diff options
| author | Dan Williams <dcbw@redhat.com> | 2007-12-11 12:40:35 -0500 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-28 15:06:41 -0800 |
| commit | a8bdcd71fd33e4a919f9f0cb32207c644b70853f (patch) | |
| tree | f1c3d008e5d830800302fcb0b5ef189980e1eee2 /drivers/net/wireless/libertas | |
| parent | 7ad994dec7d36c319cb35cbf3a920d3bda96e6b0 (diff) | |
libertas: add simple copyback command callback
A simple callback which copies the response back into the
command buffer that was used to send the command to the
card. Will allow for direct command processing outside
the mega-switches in cmd.c and cmdresp.c.
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/libertas')
| -rw-r--r-- | drivers/net/wireless/libertas/cmd.c | 29 | ||||
| -rw-r--r-- | drivers/net/wireless/libertas/cmd.h | 7 |
2 files changed, 35 insertions, 1 deletions
diff --git a/drivers/net/wireless/libertas/cmd.c b/drivers/net/wireless/libertas/cmd.c index 78870c77042..c4b32a05de1 100644 --- a/drivers/net/wireless/libertas/cmd.c +++ b/drivers/net/wireless/libertas/cmd.c @@ -1972,6 +1972,34 @@ void lbs_ps_confirm_sleep(struct lbs_private *priv, u16 psmode) /** + * @brief Simple callback that copies response back into command + * + * @param priv A pointer to struct lbs_private structure + * @param extra A pointer to the original command structure for which + * 'resp' is a response + * @param resp A pointer to the command response + * + * @return 0 on success, error on failure + */ +int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra, + struct cmd_header *resp) +{ + struct cmd_header *buf = (void *)extra; + uint16_t copy_len; + + lbs_deb_enter(LBS_DEB_CMD); + + copy_len = min(le16_to_cpu(buf->size), le16_to_cpu(resp->size)); + lbs_deb_cmd("Copying back %u bytes; command response was %u bytes, " + "copy back buffer was %u bytes", copy_len, resp->size, + buf->size); + memcpy(buf, resp, copy_len); + + lbs_deb_leave(LBS_DEB_CMD); + return 0; +} + +/** * @brief Simple way to call firmware functions * * @param priv A pointer to struct lbs_private structure @@ -1987,7 +2015,6 @@ 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, uint16_t command, struct cmd_header *in_cmd, int in_cmd_size, int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *), diff --git a/drivers/net/wireless/libertas/cmd.h b/drivers/net/wireless/libertas/cmd.h index 259d3e87193..72857a1a248 100644 --- a/drivers/net/wireless/libertas/cmd.h +++ b/drivers/net/wireless/libertas/cmd.h @@ -10,9 +10,16 @@ __lbs_cmd(priv, cmdnr, (struct cmd_header *) &cmd, sizeof(cmd), \ callback, callback_arg) +#define lbs_cmd_with_response(priv, cmdnr, cmd) \ + __lbs_cmd(priv, cmdnr, (struct cmd_header *) &cmd, sizeof(cmd), \ + lbs_cmd_copyback, (unsigned long) &cmd) + int __lbs_cmd(struct lbs_private *priv, uint16_t command, struct cmd_header *in_cmd, int in_cmd_size, int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *), unsigned long callback_arg); +int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra, + struct cmd_header *resp); + #endif /* _LBS_CMD_H */ |