * statuschange IRQs connected to SoC GPIOs, control and status register + * bits arranged in per-socket groups in an external PLD. All boards + * listed here use this layout, including bit positions and meanings. + * Of course there are exceptions in later boards: + * + * - Pb1100/Pb1500: single socket only; voltage key bits VS are + * at STATUS[5:4] (instead of STATUS[1:0]). + * - Au1200-based: additional card-eject irqs, irqs not gpios! + */ + +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/pm.h> +#include <linux/platform_device.h> +#include <linux/resource.h> +#include <linux/spinlock.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/ss.h> + +#include <asm/mach-au1x00/au1000.h> +#include <asm/mach-db1x00/bcsr.h> + +#define MEM_MAP_SIZE 0x400000 +#define IO_MAP_SIZE 0x1000 + +struct db1x_pcmcia_sock { + struct pcmcia_socket socket; + int nr; /* socket number */ + void *virt_io; + + /* the "pseudo" addresses of the PCMCIA space. */ + phys_addr_t phys_io; + phys_addr_t phys_attr; + phys_addr_t phys_mem; + + /* previous flags for set_socket() */ + unsigned int old_flags; + + /* interrupt sources: linux irq numbers! */ + int insert_irq; /* default carddetect irq */ + int stschg_irq; /* card-status-change irq */ + int card_irq; /* card irq */ + int eject_irq; /* db1200/pb1200 have these */ + +#define BOARD_TYPE_DEFAULT 0 /* most boards */ +#define BOARD_TYPE_DB1200 1 /* IRQs aren't gpios */ +#define BOARD_TYPE_PB1100 2 /* VS bits slightly different */ + int board_type; +}; + +#define to_db1x_socket(x) container_of(x, struct db1x_pcmcia_sock, socket) + +/* DB/PB1200: check CPLD SIGSTATUS register bit 10/12 */ +static int db1200_card_inserted(struct db1x_pcmcia_sock *sock) +{ + unsigned short sigstat; + + sigstat = bcsr_read(BCSR_SIGSTAT); + return sigstat & 1 << (8 + 2 * sock->nr); +} + +/* carddetect gpio: low-active */ +static int db1000_card_inserted(struct db1x_pcmcia_sock *sock) +{ + return !gpio_get_value(irq_to_gpio(sock->insert_irq)); +} + +static int db1x_card_inserted(struct db1x_pcmcia_sock *sock) +{ + switch (sock->board_type) { + case BOARD_TYPE_DB1200: + return db1200_card_inserted(sock); + default: + return db1000_card_inserted(sock); + } +} + +/* STSCHG tends to bounce heavily when cards are inserted/ejected. + * To avoid this, the interrupt is normally disabled and only enabled + * after reset to a card has been de-asserted. + */ +static inline void set_stschg(struct db1x_pcmcia_sock *sock, int en) +{ + if (sock->stschg_irq != -1) { + if (en) + enable_irq(sock->stschg_irq); + else + disable_irq(sock->stschg_irq); + } +} + +static irqreturn_t db1000_pcmcia_cdirq(int irq, void *data) +{ + struct db1x_pcmcia_sock *sock = data; + + pcmcia_parse_events(&sock->socket, SS_DETECT); + + return IRQ_HANDLED; +} + +static irqreturn_t db1000_pcmcia_stschgirq(int irq, void *data) +{ + struct db1x_pcmcia_sock *sock = data; + + pcmcia_parse_events(&sock->socket, SS_STSCHG); + + return IRQ_HANDLED; +} + +static irqreturn_t db1200_pcmcia_cdirq(int irq, void *data) +{ + struct db1x_pcmcia_sock *sock = data; + + /* Db/Pb1200 have separate per-socket insertion and ejection + * interrupts which stay asserted as long as the card is + * inserted/missing. The one which caused us to be called + * needs to be disabled and the other one enabled. + */ + if (irq == sock->insert_irq) { + disable_irq_nosync(sock->insert_irq); + enable_irq(sock->eject_irq); + } else { + disable_irq_nosync(sock->eject_irq); + enable_irq(sock->insert_irq); + } + + pcmcia_parse_events(&sock->socket, SS_DETECT); + + return IRQ_HANDLED; +} + +static int db1x_pcmcia_setup_irqs(struct db1x_pcmcia_sock *sock) +{ + int ret; + unsigned long flags; + + if (sock->stschg_irq != -1) { + ret = request_irq(sock->stschg_irq, db1000_pcmcia_stschgirq, + 0, "pcmcia_stschg", sock); + if (ret) + return ret; + } + + /* Db/Pb1200 have separate per-socket insertion and ejection + * interrupts, which should show edge behaviour but don't. + * So interrupts are disabled until both insertion and + * ejection handler have been registered and the currently + * active one disabled. + */ + if (sock->board_type == BOARD_TYPE_DB1200) { + local_irq_save(flags); + + ret = request_irq(sock->insert_irq, db1200_pcmcia_cdirq, + IRQF_DISABLED, "pcmcia_insert", sock); + if (ret) + goto out1; + + ret = request_irq(sock->eject_irq, db1200_pcmcia_cdirq, + IRQF_DISABLED, "pcmcia_eject", sock); + if (ret) { + free_irq(sock->insert_irq, sock); + local_irq_restore(flags); + goto out1; + } + + /* disable the currently active one */ + if (db1200_card_inserted(sock)) + disable_irq_nosync(sock->insert_irq); + else + disable_irq_nosync(sock->eject_irq); + + local_irq_restore(flags); + } else { + /* all other (older) Db1x00 boards use a GPIO to show + * card detection status: use both-edge triggers. + */ + set_irq_type(sock->insert_irq, IRQ_TYPE_EDGE_BOTH); + ret = request_irq(sock->insert_irq, db1000_pcmcia_cdirq, + 0, "pcmcia_carddetect", sock); + + if (ret) + goto out1; + } + + return 0; /* all done */ + +out1: + if (sock->stschg_irq != -1) + free_irq(sock->stschg_irq, sock); + + return ret; +} + +static void db1x_pcmcia_free_irqs(struct db1x_pcmcia_sock *sock) +{ + if (sock->stschg_irq != -1) + free_irq(sock->stschg_irq, sock); + + free_irq(sock->insert_irq, sock); + if (sock->eject_irq != -1) + free_irq(sock->eject_irq, sock); +} + +/* + * configure a PCMCIA socket on the Db1x00 series of boards (and + * compatibles). + * + * 2 external registers are involved: + * pcmcia_status (offset 0x04): bits [0:1/2:3]: read card voltage id + * pcmcia_control(offset 0x10): + * bits[0:1] set vcc for card + * bits[2:3] set vpp for card + * bit 4: enable data buffers + * bit 7: reset# for card + * add 8 for second socket. + */ +static int db1x_pcmcia_configure(struct pcmcia_socket *skt, + struct socket_state_t *state) +{ + struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); + unsigned short cr_clr, cr_set; + unsigned int changed; + int v, p, ret; + + /* card voltage setup */ + cr_clr = (0xf << (sock->nr * 8)); /* clear voltage settings */ + cr_set = 0; + v = p = ret = 0; + + switch (state->Vcc) { + case 50: + ++v; + case 33: + ++v; + case 0: + break; + default: + printk(KERN_INFO "pcmcia%d unsupported Vcc %d\n", + sock->nr, state->Vcc); + } + + switch (state->Vpp) { + case 12: + ++p; + case 33: + case 50: + ++p; + case 0: + break; + default: + printk(KERN_INFO "pcmcia%d unsupported Vpp %d\n", + sock->nr, state->Vpp); + } + + /* sanity check: Vpp must be 0, 12, or Vcc */ + if (((state->Vcc == 33) && (state->Vpp == 50)) || + ((state->Vcc == 50) && (state->Vpp == 33))) { + printk(KERN_INFO "pcmcia%d bad Vcc/Vpp combo (%d %d)\n", + sock->nr, state->Vcc, state->Vpp); + v = p = 0; + ret = -EINVAL; + } + + /* create new voltage code */ + cr_set |= ((v << 2) | p) << (sock->nr * 8); + + changed = state->flags ^ sock->old_flags; + + if (changed & SS_RESET) { + if (state->flags & SS_RESET) { + set_stschg(sock, 0); + /* assert reset, disable io buffers */ + cr_clr |= (1 << (7 + (sock->nr * 8))); + cr_clr |= (1 << (4 + (sock->nr * 8))); + } else { + /* de-assert reset, enable io buffers */ + cr_set |= 1 << (7 + (sock->nr * 8)); + cr_set |= 1 << (4 + (sock->nr * 8)); + } + } + + /* update PCMCIA configuration */ + bcsr_mod(BCSR_PCMCIA, cr_clr, cr_set); + + sock->old_flags = state->flags; + + /* reset was taken away: give card time to initialize properly */ + if ((changed & SS_RESET) && !(state->flags & SS_RESET)) { + msleep(500); + set_stschg(sock, 1); + } + + return ret; +} + +/* VCC bits at [3:2]/[11:10] */ +#define GET_VCC(cr, socknr) \ + ((((cr) >> 2) >> ((socknr) * 8)) & 3) + +/* VS bits at [0:1]/[3:2] */ +#define GET_VS(sr, socknr) \ + (((sr) >> (2 * (socknr))) & 3) + +/* reset bits at [7]/[15] */ +#define GET_RESET(cr, socknr) \ + ((cr) & (1 << (7 + (8 * (socknr))))) + +static int db1x_pcmcia_get_status(struct pcmcia_socket *skt, + unsigned int *value) +{ + struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); + unsigned short cr, sr; + unsigned int status; + + status = db1x_card_inserted(sock) ? SS_DETECT : 0; + + cr = bcsr_read(BCSR_PCMCIA); + sr = bcsr_read(BCSR_STATUS); + + /* PB1100/PB1500: voltage key bits are at [5:4] */ + if (sock->board_type == BOARD_TYPE_PB1100) + sr >>= 4; + + /* determine card type */ + switch (GET_VS(sr, sock->nr)) { + case 0: + case 2: + status |= SS_3VCARD; /* 3V card */ + case 3: + break; /* 5V card: set nothing */ + default: + status |= SS_XVCARD; /* treated as unsupported in core */ + } + + /* if Vcc is not zero, we have applied power to a card */ + status |= GET_VCC(cr, sock->nr) ? SS_POWERON : 0; + + /* reset de-asserted? then we're ready */ + status |= (GET_RESET(cr, sock->nr)) ? SS_READY : SS_RESET; + + *value = status; + + return 0; +} + +static int db1x_pcmcia_sock_init(struct pcmcia_socket *skt) +{ + return 0; +} + +static int db1x_pcmcia_sock_suspend(struct pcmcia_socket *skt) +{ + return 0; +} + +static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt, + struct pccard_io_map *map) +{ + struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); + + map->start = (u32)sock->virt_io; + map->stop = map->start + IO_MAP_SIZE; + + return 0; +} + +static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt, + struct pccard_mem_map *map) +{ + struct db1x_pcmcia_sock *sock = to_db1x_socket(skt); + + if (map->flags & MAP_ATTRIB) + map->static_start = sock->phys_attr + map->card_start; + else + map->static_start = sock->phys_mem + map->card_start; + + return 0; +} + +static struct pccard_operations db1x_pcmcia_operations = { + .init = db1x_pcmcia_sock_init, + .suspend = db1x_pcmcia_sock_suspend, + .get_status = db1x_pcmcia_get_status, + .set_socket = db1x_pcmcia_configure, + .set_io_map = au1x00_pcmcia_set_io_map, + .set_mem_map = au1x00_pcmcia_set_mem_map, +}; + +static int __devinit db1x_pcmcia_socket_probe(struct platform_device *pdev) +{ + struct db1x_pcmcia_sock *sock; + struct resource *r; + int ret, bid; + + sock = kzalloc(sizeof(struct db1x_pcmcia_sock), GFP_KERNEL); + if (!sock) + return -ENOMEM; + + sock->nr = pdev->id; + + bid = BCSR_WHOAMI_BOARD(bcsr_read(BCSR_WHOAMI)); + switch (bid) { + case BCSR_WHOAMI_PB1500: + case BCSR_WHOAMI_PB1500R2: + case BCSR_WHOAMI_PB1100: + sock->board_type = BOARD_TYPE_PB1100; + break; + case BCSR_WHOAMI_DB1000 ... BCSR_WHOAMI_PB1550_SDR: + sock->board_type = BOARD_TYPE_DEFAULT; + break; + case BCSR_WHOAMI_PB1200 ... BCSR_WHOAMI_DB1200: + sock->board_type = BOARD_TYPE_DB1200; + break; + default: + printk(KERN_INFO "db1xxx-ss: unknown board %d!\n", bid); + ret = -ENODEV; + goto out0; + }; + + /* + * gather resources necessary and optional nice-to-haves to + * operate a socket: + * This includes IRQs for Carddetection/ejection, the card + * itself and optional status change detection. + * Also, the memory areas covered by a socket. For these + * we require the 32bit "pseudo" addresses (see the au1000.h + * header for more information). + */ + + /* card: irq assigned to the card itself. */ + r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "card"); + sock->card_irq = r ? r->start : 0; + + /* insert: irq which triggers on card insertion/ejection */ + r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "insert"); + sock->insert_irq = r ? r->start : -1; + + /* stschg: irq which trigger on card status change (optional) */ + r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "stschg"); + sock->stschg_irq = r ? r->start : -1; + + /* eject: irq which triggers on ejection (DB1200/PB1200 only) */ + r = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "eject"); + sock->eject_irq = r ? r->start : -1; + + ret = -ENODEV; + + /* + * pseudo-attr: The 32bit address of the PCMCIA attribute space + * for this socket (usually the 36bit address shifted 4 to the + * right). + */ + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr"); + if (!r) { + printk(KERN_ERR "pcmcia%d has no 'pseudo-attr' resource!\n", + sock->nr); + goto out0; + } + sock->phys_attr = r->start; + + /* + * pseudo-mem: The 32bit address of the PCMCIA memory space for + * this socket (usually the 36bit address shifted 4 to the right) + */ + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem"); + if (!r) { + printk(KERN_ERR "pcmcia%d has no 'pseudo-mem' resource!