This patch lets preprocessor conditionals (#ifdef) related to
WILC_SDIO_IRQ_GPIO to compile out the entire functions. Compiling out
the entire functions is preferred rather than portions of functions or
expressions becausue doing so makes code harder to read.
Signed-off-by: Tony Cho <tony....@atmel.com>
---
V2: Remove the warnings on the following:
- ERROR: space required before the open parenthesis '('
This patch is resent because unexpected warning is added while rewriting
codes.
---
drivers/staging/wilc1000/wilc_sdio.c | 480 +++++++++++++++++++++--------------
1 file changed, 292 insertions(+), 188 deletions(-)
diff --git a/drivers/staging/wilc1000/wilc_sdio.c
b/drivers/staging/wilc1000/wilc_sdio.c
index 5a18148..c52044a 100644
--- a/drivers/staging/wilc1000/wilc_sdio.c
+++ b/drivers/staging/wilc1000/wilc_sdio.c
@@ -155,22 +155,9 @@ _fail_:
return 0;
}
+#ifdef WILC_SDIO_IRQ_GPIO
static int sdio_clear_int(void)
{
-#ifndef WILC_SDIO_IRQ_GPIO
- /* uint32_t sts; */
- sdio_cmd52_t cmd;
-
- cmd.read_write = 0;
- cmd.function = 1;
- cmd.raw = 0;
- cmd.address = 0x4;
- cmd.data = 0;
- g_sdio.sdio_cmd52(&cmd);
- int_clrd++;
-
- return cmd.data;
-#else
uint32_t reg;
if (!sdio_read_reg(WILC_HOST_RX_CTRL_0, ®)) {
@@ -181,9 +168,23 @@ static int sdio_clear_int(void)
sdio_write_reg(WILC_HOST_RX_CTRL_0, reg);
int_clrd++;
return 1;
-#endif
+}
+#else
+static int sdio_clear_int(void)
+{
+ sdio_cmd52_t cmd;
+
+ cmd.read_write = 0;
+ cmd.function = 1;
+ cmd.raw = 0;
+ cmd.address = 0x4;
+ cmd.data = 0;
+ g_sdio.sdio_cmd52(&cmd);
+ int_clrd++;
+ return cmd.data;
}
+#endif /* WILC_SDIO_IRQ_GPIO */
uint32_t sdio_xfer_cnt(void)
{
@@ -521,9 +522,11 @@ static int sdio_deinit(void *pv)
return 1;
}
+#ifdef WILC_SDIO_IRQ_GPIO
static int sdio_sync(void)
{
uint32_t reg;
+ int ret;
/**
* Disable power sequencer
@@ -539,45 +542,60 @@ static int sdio_sync(void)
return 0;
}
-#ifdef WILC_SDIO_IRQ_GPIO
- {
- uint32_t reg;
- int ret;
+ /**
+ * interrupt pin mux select
+ **/
+ ret = sdio_read_reg(WILC_PIN_MUX_0, ®);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg (%08x)...\n",
WILC_PIN_MUX_0);
+ return 0;
+ }
+ reg |= (1 << 8);
+ ret = sdio_write_reg(WILC_PIN_MUX_0, reg);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc spi]: Failed write reg
(%08x)...\n", WILC_PIN_MUX_0);
+ return 0;
+ }
- /**
- * interrupt pin mux select
- **/
- ret = sdio_read_reg(WILC_PIN_MUX_0, ®);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg
(%08x)...\n", WILC_PIN_MUX_0);
- return 0;
- }
- reg |= (1 << 8);
- ret = sdio_write_reg(WILC_PIN_MUX_0, reg);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc spi]: Failed write reg
(%08x)...\n", WILC_PIN_MUX_0);
- return 0;
- }
+ /**
+ * interrupt enable
+ **/
+ ret = sdio_read_reg(WILC_INTR_ENABLE, ®);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg (%08x)...\n",
