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libertas: Switch to using a callback function pointer for commands 

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
David Woodhouse 2007-12-07 15:13:05 +00:00 committed by David S. Miller
parent 0856e6816b
commit 1723047d67
3 changed files with 34 additions and 21 deletions
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31
drivers/net/wireless/libertas/cmd.c
View File

@ -1659,7 +1659,8 @@ static void cleanup_cmdnode(struct cmd_ctrl_node *ptempnode)
wake_up_interruptible(&ptempnode->cmdwait_q);
ptempnode->wait_option = 0;
ptempnode->pdata_buf = NULL;
ptempnode->pdata_size = 0;
ptempnode->pdata_size = NULL;
ptempnode->callback = NULL;
if (ptempnode->bufvirtualaddr != NULL)
memset(ptempnode->bufvirtualaddr, 0, MRVDRV_SIZE_OF_CMD_BUFFER);
@ -1687,7 +1688,8 @@ void lbs_set_cmd_ctrl_node(struct lbs_private *priv,
ptempnode->wait_option = wait_option;
ptempnode->pdata_buf = pdata_buf;
ptempnode->pdata_size = 0;
ptempnode->pdata_size = NULL;
ptempnode->callback = NULL;
lbs_deb_leave(LBS_DEB_HOST);
}
@ -2012,10 +2014,26 @@ void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode)
* @return -1 in case of a higher level error, otherwise
* the result code from the firmware
*/
int lbs_cmd(struct lbs_private *priv,
u16 command,
void *cmd, int cmd_size,
void *rsp, int *rsp_size)
static int lbs_cmd_callback(uint16_t respcmd, struct cmd_ds_command *resp, struct lbs_private *priv)
{
struct cmd_ds_gen *r = (struct cmd_ds_gen *)resp;
struct lbs_adapter *adapter = priv->adapter;
u16 sz = cpu_to_le16(resp->size) - S_DS_GEN;
if (sz > *adapter->cur_cmd->pdata_size) {
lbs_pr_err("response 0x%04x doesn't fit into buffer (%d > %d)\n",
respcmd, sz, *adapter->cur_cmd->pdata_size);
sz = *adapter->cur_cmd->pdata_size;
}
memcpy(adapter->cur_cmd->pdata_buf, r->cmdresp, sz);
*adapter->cur_cmd->pdata_size = sz;
return 0;
}
int lbs_cmd(struct lbs_private *priv, u16 command, void *cmd, int cmd_size,
void *rsp, int *rsp_size)
{
struct lbs_adapter *adapter = priv->adapter;
struct cmd_ctrl_node *cmdnode;
@ -2053,6 +2071,7 @@ int lbs_cmd(struct lbs_private *priv,
cmdnode->wait_option = CMD_OPTION_WAITFORRSP;
cmdnode->pdata_buf = rsp;
cmdnode->pdata_size = rsp_size;
cmdnode->callback = lbs_cmd_callback;
/* Set sequence number, clean result, move to buffer */
adapter->seqnum++;

23
drivers/net/wireless/libertas/cmdresp.c
View File

@ -880,22 +880,15 @@ int lbs_process_rx_command(struct lbs_private *priv)
goto done;
}
if (adapter->cur_cmd->pdata_size) {
struct cmd_ds_gen *r = (struct cmd_ds_gen *)resp;
u16 sz = cpu_to_le16(resp->size) - S_DS_GEN;
if (sz > *adapter->cur_cmd->pdata_size) {
lbs_pr_err("response 0x%04x doesn't fit into "
"buffer (%d > %d)\n", respcmd,
sz, *adapter->cur_cmd->pdata_size);
sz = *adapter->cur_cmd->pdata_size;
}
memcpy(adapter->cur_cmd->pdata_buf, r->cmdresp, sz);
*adapter->cur_cmd->pdata_size = sz;
} else {
spin_unlock_irqrestore(&adapter->driver_lock, flags);
spin_unlock_irqrestore(&adapter->driver_lock, flags);
if (adapter->cur_cmd && adapter->cur_cmd->callback)
ret = adapter->cur_cmd->callback(respcmd, resp, priv);
else
ret = handle_cmd_response(respcmd, resp, priv);
spin_lock_irqsave(&adapter->driver_lock, flags);
}
spin_lock_irqsave(&adapter->driver_lock, flags);
if (adapter->cur_cmd) {
/* Clean up and Put current command back to cmdfreeq */
__lbs_cleanup_and_insert_cmd(priv, adapter->cur_cmd);

1
drivers/net/wireless/libertas/hostcmd.h
View File

@ -72,6 +72,7 @@ struct cmd_ctrl_node {
/* command response */
void *pdata_buf;
int *pdata_size;
int (*callback)(uint16_t respcmd, struct cmd_ds_command *resp, struct lbs_private *priv);
/* command data */
u8 *bufvirtualaddr;
/* wait queue */