\n", + sock->nr); + goto out0; + } + sock->phys_mem = r->start; + + /* + * pseudo-io: The 32bit address of the PCMCIA IO space for this + * socket (usually the 36bit address shifted 4 to the right). + */ + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io"); + if (!r) { + printk(KERN_ERR "pcmcia%d has no 'pseudo-io' resource!\n", + sock->nr); + goto out0; + } + sock->phys_io = r->start; + + /* + * PCMCIA client drivers use the inb/outb macros to access + * the IO registers. Since mips_io_port_base is added + * to the access address of the mips implementation of + * inb/outb, we need to subtract it here because we want + * to access the I/O or MEM address directly, without + * going through this "mips_io_port_base" mechanism. + */ + sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) - + mips_io_port_base); + + if (!sock->virt_io) { + printk(KERN_ERR "pcmcia%d: cannot remap IO area\n", + sock->nr); + ret = -ENOMEM; + goto out0; + } + + sock->socket.ops = &db1x_pcmcia_operations; + sock->socket.owner = THIS_MODULE; + sock->socket.pci_irq = sock->card_irq; + sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; + sock->socket.map_size = MEM_MAP_SIZE; + sock->socket.io_offset = (unsigned long)sock->virt_io; + sock->socket.dev.parent = &pdev->dev; + sock->socket.resource_ops = &pccard_static_ops; + + platform_set_drvdata(pdev, sock); + + ret = db1x_pcmcia_setup_irqs(sock); + if (ret) { + printk(KERN_ERR "pcmcia%d cannot setup interrupts\n", + sock->nr); + goto out1; + } + + set_stschg(sock, 0); + + ret = pcmcia_register_socket(&sock->socket); + if (ret) { + printk(KERN_ERR "pcmcia%d failed to register\n", sock->nr); + goto out2; + } + + printk(KERN_INFO "Alchemy Db/Pb1xxx pcmcia%d @ io/attr/mem %09llx" + "(%p) %09llx %09llx card/insert/stschg/eject irqs @ %d " + "%d %d %d\n", sock->nr, sock->phys_io, sock->virt_io, + sock->phys_attr, sock->phys_mem, sock->card_irq, + sock->insert_irq, sock->stschg_irq, sock->eject_irq); + + return 0; + +out2: + db1x_pcmcia_free_irqs(sock); +out1: + iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); +out0: + kfree(sock); + return ret; +} + +static int __devexit db1x_pcmcia_socket_remove(struct platform_device *pdev) +{ + struct db1x_pcmcia_sock *sock = platform_get_drvdata(pdev); + + db1x_pcmcia_free_irqs(sock); + pcmcia_unregister_socket(&sock->socket); + iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); + kfree(sock); + + return 0; +} + +#ifdef CONFIG_PM +static int db1x_pcmcia_suspend(struct device *dev) +{ + return pcmcia_socket_dev_suspend(dev); +} + +static int db1x_pcmcia_resume(struct device *dev) +{ + return pcmcia_socket_dev_resume(dev); +} + +static struct dev_pm_ops db1x_pcmcia_pmops = { + .resume = db1x_pcmcia_resume, + .suspend = db1x_pcmcia_suspend, + .thaw = db1x_pcmcia_resume, + .freeze = db1x_pcmcia_suspend, +}; + +#define DB1XXX_SS_PMOPS &db1x_pcmcia_pmops + +#else + +#define DB1XXX_SS_PMOPS NULL + +#endif + +static struct platform_driver db1x_pcmcia_socket_driver = { + .driver = { + .name = "db1xxx_pcmcia", + .owner = THIS_MODULE, + .pm = DB1XXX_SS_PMOPS + }, + .probe = db1x_pcmcia_socket_probe, + .remove = __devexit_p(db1x_pcmcia_socket_remove), +}; + +int __init db1x_pcmcia_socket_load(void) +{ + return platform_driver_register(&db1x_pcmcia_socket_driver); +} + +void __exit db1x_pcmcia_socket_unload(void) +{ + platform_driver_unregister(&db1x_pcmcia_socket_driver); +} + +module_init(db1x_pcmcia_socket_load); +module_exit(db1x_pcmcia_socket_unload); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("PCMCIA Socket Services for Alchemy Db/Pb1x00 boards"); +MODULE_AUTHOR("Manuel Lauss"); diff --git a/drivers/pcmcia/ds.c b/drivers/pcmcia/ds.c index 1a4a3c4..0f98be4 100644 --- a/drivers/pcmcia/ds.c +++ b/drivers/pcmcia/ds.c @@ -42,8 +42,6 @@ MODULE_DESCRIPTION("PCMCIA Driver Services"); MODULE_LICENSE("GPL"); -spinlock_t pcmcia_dev_list_lock; - /*====================================================================*/ static void pcmcia_check_driver(struct pcmcia_driver *p_drv) @@ -126,9 +124,9 @@ pcmcia_store_new_id(struct device_driver *driver, const char *buf, size_t count) dynid->id.device_no = device_no; memcpy(dynid->id.prod_id_hash, prod_id_hash, sizeof(__u32) * 4); - spin_lock(&pdrv->dynids.lock); + mutex_lock(&pdrv->dynids.lock); list_add_tail(&dynid->node, &pdrv->dynids.list); - spin_unlock(&pdrv->dynids.lock); + mutex_unlock(&pdrv->dynids.lock); if (get_driver(&pdrv->drv)) { retval = driver_attach(&pdrv->drv); @@ -146,12 +144,12 @@ pcmcia_free_dynids(struct pcmcia_driver *drv) { struct pcmcia_dynid *dynid, *n; - spin_lock(&drv->dynids.lock); + mutex_lock(&drv->dynids.lock); list_for_each_entry_safe(dynid, n, &drv->dynids.list, node) { list_del(&dynid->node); kfree(dynid); } - spin_unlock(&drv->dynids.lock); + mutex_unlock(&drv->dynids.lock); } static int @@ -182,7 +180,7 @@ int pcmcia_register_driver(struct pcmcia_driver *driver) /* initialize common fields */ driver->drv.bus = &pcmcia_bus_type; driver->drv.owner = driver->owner; - spin_lock_init(&driver->dynids.lock); + mutex_init(&driver->dynids.lock); INIT_LIST_HEAD(&driver->dynids.list); pr_debug("registering driver %s\n", driver->drv.name); @@ -239,30 +237,21 @@ static void pcmcia_release_function(struct kref *ref) static void pcmcia_release_dev(struct device *dev) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); + int i; dev_dbg(dev, "releasing device\n"); pcmcia_put_socket(p_dev->socket); + for (i = 0; i < 4; i++) + kfree(p_dev->prod_id[i]); kfree(p_dev->devname); kref_put(&p_dev->function_config->ref, pcmcia_release_function); kfree(p_dev); } -static void pcmcia_add_device_later(struct pcmcia_socket *s, int mfc) -{ - if (!s->pcmcia_state.device_add_pending) { - dev_dbg(&s->dev, "scheduling to add %s secondary" - " device to %d\n", mfc ? "mfc" : "pfc", s->sock); - s->pcmcia_state.device_add_pending = 1; - s->pcmcia_state.mfc_pfc = mfc; - schedule_work(&s->device_add); - } - return; -} static int pcmcia_device_probe(struct device *dev) { struct pcmcia_device *p_dev; struct pcmcia_driver *p_drv; - struct pcmcia_device_id *did; struct pcmcia_socket *s; cistpl_config_t cis_config; int ret = 0; @@ -275,18 +264,6 @@ static int pcmcia_device_probe(struct device *dev) p_drv = to_pcmcia_drv(dev->driver); s = p_dev->socket; - /* The PCMCIA code passes the match data in via dev_set_drvdata(dev) - * which is an ugly hack. Once the driver probe is called it may - * and often will overwrite the match data so we must save it first - * - * handle pseudo multifunction devices: - * there are at most two pseudo multifunction devices. - * if we're matching against the first, schedule a - * call which will then check whether there are two - * pseudo devices, and if not, add the second one. - */ - did = dev_get_drvdata(&p_dev->dev); - dev_dbg(dev, "trying to bind to %s\n", p_drv->drv.name); if ((!p_drv->probe) || (!p_dev->function_config) || @@ -315,9 +292,11 @@ static int pcmcia_device_probe(struct device *dev) goto put_module; } - if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && + mutex_lock(&s->ops_mutex); + if ((s->pcmcia_state.has_pfc) && (p_dev->socket->device_count == 1) && (p_dev->device_no == 0)) - pcmcia_add_device_later(p_dev->socket, 0); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); + mutex_unlock(&s->ops_mutex); put_module: if (ret) @@ -336,26 +315,27 @@ static void pcmcia_card_remove(struct pcmcia_socket *s, struct pcmcia_device *le { struct pcmcia_device *p_dev; struct pcmcia_device *tmp; - unsigned long flags; dev_dbg(leftover ? &leftover->dev : &s->dev, "pcmcia_card_remove(%d) %s\n", s->sock, leftover ? leftover->devname : ""); + mutex_lock(&s->ops_mutex); if (!leftover) s->device_count = 0; else s->device_count = 1; + mutex_unlock(&s->ops_mutex); /* unregister all pcmcia_devices registered with this socket, except leftover */ list_for_each_entry_safe(p_dev, tmp, &s->devices_list, socket_device_list) { if (p_dev == leftover) continue; - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); list_del(&p_dev->socket_device_list); p_dev->_removed = 1; - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); dev_dbg(&p_dev->dev, "unregistering device\n"); device_unregister(&p_dev->dev); @@ -368,7 +348,6 @@ static int pcmcia_device_remove(struct device *dev) { struct pcmcia_device *p_dev; struct pcmcia_driver *p_drv; - struct pcmcia_device_id *did; int i; p_dev = to_pcmcia_dev(dev); @@ -380,9 +359,8 @@ static int pcmcia_device_remove(struct device *dev) * pseudo multi-function card, we need to unbind * all devices */ - did = dev_get_drvdata(&p_dev->dev); - if (did && (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) && - (p_dev->socket->device_count != 0) && + if ((p_dev->socket->pcmcia_state.has_pfc) && + (p_dev->socket->device_count > 0) && (p_dev->device_no == 0)) pcmcia_card_remove(p_dev->socket, p_dev); @@ -431,16 +409,20 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev) if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_MANFID, &manf_id)) { + mutex_lock(&p_dev->socket->ops_mutex); p_dev->manf_id = manf_id.manf; p_dev->card_id = manf_id.card; p_dev->has_manf_id = 1; p_dev->has_card_id = 1; + mutex_unlock(&p_dev->socket->ops_mutex); } if (!pccard_read_tuple(p_dev->socket, p_dev->func, CISTPL_FUNCID, &func_id)) { + mutex_lock(&p_dev->socket->ops_mutex); p_dev->func_id = func_id.func; p_dev->has_func_id = 1; + mutex_unlock(&p_dev->socket->ops_mutex); } else { /* rule of thumb: cards with no FUNCID, but with * common memory device geometry information, are @@ -457,17 +439,21 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev) dev_dbg(&p_dev->dev, "mem device geometry probably means " "FUNCID_MEMORY\n"); + mutex_lock(&p_dev->socket->ops_mutex); p_dev->func_id = CISTPL_FUNCID_MEMORY; p_dev->has_func_id = 1; + mutex_unlock(&p_dev->socket->ops_mutex); } kfree(devgeo); } if (!pccard_read_tuple(p_dev->socket, BIND_FN_ALL, CISTPL_VERS_1, vers1)) { + mutex_lock(&p_dev->socket->ops_mutex); for (i = 0; i < min_t(unsigned int, 4, vers1->ns); i++) { char *tmp; unsigned int length; + char *new; tmp = vers1->str + vers1->ofs[i]; @@ -475,14 +461,17 @@ static int pcmcia_device_query(struct pcmcia_device *p_dev) if ((length < 2) || (length > 255)) continue; - p_dev->prod_id[i] = kmalloc(sizeof(char) * length, - GFP_KERNEL); - if (!p_dev->prod_id[i]) + new = kmalloc(sizeof(char) * length, GFP_KERNEL); + if (!new) continue; - p_dev->prod_id[i] = strncpy(p_dev->prod_id[i], - tmp, length); + new = strncpy(new, tmp, length); + + tmp = p_dev->prod_id[i]; + p_dev->prod_id[i] = new; + kfree(tmp); } + mutex_unlock(&p_dev->socket->ops_mutex); } kfree(vers1); @@ -502,7 +491,7 @@ static DEFINE_MUTEX(device_add_lock); struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int function) { struct pcmcia_device *p_dev, *tmp_dev; - unsigned long flags; + int i; s = pcmcia_get_socket(s); if (!s) @@ -512,16 +501,19 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu pr_debug("adding device to %d, function %d\n", s->sock, function); - /* max of 4 devices per card */ - if (s->device_count == 4) - goto err_put; - p_dev = kzalloc(sizeof(struct pcmcia_device), GFP_KERNEL); if (!p_dev) goto err_put; - p_dev->socket = s; + mutex_lock(&s->ops_mutex); p_dev->device_no = (s->device_count++); + mutex_unlock(&s->ops_mutex); + + /* max of 2 devices per card */ + if (p_dev->device_no >= 2) + goto err_free; + + p_dev->socket = s; p_dev->func = function; p_dev->dev.bus = &pcmcia_bus_type; @@ -538,7 +530,7 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu goto err_free; dev_dbg(&p_dev->dev, "devname is %s\n", p_dev->devname); - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); /* * p_dev->function_config must be the same for all card functions. @@ -556,7 +548,7 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu /* Add to the list in pcmcia_bus_socket */ list_add(&p_dev->socket_device_list, &s->devices_list); - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); if (!p_dev->function_config) { dev_dbg(&p_dev->dev, "creating config_t\n"); @@ -581,14 +573,19 @@ struct pcmcia_device *pcmcia_device_add(struct pcmcia_socket *s, unsigned int fu return p_dev; err_unreg: - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); list_del(&p_dev->socket_device_list); - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); err_free: + mutex_lock(&s->ops_mutex); + s->device_count--; + mutex_unlock(&s->ops_mutex); + + for (i = 0; i < 4; i++) + kfree(p_dev->prod_id[i]); kfree(p_dev->devname); kfree(p_dev); - s->device_count--; err_put: mutex_unlock(&device_add_lock); pcmcia_put_socket(s); @@ -601,19 +598,23 @@ static int pcmcia_card_add(struct pcmcia_socket *s) { cistpl_longlink_mfc_t mfc; unsigned int no_funcs, i, no_chains; - int ret = 0; + int ret = -EAGAIN; + mutex_lock(&s->ops_mutex); if (!