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authorAdrian Bunk <bunk@stusta.de>2005-11-05 20:01:47 +0100
committerJohn W. Linville <linville@tuxdriver.com>2005-11-07 21:50:00 -0500
commit48888cc6120ff945675ef79a3ba2955afa0f5124 (patch)
treef204efafbe99dab92fe25896e98862922aa408d5 /include/linux/eeprom.h
parent8e3babcd69ec0fde874838e276eb0b211c6a5647 (diff)
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[PATCH] kill include/linux/eeprom.h
This patch kills include/linux/eeprom.h . Rationale: - it was only used by one single driver - even this driver didn't do anything useful with it - most of this file are non-inline and non-static functions (sic) This removes include/linux/eeprom.h and cleans drivers/net/ns83820.c up. If you think eeprom.h should be used more extensively, please consider: - the code has to be moved from the header file to a .c file - the currently empty write function has to be implemented - ns83820.c or any other driver should actually use it Noone did any of these during the more than 3 years eeprom.h already exists... Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'include/linux/eeprom.h')
-rw-r--r--include/linux/eeprom.h136
1 files changed, 0 insertions, 136 deletions
diff --git a/include/linux/eeprom.h b/include/linux/eeprom.h
deleted file mode 100644
index 38afd9d..0000000
--- a/include/linux/eeprom.h
+++ /dev/null
@@ -1,136 +0,0 @@
-/* credit winbond-840.c
- */
-#include <asm/io.h>
-struct eeprom_ops {
- void (*set_cs)(void *ee);
- void (*clear_cs)(void *ee);
-};
-
-#define EEPOL_EEDI 0x01
-#define EEPOL_EEDO 0x02
-#define EEPOL_EECLK 0x04
-#define EEPOL_EESEL 0x08
-
-struct eeprom {
- void *dev;
- struct eeprom_ops *ops;
-
- void __iomem * addr;
-
- unsigned ee_addr_bits;
-
- unsigned eesel;
- unsigned eeclk;
- unsigned eedo;
- unsigned eedi;
- unsigned polarity;
- unsigned ee_state;
-
- spinlock_t *lock;
- u32 *cache;
-};
-
-
-u8 eeprom_readb(struct eeprom *ee, unsigned address);
-void eeprom_read(struct eeprom *ee, unsigned address, u8 *bytes,
- unsigned count);
-void eeprom_writeb(struct eeprom *ee, unsigned address, u8 data);
-void eeprom_write(struct eeprom *ee, unsigned address, u8 *bytes,
- unsigned count);
-
-/* The EEPROM commands include the alway-set leading bit. */
-enum EEPROM_Cmds {
- EE_WriteCmd=(5 << 6), EE_ReadCmd=(6 << 6), EE_EraseCmd=(7 << 6),
-};
-
-void setup_ee_mem_bitbanger(struct eeprom *ee, void __iomem *memaddr, int eesel_bit, int eeclk_bit, int eedo_bit, int eedi_bit, unsigned polarity)
-{
- ee->addr = memaddr;
- ee->eesel = 1 << eesel_bit;
- ee->eeclk = 1 << eeclk_bit;
- ee->eedo = 1 << eedo_bit;
- ee->eedi = 1 << eedi_bit;
-
- ee->polarity = polarity;
-
- *ee->cache = readl(ee->addr);
-}
-
-/* foo. put this in a .c file */
-static inline void eeprom_update(struct eeprom *ee, u32 mask, int pol)
-{
- unsigned long flags;
- u32 data;
-
- spin_lock_irqsave(ee->lock, flags);
- data = *ee->cache;
-
- data &= ~mask;
- if (pol)
- data |= mask;
-
- *ee->cache = data;
-//printk("update: %08x\n", data);
- writel(data, ee->addr);
- spin_unlock_irqrestore(ee->lock, flags);
-}
-
-void eeprom_clk_lo(struct eeprom *ee)
-{
- int pol = !!(ee->polarity & EEPOL_EECLK);
-
- eeprom_update(ee, ee->eeclk, pol);
- udelay(2);
-}
-
-void eeprom_clk_hi(struct eeprom *ee)
-{
- int pol = !!(ee->polarity & EEPOL_EECLK);
-
- eeprom_update(ee, ee->eeclk, !pol);
- udelay(2);
-}
-
-void eeprom_send_addr(struct eeprom *ee, unsigned address)
-{
- int pol = !!(ee->polarity & EEPOL_EEDI);
- unsigned i;
- address |= 6 << 6;
-
- /* Shift the read command bits out. */
- for (i=0; i<11; i++) {
- eeprom_update(ee, ee->eedi, ((address >> 10) & 1) ^ pol);
- address <<= 1;
- eeprom_clk_hi(ee);
- eeprom_clk_lo(ee);
- }
- eeprom_update(ee, ee->eedi, pol);
-}
-
-u16 eeprom_readw(struct eeprom *ee, unsigned address)
-{
- unsigned i;
- u16 res = 0;
-
- eeprom_clk_lo(ee);
- eeprom_update(ee, ee->eesel, 1 ^ !!(ee->polarity & EEPOL_EESEL));
- eeprom_send_addr(ee, address);
-
- for (i=0; i<16; i++) {
- u32 data;
- eeprom_clk_hi(ee);
- res <<= 1;
- data = readl(ee->addr);
-//printk("eeprom_readw: %08x\n", data);
- res |= !!(data & ee->eedo) ^ !!(ee->polarity & EEPOL_EEDO);
- eeprom_clk_lo(ee);
- }
- eeprom_update(ee, ee->eesel, 0 ^ !!(ee->polarity & EEPOL_EESEL));
-
- return res;
-}
-
-
-void eeprom_writeb(struct eeprom *ee, unsigned address, u8 data)
-{
-}