diff options
author | Adrian Bunk <bunk@stusta.de> | 2005-11-05 20:01:47 +0100 |
---|---|---|
committer | John W. Linville <linville@tuxdriver.com> | 2005-11-07 21:50:00 -0500 |
commit | 48888cc6120ff945675ef79a3ba2955afa0f5124 (patch) | |
tree | f204efafbe99dab92fe25896e98862922aa408d5 /include/linux/eeprom.h | |
parent | 8e3babcd69ec0fde874838e276eb0b211c6a5647 (diff) |
[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.h | 136 |
1 files changed, 0 insertions, 136 deletions
diff --git a/include/linux/eeprom.h b/include/linux/eeprom.h deleted file mode 100644 index 38afd9da1df..00000000000 --- 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) -{ -} |