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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /drivers/pcmcia/pd6729.c | |
download | kernel_samsung_aries-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.zip kernel_samsung_aries-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.gz kernel_samsung_aries-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2 |
Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
Diffstat (limited to 'drivers/pcmcia/pd6729.c')
-rw-r--r-- | drivers/pcmcia/pd6729.c | 871 |
1 files changed, 871 insertions, 0 deletions
diff --git a/drivers/pcmcia/pd6729.c b/drivers/pcmcia/pd6729.c new file mode 100644 index 0000000..3f43643 --- /dev/null +++ b/drivers/pcmcia/pd6729.c @@ -0,0 +1,871 @@ +/* + * Driver for the Cirrus PD6729 PCI-PCMCIA bridge. + * + * Based on the i82092.c driver. + * + * This software may be used and distributed according to the terms of + * the GNU General Public License, incorporated herein by reference. + */ + +#include <linux/kernel.h> +#include <linux/config.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/init.h> +#include <linux/workqueue.h> +#include <linux/interrupt.h> +#include <linux/device.h> + +#include <pcmcia/cs_types.h> +#include <pcmcia/ss.h> +#include <pcmcia/cs.h> + +#include <asm/system.h> +#include <asm/io.h> + +#include "pd6729.h" +#include "i82365.h" +#include "cirrus.h" + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("Driver for the Cirrus PD6729 PCI-PCMCIA bridge"); +MODULE_AUTHOR("Jun Komuro <komurojun-mbn@nifty.com>"); + +#define MAX_SOCKETS 2 + +/* + * simple helper functions + * External clock time, in nanoseconds. 120 ns = 8.33 MHz + */ +#define to_cycles(ns) ((ns)/120) + +#ifndef NO_IRQ +#define NO_IRQ ((unsigned int)(0)) +#endif + +/* + * PARAMETERS + * irq_mode=n + * Specifies the interrupt delivery mode. The default (1) is to use PCI + * interrupts; a value of 0 selects ISA interrupts. This must be set for + * correct operation of PCI card readers. + * + * irq_list=i,j,... + * This list limits the set of interrupts that can be used by PCMCIA + * cards. + * The default list is 3,4,5,7,9,10,11. + * (irq_list parameter is not used, if irq_mode = 1) + */ + +static int irq_mode = 1; /* 0 = ISA interrupt, 1 = PCI interrupt */ +static int irq_list[16]; +static int irq_list_count = 0; + +module_param(irq_mode, int, 0444); +module_param_array(irq_list, int, &irq_list_count, 0444); +MODULE_PARM_DESC(irq_mode, + "interrupt delivery mode. 0 = ISA, 1 = PCI. default is 1"); +MODULE_PARM_DESC(irq_list, "interrupts that can be used by PCMCIA cards"); + +static DEFINE_SPINLOCK(port_lock); + +/* basic value read/write functions */ + +static unsigned char indirect_read(struct pd6729_socket *socket, + unsigned short reg) +{ + unsigned long port; + unsigned char val; + unsigned long flags; + + spin_lock_irqsave(&port_lock, flags); + reg += socket->number * 0x40; + port = socket->io_base; + outb(reg, port); + val = inb(port + 1); + spin_unlock_irqrestore(&port_lock, flags); + + return val; +} + +static unsigned short indirect_read16(struct pd6729_socket *socket, + unsigned short reg) +{ + unsigned long port; + unsigned short tmp; + unsigned long