WILC_INTR_ENABLE);
+ return 0;
+ }
+ reg |= (1 << 16);
+ ret = sdio_write_reg(WILC_INTR_ENABLE, reg);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc spi]: Failed write reg
(%08x)...\n", WILC_INTR_ENABLE);
+ return 0;
+ }
- /**
- * interrupt enable
- **/
- ret = sdio_read_reg(WILC_INTR_ENABLE, ®);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc spi]: Failed read reg
(%08x)...\n", WILC_INTR_ENABLE);
- return 0;
- }
- reg |= (1 << 16);
- ret = sdio_write_reg(WILC_INTR_ENABLE, reg);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc spi]: Failed write reg
(%08x)...\n", WILC_INTR_ENABLE);
- return 0;
- }
+ return 1;
+}
+#else
+static int sdio_sync(void)
+{
+ uint32_t reg;
+
+ /**
+ * Disable power sequencer
+ **/
+ if (!sdio_read_reg(WILC_MISC, ®)) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read misc reg...\n");
+ return 0;
+ }
+
+ reg &= ~(1 << 8);
+ if (!sdio_write_reg(WILC_MISC, reg)) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write misc reg...\n");
+ return 0;
}
-#endif
return 1;
}
+#endif /* WILC_SDIO_IRQ_GPIO */
static int sdio_init(wilc_wlan_inp_t *inp, wilc_debug_func func)
{
@@ -744,18 +762,40 @@ static int sdio_read_size(uint32_t *size)
return 1;
}
+#ifdef WILC_SDIO_IRQ_GPIO
static int sdio_read_int(uint32_t *int_status)
{
+ uint32_t tmp;
+ sdio_cmd52_t cmd;
+ uint32_t irq_flags;
+
+ sdio_read_size(&tmp);
+
+ cmd.read_write = 0;
+ cmd.function = 0;
+ cmd.raw = 0;
+ cmd.address = 0xf7;
+ cmd.data = 0;
+ g_sdio.sdio_cmd52(&cmd);
+ irq_flags = cmd.data & 0x1f;
+ tmp |= ((irq_flags >> 0) << IRG_FLAGS_OFFSET);
+
+ *int_status = tmp;
+ return 1;
+}
+#else
+static int sdio_read_int(uint32_t *int_status)
+{
uint32_t tmp;
sdio_cmd52_t cmd;
+ int i;
sdio_read_size(&tmp);
/**
* Read IRQ flags
**/
-#ifndef WILC_SDIO_IRQ_GPIO
/* cmd.read_write = 0; */
cmd.function = 1;
/* cmd.raw = 0; */
@@ -775,54 +815,29 @@ static int sdio_read_int(uint32_t *int_status)
tmp |= INT_4;
if (cmd.data & (1 << 6))
tmp |= INT_5;
- {
- int i;
- for (i = g_sdio.nint; i < MAX_NUM_INT; i++) {
- if ((tmp >> (IRG_FLAGS_OFFSET + i)) & 0x1) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Unexpected
interrupt (1) : tmp=%x, data=%x\n", tmp, cmd.data);
- break;
- }
+ for (i = g_sdio.nint; i < MAX_NUM_INT; i++) {
+ if ((tmp >> (IRG_FLAGS_OFFSET + i)) & 0x1) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Unexpected interrupt
(1) : tmp=%x, data=%x\n", tmp, cmd.data);
+ break;
}
}
-#else
- {
- uint32_t irq_flags;
-
- cmd.read_write = 0;
- cmd.function = 0;
- cmd.raw = 0;
- cmd.address = 0xf7;
- cmd.data = 0;
- g_sdio.sdio_cmd52(&cmd);
- irq_flags = cmd.data & 0x1f;
- tmp |= ((irq_flags >> 0) << IRG_FLAGS_OFFSET);
- }
-
-#endif
*int_status = tmp;
return 1;
}
+#endif /* WILC_SDIO_IRQ_GPIO */
+#ifdef WILC_SDIO_IRQ_GPIO
static int sdio_clear_int_ext(uint32_t val)
