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authorJuuso Oikarinen <juuso.oikarinen@nokia.com>2009-10-08 22:56:32 +0400
committerJohn W. Linville <linville@tuxdriver.com>2009-10-27 23:47:53 +0300
commit1fba49741dc50d13d2fe6cf04f5a547e6c5c81f6 (patch)
tree1d7909c9350478512c599f950116b0552a7c33f1 /drivers/net/wireless/wl12xx/wl1271_boot.c
parentc87dec9f189b884df215756e285b9281cf065206 (diff)
downloadlinux-1fba49741dc50d13d2fe6cf04f5a547e6c5c81f6.tar.xz
wl1271: Use vmalloc to allocate memory for firmware
Use vmalloc to allocate memory for the firmware image, and use a smaller linear buffer for the actual transfer of the firmware to the chipset. This patch is an adaptation of a similar patch for wl1251 by Kalle Valo. Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com> Reviewed-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: Luciano Coelho <luciano.coelho@nokia.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/wl12xx/wl1271_boot.c')
-rw-r--r--drivers/net/wireless/wl12xx/wl1271_boot.c16
1 files changed, 12 insertions, 4 deletions
diff --git a/drivers/net/wireless/wl12xx/wl1271_boot.c b/drivers/net/wireless/wl12xx/wl1271_boot.c
index 8228ef474a7e..7640313c45c1 100644
--- a/drivers/net/wireless/wl12xx/wl1271_boot.c
+++ b/drivers/net/wireless/wl12xx/wl1271_boot.c
@@ -94,7 +94,7 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
size_t fw_data_len, u32 dest)
{
int addr, chunk_num, partition_limit;
- u8 *p;
+ u8 *p, *chunk;
/* whal_FwCtrl_LoadFwImageSm() */
@@ -103,12 +103,17 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
wl1271_debug(DEBUG_BOOT, "fw_data_len %zd chunk_size %d",
fw_data_len, CHUNK_SIZE);
-
if ((fw_data_len % 4) != 0) {
wl1271_error("firmware length not multiple of four");
return -EIO;
}
+ chunk = kmalloc(CHUNK_SIZE, GFP_KERNEL);
+ if (!buf) {
+ wl1271_error("allocation for firmware upload chunk failed");
+ return -ENOMEM;
+ }
+
wl1271_set_partition(wl, dest,
part_table[PART_DOWN].mem.size,
part_table[PART_DOWN].reg.start,
@@ -137,9 +142,10 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
/* 10.3 upload the chunk */
addr = dest + chunk_num * CHUNK_SIZE;
p = buf + chunk_num * CHUNK_SIZE;
+ memcpy(chunk, p, CHUNK_SIZE);
wl1271_debug(DEBUG_BOOT, "uploading fw chunk 0x%p to 0x%x",
p, addr);
- wl1271_spi_mem_write(wl, addr, p, CHUNK_SIZE);
+ wl1271_spi_mem_write(wl, addr, chunk, CHUNK_SIZE);
chunk_num++;
}
@@ -147,10 +153,12 @@ static int wl1271_boot_upload_firmware_chunk(struct wl1271 *wl, void *buf,
/* 10.4 upload the last chunk */
addr = dest + chunk_num * CHUNK_SIZE;
p = buf + chunk_num * CHUNK_SIZE;
+ memcpy(chunk, p, fw_data_len % CHUNK_SIZE);
wl1271_debug(DEBUG_BOOT, "uploading fw last chunk (%zd B) 0x%p to 0x%x",
fw_data_len % CHUNK_SIZE, p, addr);
- wl1271_spi_mem_write(wl, addr, p, fw_data_len % CHUNK_SIZE);
+ wl1271_spi_mem_write(wl, addr, chunk, fw_data_len % CHUNK_SIZE);
+ kfree(chunk);
return 0;
}