flags; + + spin_lock_irqsave(&port_lock, flags); + reg = reg + socket->number * 0x40; + port = socket->io_base; + outb(reg, port); + tmp = inb(port + 1); + reg++; + outb(reg, port); + tmp = tmp | (inb(port + 1) << 8); + spin_unlock_irqrestore(&port_lock, flags); + + return tmp; +} + +static void indirect_write(struct pd6729_socket *socket, unsigned short reg, + unsigned char value) +{ + unsigned long port; + unsigned long flags; + + spin_lock_irqsave(&port_lock, flags); + reg = reg + socket->number * 0x40; + port = socket->io_base; + outb(reg, port); + outb(value, port + 1); + spin_unlock_irqrestore(&port_lock, flags); +} + +static void indirect_setbit(struct pd6729_socket *socket, unsigned short reg, + unsigned char mask) +{ + unsigned long port; + unsigned char val; + unsigned long flags; + + spin_lock_irqsave(&port_lock, flags); + reg = reg + socket->number * 0x40; + port = socket->io_base; + outb(reg, port); + val = inb(port + 1); + val |= mask; + outb(reg, port); + outb(val, port + 1); + spin_unlock_irqrestore(&port_lock, flags); +} + +static void indirect_resetbit(struct pd6729_socket *socket, unsigned short reg, + unsigned char mask) +{ + unsigned long port; + unsigned char val; + unsigned long flags; + + spin_lock_irqsave(&port_lock, flags); + reg = reg + socket->number * 0x40; + port = socket->io_base; + outb(reg, port); + val = inb(port + 1); + val &= ~mask; + outb(reg, port); + outb(val, port + 1); + spin_unlock_irqrestore(&port_lock, flags); +} + +static void indirect_write16(struct pd6729_socket *socket, unsigned short reg, + unsigned short value) +{ + unsigned long port; + unsigned char val; + unsigned long flags; + + spin_lock_irqsave(&port_lock, flags); + reg = reg + socket->number * 0x40; + port = socket->io_base; + + outb(reg, port); + val = value & 255; + outb(val, port + 1); + + reg++; + + outb(reg, port); + val = value >> 8; + outb(val, port + 1); + spin_unlock_irqrestore(&port_lock, flags); +} + +/* Interrupt handler functionality */ + +static irqreturn_t pd6729_interrupt(int irq, void *dev, struct pt_regs *regs) +{ + struct pd6729_socket *socket = (struct pd6729_socket *)dev; + int i; + int loopcount = 0; + int handled = 0; + unsigned int events, active = 0; + + while (1) { + loopcount++; + if (loopcount > 20) { + printk(KERN_ERR "pd6729: infinite eventloop " + "in interrupt\n"); + break; + } + + active = 0; + + for (i = 0; i < MAX_SOCKETS; i++) { + unsigned int csc; + + /* card status change register */ + csc = indirect_read(&socket[i], I365_CSC); + if (csc == 0) /* no events on this socket */ + continue; + + handled = 1; + events = 0; + + if (csc & I365_CSC_DETECT) { + events |= SS_DETECT; + dprintk("Card detected in socket %i!\n", i); + } + + if (indirect_read(&socket[i], I365_INTCTL) + & I365_PC_IOCARD) { + /* For IO/CARDS, bit 0 means "read the card" */ + events |= (csc & I365_CSC_STSCHG) + ? SS_STSCHG : 0; + } else { + /* Check for battery/ready events */ + events |= (csc & I365_CSC_BVD1) + ? SS_BATDEAD : 0; + events |= (csc & I365_CSC_BVD2) + ? SS_BATWARN : 0; + events |= (csc & I365_CSC_READY) + ? SS_READY : 0; + } + + if (events) { + pcmcia_parse_events(&socket[i].socket, events); + } + active |= events; + } + + if (active == 0) /* no more