(s->resource_setup_done)) { dev_dbg(&s->dev, "no resources available, delaying card_add\n"); + mutex_unlock(&s->ops_mutex); return -EAGAIN; /* try again, but later... */ } if (pcmcia_validate_mem(s)) { dev_dbg(&s->dev, "validating mem resources failed, " "delaying card_add\n"); + mutex_unlock(&s->ops_mutex); return -EAGAIN; /* try again, but later... */ } + mutex_unlock(&s->ops_mutex); ret = pccard_validate_cis(s, &no_chains); if (ret || !no_chains) { @@ -634,17 +635,7 @@ static int pcmcia_card_add(struct pcmcia_socket *s) } -static void pcmcia_delayed_add_device(struct work_struct *work) -{ - struct pcmcia_socket *s = - container_of(work, struct pcmcia_socket, device_add); - dev_dbg(&s->dev, "adding additional device to %d\n", s->sock); - pcmcia_device_add(s, s->pcmcia_state.mfc_pfc); - s->pcmcia_state.device_add_pending = 0; - s->pcmcia_state.mfc_pfc = 0; -} - -static int pcmcia_requery(struct device *dev, void * _data) +static int pcmcia_requery_callback(struct device *dev, void * _data) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); if (!p_dev->dev.driver) { @@ -655,45 +646,67 @@ static int pcmcia_requery(struct device *dev, void * _data) return 0; } -static void pcmcia_bus_rescan(struct pcmcia_socket *skt, int new_cis) -{ - int no_devices = 0; - int ret = 0; - unsigned long flags; - /* must be called with skt_mutex held */ - dev_dbg(&skt->dev, "re-scanning socket %d\n", skt->sock); +static void pcmcia_requery(struct pcmcia_socket *s) +{ + int present, has_pfc; - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); - if (list_empty(&skt->devices_list)) - no_devices = 1; - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); + present = s->pcmcia_state.present; + mutex_unlock(&s->ops_mutex); - /* If this is because of a CIS override, start over */ - if (new_cis && !no_devices) - pcmcia_card_remove(skt, NULL); + if (!present) + return; - /* if no devices were added for this socket yet because of - * missing resource information or other trouble, we need to - * do this now. */ - if (no_devices || new_cis) { - ret = pcmcia_card_add(skt); - if (ret) - return; + if (s->functions == 0) { + pcmcia_card_add(s); + return; } /* some device information might have changed because of a CIS * update or because we can finally read it correctly... so * determine it again, overwriting old values if necessary. */ - bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery); + bus_for_each_dev(&pcmcia_bus_type, NULL, NULL, pcmcia_requery_callback); + + /* if the CIS changed, we need to check whether the number of + * functions changed. */ + if (s->fake_cis) { + int old_funcs, new_funcs; + cistpl_longlink_mfc_t mfc; + + /* does this cis override add or remove functions? */ + old_funcs = s->functions; + + if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, + &mfc)) + new_funcs = mfc.nfn; + else + new_funcs = 1; + if (old_funcs > new_funcs) { + pcmcia_card_remove(s, NULL); + pcmcia_card_add(s); + } else if (new_funcs > old_funcs) { + s->functions = new_funcs; + pcmcia_device_add(s, 1); + } + } + + /* If the PCMCIA device consists of two pseudo devices, + * call pcmcia_device_add() -- which will fail if both + * devices are already registered. */ + mutex_lock(&s->ops_mutex); + has_pfc = s->pcmcia_state.has_pfc; + mutex_unlock(&s->ops_mutex); + if (has_pfc) + pcmcia_device_add(s, 0); /* we re-scan all devices, not just the ones connected to this * socket. This does not matter, though. */ - ret = bus_rescan_devices(&pcmcia_bus_type); - if (ret) - printk(KERN_INFO "pcmcia: bus_rescan_devices failed\n"); + if (bus_rescan_devices(&pcmcia_bus_type)) + dev_warn(&s->dev, "rescanning the bus failed\n"); } + #ifdef CONFIG_PCMCIA_LOAD_CIS /** @@ -710,9 +723,6 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) struct pcmcia_socket *s = dev->socket; const struct firmware *fw; int ret = -ENOMEM; - int no_funcs; - int old_funcs; - cistpl_longlink_mfc_t mfc; if (!filename) return -EINVAL; @@ -739,19 +749,8 @@ static int pcmcia_load_firmware(struct pcmcia_device *dev, char * filename) /* update information */ pcmcia_device_query(dev); - /* does this cis override add or remove functions? */ - old_funcs = s->functions; - - if (!pccard_read_tuple(s, BIND_FN_ALL, CISTPL_LONGLINK_MFC, &mfc)) - no_funcs = mfc.nfn; - else - no_funcs = 1; - s->functions = no_funcs; - - if (old_funcs > no_funcs) - pcmcia_card_remove(s, dev); - else if (no_funcs > old_funcs) - pcmcia_add_device_later(s, 1); + /* requery (as number of functions might have changed) */ + pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); } release: release_firmware(fw); @@ -818,9 +817,14 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev, if (did->match_flags & PCMCIA_DEV_ID_MATCH_DEVICE_NO) { if (dev->device_no != did->device_no) return 0; + mutex_lock(&dev->socket->ops_mutex); + dev->socket->pcmcia_state.has_pfc = 1; + mutex_unlock(&dev->socket->ops_mutex); } if (did->match_flags & PCMCIA_DEV_ID_MATCH_FUNC_ID) { + int ret; + if ((!dev->has_func_id) || (dev->func_id != did->func_id)) return 0; @@ -835,10 +839,15 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev, * after it has re-checked that there is no possible module * with a prod_id/manf_id/card_id match. */ - dev_dbg(&dev->dev, - "skipping FUNC_ID match until userspace interaction\n"); - if (!dev->allow_func_id_match) + mutex_lock(&dev->socket->ops_mutex); + ret = dev->allow_func_id_match; + mutex_unlock(&dev->socket->ops_mutex); + + if (!ret) { + dev_dbg(&dev->dev, + "skipping FUNC_ID match until userspace ACK\n"); return 0; + } } if (did->match_flags & PCMCIA_DEV_ID_MATCH_FAKE_CIS) { @@ -859,8 +868,6 @@ static inline int pcmcia_devmatch(struct pcmcia_device *dev, return 0; } - dev_set_drvdata(&dev->dev, did); - return 1; } @@ -873,16 +880,16 @@ static int pcmcia_bus_match(struct device *dev, struct device_driver *drv) struct pcmcia_dynid *dynid; /* match dynamic devices first */ - spin_lock(&p_drv->dynids.lock); + mutex_lock(&p_drv->dynids.lock); list_for_each_entry(dynid, &p_drv->dynids.list, node) { dev_dbg(dev, "trying to match to %s\n", drv->name); if (pcmcia_devmatch(p_dev, &dynid->id)) { dev_dbg(dev, "matched to %s\n", drv->name); - spin_unlock(&p_drv->dynids.lock); + mutex_unlock(&p_drv->dynids.lock); return 1; } } - spin_unlock(&p_drv->dynids.lock); + mutex_unlock(&p_drv->dynids.lock); #ifdef CONFIG_PCMCIA_IOCTL /* matching by cardmgr */ @@ -970,13 +977,14 @@ static int runtime_suspend(struct device *dev) return rc; } -static void runtime_resume(struct device *dev) +static int runtime_resume(struct device *dev) { int rc; down(&dev->sem); rc = pcmcia_dev_resume(dev); up(&dev->sem); + return rc; } /************************ per-device sysfs output ***************************/ @@ -1027,7 +1035,7 @@ static ssize_t pcmcia_store_pm_state(struct device *dev, struct device_attribute if ((!p_dev->suspended) && !strncmp(buf, "off", 3)) ret = runtime_suspend(dev); else if (p_dev->suspended && !strncmp(buf, "on", 2)) - runtime_resume(dev); + ret = runtime_resume(dev); return ret ? ret : count; } @@ -1059,19 +1067,14 @@ static ssize_t pcmcia_store_allow_func_id_match(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { struct pcmcia_device *p_dev = to_pcmcia_dev(dev); - int ret; if (!count) return -EINVAL; - mutex_lock(&p_dev->socket->skt_mutex); + mutex_lock(&p_dev->socket->ops_mutex); p_dev->allow_func_id_match = 1; - mutex_unlock(&p_dev->socket->skt_mutex); - - ret = bus_rescan_devices(&pcmcia_bus_type); - if (ret) - printk(KERN_INFO "pcmcia: bus_rescan_devices failed after " - "allowing func_id matches\n"); + mutex_unlock(&p_dev->socket->ops_mutex); + pcmcia_parse_uevents(p_dev->socket, PCMCIA_UEVENT_REQUERY); return count; } @@ -1099,8 +1102,13 @@ static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) struct pcmcia_driver *p_drv = NULL; int ret = 0; - if (p_dev->suspended) + mutex_lock(&p_dev->socket->ops_mutex); + if (p_dev->suspended) { + mutex_unlock(&p_dev->socket->ops_mutex); return 0; + } + p_dev->suspended = 1; + mutex_unlock(&p_dev->socket->ops_mutex); dev_dbg(dev, "suspending\n"); @@ -1117,6 +1125,9 @@ static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) "pcmcia: device %s (driver %s) did " "not want to go to sleep (%d)\n", p_dev->devname, p_drv->drv.name, ret); + mutex_lock(&p_dev->socket->ops_mutex); + p_dev->suspended = 0; + mutex_unlock(&p_dev->socket->ops_mutex); goto out; } } @@ -1127,8 +1138,6 @@ static int pcmcia_dev_suspend(struct device *dev, pm_message_t state) } out: - if (!ret) - p_dev->suspended = 1; return ret; } @@ -1139,8 +1148,13 @@ static int pcmcia_dev_resume(struct device *dev) struct pcmcia_driver *p_drv = NULL; int ret = 0; - if (!p_dev->suspended) + mutex_lock(&p_dev->socket->ops_mutex); + if (!p_dev->suspended) { + mutex_unlock(&p_dev->socket->ops_mutex); return 0; + } + p_dev->suspended = 0; + mutex_unlock(&p_dev->socket->ops_mutex); dev_dbg(dev, "resuming\n"); @@ -1161,8 +1175,6 @@ static int pcmcia_dev_resume(struct device *dev) ret = p_drv->resume(p_dev); out: - if (!ret) - p_dev->suspended = 0; return ret; } @@ -1237,13 +1249,22 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) switch (event) { case CS_EVENT_CARD_REMOVAL: + mutex_lock(&s->ops_mutex); s->pcmcia_state.present = 0; + mutex_unlock(&s->ops_mutex); pcmcia_card_remove(skt, NULL); handle_event(skt, event); + mutex_lock(&s->ops_mutex); + destroy_cis_cache(s); + mutex_unlock(&s->ops_mutex); break; case CS_EVENT_CARD_INSERTION: + mutex_lock(&s->ops_mutex); + s->pcmcia_state.has_pfc = 0; s->pcmcia_state.present = 1; + destroy_cis_cache(s); /* to be on the safe side... */ + mutex_unlock(&s->ops_mutex); pcmcia_card_add(skt); handle_event(skt, event); break; @@ -1251,8 +1272,24 @@ static int ds_event(struct pcmcia_socket *skt, event_t event, int priority) case CS_EVENT_EJECTION_REQUEST: break; - case CS_EVENT_PM_SUSPEND: case CS_EVENT_PM_RESUME: + if (verify_cis_cache(skt) != 0) { + dev_dbg(&skt->dev, "cis mismatch - different card\n"); + /* first, remove the card */ + ds_event(skt, CS_EVENT_CARD_REMOVAL, CS_EVENT_PRI_HIGH); + mutex_lock(&s->ops_mutex); + destroy_cis_cache(skt); + kfree(skt->fake_cis); + skt->fake_cis = NULL; + mutex_unlock(&s->ops_mutex); + /* now, add the new card */ + ds_event(skt, CS_EVENT_CARD_INSERTION, + CS_EVENT_PRI_LOW); + } + handle_event(skt, event); + break; + + case CS_EVENT_PM_SUSPEND: case CS_EVENT_RESET_PHYSICAL: case CS_EVENT_CARD_RESET: default: @@ -1275,9 +1312,13 @@ struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) if (!p_dev) return NULL; + mutex_lock(&p_dev->socket->ops_mutex); if (!p_dev->socket->pcmcia_state.present) goto out; + if (p_dev->socket->pcmcia_state.dead) + goto out; + if (p_dev->_removed) goto out; @@ -1286,6 +1327,7 @@ struct pcmcia_device *pcmcia_dev_present(struct pcmcia_device *_p_dev) ret = p_dev; out: + mutex_unlock(&p_dev->socket->ops_mutex); pcmcia_put_dev(p_dev); return ret; } @@ -1295,7 +1337,8 @@ EXPORT_SYMBOL(pcmcia_dev_present); static struct pcmcia_callback pcmcia_bus_callback = { .owner = THIS_MODULE, .event = ds_event, - .requery = pcmcia_bus_rescan, + .requery = pcmcia_requery, + .validate = pccard_validate_cis, .suspend = pcmcia_bus_suspend, .resume = pcmcia_bus_resume, }; @@ -1313,17 +1356,17 @@ static int __devinit pcmcia_bus_add_socket(struct device *dev, return -ENODEV; } - /* - * Ugly. But we want to wait for the socket threads to have started up. - * We really should let the drivers themselves drive some of this.. - */ - msleep(250); + ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); + if (ret) { + dev_printk(KERN_ERR, dev, "PCMCIA registration failed\n"); + pcmcia_put_socket(socket); + return ret; + } #ifdef CONFIG_PCMCIA_IOCTL init_waitqueue_head(&socket->queue); #endif INIT_LIST_HEAD(&socket->devices_list); - INIT_WORK(&socket->device_add, pcmcia_delayed_add_device); memset(&socket->pcmcia_state, 0, sizeof(u8)); socket->device_count = 0; @@ -1345,14 +1388,20 @@ static void pcmcia_bus_remove_socket(struct device *dev, if (!socket) return; + mutex_lock(&socket->ops_mutex); socket->pcmcia_state.dead = 1; + mutex_unlock(&socket->ops_mutex); + pccard_register_pcmcia(socket, NULL); /* unregister any unbound devices */ mutex_lock(&socket->skt_mutex); pcmcia_card_remove(socket, NULL); + release_cis_mem(socket); mutex_unlock(&socket->skt_mutex); + sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); + pcmcia_put_socket(socket); return; @@ -1383,8 +1432,6 @@ static int __init init_pcmcia_bus(void) { int ret; - spin_lock_init(&pcmcia_dev_list_lock); - ret = bus_register(&pcmcia_bus_type); if (ret < 0) { printk(KERN_WARNING "pcmcia: bus_register error: %d\n", ret); diff --git a/drivers/pcmcia/electra_cf.c b/drivers/pcmcia/electra_cf.c index d187ba4..89cfddc 100644 --- a/drivers/pcmcia/electra_cf.c +++ b/drivers/pcmcia/electra_cf.c @@ -347,7 +347,7 @@ static int __devexit electra_cf_remove(struct of_device *ofdev) return 0; } -static struct of_device_id electra_cf_match[] = { +static const struct of_device_id electra_cf_match[] = { { .compatible = "electra-cf", }, diff --git a/drivers/pcmcia/i82365.h b/drivers/pcmcia/i82365.h index 622860c..849ef1b 100644 --- a/drivers/pcmcia/i82365.h +++ b/drivers/pcmcia/i82365.h @@ -77,8 +77,8 @@ #define I365_VPP2_5V 0x04 /* Vpp2 = 5.0v */ #define I365_VPP2_12V 0x08 /* Vpp2 = 12.0v */ #define I365_VPP1_MASK 0x03 /* Mask for turning off Vpp1 */ -#define I365_VPP1_5V 0x01 /* Vpp2 = 5.0v */ -#define I365_VPP1_12V 0x02 /* Vpp2 = 12.0v */ +#define I365_VPP1_5V 0x01 /* Vpp1 = 5.0v */ +#define I365_VPP1_12V 0x02 /* Vpp1 = 12.0v */ /* Flags for I365_INTCTL */ #define I365_RING_ENA 0x80 diff --git a/drivers/pcmcia/m32r_cfc.c b/drivers/pcmcia/m32r_cfc.c index 26a621c..0ece2cd 100644 --- a/drivers/pcmcia/m32r_cfc.c +++ b/drivers/pcmcia/m32r_cfc.c @@ -764,7 +764,7 @@ static int __init init_m32r_pcc(void) for (i = 0 ; i < pcc_sockets ; i++) { socket[i].socket.dev.parent = &pcc_device.dev; socket[i].socket.ops = &pcc_operations; - socket[i].socket.resource_ops = &pccard_nonstatic_ops; + socket[i].socket.resource_ops = &pccard_static_ops; socket[i].socket.owner = THIS_MODULE; socket[i].number = i; ret = pcmcia_register_socket(&socket[i].socket); diff --git a/drivers/pcmcia/m8xx_pcmcia.c b/drivers/pcmcia/m8xx_pcmcia.c index 7f79c4e..61c2159 100644 --- a/drivers/pcmcia/m8xx_pcmcia.c +++ b/drivers/pcmcia/m8xx_pcmcia.c @@ -1233,7 +1233,7 @@ static int __init m8xx_probe(struct of_device *ofdev, socket[i].socket.io_offset = 0; socket[i].socket.pci_irq = pcmcia_schlvl; socket[i].socket.ops = &m8xx_services; - socket[i].socket.resource_ops = &pccard_nonstatic_ops; + socket[i].socket.resource_ops = &pccard_iodyn_ops; socket[i].socket.cb_dev = NULL; socket[i].socket.dev.parent = &ofdev->dev; socket[i].pcmcia = pcmcia; @@ -1303,7 +1303,7 @@ static int m8xx_resume(struct platform_device *pdev) #define m8xx_resume NULL #endif -static struct of_device_id m8xx_pcmcia_match[] = { +static const struct of_device_id m8xx_pcmcia_match[] = { { .type = "pcmcia", .compatible = "fsl,pq-pcmcia", diff --git a/drivers/pcmcia/o2micro.h b/drivers/pcmcia/o2micro.h index 624442f..e74beba 100644 --- a/drivers/pcmcia/o2micro.h +++ b/drivers/pcmcia/o2micro.h @@ -116,13 +116,12 @@ static int o2micro_override(struct yenta_socket *socket) * from Eric Still, 02Micro. */ u8 a, b; + bool use_speedup; if (PCI_FUNC(socket->dev->devfn) == 0) { a = config_readb(socket, O2_RESERVED1); b = config_readb(socket, O2_RESERVED2); - - dev_printk(KERN_INFO, &socket->dev->dev, - "O2: res at 0x94/0xD4: %02x/%02x\n", a, b); + dev_dbg(&socket->dev->dev, "O2: 0x94/0xD4: %02x/%02x\n", a, b); switch (socket->dev->device) { /* @@ -135,23 +134,37 @@ static int o2micro_override(struct yenta_socket *socket) case PCI_DEVICE_ID_O2_6812: case PCI_DEVICE_ID_O2_6832: case PCI_DEVICE_ID_O2_6836: - case PCI_DEVICE_ID_O2_6933: - dev_printk(KERN_INFO, &socket->dev->dev, - "Yenta O2: old bridge, disabling read " - "prefetch/write burst\n"); - config_writeb(socket, O2_RESERVED1, - a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); - config_writeb(socket, O2_RESERVED2, - b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); + case PCI_DEVICE_ID_O2_6933: + use_speedup = false; break; - default: - dev_printk(KERN_INFO , &socket->dev->dev, - "O2: enabling read prefetch/write burst\n"); + use_speedup = true; + break; + } + + /* the user may override our decision */ + if (strcasecmp(o2_speedup, "on") == 0) + use_speedup = true; + else if (strcasecmp(o2_speedup, "off") == 0) + use_speedup = false; + else if (strcasecmp(o2_speedup, "default") != 0) + dev_warn(&socket->dev->dev, + "O2: Unknown parameter, using 'default'"); + + if (use_speedup) { + dev_info(&socket->dev->dev, + "O2: enabling read prefetch/write burst\n"); + config_writeb(socket, O2_RESERVED1, + a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + config_writeb(socket, O2_RESERVED2, + b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + } else { + dev_info(&socket->dev->dev, + "O2: disabling read prefetch/write burst\n"); config_writeb(socket, O2_RESERVED1, - a | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + a & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); config_writeb(socket, O2_RESERVED2, - b | O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST); + b & ~(O2_RES_READ_PREFETCH | O2_RES_WRITE_BURST)); } } diff --git a/drivers/pcmcia/omap_cf.c b/drivers/pcmcia/omap_cf.c index 663781d..3ef9915 100644 --- a/drivers/pcmcia/omap_cf.c +++ b/drivers/pcmcia/omap_cf.c @@ -71,8 +71,6 @@ struct omap_cf_socket { #define POLL_INTERVAL (2 * HZ) -#define SZ_2K (2 * SZ_1K) - /*--------------------------------------------------------------------------*/ static int omap_cf_ss_init(struct pcmcia_socket *s) diff --git a/drivers/pcmcia/pcmcia_ioctl.c b/drivers/pcmcia/pcmcia_ioctl.c index f73fd5b..13a7132 100644 --- a/drivers/pcmcia/pcmcia_ioctl.c +++ b/drivers/pcmcia/pcmcia_ioctl.c @@ -62,16 +62,15 @@ static struct pcmcia_device *get_pcmcia_device(struct pcmcia_socket *s, unsigned int function) { struct pcmcia_device *p_dev = NULL; - unsigned long flags; - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { if (p_dev->func == function) { - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); return pcmcia_get_dev(p_dev); } } - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); return NULL; } @@ -169,7 +168,6 @@ static int pcmcia_adjust_resource_info(adjust_t *adj) { struct pcmcia_socket *s; int ret = -ENOSYS; - unsigned long flags; down_read(&pcmcia_socket_list_rwsem); list_for_each_entry(s, &pcmcia_socket_list, socket_list) { @@ -182,14 +180,13 @@ static int pcmcia_adjust_resource_info(adjust_t *adj) /* you can't use the old interface if the new * one was used before */ - spin_lock_irqsave(&s->lock, flags); + mutex_lock(&s->ops_mutex); if ((s->resource_setup_new) && !(s->resource_setup_old)) { - spin_unlock_irqrestore(&s->lock, flags); + mutex_unlock(&s->ops_mutex); continue; } else if (!(s->resource_setup_old)) s->resource_setup_old = 1; - spin_unlock_irqrestore(&s->lock, flags); switch (adj->Resource) { case RES_MEMORY_RANGE: @@ -208,10 +205,9 @@ static int pcmcia_adjust_resource_info(adjust_t *adj) * last call to adjust_resource_info, we * always need to assume this is the latest * one... */ - spin_lock_irqsave(&s->lock, flags); s->resource_setup_done = 1; - spin_unlock_irqrestore(&s->lock, flags); } + mutex_unlock(&s->ops_mutex); } } up_read(&pcmcia_socket_list_rwsem); @@ -470,7 +466,6 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) struct pcmcia_driver *p_drv; struct pcmcia_device *p_dev; int ret = 0; - unsigned long flags; s = pcmcia_get_socket(s); if (!s) @@ -490,7 +485,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) goto err_put_driver; } - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { if (p_dev->func == bind_info->function) { if ((p_dev->dev.driver == &p_drv->drv)) { @@ -499,7 +494,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) * registered, and it was registered * by userspace before, we need to * return the "instance". */ - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); bind_info->instance = p_dev; ret = -EBUSY; goto err_put_module; @@ -507,7 +502,7 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) /* the correct driver managed to bind * itself magically to the correct * device. */ - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); p_dev->cardmgr = p_drv; ret = 0; goto err_put_module; @@ -516,12 +511,12 @@ static int bind_request(struct pcmcia_socket *s, bind_info_t *bind_info) /* there's already a device available where * no device has been bound to yet. So we don't * need to register a device! */ - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); goto rescan; } } } - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); p_dev = pcmcia_device_add(s, bind_info->function); if (!p_dev) { @@ -578,7 +573,6 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int dev_node_t *node; struct pcmcia_device *p_dev; struct pcmcia_driver *p_drv; - unsigned long flags; int ret = 0; #ifdef CONFIG_CARDBUS @@ -617,7 +611,7 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int } #endif - spin_lock_irqsave(&pcmcia_dev_list_lock, flags); + mutex_lock(&s->ops_mutex); list_for_each_entry(p_dev, &s->devices_list, socket_device_list) { if (p_dev->func == bind_info->function) { p_dev = pcmcia_get_dev(p_dev); @@ -626,11 +620,11 @@ static int get_device_info(struct pcmcia_socket *s, bind_info_t *bind_info, int goto found; } } - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); return -ENODEV; found: - spin_unlock_irqrestore(&pcmcia_dev_list_lock, flags); + mutex_unlock(&s->ops_mutex); p_drv = to_pcmcia_drv(p_dev->dev.driver); if (p_drv && !p_dev->_locked) { @@ -931,16 +925,16 @@ static int ds_ioctl(struct inode *inode, struct file *file, ret = pccard_validate_cis(s, &buf->cisinfo.Chains); break; case DS_SUSPEND_CARD: - ret = pcmcia_suspend_card(s); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); break; case DS_RESUME_CARD: - ret = pcmcia_resume_card(s); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); break; case DS_EJECT_CARD: - err = pcmcia_eject_card(s); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); break; case DS_INSERT_CARD: - err = pcmcia_insert_card(s); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); break; case DS_ACCESS_CONFIGURATION_REGISTER: if ((buf->conf_reg.Action == CS_WRITE) && !capable(CAP_SYS_ADMIN)) { diff --git a/drivers/pcmcia/pcmcia_resource.c b/drivers/pcmcia/pcmcia_resource.c index d5db956..b2df041 100644 --- a/drivers/pcmcia/pcmcia_resource.c +++ b/drivers/pcmcia/pcmcia_resource.c @@ -43,6 +43,39 @@ module_param(io_speed, int, 0444); static u8 pcmcia_used_irq[NR_IRQS]; #endif +static int pcmcia_adjust_io_region(struct resource *res, unsigned long start, + unsigned long end, struct pcmcia_socket *s) +{ + if (s->resource_ops->adjust_io_region) + return s->resource_ops->adjust_io_region(res, start, end, s); + return -ENOMEM; +} + +static struct resource *pcmcia_find_io_region(unsigned long base, int num, + unsigned long align, + struct pcmcia_socket *s) +{ + if (s->resource_ops->find_io) + return s->resource_ops->find_io(base, num, align, s); + return NULL; +} + +int pcmcia_validate_mem(struct pcmcia_socket *s) +{ + if (s->resource_ops->validate_mem) + return s->resource_ops->validate_mem(s); + /* if there is no callback, we can assume that everything is OK */ + return 0; +} + +struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, + int low, struct pcmcia_socket *s) +{ + if (s->resource_ops->find_mem) + return s->resource_ops->find_mem(base, num, align, low, s); + return NULL; +} + /** alloc_io_space * @@ -158,14 +191,18 @@ int pcmcia_access_configuration_register(struct pcmcia_device *p_dev, return -EINVAL; s = p_dev->socket; + + mutex_lock(&s->ops_mutex); c = p_dev->function_config; if (!