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path: root/drivers/media/pci/cx88/cx88-input.c
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Diffstat (limited to 'drivers/media/pci/cx88/cx88-input.c')
-rw-r--r--drivers/media/pci/cx88/cx88-input.c45
1 files changed, 26 insertions, 19 deletions
diff --git a/drivers/media/pci/cx88/cx88-input.c b/drivers/media/pci/cx88/cx88-input.c
index c072b7ecc8d6..dcfea3502e42 100644
--- a/drivers/media/pci/cx88/cx88-input.c
+++ b/drivers/media/pci/cx88/cx88-input.c
@@ -62,11 +62,15 @@ static int ir_debug;
module_param(ir_debug, int, 0644); /* debug level [IR] */
MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
-#define ir_dprintk(fmt, arg...) if (ir_debug) \
- printk(KERN_DEBUG "%s IR: " fmt, ir->core->name, ##arg)
+#define ir_dprintk(fmt, arg...) do { \
+ if (ir_debug) \
+ printk(KERN_DEBUG "%s IR: " fmt, ir->core->name, ##arg);\
+} while (0)
-#define dprintk(fmt, arg...) if (ir_debug) \
- printk(KERN_DEBUG "cx88 IR: " fmt, ##arg)
+#define dprintk(fmt, arg...) do { \
+ if (ir_debug) \
+ printk(KERN_DEBUG "cx88 IR: " fmt, ##arg); \
+} while (0)
/* ---------------------------------------------------------------------- */
@@ -79,16 +83,17 @@ static void cx88_ir_handle_key(struct cx88_IR *ir)
gpio = cx_read(ir->gpio_addr);
switch (core->boardnr) {
case CX88_BOARD_NPGTECH_REALTV_TOP10FM:
- /* This board apparently uses a combination of 2 GPIO
- to represent the keys. Additionally, the second GPIO
- can be used for parity.
-
- Example:
-
- for key "5"
- gpio = 0x758, auxgpio = 0xe5 or 0xf5
- for key "Power"
- gpio = 0x758, auxgpio = 0xed or 0xfd
+ /*
+ * This board apparently uses a combination of 2 GPIO
+ * to represent the keys. Additionally, the second GPIO
+ * can be used for parity.
+ *
+ * Example:
+ *
+ * for key "5"
+ * gpio = 0x758, auxgpio = 0xe5 or 0xf5
+ * for key "Power"
+ * gpio = 0x758, auxgpio = 0xed or 0xfd
*/
auxgpio = cx_read(MO_GP1_IO);
@@ -142,7 +147,7 @@ static void cx88_ir_handle_key(struct cx88_IR *ir)
if (0 == (gpio & ir->mask_keyup))
rc_keydown_notimeout(ir->dev, RC_TYPE_NECX, scancode,
- 0);
+ 0);
else
rc_keyup(ir->dev);
@@ -231,12 +236,14 @@ int cx88_ir_start(struct cx88_core *core)
return 0;
}
+EXPORT_SYMBOL(cx88_ir_start);
void cx88_ir_stop(struct cx88_core *core)
{
if (core->ir->users)
__cx88_ir_stop(core);
}
+EXPORT_SYMBOL(cx88_ir_stop);
static int cx88_ir_open(struct rc_dev *rc)
{
@@ -508,7 +515,7 @@ int cx88_ir_fini(struct cx88_core *core)
struct cx88_IR *ir = core->ir;
/* skip detach on non attached boards */
- if (ir == NULL)
+ if (!ir)
return 0;
cx88_ir_stop(core);
@@ -576,7 +583,7 @@ static int get_key_pvr2000(struct IR_i2c *ir, enum rc_type *protocol,
}
dprintk("IR Key/Flags: (0x%02x/0x%02x)\n",
- code & 0xff, flags & 0xff);
+ code & 0xff, flags & 0xff);
*protocol = RC_TYPE_UNKNOWN;
*scancode = code & 0xff;
@@ -636,8 +643,8 @@ void cx88_i2c_init_ir(struct cx88_core *core)
info.platform_data = &core->init_data;
}
if (i2c_smbus_xfer(&core->i2c_adap, *addrp, 0,
- I2C_SMBUS_READ, 0,
- I2C_SMBUS_QUICK, NULL) >= 0) {
+ I2C_SMBUS_READ, 0,
+ I2C_SMBUS_QUICK, NULL) >= 0) {
info.addr = *addrp;
i2c_new_device(&core->i2c_adap, &info);
break;