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wl1271: Use vmalloc to allocate memory for firmware

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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>
This commit is contained in:
Juuso Oikarinen
2009-10-08 21:56:32 +03:00
committed by John W. Linville
parent c87dec9f18
commit 1fba49741d
2 changed files with 15 additions and 6 deletions
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16
drivers/net/wireless/wl12xx/wl1271_boot.c
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@@ -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;
}