(c->state & CONFIG_LOCKED)) { dev_dbg(&s->dev, "Configuration isnt't locked\n"); + mutex_unlock(&s->ops_mutex); return -EACCES; } addr = (c->ConfigBase + reg->Offset) >> 1; + mutex_unlock(&s->ops_mutex); switch (reg->Action) { case CS_READ: @@ -190,6 +227,7 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh, memreq_t *req) { struct pcmcia_socket *s = p_dev->socket; + int ret; wh--; if (wh >= MAX_WIN) @@ -198,12 +236,13 @@ int pcmcia_map_mem_page(struct pcmcia_device *p_dev, window_handle_t wh, dev_dbg(&s->dev, "failure: requested page is zero\n"); return -EINVAL; } + mutex_lock(&s->ops_mutex); s->win[wh].card_start = req->CardOffset; - if (s->ops->set_mem_map(s, &s->win[wh]) != 0) { - dev_dbg(&s->dev, "failed to set_mem_map\n"); - return -EIO; - } - return 0; + ret = s->ops->set_mem_map(s, &s->win[wh]); + if (ret) + dev_warn(&s->dev, "failed to set_mem_map\n"); + mutex_unlock(&s->ops_mutex); + return ret; } /* pcmcia_map_mem_page */ EXPORT_SYMBOL(pcmcia_map_mem_page); @@ -219,14 +258,18 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev, config_t *c; s = p_dev->socket; + + mutex_lock(&s->ops_mutex); c = p_dev->function_config; if (!(s->state & SOCKET_PRESENT)) { dev_dbg(&s->dev, "No card present\n"); + mutex_unlock(&s->ops_mutex); return -ENODEV; } if (!(c->state & CONFIG_LOCKED)) { dev_dbg(&s->dev, "Configuration isnt't locked\n"); + mutex_unlock(&s->ops_mutex); return -EACCES; } @@ -251,10 +294,12 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev, (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { if (mod->Vpp1 != mod->Vpp2) { dev_dbg(&s->dev, "Vpp1 and Vpp2 must be the same\n"); + mutex_unlock(&s->ops_mutex); return -EINVAL; } s->socket.Vpp = mod->Vpp1; if (s->ops->set_socket(s, &s->socket)) { + mutex_unlock(&s->ops_mutex); dev_printk(KERN_WARNING, &s->dev, "Unable to set VPP\n"); return -EIO; @@ -262,6 +307,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev, } else if ((mod->Attributes & CONF_VPP1_CHANGE_VALID) || (mod->Attributes & CONF_VPP2_CHANGE_VALID)) { dev_dbg(&s->dev, "changing Vcc is not allowed at this time\n"); + mutex_unlock(&s->ops_mutex); return -EINVAL; } @@ -286,6 +332,7 @@ int pcmcia_modify_configuration(struct pcmcia_device *p_dev, s->ops->set_io_map(s, &io_on); } } + mutex_unlock(&s->ops_mutex); return 0; } /* modify_configuration */ @@ -296,9 +343,11 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev) { pccard_io_map io = { 0, 0, 0, 0, 1 }; struct pcmcia_socket *s = p_dev->socket; - config_t *c = p_dev->function_config; + config_t *c; int i; + mutex_lock(&s->ops_mutex); + c = p_dev->function_config; if (p_dev->_locked) { p_dev->_locked = 0; if (--(s->lock_count) == 0) { @@ -321,6 +370,7 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev) s->ops->set_io_map(s, &io); } } + mutex_unlock(&s->ops_mutex); return 0; } /* pcmcia_release_configuration */ @@ -337,10 +387,14 @@ int pcmcia_release_configuration(struct pcmcia_device *p_dev) static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) { struct pcmcia_socket *s = p_dev->socket; - config_t *c = p_dev->function_config; + int ret = -EINVAL; + config_t *c; + + mutex_lock(&s->ops_mutex); + c = p_dev->function_config; if (!p_dev->_io) - return -EINVAL; + goto out; p_dev->_io = 0; @@ -348,7 +402,7 @@ static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) (c->io.NumPorts1 != req->NumPorts1) || (c->io.BasePort2 != req->BasePort2) || (c->io.NumPorts2 != req->NumPorts2)) - return -EINVAL; + goto out; c->state &= ~CONFIG_IO_REQ; @@ -356,28 +410,38 @@ static int pcmcia_release_io(struct pcmcia_device *p_dev, io_req_t *req) if (req->NumPorts2) release_io_space(s, req->BasePort2, req->NumPorts2); - return 0; +out: + mutex_unlock(&s->ops_mutex); + + return ret; } /* pcmcia_release_io */ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) { struct pcmcia_socket *s = p_dev->socket; - config_t *c = p_dev->function_config; + config_t *c; + int ret = -EINVAL; + + mutex_lock(&s->ops_mutex); + + c = p_dev->function_config; if (!p_dev->_irq) - return -EINVAL; + goto out; + p_dev->_irq = 0; if (c->state & CONFIG_LOCKED) - return -EACCES; + goto out; + if (c->irq.Attributes != req->Attributes) { dev_dbg(&s->dev, "IRQ attributes must match assigned ones\n"); - return -EINVAL; + goto out; } if (s->irq.AssignedIRQ != req->AssignedIRQ) { dev_dbg(&s->dev, "IRQ must match assigned one\n"); - return -EINVAL; + goto out; } if (--s->irq.Config == 0) { c->state &= ~CONFIG_IRQ_REQ; @@ -390,8 +454,12 @@ static int pcmcia_release_irq(struct pcmcia_device *p_dev, irq_req_t *req) #ifdef CONFIG_PCMCIA_PROBE pcmcia_used_irq[req->AssignedIRQ]--; #endif + ret = 0; - return 0; +out: + mutex_unlock(&s->ops_mutex); + + return ret; } /* pcmcia_release_irq */ @@ -404,10 +472,12 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) if (wh >= MAX_WIN) return -EINVAL; + mutex_lock(&s->ops_mutex); win = &s->win[wh]; if (!(p_dev->_win & CLIENT_WIN_REQ(wh))) { dev_dbg(&s->dev, "not releasing unknown window\n"); + mutex_unlock(&s->ops_mutex); return -EINVAL; } @@ -423,6 +493,7 @@ int pcmcia_release_window(struct pcmcia_device *p_dev, window_handle_t wh) win->res = NULL; } p_dev->_win &= ~CLIENT_WIN_REQ(wh); + mutex_unlock(&s->ops_mutex); return 0; } /* pcmcia_release_window */ @@ -445,8 +516,11 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, dev_dbg(&s->dev, "IntType may not be INT_CARDBUS\n"); return -EINVAL; } + + mutex_lock(&s->ops_mutex); c = p_dev->function_config; if (c->state & CONFIG_LOCKED) { + mutex_unlock(&s->ops_mutex); dev_dbg(&s->dev, "Configuration is locked\n"); return -EACCES; } @@ -454,6 +528,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, /* Do power control. We don't allow changes in Vcc. */ s->socket.Vpp = req->Vpp; if (s->ops->set_socket(s, &s->socket)) { + mutex_unlock(&s->ops_mutex); dev_printk(KERN_WARNING, &s->dev, "Unable to set socket state\n"); return -EINVAL; @@ -476,6 +551,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, s->socket.io_irq = 0; s->ops->set_socket(s, &s->socket); s->lock_count++; + mutex_unlock(&s->ops_mutex); /* Set up CIS configuration registers */ base = c->ConfigBase = req->ConfigBase; @@ -524,6 +600,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, /* Configure I/O windows */ if (c->state & CONFIG_IO_REQ) { + mutex_lock(&s->ops_mutex); iomap.speed = io_speed; for (i = 0; i < MAX_IO_WIN; i++) if (s->io[i].res) { @@ -542,6 +619,7 @@ int pcmcia_request_configuration(struct pcmcia_device *p_dev, s->ops->set_io_map(s, &iomap); s->io[i].Config++; } + mutex_unlock(&s->ops_mutex); } c->state |= CONFIG_LOCKED; @@ -560,54 +638,65 @@ int pcmcia_request_io(struct pcmcia_device *p_dev, io_req_t *req) { struct pcmcia_socket *s = p_dev->socket; config_t *c; + int ret = -EINVAL; + + mutex_lock(&s->ops_mutex); if (!(s->state & SOCKET_PRESENT)) { dev_dbg(&s->dev, "No card present\n"); - return -ENODEV; + goto out; } if (!req) - return -EINVAL; + goto out; + c = p_dev->function_config; if (c->state & CONFIG_LOCKED) { dev_dbg(&s->dev, "Configuration is locked\n"); - return -EACCES; + goto out; } if (c->state & CONFIG_IO_REQ) { dev_dbg(&s->dev, "IO already configured\n"); - return -EBUSY; + goto out; } if (req->Attributes1 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS)) { dev_dbg(&s->dev, "bad attribute setting for IO region 1\n"); - return -EINVAL; + goto out; } if ((req->NumPorts2 > 0) && (req->Attributes2 & (IO_SHARED | IO_FORCE_ALIAS_ACCESS))) { dev_dbg(&s->dev, "bad attribute setting for IO region 2\n"); - return -EINVAL; + goto out; } dev_dbg(&s->dev, "trying to allocate resource 1\n"); - if (alloc_io_space(s, req->Attributes1, &req->BasePort1, - req->NumPorts1, req->IOAddrLines)) { + ret = alloc_io_space(s, req->Attributes1, &req->BasePort1, + req->NumPorts1, req->IOAddrLines); + if (ret) { dev_dbg(&s->dev, "allocation of resource 1 failed\n"); - return -EBUSY; + goto out; } if (req->NumPorts2) { dev_dbg(&s->dev, "trying to allocate resource 2\n"); - if (alloc_io_space(s, req->Attributes2, &req->BasePort2, - req->NumPorts2, req->IOAddrLines)) { + ret = alloc_io_space(s, req->Attributes2, &req->BasePort2, + req->NumPorts2, req->IOAddrLines); + if (ret) { dev_dbg(&s->dev, "allocation of resource 2 failed\n"); release_io_space(s, req->BasePort1, req->NumPorts1); - return -EBUSY; + goto out; } } c->io = *req; c->state |= CONFIG_IO_REQ; p_dev->_io = 1; - return 0; + dev_dbg(&s->dev, "allocating resources succeeded: %d\n", ret); + +out: + mutex_unlock(&s->ops_mutex); + + return ret; } /* pcmcia_request_io */ EXPORT_SYMBOL(pcmcia_request_io); @@ -636,18 +725,20 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) int ret = -EINVAL, irq = 0; int type; + mutex_lock(&s->ops_mutex); + if (!(s->state & SOCKET_PRESENT)) { dev_dbg(&s->dev, "No card present\n"); - return -ENODEV; + goto out; } c = p_dev->function_config; if (c->state & CONFIG_LOCKED) { dev_dbg(&s->dev, "Configuration is locked\n"); - return -EACCES; + goto out; } if (c->state & CONFIG_IRQ_REQ) { dev_dbg(&s->dev, "IRQ already configured\n"); - return -EBUSY; + goto out; } /* Decide what type of interrupt we are registering */ @@ -708,7 +799,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) if (ret && !s->irq.AssignedIRQ) { if (!s->pci_irq) { dev_printk(KERN_INFO, &s->dev, "no IRQ found\n"); - return ret; + goto out; } type = IRQF_SHARED; irq = s->pci_irq; @@ -720,7 +811,7 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) if (ret) { dev_printk(KERN_INFO, &s->dev, "request_irq() failed\n"); - return ret; + goto out; } } @@ -743,7 +834,10 @@ int pcmcia_request_irq(struct pcmcia_device *p_dev, irq_req_t *req) pcmcia_used_irq[irq]++; #endif - return 0; + ret = 0; +out: + mutex_unlock(&s->ops_mutex); + return ret; } /* pcmcia_request_irq */ EXPORT_SYMBOL(pcmcia_request_irq); @@ -796,6 +890,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha return -EINVAL; } + mutex_lock(&s->ops_mutex); win = &s->win[w]; if (!(s->features & SS_CAP_STATIC_MAP)) { @@ -803,6 +898,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha (req->Attributes & WIN_MAP_BELOW_1MB), s); if (!win->res) { dev_dbg(&s->dev, "allocating mem region failed\n"); + mutex_unlock(&s->ops_mutex); return -EINVAL; } } @@ -821,8 +917,10 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha if (req->Attributes & WIN_USE_WAIT) win->flags |= MAP_USE_WAIT; win->card_start = 0; + if (s->ops->set_mem_map(s, win) != 0) { dev_dbg(&s->dev, "failed to set memory mapping\n"); + mutex_unlock(&s->ops_mutex); return -EIO; } s->state |= SOCKET_WIN_REQ(w); @@ -833,6 +931,7 @@ int pcmcia_request_window(struct pcmcia_device *p_dev, win_req_t *req, window_ha else req->Base = win->res->start; + mutex_unlock(&s->ops_mutex); *wh = w + 1; return 0; diff --git a/drivers/pcmcia/rsrc_mgr.c b/drivers/pcmcia/rsrc_mgr.c index 52db172..e6f7d41 100644 --- a/drivers/pcmcia/rsrc_mgr.c +++ b/drivers/pcmcia/rsrc_mgr.c @@ -21,60 +21,12 @@ #include <pcmcia/cistpl.h> #include "cs_internal.h" - -int pcmcia_validate_mem(struct pcmcia_socket *s) -{ - if (s->resource_ops->validate_mem) - return s->resource_ops->validate_mem(s); - /* if there is no callback, we can assume that everything is OK */ - return 0; -} -EXPORT_SYMBOL(pcmcia_validate_mem); - -int pcmcia_adjust_io_region(struct resource *res, unsigned long r_start, - unsigned long r_end, struct pcmcia_socket *s) -{ - if (s->resource_ops->adjust_io_region) - return s->resource_ops->adjust_io_region(res, r_start, r_end, s); - return -ENOMEM; -} -EXPORT_SYMBOL(pcmcia_adjust_io_region); - -struct resource *pcmcia_find_io_region(unsigned long base, int num, - unsigned long align, struct pcmcia_socket *s) -{ - if (s->resource_ops->find_io) - return s->resource_ops->find_io(base, num, align, s); - return NULL; -} -EXPORT_SYMBOL(pcmcia_find_io_region); - -struct resource *pcmcia_find_mem_region(u_long base, u_long num, u_long align, - int low, struct pcmcia_socket *s) -{ - if (s->resource_ops->find_mem) - return s->resource_ops->find_mem(base, num, align, low, s); - return