events to handle */ + break; + } + return IRQ_RETVAL(handled); +} + +/* socket functions */ + +static void pd6729_interrupt_wrapper(unsigned long data) +{ + struct pd6729_socket *socket = (struct pd6729_socket *) data; + + pd6729_interrupt(0, (void *)socket, NULL); + mod_timer(&socket->poll_timer, jiffies + HZ); +} + +static int pd6729_get_status(struct pcmcia_socket *sock, u_int *value) +{ + struct pd6729_socket *socket + = container_of(sock, struct pd6729_socket, socket); + unsigned int status; + unsigned int data; + struct pd6729_socket *t; + + /* Interface Status Register */ + status = indirect_read(socket, I365_STATUS); + *value = 0; + + if ((status & I365_CS_DETECT) == I365_CS_DETECT) { + *value |= SS_DETECT; + } + + /* + * IO cards have a different meaning of bits 0,1 + * Also notice the inverse-logic on the bits + */ + if (indirect_read(socket, I365_INTCTL) & I365_PC_IOCARD) { + /* IO card */ + if (!(status & I365_CS_STSCHG)) + *value |= SS_STSCHG; + } else { + /* non I/O card */ + if (!(status & I365_CS_BVD1)) + *value |= SS_BATDEAD; + if (!(status & I365_CS_BVD2)) + *value |= SS_BATWARN; + } + + if (status & I365_CS_WRPROT) + *value |= SS_WRPROT; /* card is write protected */ + + if (status & I365_CS_READY) + *value |= SS_READY; /* card is not busy */ + + if (status & I365_CS_POWERON) + *value |= SS_POWERON; /* power is applied to the card */ + + t = (socket->number) ? socket : socket + 1; + indirect_write(t, PD67_EXT_INDEX, PD67_EXTERN_DATA); + data = indirect_read16(t, PD67_EXT_DATA); + *value |= (data & PD67_EXD_VS1(socket->number)) ? 0 : SS_3VCARD; + + return 0; +} + + +static int pd6729_get_socket(struct pcmcia_socket *sock, socket_state_t *state) +{ + struct pd6729_socket *socket + = container_of(sock, struct pd6729_socket, socket); + unsigned char reg, vcc, vpp; + + state->flags = 0; + state->Vcc = 0; + state->Vpp = 0; + state->io_irq = 0; + state->csc_mask = 0; + + /* First the power status of the socket */ + reg = indirect_read(socket, I365_POWER); + + if (reg & I365_PWR_AUTO) + state->flags |= SS_PWR_AUTO; /* Automatic Power Switch */ + + if (reg & I365_PWR_OUT) + state->flags |= SS_OUTPUT_ENA; /* Output signals are enabled */ + + vcc = reg & I365_VCC_MASK; vpp = reg & I365_VPP1_MASK; + + if (reg & I365_VCC_5V) { + state->Vcc = (indirect_read(socket, PD67_MISC_CTL_1) & + PD67_MC1_VCC_3V) ? 33 : 50; + + if (vpp == I365_VPP1_5V) { + if (state->Vcc == 50) + state->Vpp = 50; + else + state->Vpp = 33; + } + if (vpp == I365_VPP1_12V) + state->Vpp = 120; + } + + /* Now the IO card, RESET flags and IO interrupt */ + reg = indirect_read(socket, I365_INTCTL); + + if ((reg & I365_PC_RESET) == 0) + state->flags |= SS_RESET; + if (reg & I365_PC_IOCARD) + state->flags |= SS_IOCARD; /* This is an IO card */ + + /* Set the IRQ number */ + state->io_irq = socket->card_irq; + + /* Card status change */ + reg = indirect_read(socket, I365_CSCINT); + + if (reg & I365_CSC_DETECT) + state->csc_mask |= SS_DETECT; /* Card detect is enabled */ + + if (state->flags & SS_IOCARD) {/* IO Cards behave different */ + if (reg & I365_CSC_STSCHG) + state->csc_mask |= SS_STSCHG; + } else { + if (reg & I365_CSC_BVD1) + state->csc_mask |= SS_BATDEAD; + if (reg & I365_CSC_BVD2) + state->csc_mask |= SS_BATWARN; + if (reg & I365_CSC_READY) + state->csc_mask |= SS_READY; + } + + return 0; +} + +static int pd6729_set_socket(struct pcmcia_socket *sock, socket_state_t *state) +{ + struct pd6729_socket *socket + = container_of(sock, struct pd6729_socket, socket); + unsigned char reg, data; + + /* First, set the global controller options */ + indirect_write(socket, I365_GBLCTL, 0x00); + indirect_write(socket, I365_GENCTL, 0x00); + + /* Values for the IGENC register */ + socket->card_irq = state->io_irq; + + reg = 0; + /* The reset bit has "inverse" logic */ + if (!(state->flags & SS_RESET)) + reg |= I365_PC_RESET; + if (state->flags & SS_IOCARD) + reg |= I365_PC_IOCARD; + + /* IGENC, Interrupt and General Control Register */ + indirect_write(socket, I365_INTCTL, reg); + + /* Power registers */ + + reg = I365_PWR_NORESET; /* default: disable resetdrv on resume */ + + if (state->flags & SS_PWR_AUTO) { + dprintk("Auto power\n"); + reg |= I365_PWR_AUTO; /* automatic power mngmnt */ + } + if (state->flags & SS_OUTPUT_ENA) { + dprintk("Power Enabled\n"); + reg |= I365_PWR_OUT; /* enable power */ + } + + switch (state->Vcc) { + case 0: + break; + case 33: + dprintk("setting voltage to Vcc to 3.3V on socket %i\n", + socket->number); + reg |= I365_VCC_5V; + indirect_setbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); + break; + case 50: + dprintk("setting voltage to Vcc to 5V on socket %i\n", + socket->number); + reg |= I365_VCC_5V; + indirect_resetbit(socket, PD67_MISC_CTL_1, PD67_MC1_VCC_3V); + break; + default: + dprintk("pd6729: pd6729_set_socket called with " + "invalid VCC power value: %i\n", + state->Vcc); + return -EINVAL; + } + + switch (state->Vpp) { + case 0: + dprintk("not setting Vpp on socket %i\n", socket->number); + break; + case 33: + case 50: + dprintk("setting Vpp to Vcc for socket %i\n", socket->number); + reg |= I365_VPP1_5V; + break; + case 120: + dprintk("setting Vpp to 12.0\n"); + reg |= I365_VPP1_12V; + break; + default: + dprintk("pd6729: pd6729_set_socket called with invalid VPP power value: %i\n", + state->Vpp); + return -EINVAL; + } + + /* only write if changed */ + if (reg != indirect_read(socket, I365_POWER)) + indirect_write(socket, I365_POWER, reg); + + if (irq_mode == 1) { + /* all interrupts are to be done as PCI interrupts */ + data = PD67_EC1_INV_MGMT_IRQ | PD67_EC1_INV_CARD_IRQ; + } else + data = 0; + + indirect_write(socket, PD67_EXT_INDEX, PD67_EXT_CTL_1); + indirect_write(socket, PD67_EXT_DATA, data); + + /* Enable specific interrupt events */ + + reg = 0x00; + if (state->csc_mask & SS_DETECT) { + reg |= I365_CSC_DETECT; + } + if (state->flags & SS_IOCARD) { + if (state->csc_mask & SS_STSCHG) + reg |= I365_CSC_STSCHG; + } else { + if (state->csc_mask & SS_BATDEAD) + reg |= I365_CSC_BVD1; + if (state->csc_mask & SS_BATWARN) + reg |= I365_CSC_BVD2; + if (state->csc_mask & SS_READY) + reg |= I365_CSC_READY; + } + if (irq_mode == 1) + reg |= 0x30; /* management IRQ: PCI INTA# = "irq 3" */ + indirect_write(socket, I365_CSCINT, reg); + + reg = indirect_read(socket, I365_INTCTL); + if (irq_mode == 1) + reg |= 0x03; /* card IRQ: PCI INTA# = "irq 3" */ + else + reg |= socket->card_irq; + indirect_write(socket, I365_INTCTL, reg); + + /* now clear the (probably bogus) pending stuff by doing a dummy read */ + (void)indirect_read(socket, I365_CSC); + + return 0; +} + +static int pd6729_set_io_map(struct pcmcia_socket *sock, + struct pccard_io_map *io) +{ + struct pd6729_socket *socket + = container_of(sock, struct pd6729_socket, socket); + unsigned char map, ioctl; + + map = io->map; + + /* Check error conditions */ + if (map > 1) { + dprintk("pd6729_set_io_map with invalid map"); + return -EINVAL; + } + + /* Turn off the window before changing anything */ + if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_IO(map)) + indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_IO(map)); + + /* dprintk("set_io_map: Setting range to %x - %x\n", + io->start, io->stop);*/ + + /* write the new values */ + indirect_write16(socket, I365_IO(map)+I365_W_START, io->start); + indirect_write16(socket, I365_IO(map)+I365_W_STOP, io->stop); + + ioctl = indirect_read(socket, I365_IOCTL) & ~I365_IOCTL_MASK(map); + + if (io->flags & MAP_0WS) ioctl |= I365_IOCTL_0WS(map); + if (io->flags & MAP_16BIT) ioctl |= I365_IOCTL_16BIT(map); + if (io->flags & MAP_AUTOSZ) ioctl |= I365_IOCTL_IOCS16(map); + + indirect_write(socket, I365_IOCTL, ioctl); + + /* Turn the window back on if needed */ + if (io->flags & MAP_ACTIVE) + indirect_setbit(socket, I365_ADDRWIN, I365_ENA_IO(map)); + + return 0; +} + +static int pd6729_set_mem_map(struct pcmcia_socket *sock, + struct pccard_mem_map *mem) +{ + struct pd6729_socket *socket + = container_of(sock, struct pd6729_socket, socket); + unsigned short base, i; + unsigned char map; + + map = mem->map; + if (map > 4) { + printk("pd6729_set_mem_map: invalid map"); + return -EINVAL; + } + + if ((mem->res->start > mem->res->end) || (mem->speed > 1000)) { + printk("pd6729_set_mem_map: invalid address / speed"); + return -EINVAL; + } + + /* Turn off the window before changing anything */ + if (indirect_read(socket, I365_ADDRWIN) & I365_ENA_MEM(map)) + indirect_resetbit(socket, I365_ADDRWIN, I365_ENA_MEM(map)); + + /* write the start address */ + base = I365_MEM(map); + i = (mem->res->start >> 12) & 0x0fff; + if (mem->flags & MAP_16BIT) + i |= I365_MEM_16BIT; + if (mem->flags & MAP_0WS) + i |= I365_MEM_0WS; + indirect_write16(socket, base + I365_W_START, i); + + /* write the stop address */ + + i= (mem->res->end >> 12) & 0x0fff; + switch (to_cycles(mem->speed)) { + case 0: + break; + case 1: + i |= I365_MEM_WS0; + break; + case 2: + i |= I365_MEM_WS1; + break; + default: + i |= I365_MEM_WS1 | I365_MEM_WS0; + break; + } + + indirect_write16(socket, base + I365_W_STOP, i); + + /* Take care of high byte */ + indirect_write(socket, PD67_EXT_INDEX, PD67_MEM_PAGE(map)); + indirect_write(socket, PD67_EXT_DATA, mem->res->start >> 24); + + /* card start */ + + i = ((mem->card_start - mem->res->start) >> 12) & 0x3fff; + if (mem->flags & MAP_WRPROT) + i |= I365_MEM_WRPROT; + if (mem->flags & MAP_ATTRIB) { + /* dprintk("requesting attribute memory for socket %i\n", + socket->number);*/ + i |= I365_MEM_REG; + } else { + /* dprintk("requesting normal memory for socket %i\n", + socket->number);*/ + } + indirect_write16(socket, base + I365_W_OFF, i); + + /* Enable