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ath6kl: change bmi sizes being configurable by HIF 

SDIO and USB have different maximum sizes for BMI commands so make that
configurable.

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
This commit is contained in:
Kalle Valo 2011-11-11 12:17:42 +02:00
parent 66b693c3b8
commit 1f4c894d3a
4 changed files with 30 additions and 25 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

46
drivers/net/wireless/ath/ath6kl/bmi.c
View File

@ -117,8 +117,8 @@ int ath6kl_bmi_read(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
return -EACCES;
}
size = BMI_DATASZ_MAX + sizeof(cid) + sizeof(addr) + sizeof(len);
if (size > MAX_BMI_CMDBUF_SZ) {
size = ar->bmi.max_data_size + sizeof(cid) + sizeof(addr) + sizeof(len);
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -131,8 +131,8 @@ int ath6kl_bmi_read(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
len_remain = len;
while (len_remain) {
rx_len = (len_remain < BMI_DATASZ_MAX) ?
len_remain : BMI_DATASZ_MAX;
rx_len = (len_remain < ar->bmi.max_data_size) ?
len_remain : ar->bmi.max_data_size;
offset = 0;
memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
offset += sizeof(cid);
@ -167,7 +167,7 @@ int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
u32 offset;
u32 len_remain, tx_len;
const u32 header = sizeof(cid) + sizeof(addr) + sizeof(len);
u8 aligned_buf[BMI_DATASZ_MAX];
u8 aligned_buf[400];
u8 *src;
if (ar->bmi.done_sent) {
@ -175,12 +175,15 @@ int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
return -EACCES;
}
if ((BMI_DATASZ_MAX + header) > MAX_BMI_CMDBUF_SZ) {
if ((ar->bmi.max_data_size + header) > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
memset(ar->bmi.cmd_buf, 0, BMI_DATASZ_MAX + header);
if (WARN_ON(ar->bmi.max_data_size > sizeof(aligned_buf)))
return -E2BIG;
memset(ar->bmi.cmd_buf, 0, ar->bmi.max_data_size + header);
ath6kl_dbg(ATH6KL_DBG_BMI,
"bmi write memory: addr: 0x%x, len: %d\n", addr, len);
@ -189,7 +192,7 @@ int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
while (len_remain) {
src = &buf[len - len_remain];
if (len_remain < (BMI_DATASZ_MAX - header)) {
if (len_remain < (ar->bmi.max_data_size - header)) {
if (len_remain & 3) {
/* align it with 4 bytes */
len_remain = len_remain +
@ -199,7 +202,7 @@ int ath6kl_bmi_write(struct ath6kl *ar, u32 addr, u8 *buf, u32 len)
}
tx_len = len_remain;
} else {
tx_len = (BMI_DATASZ_MAX - header);
tx_len = (ar->bmi.max_data_size - header);
}
offset = 0;
@ -237,7 +240,7 @@ int ath6kl_bmi_execute(struct ath6kl *ar, u32 addr, u32 *param)
}
size = sizeof(cid) + sizeof(addr) + sizeof(param);
if (size > MAX_BMI_CMDBUF_SZ) {
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -284,7 +287,7 @@ int ath6kl_bmi_set_app_start(struct ath6kl *ar, u32 addr)
}
size = sizeof(cid) + sizeof(addr);
if (size > MAX_BMI_CMDBUF_SZ) {
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -320,7 +323,7 @@ int ath6kl_bmi_reg_read(struct ath6kl *ar, u32 addr, u32 *param)
}
size = sizeof(cid) + sizeof(addr);
if (size > MAX_BMI_CMDBUF_SZ) {
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -363,7 +366,7 @@ int ath6kl_bmi_reg_write(struct ath6kl *ar, u32 addr, u32 param)
}
size = sizeof(cid) + sizeof(addr) + sizeof(param);
if (size > MAX_BMI_CMDBUF_SZ) {
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -404,8 +407,8 @@ int ath6kl_bmi_lz_data(struct ath6kl *ar, u8 *buf, u32 len)
return -EACCES;
}
size = BMI_DATASZ_MAX + header;
if (size > MAX_BMI_CMDBUF_SZ) {
size = ar->bmi.max_data_size + header;
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -416,8 +419,8 @@ int ath6kl_bmi_lz_data(struct ath6kl *ar, u8 *buf, u32 len)
len_remain = len;
while (len_remain) {
tx_len = (len_remain < (BMI_DATASZ_MAX - header)) ?
len_remain : (BMI_DATASZ_MAX - header);
tx_len = (len_remain < (ar->bmi.max_data_size - header)) ?
len_remain : (ar->bmi.max_data_size - header);
offset = 0;
memcpy(&(ar->bmi.cmd_buf[offset]), &cid, sizeof(cid));
@ -454,7 +457,7 @@ int ath6kl_bmi_lz_stream_start(struct ath6kl *ar, u32 addr)
}
size = sizeof(cid) + sizeof(addr);
if (size > MAX_BMI_CMDBUF_SZ) {
if (size > ar->bmi.max_cmd_size) {
WARN_ON(1);
return -EINVAL;
}
@ -518,8 +521,13 @@ void ath6kl_bmi_reset(struct ath6kl *ar)
int ath6kl_bmi_init(struct ath6kl *ar)
{
ar->bmi.cmd_buf = kzalloc(MAX_BMI_CMDBUF_SZ, GFP_ATOMIC);
if (WARN_ON(ar->bmi.max_data_size == 0))
return -EINVAL;
/* cmd + addr + len + data_size */
ar->bmi.max_cmd_size = ar->bmi.max_data_size + (sizeof(u32) * 3);
ar->bmi.cmd_buf = kzalloc(ar->bmi.max_cmd_size, GFP_ATOMIC);
if (!ar->bmi.cmd_buf)
return -ENOMEM;

6
drivers/net/wireless/ath/ath6kl/bmi.h
View File

@ -44,12 +44,6 @@
* BMI handles all required Target-side cache flushing.
*/
#define MAX_BMI_CMDBUF_SZ (BMI_DATASZ_MAX + \
(sizeof(u32) * 3 /* cmd + addr + len */))
/* Maximum data size used for BMI transfers */
#define BMI_DATASZ_MAX 256
/* BMI Commands */
#define BMI_NO_COMMAND 0

2
drivers/net/wireless/ath/ath6kl/core.h
View File

@ -272,6 +272,8 @@ struct ath6kl_bmi {
u32 cmd_credits;
bool done_sent;
u8 *cmd_buf;
u32 max_data_size;
u32 max_cmd_size;
};
struct target_stats {

1
drivers/net/wireless/ath/ath6kl/sdio.c
View File

@ -1139,6 +1139,7 @@ static int ath6kl_sdio_probe(struct sdio_func *func,
ar_sdio->ar = ar;
ar->hif_priv = ar_sdio;
ar->hif_ops = &ath6kl_sdio_ops;
ar->bmi.max_data_size = 256;
ath6kl_sdio_set_mbox_info(ar);