NULL; -} -EXPORT_SYMBOL(pcmcia_find_mem_region); - -void release_resource_db(struct pcmcia_socket *s) -{ - if (s->resource_ops->exit) - s->resource_ops->exit(s); -} - - static int static_init(struct pcmcia_socket *s) { - unsigned long flags; - /* the good thing about SS_CAP_STATIC_MAP sockets is * that they don't need a resource database */ - spin_lock_irqsave(&s->lock, flags); s->resource_setup_done = 1; - spin_unlock_irqrestore(&s->lock, flags); return 0; } @@ -114,22 +66,21 @@ struct pcmcia_align_data { unsigned long offset; }; -static void pcmcia_align(void *align_data, struct resource *res, - unsigned long size, unsigned long align) +static resource_size_t pcmcia_align(void *align_data, + const struct resource *res, + resource_size_t size, resource_size_t align) { struct pcmcia_align_data *data = align_data; - unsigned long start; + resource_size_t start; start = (res->start & ~data->mask) + data->offset; if (start < res->start) start += data->mask + 1; - res->start = start; #ifdef CONFIG_X86 if (res->flags & IORESOURCE_IO) { if (start & 0x300) { start = (start + 0x3ff) & ~0x3ff; - res->start = start; } } #endif @@ -137,9 +88,11 @@ static void pcmcia_align(void *align_data, struct resource *res, #ifdef CONFIG_M68K if (res->flags & IORESOURCE_IO) { if ((res->start + size - 1) >= 1024) - res->start = res->end; + start = res->end; } #endif + + return start; } diff --git a/drivers/pcmcia/rsrc_nonstatic.c b/drivers/pcmcia/rsrc_nonstatic.c index 9b0dc43..4663b3f 100644 --- a/drivers/pcmcia/rsrc_nonstatic.c +++ b/drivers/pcmcia/rsrc_nonstatic.c @@ -55,11 +55,10 @@ struct resource_map { struct socket_data { struct resource_map mem_db; + struct resource_map mem_db_valid; struct resource_map io_db; - unsigned int rsrc_mem_probe; }; -static DEFINE_MUTEX(rsrc_mutex); #define MEM_PROBE_LOW (1 << 0) #define MEM_PROBE_HIGH (1 << 1) @@ -125,8 +124,10 @@ static int add_interval(struct resource_map *map, u_long base, u_long num) struct resource_map *p, *q; for (p = map; ; p = p->next) { - if ((p != map) && (p->base+p->num-1 >= base)) - return -1; + if ((p != map) && (p->base+p->num >= base)) { + p->num = max(num + base - p->base, p->num); + return 0; + } if ((p->next == map) || (p->next->base > base+num-1)) break; } @@ -264,36 +265,44 @@ static void do_io_probe(struct pcmcia_socket *s, unsigned int base, } #endif -/*====================================================================== - - This is tricky... when we set up CIS memory, we try to validate - the memory window space allocations. - -======================================================================*/ +/*======================================================================*/ -/* Validation function for cards with a valid CIS */ +/** + * readable() - iomem validation function for cards with a valid CIS + */ static int readable(struct pcmcia_socket *s, struct resource *res, unsigned int *count) { - int ret = -1; + int ret = -EINVAL; + + if (s->fake_cis) { + dev_dbg(&s->dev, "fake CIS is being used: can't validate mem\n"); + return 0; + } s->cis_mem.res = res; s->cis_virt = ioremap(res->start, s->map_size); if (s->cis_virt) { - ret = pccard_validate_cis(s, count); - /* invalidate mapping and CIS cache */ + mutex_unlock(&s->ops_mutex); + /* as we're only called from pcmcia.c, we're safe */ + if (s->callback->validate) + ret = s->callback->validate(s, count); + /* invalidate mapping */ + mutex_lock(&s->ops_mutex); iounmap(s->cis_virt); s->cis_virt = NULL; - destroy_cis_cache(s); } s->cis_mem.res = NULL; - if ((ret != 0) || (*count == 0)) - return 0; - return 1; + if ((ret) || (*count == 0)) + return -EINVAL; + return 0; } -/* Validation function for simple memory cards */ -static int checksum(struct pcmcia_socket *s, struct resource *res) +/** + * checksum() - iomem validation function for simple memory cards + */ +static int checksum(struct pcmcia_socket *s, struct resource *res, + unsigned int *value) { pccard_mem_map map; int i, a = 0, b = -1, d; @@ -321,61 +330,90 @@ static int checksum(struct pcmcia_socket *s, struct resource *res) iounmap(virt); } - return (b == -1) ? -1 : (a>>1); + if (b == -1) + return -EINVAL; + + *value = a; + + return 0; } -static int -cis_readable(struct pcmcia_socket *s, unsigned long base, unsigned long size) +/** + * do_validate_mem() - low level validate a memory region for PCMCIA use + * @s: PCMCIA socket to validate + * @base: start address of resource to check + * @size: size of resource to check + * @validate: validation function to use + * + * do_validate_mem() splits up the memory region which is to be checked + * into two parts. Both are passed to the @validate() function. If + * @validate() returns non-zero, or the value parameter to @validate() + * is zero, or the value parameter is different between both calls, + * the check fails, and -EINVAL is returned. Else, 0 is returned. + */ +static int do_validate_mem(struct pcmcia_socket *s, + unsigned long base, unsigned long size, + int validate (struct pcmcia_socket *s, + struct resource *res, + unsigned int *value)) { + struct socket_data *s_data = s->resource_data; struct resource *res1, *res2; - unsigned int info1, info2; - int ret = 0; + unsigned int info1 = 1, info2 = 1; + int ret = -EINVAL; res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); if (res1 && res2) { - ret = readable(s, res1, &info1); - ret += readable(s, res2, &info2); + ret = 0; + if (validate) { + ret = validate(s, res1, &info1); + ret += validate(s, res2, &info2); + } } free_region(res2); free_region(res1); - return (ret == 2) && (info1 == info2); -} - -static int -checksum_match(struct pcmcia_socket *s, unsigned long base, unsigned long size) -{ - struct resource *res1, *res2; - int a = -1, b = -1; + dev_dbg(&s->dev, "cs: memory probe 0x%06lx-0x%06lx: %p %p %u %u %u", + base, base+size-1, res1, res2, ret, info1, info2); - res1 = claim_region(s, base, size/2, IORESOURCE_MEM, "PCMCIA memprobe"); - res2 = claim_region(s, base + size/2, size/2, IORESOURCE_MEM, - "PCMCIA memprobe"); + if ((ret) || (info1 != info2) || (info1 == 0)) + return -EINVAL; - if (res1 && res2) { - a = checksum(s, res1); - b = checksum(s, res2); + if (validate && !s->fake_cis) { + /* move it to the validated data set */ + add_interval(&s_data->mem_db_valid, base, size); + sub_interval(&s_data->mem_db, base, size); } - free_region(res2); - free_region(res1); - - return (a == b) && (a >= 0); + return 0; } -/*====================================================================== - - The memory probe. If the memory list includes a 64K-aligned block - below 1MB, we probe in 64K chunks, and as soon as we accumulate at - least mem_limit free space, we quit. -======================================================================*/ - -static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s) +/** + * do_mem_probe() - validate a memory region for PCMCIA use + * @s: PCMCIA socket to validate + * @base: start address of resource to check + * @num: size of resource to check + * @validate: validation function to use + * @fallback: validation function to use if validate fails + * + * do_mem_probe() checks a memory region for use by the PCMCIA subsystem. + * To do so, the area is split up into sensible parts, and then passed + * into the @validate() function. Only if @validate() and @fallback() fail, + * the area is marked as unavaibale for use by the PCMCIA subsystem. The + * function returns the size of the usable memory area. + */ +static int do_mem_probe(struct pcmcia_socket *s, u_long base, u_long num, + int validate (struct pcmcia_socket *s, + struct resource *res, + unsigned int *value), + int fallback (struct pcmcia_socket *s, + struct resource *res, + unsigned int *value)) { struct socket_data *s_data = s->resource_data; u_long i, j, bad, fail, step; @@ -393,15 +431,14 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s) for (i = j = base; i < base+num; i = j + step) { if (!fail) { for (j = i; j < base+num; j += step) { - if (cis_readable(s, j, step)) + if (!do_validate_mem(s, j, step, validate)) break; } fail = ((i == base) && (j == base+num)); } - if (fail) { - for (j = i; j < base+num; j += 2*step) - if (checksum_match(s, j, step) && - checksum_match(s, j + step, step)) + if ((fail) && (fallback)) { + for (j = i; j < base+num; j += step) + if (!do_validate_mem(s, j, step, fallback)) break; } if (i != j) { @@ -416,8 +453,14 @@ static int do_mem_probe(u_long base, u_long num, struct pcmcia_socket *s) return num - bad; } + #ifdef CONFIG_PCMCIA_PROBE +/** + * inv_probe() - top-to-bottom search for one usuable high memory area + * @s: PCMCIA socket to validate + * @m: resource_map to check + */ static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s) { struct socket_data *s_data = s->resource_data; @@ -432,9 +475,18 @@ static u_long inv_probe(struct resource_map *m, struct pcmcia_socket *s) } if (m->base < 0x100000) return 0; - return do_mem_probe(m->base, m->num, s); + return do_mem_probe(s, m->base, m->num, readable, checksum); } +/** + * validate_mem() - memory probe function + * @s: PCMCIA socket to validate + * @probe_mask: MEM_PROBE_LOW | MEM_PROBE_HIGH + * + * The memory probe. If the memory list includes a 64K-aligned block + * below 1MB, we probe in 64K chunks, and as soon as we accumulate at + * least mem_limit free space, we quit. Returns 0 on usuable ports. + */ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) { struct resource_map *m, mm; @@ -446,6 +498,8 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) if (probe_mask & MEM_PROBE_HIGH) { if (inv_probe(s_data->mem_db.next, s) > 0) return 0; + if (s_data->mem_db_valid.next != &s_data->mem_db_valid) + return 0; dev_printk(KERN_NOTICE, &s->dev, "cs: warning: no high memory space available!\n"); return -ENODEV; @@ -457,7 +511,8 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) if (mm.base >= 0x100000) continue; if ((mm.base | mm.num) & 0xffff) { - ok += do_mem_probe(mm.base, mm.num, s); + ok += do_mem_probe(s, mm.base, mm.num, readable, + checksum); continue; } /* Special probe for 64K-aligned block */ @@ -467,7 +522,8 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) if (ok >= mem_limit) sub_interval(&s_data->mem_db, b, 0x10000); else - ok += do_mem_probe(b, 0x10000, s); + ok += do_mem_probe(s, b, 0x10000, + readable, checksum); } } } @@ -480,6 +536,13 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) #else /* CONFIG_PCMCIA_PROBE */ +/** + * validate_mem() - memory probe function + * @s: PCMCIA socket to validate + * @probe_mask: ignored + * + * Returns 0 on usuable ports. + */ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) { struct resource_map *m, mm; @@ -488,7 +551,7 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) for (m = s_data->mem_db.next; m != &s_data->mem_db; m = mm.next) { mm = *m; - ok += do_mem_probe(mm.base, mm.num, s); + ok += do_mem_probe(s, mm.base, mm.num, readable, checksum); } if (ok > 0) return 0; @@ -498,31 +561,31 @@ static int validate_mem(struct pcmcia_socket *s, unsigned int probe_mask) #endif /* CONFIG_PCMCIA_PROBE */ -/* +/** + * pcmcia_nonstatic_validate_mem() - try to validate iomem for PCMCIA use + * @s: PCMCIA socket to validate + * + * This is tricky... when we set up CIS memory, we try to validate + * the memory window space allocations. + * * Locking note: Must be called with skt_mutex held! */ static int pcmcia_nonstatic_validate_mem(struct pcmcia_socket *s) { struct socket_data *s_data = s->resource_data; unsigned int probe_mask = MEM_PROBE_LOW; - int ret = 0; + int ret; - if (!probe_mem) + if (!probe_mem || !