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Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-2.6

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This commit is contained in:
David S. Miller 2009-08-28 23:04:57 -07:00
commit ab1f5e49f8
1 changed files with 67 additions and 53 deletions
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120
drivers/net/wireless/ipw2x00/ipw2200.c
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@ -2874,45 +2874,27 @@ static int ipw_fw_dma_add_command_block(struct ipw_priv *priv,
return 0;
}
static int ipw_fw_dma_add_buffer(struct ipw_priv *priv,
u32 src_phys, u32 dest_address, u32 length)
static int ipw_fw_dma_add_buffer(struct ipw_priv *priv, dma_addr_t *src_address,
int nr, u32 dest_address, u32 len)
{
u32 bytes_left = length;
u32 src_offset = 0;
u32 dest_offset = 0;
int status = 0;
int ret, i;
u32 size;
IPW_DEBUG_FW(">> \n");
IPW_DEBUG_FW_INFO("src_phys=0x%x dest_address=0x%x length=0x%x\n",
src_phys, dest_address, length);
while (bytes_left > CB_MAX_LENGTH) {
status = ipw_fw_dma_add_command_block(priv,
src_phys + src_offset,
dest_address +
dest_offset,
CB_MAX_LENGTH, 0, 0);
if (status) {
IPW_DEBUG_FW_INFO("nr=%d dest_address=0x%x len=0x%x\n",
nr, dest_address, len);
for (i = 0; i < nr; i++) {
size = min_t(u32, len - i * CB_MAX_LENGTH, CB_MAX_LENGTH);
ret = ipw_fw_dma_add_command_block(priv, src_address[i],
dest_address +
i * CB_MAX_LENGTH, size,
0, 0);
if (ret) {
IPW_DEBUG_FW_INFO(": Failed\n");
return -1;
} else
IPW_DEBUG_FW_INFO(": Added new cb\n");
src_offset += CB_MAX_LENGTH;
dest_offset += CB_MAX_LENGTH;
bytes_left -= CB_MAX_LENGTH;
}
/* add the buffer tail */
if (bytes_left > 0) {
status =
ipw_fw_dma_add_command_block(priv, src_phys + src_offset,
dest_address + dest_offset,
bytes_left, 0, 0);
if (status) {
IPW_DEBUG_FW_INFO(": Failed on the buffer tail\n");
return -1;
} else
IPW_DEBUG_FW_INFO
(": Adding new cb - the buffer tail\n");
}
IPW_DEBUG_FW("<< \n");
@ -3160,59 +3142,91 @@ static int ipw_load_ucode(struct ipw_priv *priv, u8 * data, size_t len)
static int ipw_load_firmware(struct ipw_priv *priv, u8 * data, size_t len)
{
int rc = -1;
int ret = -1;
int offset = 0;
struct fw_chunk *chunk;
dma_addr_t shared_phys;
u8 *shared_virt;
int total_nr = 0;
int i;
struct pci_pool *pool;
u32 *virts[CB_NUMBER_OF_ELEMENTS_SMALL];
dma_addr_t phys[CB_NUMBER_OF_ELEMENTS_SMALL];
IPW_DEBUG_TRACE("<< : \n");
shared_virt = pci_alloc_consistent(priv->pci_dev, len, &shared_phys);
if (!shared_virt)
pool = pci_pool_create("ipw2200", priv->pci_dev, CB_MAX_LENGTH, 0, 0);
if (!pool) {
IPW_ERROR("pci_pool_create failed\n");
return -ENOMEM;
memmove(shared_virt, data, len);
}
/* Start the Dma */
rc = ipw_fw_dma_enable(priv);
ret = ipw_fw_dma_enable(priv);
/* the DMA is already ready this would be a bug. */
BUG_ON(priv->sram_desc.last_cb_index > 0);
do {
u32 chunk_len;
u8 *start;
int size;
int nr = 0;
chunk = (struct fw_chunk *)(data + offset);
offset += sizeof(struct fw_chunk);
chunk_len = le32_to_cpu(chunk->length);
start = data + offset;
nr = (chunk_len + CB_MAX_LENGTH - 1) / CB_MAX_LENGTH;
for (i = 0; i < nr; i++) {
virts[total_nr] = pci_pool_alloc(pool, GFP_KERNEL,
&phys[total_nr]);
if (!virts[total_nr]) {
ret = -ENOMEM;
goto out;
}
size = min_t(u32, chunk_len - i * CB_MAX_LENGTH,
CB_MAX_LENGTH);
memcpy(virts[total_nr], start, size);
start += size;
total_nr++;
/* We don't support fw chunk larger than 64*8K */
BUG_ON(total_nr > CB_NUMBER_OF_ELEMENTS_SMALL);
}
/* build DMA packet and queue up for sending */
/* dma to chunk->address, the chunk->length bytes from data +
* offeset*/
/* Dma loading */
rc = ipw_fw_dma_add_buffer(priv, shared_phys + offset,
le32_to_cpu(chunk->address),
le32_to_cpu(chunk->length));
if (rc) {
ret = ipw_fw_dma_add_buffer(priv, &phys[total_nr - nr],
nr, le32_to_cpu(chunk->address),
chunk_len);
if (ret) {
IPW_DEBUG_INFO("dmaAddBuffer Failed\n");
goto out;
}
offset += le32_to_cpu(chunk->length);
offset += chunk_len;
} while (offset < len);
/* Run the DMA and wait for the answer */
rc = ipw_fw_dma_kick(priv);
if (rc) {
ret = ipw_fw_dma_kick(priv);
if (ret) {
IPW_ERROR("dmaKick Failed\n");
goto out;
}
rc = ipw_fw_dma_wait(priv);
if (rc) {
ret = ipw_fw_dma_wait(priv);
if (ret) {
IPW_ERROR("dmaWaitSync Failed\n");
goto out;
}
out:
pci_free_consistent(priv->pci_dev, len, shared_virt, shared_phys);
return rc;
out:
for (i = 0; i < total_nr; i++)
pci_pool_free(pool, virts[i], phys[i]);
pci_pool_destroy(pool);
return ret;
}
/* stop nic */