diff options
Diffstat (limited to 'drivers/net/wireless/ath/carl9170/cmd.h')
| -rw-r--r-- | drivers/net/wireless/ath/carl9170/cmd.h | 51 |
1 files changed, 28 insertions, 23 deletions
diff --git a/drivers/net/wireless/ath/carl9170/cmd.h b/drivers/net/wireless/ath/carl9170/cmd.h index f78728c38294..568174c71b94 100644 --- a/drivers/net/wireless/ath/carl9170/cmd.h +++ b/drivers/net/wireless/ath/carl9170/cmd.h @@ -116,8 +116,9 @@ __regwrite_out : \ } while (0); -#define carl9170_async_get_buf() \ +#define carl9170_async_regwrite_get_buf() \ do { \ + __nreg = 0; \ __cmd = carl9170_cmd_buf(__carl, CARL9170_CMD_WREG_ASYNC, \ CARL9170_MAX_CMD_PAYLOAD_LEN); \ if (__cmd == NULL) { \ @@ -128,38 +129,42 @@ do { \ #define carl9170_async_regwrite_begin(carl) \ do { \ - int __nreg = 0, __err = 0; \ struct ar9170 *__carl = carl; \ struct carl9170_cmd *__cmd; \ - carl9170_async_get_buf(); \ + unsigned int __nreg; \ + int __err = 0; \ + carl9170_async_regwrite_get_buf(); \ + +#define carl9170_async_regwrite_flush() \ +do { \ + if (__cmd == NULL || __nreg == 0) \ + break; \ + \ + if (IS_ACCEPTING_CMD(__carl) && __nreg) { \ + __cmd->hdr.len = 8 * __nreg; \ + __err = __carl9170_exec_cmd(__carl, __cmd, true); \ + __cmd = NULL; \ + break; \ + } \ + goto __async_regwrite_out; \ +} while (0) #define carl9170_async_regwrite(r, v) do { \ + if (__cmd == NULL) \ + carl9170_async_regwrite_get_buf(); \ __cmd->wreg.regs[__nreg].addr = cpu_to_le32(r); \ __cmd->wreg.regs[__nreg].val = cpu_to_le32(v); \ __nreg++; \ - if ((__nreg >= PAYLOAD_MAX/2)) { \ - if (IS_ACCEPTING_CMD(__carl)) { \ - __cmd->hdr.len = 8 * __nreg; \ - __err = __carl9170_exec_cmd(__carl, __cmd, true);\ - __cmd = NULL; \ - carl9170_async_get_buf(); \ - } else { \ - goto __async_regwrite_out; \ - } \ - __nreg = 0; \ - if (__err) \ - goto __async_regwrite_out; \ - } \ + if ((__nreg >= PAYLOAD_MAX / 2)) \ + carl9170_async_regwrite_flush(); \ } while (0) -#define carl9170_async_regwrite_finish() \ +#define carl9170_async_regwrite_finish() do { \ __async_regwrite_out : \ - if (__err == 0 && __nreg) { \ - __cmd->hdr.len = 8 * __nreg; \ - if (IS_ACCEPTING_CMD(__carl)) \ - __err = __carl9170_exec_cmd(__carl, __cmd, true);\ - __nreg = 0; \ - } + if (__cmd != NULL && __err == 0) \ + carl9170_async_regwrite_flush(); \ + kfree(__cmd); \ +} while (0) \ #define carl9170_async_regwrite_result() \ __err; \ |