(s->state & SOCKET_PRESENT)) return 0; - mutex_lock(&rsrc_mutex); - if (s->features & SS_CAP_PAGE_REGS) probe_mask = MEM_PROBE_HIGH; - if (probe_mask & ~s_data->rsrc_mem_probe) { - if (s->state & SOCKET_PRESENT) - ret = validate_mem(s, probe_mask); - if (!ret) - s_data->rsrc_mem_probe |= probe_mask; - } + ret = validate_mem(s, probe_mask); - mutex_unlock(&rsrc_mutex); + if (s_data->mem_db_valid.next != &s_data->mem_db_valid) + return 0; return ret; } @@ -533,8 +596,8 @@ struct pcmcia_align_data { struct resource_map *map; }; -static void -pcmcia_common_align(void *align_data, struct resource *res, +static resource_size_t +pcmcia_common_align(void *align_data, const struct resource *res, resource_size_t size, resource_size_t align) { struct pcmcia_align_data *data = align_data; @@ -545,17 +608,18 @@ pcmcia_common_align(void *align_data, struct resource *res, start = (res->start & ~data->mask) + data->offset; if (start < res->start) start += data->mask + 1; - res->start = start; + return start; } -static void -pcmcia_align(void *align_data, struct resource *res, resource_size_t size, - resource_size_t align) +static resource_size_t +pcmcia_align(void *align_data, const struct resource *res, + resource_size_t size, resource_size_t align) { struct pcmcia_align_data *data = align_data; struct resource_map *m; + resource_size_t start; - pcmcia_common_align(data, res, size, align); + start = pcmcia_common_align(data, res, size, align); for (m = data->map->next; m != data->map; m = m->next) { unsigned long start = m->base; @@ -567,8 +631,7 @@ pcmcia_align(void *align_data, struct resource *res, resource_size_t size, * fit here. */ if (res->start < start) { - res->start = start; - pcmcia_common_align(data, res, size, align); + start = pcmcia_common_align(data, res, size, align); } /* @@ -586,7 +649,9 @@ pcmcia_align(void *align_data, struct resource *res, resource_size_t size, * If we failed to find something suitable, ensure we fail. */ if (m == data->map) - res->start = res->end; + start = res->end; + + return start; } /* @@ -600,7 +665,6 @@ static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_star struct socket_data *s_data = s->resource_data; int ret = -ENOMEM; - mutex_lock(&rsrc_mutex); for (m = s_data->io_db.next; m != &s_data->io_db; m = m->next) { unsigned long start = m->base; unsigned long end = m->base + m->num - 1; @@ -611,7 +675,6 @@ static int nonstatic_adjust_io_region(struct resource *res, unsigned long r_star ret = adjust_resource(res, r_start, r_end - r_start + 1); break; } - mutex_unlock(&rsrc_mutex); return ret; } @@ -645,7 +708,6 @@ static struct resource *nonstatic_find_io_region(unsigned long base, int num, data.offset = base & data.mask; data.map = &s_data->io_db; - mutex_lock(&rsrc_mutex); #ifdef CONFIG_PCI if (s->cb_dev) { ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, 1, @@ -654,7 +716,6 @@ static struct resource *nonstatic_find_io_region(unsigned long base, int num, #endif ret = allocate_resource(&ioport_resource, res, num, min, ~0UL, 1, pcmcia_align, &data); - mutex_unlock(&rsrc_mutex); if (ret != 0) { kfree(res); @@ -670,15 +731,15 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num, struct socket_data *s_data = s->resource_data; struct pcmcia_align_data data; unsigned long min, max; - int ret, i; + int ret, i, j; low = low || !(s->features & SS_CAP_PAGE_REGS); data.mask = align - 1; data.offset = base & data.mask; - data.map = &s_data->mem_db; for (i = 0; i < 2; i++) { + data.map = &s_data->mem_db_valid; if (low) { max = 0x100000UL; min = base < max ? base : 0; @@ -687,17 +748,23 @@ static struct resource *nonstatic_find_mem_region(u_long base, u_long num, min = 0x100000UL + base; } - mutex_lock(&rsrc_mutex); + for (j = 0; j < 2; j++) { #ifdef CONFIG_PCI - if (s->cb_dev) { - ret = pci_bus_alloc_resource(s->cb_dev->bus, res, num, - 1, min, 0, - pcmcia_align, &data); - } else + if (s->cb_dev) { + ret = pci_bus_alloc_resource(s->cb_dev->bus, + res, num, 1, min, 0, + pcmcia_align, &data); + } else #endif - ret = allocate_resource(&iomem_resource, res, num, min, - max, 1, pcmcia_align, &data); - mutex_unlock(&rsrc_mutex); + { + ret = allocate_resource(&iomem_resource, + res, num, min, max, 1, + pcmcia_align, &data); + } + if (ret == 0) + break; + data.map = &s_data->mem_db; + } if (ret == 0 || low) break; low = 1; @@ -720,25 +787,18 @@ static int adjust_memory(struct pcmcia_socket *s, unsigned int action, unsigned if (end < start) return -EINVAL; - mutex_lock(&rsrc_mutex); switch (action) { case ADD_MANAGED_RESOURCE: ret = add_interval(&data->mem_db, start, size); + if (!ret) + do_mem_probe(s, start, size, NULL, NULL); break; case REMOVE_MANAGED_RESOURCE: ret = sub_interval(&data->mem_db, start, size); - if (!ret) { - struct pcmcia_socket *socket; - down_read(&pcmcia_socket_list_rwsem); - list_for_each_entry(socket, &pcmcia_socket_list, socket_list) - release_cis_mem(socket); - up_read(&pcmcia_socket_list_rwsem); - } break; default: ret = -EINVAL; } - mutex_unlock(&rsrc_mutex); return ret; } @@ -756,7 +816,6 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long if (end > IO_SPACE_LIMIT) return -EINVAL; - mutex_lock(&rsrc_mutex); switch (action) { case ADD_MANAGED_RESOURCE: if (add_interval(&data->io_db, start, size) != 0) { @@ -775,7 +834,6 @@ static int adjust_io(struct pcmcia_socket *s, unsigned int action, unsigned long ret = -EINVAL; break; } - mutex_unlock(&rsrc_mutex); return ret; } @@ -801,8 +859,7 @@ static int nonstatic_autoadd_resources(struct pcmcia_socket *s) return -EINVAL; #endif - for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { - res = s->cb_dev->bus->resource[i]; + pci_bus_for_each_resource(s->cb_dev->bus, res, i) { if (!res) continue; @@ -859,6 +916,7 @@ static int nonstatic_init(struct pcmcia_socket *s) return -ENOMEM; data->mem_db.next = &data->mem_db; + data->mem_db_valid.next = &data->mem_db_valid; data->io_db.next = &data->io_db; s->resource_data = (void *) data; @@ -873,7 +931,10 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s) struct socket_data *data = s->resource_data; struct resource_map *p, *q; - mutex_lock(&rsrc_mutex); + for (p = data->mem_db_valid.next; p != &data->mem_db_valid; p = q) { + q = p->next; + kfree(p); + } for (p = data->mem_db.next; p != &data->mem_db; p = q) { q = p->next; kfree(p); @@ -882,7 +943,6 @@ static void nonstatic_release_resource_db(struct pcmcia_socket *s) q = p->next; kfree(p); } - mutex_unlock(&rsrc_mutex); } @@ -909,7 +969,7 @@ static ssize_t show_io_db(struct device *dev, struct resource_map *p; ssize_t ret = 0; - mutex_lock(&rsrc_mutex); + mutex_lock(&s->ops_mutex); data = s->resource_data; for (p = data->io_db.next; p != &data->io_db; p = p->next) { @@ -921,7 +981,7 @@ static ssize_t show_io_db(struct device *dev, ((unsigned long) p->base + p->num - 1)); } - mutex_unlock(&rsrc_mutex); + mutex_unlock(&s->ops_mutex); return ret; } @@ -949,9 +1009,11 @@ static ssize_t store_io_db(struct device *dev, if (end_addr < start_addr) return -EINVAL; + mutex_lock(&s->ops_mutex); ret = adjust_io(s, add, start_addr, end_addr); if (!ret) s->resource_setup_new = 1; + mutex_unlock(&s->ops_mutex); return ret ? ret : count; } @@ -965,9 +1027,19 @@ static ssize_t show_mem_db(struct device *dev, struct resource_map *p; ssize_t ret = 0; - mutex_lock(&rsrc_mutex); + mutex_lock(&s->ops_mutex); data = s->resource_data; + for (p = data->mem_db_valid.next; p != &data->mem_db_valid; + p = p->next) { + if (ret > (PAGE_SIZE - 10)) + continue; + ret += snprintf(&buf[ret], (PAGE_SIZE - ret - 1), + "0x%08lx - 0x%08lx\n", + ((unsigned long) p->base), + ((unsigned long) p->base + p->num - 1)); + } + for (p = data->mem_db.next; p != &data->mem_db; p = p->next) { if (ret > (PAGE_SIZE - 10)) continue; @@ -977,7 +1049,7 @@ static ssize_t show_mem_db(struct device *dev, ((unsigned long) p->base + p->num - 1)); } - mutex_unlock(&rsrc_mutex); + mutex_unlock(&s->ops_mutex); return ret; } @@ -1005,9 +1077,11 @@ static ssize_t store_mem_db(struct device *dev, if (end_addr < start_addr) return -EINVAL; + mutex_lock(&s->ops_mutex); ret = adjust_memory(s, add, start_addr, end_addr); if (!ret) s->resource_setup_new = 1; + mutex_unlock(&s->ops_mutex); return ret ? ret : count; } diff --git a/drivers/pcmcia/socket_sysfs.c b/drivers/pcmcia/socket_sysfs.c index 7a45600..0827801 100644 --- a/drivers/pcmcia/socket_sysfs.c +++ b/drivers/pcmcia/socket_sysfs.c @@ -88,15 +88,14 @@ static DEVICE_ATTR(card_vcc, 0444, pccard_show_vcc, NULL); static ssize_t pccard_store_insert(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - ssize_t ret; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; - ret = pcmcia_insert_card(s); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_INSERT); - return ret ? ret : count; + return count; } static DEVICE_ATTR(card_insert, 0200, NULL, pccard_store_insert); @@ -113,18 +112,22 @@ static ssize_t pccard_store_card_pm_state(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - ssize_t ret = -EINVAL; struct pcmcia_socket *s = to_socket(dev); + ssize_t ret = count; if (!count) return -EINVAL; - if (!(s->state & SOCKET_SUSPEND) && !strncmp(buf, "off", 3)) - ret = pcmcia_suspend_card(s); - else if ((s->state & SOCKET_SUSPEND) && !strncmp(buf, "on", 2)) - ret = pcmcia_resume_card(s); + if (!strncmp(buf, "off", 3)) + pcmcia_parse_uevents(s, PCMCIA_UEVENT_SUSPEND); + else { + if (!strncmp(buf, "on", 2)) + pcmcia_parse_uevents(s, PCMCIA_UEVENT_RESUME); + else + ret = -EINVAL; + } - return ret ? -ENODEV : count; + return ret; } static DEVICE_ATTR(card_pm_state, 0644, pccard_show_card_pm_state, pccard_store_card_pm_state); @@ -132,15 +135,14 @@ static ssize_t pccard_store_eject(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - ssize_t ret; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; - ret = pcmcia_eject_card(s); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_EJECT); - return ret ? ret : count; + return count; } static DEVICE_ATTR(card_eject, 0200, NULL, pccard_store_eject); @@ -167,7 +169,9 @@ static ssize_t pccard_store_irq_mask(struct device *dev, ret = sscanf(buf, "0x%x\n", &mask); if (ret == 1) { + mutex_lock(&s->ops_mutex); s->irq_mask &= mask; + mutex_unlock(&s->ops_mutex); ret = 0; } @@ -187,163 +191,21 @@ static ssize_t pccard_store_resource(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - unsigned long flags; struct pcmcia_socket *s = to_socket(dev); if (!count) return -EINVAL; - spin_lock_irqsave(&s->lock, flags); + mutex_lock(&s->ops_mutex); if (!s->resource_setup_done) s->resource_setup_done = 1; - spin_unlock_irqrestore(&s->lock, flags); - - mutex_lock(&s->skt_mutex); - if ((s->callback) && - (s->state & SOCKET_PRESENT) && - !(s->state & SOCKET_CARDBUS)) { - if (try_module_get(s->callback->owner)) { - s->callback->requery(s, 0); - module_put(s->callback->owner); - } - } - mutex_unlock(&s->skt_mutex); - - return count; -} -static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); + mutex_unlock(&s->ops_mutex); - -static ssize_t pccard_extract_cis(struct pcmcia_socket *s, char *buf, loff_t off, size_t count) -{ - tuple_t tuple; - int status, i; - loff_t pointer = 0; - ssize_t ret = 0; - u_char *tuplebuffer; - u_char *tempbuffer; - - tuplebuffer = kmalloc(sizeof(u_char) * 256, GFP_KERNEL); - if (!tuplebuffer) - return -ENOMEM; - - tempbuffer = kmalloc(sizeof(u_char) * 258, GFP_KERNEL); - if (!tempbuffer) { - ret = -ENOMEM; - goto free_tuple; - } - - memset(&tuple, 0, sizeof(tuple_t)); - - tuple.Attributes = TUPLE_RETURN_LINK | TUPLE_RETURN_COMMON; - tuple.DesiredTuple = RETURN_FIRST_TUPLE; - tuple.TupleOffset = 0; - - status = pccard_get_first_tuple(s, BIND_FN_ALL, &tuple); - while (!status) { - tuple.TupleData = tuplebuffer; - tuple.TupleDataMax = 255; - memset(tuplebuffer, 0, sizeof(u_char) * 255); - - status = pccard_get_tuple_data(s, &tuple); - if (status) - break; - - if (off < (pointer + 2 + tuple.TupleDataLen)) { - tempbuffer[0] = tuple.TupleCode & 0xff; - tempbuffer[1] = tuple.TupleLink & 0xff; - for (i = 0; i < tuple.TupleDataLen; i++) - tempbuffer[i + 2] = tuplebuffer[i] & 0xff; - - for (i = 0; i < (2 + tuple.TupleDataLen); i++) { - if (((i + pointer) >= off) && - (i + pointer) < (off + count)) { - buf[ret] = tempbuffer[i]; - ret++; - } - } - } - - pointer += 2 + tuple.TupleDataLen; - - if (pointer >= (off + count)) - break; - - if (tuple.TupleCode == CISTPL_END) - break; - status = pccard_get_next_tuple(s, BIND_FN_ALL, &tuple); - } - - kfree(tempbuffer); - free_tuple: - kfree(tuplebuffer); - - return ret; -} - -static ssize_t pccard_show_cis(struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) -{ - unsigned int size = 0x200; - - if (off >= size) - count = 0; - else { - struct pcmcia_socket *s; - unsigned int chains; - - if (off + count > size) - count = size - off; - - s = to_socket(container_of(kobj, struct device, kobj)); - - if (!