the window if necessary */ + if (mem->flags & MAP_ACTIVE) + indirect_setbit(socket, I365_ADDRWIN, I365_ENA_MEM(map)); + + return 0; +} + +static int pd6729_init(struct pcmcia_socket *sock) +{ + int i; + struct resource res = { .end = 0x0fff }; + pccard_io_map io = { 0, 0, 0, 0, 1 }; + pccard_mem_map mem = { .res = &res, }; + + pd6729_set_socket(sock, &dead_socket); + for (i = 0; i < 2; i++) { + io.map = i; + pd6729_set_io_map(sock, &io); + } + for (i = 0; i < 5; i++) { + mem.map = i; + pd6729_set_mem_map(sock, &mem); + } + + return 0; +} + + +/* the pccard structure and its functions */ +static struct pccard_operations pd6729_operations = { + .init = pd6729_init, + .get_status = pd6729_get_status, + .get_socket = pd6729_get_socket, + .set_socket = pd6729_set_socket, + .set_io_map = pd6729_set_io_map, + .set_mem_map = pd6729_set_mem_map, +}; + +static irqreturn_t pd6729_test(int irq, void *dev, struct pt_regs *regs) +{ + dprintk("-> hit on irq %d\n", irq); + return IRQ_HANDLED; +} + +static int pd6729_check_irq(int irq, int flags) +{ + if (request_irq(irq, pd6729_test, flags, "x", pd6729_test) != 0) + return -1; + free_irq(irq, pd6729_test); + return 0; +} + +static u_int __init pd6729_isa_scan(void) +{ + u_int mask0, mask = 0; + int i; + + if (irq_mode == 1) { + printk(KERN_INFO "pd6729: PCI card interrupts, " + "PCI status changes\n"); + return 0; + } + + if (irq_list_count == 0) + mask0 = 0xffff; + else + for (i = mask0 = 0; i < irq_list_count; i++) + mask0 |= (1<<irq_list[i]); + + mask0 &= PD67_MASK; + + /* just find interrupts that aren't in use */ + for (i = 0; i < 16; i++) + if ((mask0 & (1 << i)) && (pd6729_check_irq(i, 0) == 0)) + mask |= (1 << i); + + printk(KERN_INFO "pd6729: ISA irqs = "); + for (i = 0; i < 16; i++) + if (mask & (1<<i)) + printk("%s%d", ((mask & ((1<<i)-1)) ? "," : ""), i); + + if (mask == 0) printk("none!"); + + printk(" polling status changes.\n"); + + return mask; +} + +static int __devinit pd6729_pci_probe(struct pci_dev *dev, + const struct pci_device_id *id) +{ + int i, j, ret; + u_int mask; + char configbyte; + struct pd6729_socket *socket; + + socket = kmalloc(sizeof(struct pd6729_socket) * MAX_SOCKETS, + GFP_KERNEL); + if (!socket) + return -ENOMEM; + + memset(socket, 0, sizeof(struct pd6729_socket) * MAX_SOCKETS); + + if ((ret = pci_enable_device(dev))) + goto err_out_free_mem; + + printk(KERN_INFO "pd6729: Cirrus PD6729 PCI to PCMCIA Bridge " + "at 0x%lx on irq %d\n", pci_resource_start(dev, 0), dev->irq); + /* + * Since we have no memory BARs some firmware may not + * have had PCI_COMMAND_MEMORY enabled, yet the device needs it. + */ + pci_read_config_byte(dev, PCI_COMMAND, &configbyte); + if (!(configbyte & PCI_COMMAND_MEMORY)) { + printk(KERN_DEBUG "pd6729: Enabling PCI_COMMAND_MEMORY.\n"); + configbyte |= PCI_COMMAND_MEMORY; + pci_write_config_byte(dev, PCI_COMMAND, configbyte); + } + + ret = pci_request_regions(dev, "pd6729"); + if (ret) { + printk(KERN_INFO "pd6729: pci request region failed.\n"); + goto err_out_disable; + } + + if (dev->irq == NO_IRQ) + irq_mode = 0; /* fall back to ISA interrupt mode */ + + mask = pd6729_isa_scan(); + if (irq_mode == 0 && mask == 0) { + printk(KERN_INFO "pd6729: no ISA interrupt is available.