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authorIdo Yariv <ido@wizery.com>2012-06-18 15:50:21 +0300
committerLuciano Coelho <coelho@ti.com>2012-06-22 10:49:33 +0300
commit6134323f42b0dbae8e8206414d26cb167b9bedfc (patch)
tree2c8f89b23e8f38f66af6396f17a0c3c5b7561550 /drivers/net/wireless/ti/wl18xx/io.c
parenteb96f841b9563ba34969be25615548635728faf5 (diff)
wlcore: Propagate errors from wl1271_raw_read32
Propagate errors from wl1271_raw_read32. Since the read functions had no way of returning errors in-band, change their prototypes. Also rename prefixes of wlcore functions which their prototypes had to be changed. Signed-off-by: Ido Yariv <ido@wizery.com> Signed-off-by: Luciano Coelho <coelho@ti.com>
Diffstat (limited to 'drivers/net/wireless/ti/wl18xx/io.c')
-rw-r--r--drivers/net/wireless/ti/wl18xx/io.c35
1 files changed, 25 insertions, 10 deletions
diff --git a/drivers/net/wireless/ti/wl18xx/io.c b/drivers/net/wireless/ti/wl18xx/io.c
index 598c057e722b..92c2c03e4cd8 100644
--- a/drivers/net/wireless/ti/wl18xx/io.c
+++ b/drivers/net/wireless/ti/wl18xx/io.c
@@ -24,37 +24,52 @@
#include "io.h"
-void wl18xx_top_reg_write(struct wl1271 *wl, int addr, u16 val)
+int wl18xx_top_reg_write(struct wl1271 *wl, int addr, u16 val)
{
u32 tmp;
+ int ret;
if (WARN_ON(addr % 2))
- return;
+ return -EINVAL;
if ((addr % 4) == 0) {
- tmp = wl1271_read32(wl, addr);
+ ret = wlcore_read32(wl, addr, &tmp);
+ if (ret < 0)
+ goto out;
+
tmp = (tmp & 0xffff0000) | val;
wl1271_write32(wl, addr, tmp);
} else {
- tmp = wl1271_read32(wl, addr - 2);
+ ret = wlcore_read32(wl, addr - 2, &tmp);
+ if (ret < 0)
+ goto out;
+
tmp = (tmp & 0xffff) | (val << 16);
wl1271_write32(wl, addr - 2, tmp);
}
+
+out:
+ return ret;
}
-u16 wl18xx_top_reg_read(struct wl1271 *wl, int addr)
+int wl18xx_top_reg_read(struct wl1271 *wl, int addr, u16 *out)
{
u32 val;
+ int ret;
if (WARN_ON(addr % 2))
- return 0;
+ return -EINVAL;
if ((addr % 4) == 0) {
/* address is 4-bytes aligned */
- val = wl1271_read32(wl, addr);
- return val & 0xffff;
+ ret = wlcore_read32(wl, addr, &val);
+ if (ret >= 0 && out)
+ *out = val & 0xffff;
} else {
- val = wl1271_read32(wl, addr - 2);
- return (val & 0xffff0000) >> 16;
+ ret = wlcore_read32(wl, addr - 2, &val);
+ if (ret >= 0 && out)
+ *out = (val & 0xffff0000) >> 16;
}
+
+ return ret;
}