(s->state & SOCKET_PRESENT)) - return -ENODEV; - if (pccard_validate_cis(s, &chains)) - return -EIO; - if (!chains) - return -ENODATA; - - count = pccard_extract_cis(s, buf, off, count); - } - - return count; -} - -static ssize_t pccard_store_cis(struct kobject *kobj, - struct bin_attribute *bin_attr, - char *buf, loff_t off, size_t count) -{ - struct pcmcia_socket *s = to_socket(container_of(kobj, struct device, kobj)); - int error; - - if (off) - return -EINVAL; - - if (count >= CISTPL_MAX_CIS_SIZE) - return -EINVAL; - - if (!(s->state & SOCKET_PRESENT)) - return -ENODEV; - - error = pcmcia_replace_cis(s, buf, count); - if (error) - return -EIO; - - mutex_lock(&s->skt_mutex); - if ((s->callback) && (s->state & SOCKET_PRESENT) && - !(s->state & SOCKET_CARDBUS)) { - if (try_module_get(s->callback->owner)) { - s->callback->requery(s, 1); - module_put(s->callback->owner); - } - } - mutex_unlock(&s->skt_mutex); + pcmcia_parse_uevents(s, PCMCIA_UEVENT_REQUERY); return count; } - +static DEVICE_ATTR(available_resources_setup_done, 0600, pccard_show_resource, pccard_store_resource); static struct attribute *pccard_socket_attributes[] = { &dev_attr_card_type.attr, @@ -362,28 +224,12 @@ static const struct attribute_group socket_attrs = { .attrs = pccard_socket_attributes, }; -static struct bin_attribute pccard_cis_attr = { - .attr = { .name = "cis", .mode = S_IRUGO | S_IWUSR }, - .size = 0x200, - .read = pccard_show_cis, - .write = pccard_store_cis, -}; - int pccard_sysfs_add_socket(struct device *dev) { - int ret = 0; - - ret = sysfs_create_group(&dev->kobj, &socket_attrs); - if (!ret) { - ret = sysfs_create_bin_file(&dev->kobj, &pccard_cis_attr); - if (ret) - sysfs_remove_group(&dev->kobj, &socket_attrs); - } - return ret; + return sysfs_create_group(&dev->kobj, &socket_attrs); } void pccard_sysfs_remove_socket(struct device *dev) { - sysfs_remove_bin_file(&dev->kobj, &pccard_cis_attr); sysfs_remove_group(&dev->kobj, &socket_attrs); } diff --git a/drivers/pcmcia/xxs1500_ss.c b/drivers/pcmcia/xxs1500_ss.c new file mode 100644 index 0000000..61560cd --- /dev/null +++ b/drivers/pcmcia/xxs1500_ss.c @@ -0,0 +1,350 @@ +/* + * PCMCIA socket code for the MyCable XXS1500 system. + * + * Copyright (c) 2009 Manuel Lauss <manuel.lauss@gmail.com> + * + */ + +#include <linux/delay.h> +#include <linux/gpio.h> +#include <linux/interrupt.h> +#include <linux/io.h> +#include <linux/ioport.h> +#include <linux/mm.h> +#include <linux/platform_device.h> +#include <linux/pm.h> +#include <linux/resource.h> +#include <linux/spinlock.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/cs.h> +#include <pcmcia/ss.h> +#include <pcmcia/cistpl.h> + +#include <asm/irq.h> +#include <asm/system.h> +#include <asm/mach-au1x00/au1000.h> + +#define MEM_MAP_SIZE 0x400000 +#define IO_MAP_SIZE 0x1000 + + +/* + * 3.3V cards only; all interfacing is done via gpios: + * + * 0/1: carddetect (00 = card present, xx = huh) + * 4: card irq + * 204: reset (high-act) + * 205: buffer enable (low-act) + * 208/209: card voltage key (00,01,10,11) + * 210: battwarn + * 211: batdead + * 214: power (low-act) + */ +#define GPIO_CDA 0 +#define GPIO_CDB 1 +#define GPIO_CARDIRQ 4 +#define GPIO_RESET 204 +#define GPIO_OUTEN 205 +#define GPIO_VSL 208 +#define GPIO_VSH 209 +#define GPIO_BATTDEAD 210 +#define GPIO_BATTWARN 211 +#define GPIO_POWER 214 + +struct xxs1500_pcmcia_sock { + struct pcmcia_socket socket; + void *virt_io; + + phys_addr_t phys_io; + phys_addr_t phys_attr; + phys_addr_t phys_mem; + + /* previous flags for set_socket() */ + unsigned int old_flags; +}; + +#define to_xxs_socket(x) container_of(x, struct xxs1500_pcmcia_sock, socket) + +static irqreturn_t cdirq(int irq, void *data) +{ + struct xxs1500_pcmcia_sock *sock = data; + + pcmcia_parse_events(&sock->socket, SS_DETECT); + + return IRQ_HANDLED; +} + +static int xxs1500_pcmcia_configure(struct pcmcia_socket *skt, + struct socket_state_t *state) +{ + struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt); + unsigned int changed; + + /* power control */ + switch (state->Vcc) { + case 0: + gpio_set_value(GPIO_POWER, 1); /* power off */ + break; + case 33: + gpio_set_value(GPIO_POWER, 0); /* power on */ + break; + case 50: + default: + return -EINVAL; + } + + changed = state->flags ^ sock->old_flags; + + if (changed & SS_RESET) { + if (state->flags & SS_RESET) { + gpio_set_value(GPIO_RESET, 1); /* assert reset */ + gpio_set_value(GPIO_OUTEN, 1); /* buffers off */ + } else { + gpio_set_value(GPIO_RESET, 0); /* deassert reset */ + gpio_set_value(GPIO_OUTEN, 0); /* buffers on */ + msleep(500); + } + } + + sock->old_flags = state->flags; + + return 0; +} + +static int xxs1500_pcmcia_get_status(struct pcmcia_socket *skt, + unsigned int *value) +{ + unsigned int status; + int i; + + status = 0; + + /* check carddetects: GPIO[0:1] must both be low */ + if (!gpio_get_value(GPIO_CDA) && !gpio_get_value(GPIO_CDB)) + status |= SS_DETECT; + + /* determine card voltage: GPIO[208:209] binary value */ + i = (!!gpio_get_value(GPIO_VSL)) | ((!!gpio_get_value(GPIO_VSH)) << 1); + + switch (i) { + case 0: + case 1: + case 2: + status |= SS_3VCARD; /* 3V card */ + break; + case 3: /* 5V card, unsupported */ + default: + status |= SS_XVCARD; /* treated as unsupported in core */ + } + + /* GPIO214: low active power switch */ + status |= gpio_get_value(GPIO_POWER) ? 0 : SS_POWERON; + + /* GPIO204: high-active reset line */ + status |= gpio_get_value(GPIO_RESET) ? SS_RESET : SS_READY; + + /* other stuff */ + status |= gpio_get_value(GPIO_BATTDEAD) ? 0 : SS_BATDEAD; + status |= gpio_get_value(GPIO_BATTWARN) ? 0 : SS_BATWARN; + + *value = status; + + return 0; +} + +static int xxs1500_pcmcia_sock_init(struct pcmcia_socket *skt) +{ + gpio_direction_input(GPIO_CDA); + gpio_direction_input(GPIO_CDB); + gpio_direction_input(GPIO_VSL); + gpio_direction_input(GPIO_VSH); + gpio_direction_input(GPIO_BATTDEAD); + gpio_direction_input(GPIO_BATTWARN); + gpio_direction_output(GPIO_RESET, 1); /* assert reset */ + gpio_direction_output(GPIO_OUTEN, 1); /* disable buffers */ + gpio_direction_output(GPIO_POWER, 1); /* power off */ + + return 0; +} + +static int xxs1500_pcmcia_sock_suspend(struct pcmcia_socket *skt) +{ + return 0; +} + +static int au1x00_pcmcia_set_io_map(struct pcmcia_socket *skt, + struct pccard_io_map *map) +{ + struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt); + + map->start = (u32)sock->virt_io; + map->stop = map->start + IO_MAP_SIZE; + + return 0; +} + +static int au1x00_pcmcia_set_mem_map(struct pcmcia_socket *skt, + struct pccard_mem_map *map) +{ + struct xxs1500_pcmcia_sock *sock = to_xxs_socket(skt); + + if (map->flags & MAP_ATTRIB) + map->static_start = sock->phys_attr + map->card_start; + else + map->static_start = sock->phys_mem + map->card_start; + + return 0; +} + +static struct pccard_operations xxs1500_pcmcia_operations = { + .init = xxs1500_pcmcia_sock_init, + .suspend = xxs1500_pcmcia_sock_suspend, + .get_status = xxs1500_pcmcia_get_status, + .set_socket = xxs1500_pcmcia_configure, + .set_io_map = au1x00_pcmcia_set_io_map, + .set_mem_map = au1x00_pcmcia_set_mem_map, +}; + +static int __devinit xxs1500_pcmcia_probe(struct platform_device *pdev) +{ + struct xxs1500_pcmcia_sock *sock; + struct resource *r; + int ret, irq; + + sock = kzalloc(sizeof(struct xxs1500_pcmcia_sock), GFP_KERNEL); + if (!sock) + return -ENOMEM; + + ret = -ENODEV; + + /* + * pseudo-attr: The 32bit address of the PCMCIA attribute space + * for this socket (usually the 36bit address shifted 4 to the + * right). + */ + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-attr"); + if (!r) { + dev_err(&pdev->dev, "missing 'pcmcia-attr' resource!\n"); + goto out0; + } + sock->phys_attr = r->start; + + /* + * pseudo-mem: The 32bit address of the PCMCIA memory space for + * this socket (usually the 36bit address shifted 4 to the right) + */ + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-mem"); + if (!r) { + dev_err(&pdev->dev, "missing 'pcmcia-mem' resource!\n"); + goto out0; + } + sock->phys_mem = r->start; + + /* + * pseudo-io: The 32bit address of the PCMCIA IO space for this + * socket (usually the 36bit address shifted 4 to the right). + */ + r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "pcmcia-io"); + if (!r) { + dev_err(&pdev->dev, "missing 'pcmcia-io' resource!\n"); + goto out0; + } + sock->phys_io = r->start; + + + /* + * PCMCIA client drivers use the inb/outb macros to access + * the IO registers. Since mips_io_port_base is added + * to the access address of the mips implementation of + * inb/outb, we need to subtract it here because we want + * to access the I/O or MEM address directly, without + * going through this "mips_io_port_base" mechanism. + */ + sock->virt_io = (void *)(ioremap(sock->phys_io, IO_MAP_SIZE) - + mips_io_port_base); + + if (!sock->virt_io) { + dev_err(&pdev->dev, "cannot remap IO area\n"); + ret = -ENOMEM; + goto out0; + } + + sock->socket.ops = &xxs1500_pcmcia_operations; + sock->socket.owner = THIS_MODULE; + sock->socket.pci_irq = gpio_to_irq(GPIO_CARDIRQ); + sock->socket.features = SS_CAP_STATIC_MAP | SS_CAP_PCCARD; + sock->socket.map_size = MEM_MAP_SIZE; + sock->socket.io_offset = (unsigned long)sock->virt_io; + sock->socket.dev.parent = &pdev->dev; + sock->socket.resource_ops = &pccard_static_ops; + + platform_set_drvdata(pdev, sock); + + /* setup carddetect irq: use one of the 2 GPIOs as an + * edge detector. + */ + irq = gpio_to_irq(GPIO_CDA); + set_irq_type(irq, IRQ_TYPE_EDGE_BOTH); + ret = request_irq(irq, cdirq, 0, "pcmcia_carddetect", sock); + if (ret) { + dev_err(&pdev->dev, "cannot setup cd irq\n"); + goto out1; + } + + ret = pcmcia_register_socket(&sock->socket); + if (ret) { + dev_err(&pdev->dev, "failed to register\n"); + goto out2; + } + + printk(KERN_INFO "MyCable XXS1500 PCMCIA socket services\n"); + + return 0; + +out2: + free_irq(gpio_to_irq(GPIO_CDA), sock); +out1: + iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); +out0: + kfree(sock); + return ret; +} + +static int __devexit xxs1500_pcmcia_remove(struct platform_device *pdev) +{ + struct xxs1500_pcmcia_sock *sock = platform_get_drvdata(pdev); + + pcmcia_unregister_socket(&sock->socket); + free_irq(gpio_to_irq(GPIO_CDA), sock); + iounmap((void *)(sock->virt_io + (u32)mips_io_port_base)); + kfree(sock); + + return 0; +} + +static struct platform_driver xxs1500_pcmcia_socket_driver = { + .driver = { + .name = "xxs1500_pcmcia", + .owner = THIS_MODULE, + }, + .probe = xxs1500_pcmcia_probe, + .remove = __devexit_p(xxs1500_pcmcia_remove), +}; + +int __init xxs1500_pcmcia_socket_load(void) +{ + return platform_driver_register(&xxs1500_pcmcia_socket_driver); +} + +void __exit xxs1500_pcmcia_socket_unload(void) +{ + platform_driver_unregister(&xxs1500_pcmcia_socket_driver); +} + +module_init(xxs1500_pcmcia_socket_load); +module_exit(xxs1500_pcmcia_socket_unload); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("PCMCIA Socket Services for MyCable XXS1500 systems"); +MODULE_AUTHOR("Manuel Lauss"); diff --git a/drivers/pcmcia/yenta_socket.c b/drivers/pcmcia/yenta_socket.c index e4d12ac..b85375f 100644 --- a/drivers/pcmcia/yenta_socket.c +++ b/drivers/pcmcia/yenta_socket.c @@ -37,6 +37,11 @@ static int pwr_irqs_off; module_param(pwr_irqs_off, bool, 0644); MODULE_PARM_DESC(pwr_irqs_off, "Force IRQs off during power-on of slot. Use only when seeing IRQ storms!"); +static char o2_speedup[] = "default"; +module_param_string(o2_speedup, o2_speedup, sizeof(o2_speedup), 0444); +MODULE_PARM_DESC(o2_speedup, "Use prefetch/burst for O2-bridges: 'on', 'off' " + "or 'default' (uses recommended behaviour for the detected bridge)"); + #define debug(x, s, args...) dev_dbg(&s->dev->dev, x, ##args) /* Don't ask.. */ @@ -649,9 +654,10 @@ static int yenta_search_one_res(struct resource *root, struct resource *res, static int yenta_search_res(struct yenta_socket *socket, struct resource *res, u32 min) { + struct resource *root; int i; - for (i = 0; i < PCI_BUS_NUM_RESOURCES; i++) { - struct resource *root = socket->dev->bus->resource[i]; + + pci_bus_for_each_resource(socket->dev->bus, root, i) { if (!root) continue; |