{
int ret;
- if (g_sdio.has_thrpt_enh3) {
+ if(g_sdio.has_thrpt_enh3) {
uint32_t reg;
+ reg = val & ((1 << MAX_NUN_INT_THRPT_ENH2) - 1);
-#ifdef WILC_SDIO_IRQ_GPIO
- {
- uint32_t flags;
-
- flags = val & ((1 << MAX_NUN_INT_THRPT_ENH2) - 1);
- reg = flags;
- }
-#else
- reg = 0;
-#endif
/* select VMM table 0 */
if ((val & SEL_VMM_TBL0) == SEL_VMM_TBL0)
reg |= (1 << 5);
@@ -849,76 +864,135 @@ static int sdio_clear_int_ext(uint32_t val)
}
} else {
-#ifdef WILC_SDIO_IRQ_GPIO
- {
- /* see below. has_thrpt_enh2 uses register 0xf8 to
clear interrupts. */
- /* Cannot clear multiple interrupts. Must clear each
interrupt individually */
- uint32_t flags;
-
- flags = val & ((1 << MAX_NUM_INT) - 1);
- if (flags) {
- int i;
-
- ret = 1;
- for (i = 0; i < g_sdio.nint; i++) {
- if (flags & 1) {
- sdio_cmd52_t cmd;
-
- cmd.read_write = 1;
- cmd.function = 0;
- cmd.raw = 0;
- cmd.address = 0xf8;
- cmd.data = (1 << i);
-
- ret = g_sdio.sdio_cmd52(&cmd);
- if (!ret) {
- g_sdio.dPrint(N_ERR,
"[wilc sdio]: Failed cmd52, set 0xf8 data (%d) ...\n", __LINE__);
- goto _fail_;
- }
-
+ /* see below. has_thrpt_enh2 uses register 0xf8 to clear
interrupts. */
+ /* Cannot clear multiple interrupts. Must clear each interrupt
individually */
+ uint32_t flags;
+ uint32_t vmm_ctl;
+
+ flags = val & ((1 << MAX_NUM_INT) - 1);
+ if (flags) {
+ int i;
+
+ ret = 1;
+ for (i = 0; i < g_sdio.nint; i++) {
+ if (flags & 1) {
+ sdio_cmd52_t cmd;
+
+ cmd.read_write = 1;
+ cmd.function = 0;
+ cmd.raw = 0;
+ cmd.address = 0xf8;
+ cmd.data = (1 << i);
+
+ ret = g_sdio.sdio_cmd52(&cmd);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc
sdio]: Failed cmd52, set 0xf8 data (%d) ...\n", __LINE__);
+ goto _fail_;
}
- if (!ret)
- break;
- flags >>= 1;
}
if (!ret)
- goto _fail_;
- for (i = g_sdio.nint; i < MAX_NUM_INT; i++) {
- if (flags & 1)
- g_sdio.dPrint(N_ERR, "[wilc
sdio]: Unexpected interrupt cleared %d...\n", i);
- flags >>= 1;
- }
+ break;
+ flags >>= 1;
+ }
+ if (!ret)
+ goto _fail_;
+ for (i = g_sdio.nint; i < MAX_NUM_INT; i++) {
+ if (flags & 1)
+ g_sdio.dPrint(N_ERR, "[wilc sdio]:
Unexpected interrupt cleared %d...\n", i);
+ flags >>= 1;
}
}
-#endif /* WILC_SDIO_IRQ_GPIO */
- {
- uint32_t vmm_ctl;
-
- vmm_ctl = 0;
- /* select VMM table 0 */
- if ((val & SEL_VMM_TBL0) == SEL_VMM_TBL0)
- vmm_ctl |= (1 << 0);
- /* select VMM table 1 */
- if ((val & SEL_VMM_TBL1) == SEL_VMM_TBL1)
- vmm_ctl |= (1 << 1);
- /* enable VMM */
- if ((val & EN_VMM) == EN_VMM)
- vmm_ctl |= (1 << 2);
-
- if (vmm_ctl) {
- sdio_cmd52_t cmd;
-
- cmd.read_write = 1;
- cmd.function = 0;
- cmd.raw = 0;
- cmd.address = 0xf6;
- cmd.data = vmm_ctl;
- ret = g_sdio.sdio_cmd52(&cmd);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]:
Failed cmd52, set 0xf6 data (%d) ...\n", __LINE__);
- goto _fail_;
- }
+ vmm_ctl = 0;
+ /* select VMM table 0 */
