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wlcore: spi: use private max-buf-size limit

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Limit SPI transmissions to the wl12xx max buffer size, as only 12xx was
tested with SPI.

This allows us to remove the global aggregation buffer constant.

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Luciano Coelho <luca@coelho.fi>
This commit is contained in:
Arik Nemtsov 2012-08-06 11:21:39 +03:00 committed by Luciano Coelho
parent e166de556f
commit 61932ba59f
2 changed files with 8 additions and 4 deletions
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10
drivers/net/wireless/ti/wlcore/spi.c
View File

@ -66,7 +66,13 @@
/* HW limitation: maximum possible chunk size is 4095 bytes */
#define WSPI_MAX_CHUNK_SIZE 4092
#define WSPI_MAX_NUM_OF_CHUNKS (WL1271_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
/*
* only support SPI for 12xx - this code should be reworked when 18xx
* support is introduced
*/
#define SPI_AGGR_BUFFER_SIZE (4 * PAGE_SIZE)
#define WSPI_MAX_NUM_OF_CHUNKS (SPI_AGGR_BUFFER_SIZE / WSPI_MAX_CHUNK_SIZE)
struct wl12xx_spi_glue {
struct device *dev;
@ -271,7 +277,7 @@ static int __must_check wl12xx_spi_raw_write(struct device *child, int addr,
u32 chunk_len;
int i;
WARN_ON(len > WL1271_AGGR_BUFFER_SIZE);
WARN_ON(len > SPI_AGGR_BUFFER_SIZE);
spi_message_init(&m);
memset(t, 0, sizeof(t));

2
drivers/net/wireless/ti/wlcore/wlcore_i.h
View File

@ -83,8 +83,6 @@
#define WL1271_AP_BSS_INDEX 0
#define WL1271_AP_DEF_BEACON_EXP 20
#define WL1271_AGGR_BUFFER_SIZE (5 * PAGE_SIZE)
enum wlcore_state {
WLCORE_STATE_OFF,
WLCORE_STATE_RESTARTING,