\n"); + goto err_out_free_res; + } + + for (i = 0; i < MAX_SOCKETS; i++) { + socket[i].io_base = pci_resource_start(dev, 0); + socket[i].socket.features |= SS_CAP_PCCARD; + socket[i].socket.map_size = 0x1000; + socket[i].socket.irq_mask = mask; + socket[i].socket.pci_irq = dev->irq; + socket[i].socket.owner = THIS_MODULE; + + socket[i].number = i; + + socket[i].socket.ops = &pd6729_operations; + socket[i].socket.resource_ops = &pccard_nonstatic_ops; + socket[i].socket.dev.dev = &dev->dev; + socket[i].socket.driver_data = &socket[i]; + } + + pci_set_drvdata(dev, socket); + if (irq_mode == 1) { + /* Register the interrupt handler */ + if ((ret = request_irq(dev->irq, pd6729_interrupt, SA_SHIRQ, + "pd6729", socket))) { + printk(KERN_ERR "pd6729: Failed to register irq %d, " + "aborting\n", dev->irq); + goto err_out_free_res; + } + } else { + /* poll Card status change */ + init_timer(&socket->poll_timer); + socket->poll_timer.function = pd6729_interrupt_wrapper; + socket->poll_timer.data = (unsigned long)socket; + socket->poll_timer.expires = jiffies + HZ; + add_timer(&socket->poll_timer); + } + + for (i = 0; i < MAX_SOCKETS; i++) { + ret = pcmcia_register_socket(&socket[i].socket); + if (ret) { + printk(KERN_INFO "pd6729: pcmcia_register_socket " + "failed.\n"); + for (j = 0; j < i ; j++) + pcmcia_unregister_socket(&socket[j].socket); + goto err_out_free_res2; + } + } + + return 0; + + err_out_free_res2: + if (irq_mode == 1) + free_irq(dev->irq, socket); + else + del_timer_sync(&socket->poll_timer); + err_out_free_res: + pci_release_regions(dev); + err_out_disable: + pci_disable_device(dev); + + err_out_free_mem: + kfree(socket); + return ret; +} + +static void __devexit pd6729_pci_remove(struct pci_dev *dev) +{ + int i; + struct pd6729_socket *socket = pci_get_drvdata(dev); + + for (i = 0; i < MAX_SOCKETS; i++) { + /* Turn off all interrupt sources */ + indirect_write(&socket[i], I365_CSCINT, 0); + indirect_write(&socket[i], I365_INTCTL, 0); + + pcmcia_unregister_socket(&socket[i].socket); + } + + if (irq_mode == 1) + free_irq(dev->irq, socket); + else + del_timer_sync(&socket->poll_timer); + pci_release_regions(dev); + pci_disable_device(dev); + + kfree(socket); +} + +static int pd6729_socket_suspend(struct pci_dev *dev, pm_message_t state) +{ + return pcmcia_socket_dev_suspend(&dev->dev, state); +} + +static int pd6729_socket_resume(struct pci_dev *dev) +{ + return pcmcia_socket_dev_resume(&dev->dev); +} + +static struct pci_device_id pd6729_pci_ids[] = { + { + .vendor = PCI_VENDOR_ID_CIRRUS, + .device = PCI_DEVICE_ID_CIRRUS_6729, + .subvendor = PCI_ANY_ID, + .subdevice = PCI_ANY_ID, + }, + { } +}; +MODULE_DEVICE_TABLE(pci, pd6729_pci_ids); + +static struct pci_driver pd6729_pci_drv = { + .name = "pd6729", + .id_table = pd6729_pci_ids, + .probe = pd6729_pci_probe, + .remove = __devexit_p(pd6729_pci_remove), + .suspend = pd6729_socket_suspend, + .resume = pd6729_socket_resume, +}; + +static int pd6729_module_init(void) +{ + return pci_register_driver(&pd6729_pci_drv); +} + +static void pd6729_module_exit(void) +{ + pci_unregister_driver(&pd6729_pci_drv); +} + +module_init(pd6729_module_init); +module_exit(pd6729_module_exit); |