+ if ((val & SEL_VMM_TBL0) == SEL_VMM_TBL0)
+ vmm_ctl |= (1 << 0);
+ /* select VMM table 1 */
+ if ((val & SEL_VMM_TBL1) == SEL_VMM_TBL1)
+ vmm_ctl |= (1 << 1);
+ /* enable VMM */
+ if ((val & EN_VMM) == EN_VMM)
+ vmm_ctl |= (1 << 2);
+
+ if (vmm_ctl) {
+ sdio_cmd52_t cmd;
+
+ cmd.read_write = 1;
+ cmd.function = 0;
+ cmd.raw = 0;
+ cmd.address = 0xf6;
+ cmd.data = vmm_ctl;
+ ret = g_sdio.sdio_cmd52(&cmd);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed
cmd52, set 0xf6 data (%d) ...\n", __LINE__);
+ goto _fail_;
+ }
+ }
+ }
+
+ return 1;
+_fail_:
+ return 0;
+}
+#else
+static int sdio_clear_int_ext(uint32_t val)
+{
+ int ret;
+
+ if (g_sdio.has_thrpt_enh3) {
+ uint32_t reg = 0;
+
+ /* select VMM table 0 */
+ if ((val & SEL_VMM_TBL0) == SEL_VMM_TBL0)
+ reg |= (1 << 5);
+ /* select VMM table 1 */
+ if ((val & SEL_VMM_TBL1) == SEL_VMM_TBL1)
+ reg |= (1 << 6);
+ /* enable VMM */
+ if ((val & EN_VMM) == EN_VMM)
+ reg |= (1 << 7);
+ if (reg) {
+ sdio_cmd52_t cmd;
+
+ cmd.read_write = 1;
+ cmd.function = 0;
+ cmd.raw = 0;
+ cmd.address = 0xf8;
+ cmd.data = reg;
+
+ ret = g_sdio.sdio_cmd52(&cmd);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed
cmd52, set 0xf8 data (%d) ...\n", __LINE__);
+ goto _fail_;
+ }
+
+ }
+ } else {
+ uint32_t vmm_ctl;
+
+ vmm_ctl = 0;
+ /* select VMM table 0 */
+ if ((val & SEL_VMM_TBL0) == SEL_VMM_TBL0)
+ vmm_ctl |= (1 << 0);
+ /* select VMM table 1 */
+ if ((val & SEL_VMM_TBL1) == SEL_VMM_TBL1)
+ vmm_ctl |= (1 << 1);
+ /* enable VMM */
+ if ((val & EN_VMM) == EN_VMM)
+ vmm_ctl |= (1 << 2);
+
+ if (vmm_ctl) {
+ sdio_cmd52_t cmd;
+
+ cmd.read_write = 1;
+ cmd.function = 0;
+ cmd.raw = 0;
+ cmd.address = 0xf6;
+ cmd.data = vmm_ctl;
+ ret = g_sdio.sdio_cmd52(&cmd);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed
cmd52, set 0xf6 data (%d) ...\n", __LINE__);
+ goto _fail_;
}
}
}
@@ -927,10 +1001,13 @@ static int sdio_clear_int_ext(uint32_t val)
_fail_:
return 0;
}
+#endif /* WILC_SDIO_IRQ_GPIO */
+#ifdef WILC_SDIO_IRQ_GPIO
static int sdio_sync_ext(int nint /* how mant interrupts to enable. */)
{
uint32_t reg;
+ int ret, i;
if (nint > MAX_NUM_INT) {
g_sdio.dPrint(N_ERR, "[wilc sdio]: Too many interupts
(%d)...\n", nint);
@@ -957,62 +1034,89 @@ static int sdio_sync_ext(int nint /* how mant
interrupts to enable. */)
return 0;
}
-#ifdef WILC_SDIO_IRQ_GPIO
- {
- uint32_t reg;
- int ret, i;
+ /**
+ * interrupt pin mux select
+ **/
+ ret = sdio_read_reg(WILC_PIN_MUX_0, ®);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg
(%08x)...\n", WILC_PIN_MUX_0);
+ return 0;
+ }
+ reg |= (1 << 8);
+ ret = sdio_write_reg(WILC_PIN_MUX_0, reg);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg
(%08x)...\n", WILC_PIN_MUX_0);
+ return 0;
+ }
- /**
- * interrupt pin mux select
- **/
- ret = sdio_read_reg(WILC_PIN_MUX_0, ®);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg
(%08x)...\n", WILC_PIN_MUX_0);
- return 0;
- }
- reg |= (1 << 8);
- ret = sdio_write_reg(WILC_PIN_MUX_0, reg);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg
(%08x)...\n", WILC_PIN_MUX_0);
- return 0;
- }
+ /**
+ * interrupt enable
+ **/
+ ret = sdio_read_reg(WILC_INTR_ENABLE, ®);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg
(%08x)...\n", WILC_INTR_ENABLE);
+ return 0;
+ }
- /**
- * interrupt enable
- **/
- ret = sdio_read_reg(WILC_INTR_ENABLE, ®);
+ for (i = 0; (i < 5) && (nint > 0); i++, nint--)
+ reg |= (1 << (27 + i));
+ ret = sdio_write_reg(WILC_INTR_ENABLE, reg);
+ if (!ret) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg
(%08x)...\n", WILC_INTR_ENABLE);
+ return 0;
+ }
+ if (nint) {
+ ret = sdio_read_reg(WILC_INTR2_ENABLE, ®);
if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg
(%08x)...\n", WILC_INTR_ENABLE);
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read reg
(%08x)...\n", WILC_INTR2_ENABLE);
return 0;
}
- for (i = 0; (i < 5) && (nint > 0); i++, nint--)
- reg |= (1 << (27 + i));
- ret = sdio_write_reg(WILC_INTR_ENABLE, reg);
+ for (i = 0; (i < 3) && (nint > 0); i++, nint--)
+ reg |= (1 << i);
+
+ ret = sdio_read_reg(WILC_INTR2_ENABLE, ®);
if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg
(%08x)...\n", WILC_INTR_ENABLE);
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write reg
(%08x)...\n", WILC_INTR2_ENABLE);
return 0;
}
- if (nint) {
- ret = sdio_read_reg(WILC_INTR2_ENABLE, ®);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read
reg (%08x)...\n", WILC_INTR2_ENABLE);
- return 0;
- }
+ }
- for (i = 0; (i < 3) && (nint > 0); i++, nint--)
- reg |= (1 << i);
+ return 1;
+}
+#else
+static int sdio_sync_ext(int nint /* how mant interrupts to enable. */)
+{
+ uint32_t reg;
- ret = sdio_read_reg(WILC_INTR2_ENABLE, ®);
- if (!ret) {
- g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write
reg (%08x)...\n", WILC_INTR2_ENABLE);
- return 0;
- }
- }
+ if (nint > MAX_NUM_INT) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Too many interupts
(%d)...\n", nint);
+ return 0;
}
-#endif /* WILC_SDIO_IRQ_GPIO */
+ if (nint > MAX_NUN_INT_THRPT_ENH2) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Error: Cannot support more
than 5 interrupts when has_thrpt_enh2=1.\n");
+ return 0;
+ }
+
+ g_sdio.nint = nint;
+
+ /**
+ * Disable power sequencer
+ **/
+ if (!sdio_read_reg(WILC_MISC, ®)) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed read misc reg...\n");
+ return 0;
+ }
+
+ reg &= ~(1 << 8);
+ if (!sdio_write_reg(WILC_MISC, reg)) {
+ g_sdio.dPrint(N_ERR, "[wilc sdio]: Failed write misc reg...\n");
+ return 0;
+ }
+
return 1;
}
+#endif /* WILC_SDIO_IRQ_GPIO */
/********************************************
*
--
1.9.1
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