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wl12xx: Add support for block reading from a fixed register address 

Add support for block reading (multiple bytes) from a fixed chipset
register address. This is required for the wl1271 TX data path.

Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com>
Signed-off-by: Kalle Valo <kalle.valo@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Juuso Oikarinen 2009-06-12 14:16:00 +03:00 committed by John W. Linville
parent 9f2ad4fb52
commit 8ec8beb283
2 changed files with 14 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/net/wireless/wl12xx/spi.c
View File

@ -301,7 +301,7 @@ void wl12xx_spi_read(struct wl12xx *wl, int addr, void *buf,
}
void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf,
size_t len)
size_t len, bool fixed)
{
struct spi_transfer t[2];
struct spi_message m;
@ -314,6 +314,9 @@ void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf,
*cmd |= (len << WSPI_CMD_BYTE_LENGTH_OFFSET) & WSPI_CMD_BYTE_LENGTH;
*cmd |= addr & WSPI_CMD_BYTE_ADDR;
if (fixed)
*cmd |= WSPI_CMD_FIXED;
spi_message_init(&m);
memset(t, 0, sizeof(t));
@ -348,7 +351,7 @@ void wl12xx_spi_mem_write(struct wl12xx *wl, int addr, void *buf,
physical = wl12xx_translate_mem_addr(wl, addr);
wl12xx_spi_write(wl, physical, buf, len);
wl12xx_spi_write(wl, physical, buf, len, false);
}
void wl12xx_spi_reg_read(struct wl12xx *wl, int addr, void *buf, size_t len,
@ -361,13 +364,14 @@ void wl12xx_spi_reg_read(struct wl12xx *wl, int addr, void *buf, size_t len,
wl12xx_spi_read(wl, physical, buf, len, fixed);
}
void wl12xx_spi_reg_write(struct wl12xx *wl, int addr, void *buf, size_t len)
void wl12xx_spi_reg_write(struct wl12xx *wl, int addr, void *buf, size_t len,
bool fixed)
{
int physical;
physical = wl12xx_translate_reg_addr(wl, addr);
wl12xx_spi_write(wl, physical, buf, len);
wl12xx_spi_write(wl, physical, buf, len, fixed);
}
u32 wl12xx_mem_read32(struct wl12xx *wl, int addr)

9
drivers/net/wireless/wl12xx/spi.h
View File

@ -71,7 +71,8 @@
/* Raw target IO, address is not translated */
void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf, size_t len);
void wl12xx_spi_write(struct wl12xx *wl, int addr, void *buf,
size_t len, bool fixed);
void wl12xx_spi_read(struct wl12xx *wl, int addr, void *buf,
size_t len, bool fixed);
@ -84,7 +85,8 @@ void wl12xx_mem_write32(struct wl12xx *wl, int addr, u32 val);
/* Registers IO */
void wl12xx_spi_reg_read(struct wl12xx *wl, int addr, void *buf, size_t len,
bool fixed);
void wl12xx_spi_reg_write(struct wl12xx *wl, int addr, void *buf,size_t len);
void wl12xx_spi_reg_write(struct wl12xx *wl, int addr, void *buf, size_t len,
bool fixed);
u32 wl12xx_reg_read32(struct wl12xx *wl, int addr);
void wl12xx_reg_write32(struct wl12xx *wl, int addr, u32 val);
@ -106,7 +108,8 @@ static inline u32 wl12xx_read32(struct wl12xx *wl, int addr)
static inline void wl12xx_write32(struct wl12xx *wl, int addr, u32 val)
{
wl->buffer_32 = val;
wl12xx_spi_write(wl, addr, &wl->buffer_32, sizeof(wl->buffer_32));
wl12xx_spi_write(wl, addr, &wl->buffer_32,
sizeof(wl->buffer_32), false);
}
#endif /* __WL12XX_SPI_H__ */