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path: root/drivers/media/usb/em28xx/em28xx-input.c
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Diffstat (limited to 'drivers/media/usb/em28xx/em28xx-input.c')
-rw-r--r--drivers/media/usb/em28xx/em28xx-input.c183
1 files changed, 130 insertions, 53 deletions
diff --git a/drivers/media/usb/em28xx/em28xx-input.c b/drivers/media/usb/em28xx/em28xx-input.c
index 660bf803c9e4..07f6030d7455 100644
--- a/drivers/media/usb/em28xx/em28xx-input.c
+++ b/drivers/media/usb/em28xx/em28xx-input.c
@@ -57,8 +57,8 @@ MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]");
struct em28xx_ir_poll_result {
unsigned int toggle_bit:1;
unsigned int read_count:7;
- u8 rc_address;
- u8 rc_data[4]; /* 1 byte on em2860/2880, 4 on em2874 */
+
+ u32 scancode;
};
struct em28xx_IR {
@@ -72,6 +72,7 @@ struct em28xx_IR {
struct delayed_work work;
unsigned int full_code:1;
unsigned int last_readcount;
+ u64 rc_type;
int (*get_key)(struct em28xx_IR *, struct em28xx_ir_poll_result *);
};
@@ -236,11 +237,8 @@ static int default_polling_getkey(struct em28xx_IR *ir,
/* Infrared read count (Reg 0x45[6:0] */
poll_result->read_count = (msg[0] & 0x7f);
- /* Remote Control Address (Reg 0x46) */
- poll_result->rc_address = msg[1];
-
- /* Remote Control Data (Reg 0x47) */
- poll_result->rc_data[0] = msg[2];
+ /* Remote Control Address/Data (Regs 0x46/0x47) */
+ poll_result->scancode = msg[1] << 8 | msg[2];
return 0;
}
@@ -266,13 +264,35 @@ static int em2874_polling_getkey(struct em28xx_IR *ir,
/* Infrared read count (Reg 0x51[6:0] */
poll_result->read_count = (msg[0] & 0x7f);
- /* Remote Control Address (Reg 0x52) */
- poll_result->rc_address = msg[1];
-
- /* Remote Control Data (Reg 0x53-55) */
- poll_result->rc_data[0] = msg[2];
- poll_result->rc_data[1] = msg[3];
- poll_result->rc_data[2] = msg[4];
+ /*
+ * Remote Control Address (Reg 0x52)
+ * Remote Control Data (Reg 0x53-0x55)
+ */
+ switch (ir->rc_type) {
+ case RC_BIT_RC5:
+ poll_result->scancode = msg[1] << 8 | msg[2];
+ break;
+ case RC_BIT_NEC:
+ if ((msg[3] ^ msg[4]) != 0xff) /* 32 bits NEC */
+ poll_result->scancode = (msg[1] << 24) |
+ (msg[2] << 16) |
+ (msg[3] << 8) |
+ msg[4];
+ else if ((msg[1] ^ msg[2]) != 0xff) /* 24 bits NEC */
+ poll_result->scancode = (msg[1] << 16) |
+ (msg[2] << 8) |
+ msg[3];
+ else /* Normal NEC */
+ poll_result->scancode = msg[1] << 8 | msg[3];
+ break;
+ case RC_BIT_RC6_0:
+ poll_result->scancode = msg[1] << 8 | msg[2];
+ break;
+ default:
+ poll_result->scancode = (msg[1] << 24) | (msg[2] << 16) |
+ (msg[3] << 8) | msg[4];
+ break;
+ }
return 0;
}
@@ -294,17 +314,16 @@ static void em28xx_ir_handle_key(struct em28xx_IR *ir)
}
if (unlikely(poll_result.read_count != ir->last_readcount)) {
- dprintk("%s: toggle: %d, count: %d, key 0x%02x%02x\n", __func__,
+ dprintk("%s: toggle: %d, count: %d, key 0x%04x\n", __func__,
poll_result.toggle_bit, poll_result.read_count,
- poll_result.rc_address, poll_result.rc_data[0]);
+ poll_result.scancode);
if (ir->full_code)
rc_keydown(ir->rc,
- poll_result.rc_address << 8 |
- poll_result.rc_data[0],
+ poll_result.scancode,
poll_result.toggle_bit);
else
rc_keydown(ir->rc,
- poll_result.rc_data[0],
+ poll_result.scancode & 0xff,
poll_result.toggle_bit);
if (ir->dev->chip_id == CHIP_ID_EM2874 ||
@@ -345,49 +364,88 @@ static void em28xx_ir_stop(struct rc_dev *rc)
cancel_delayed_work_sync(&ir->work);
}
-static int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
+static int em2860_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
{
- int rc = 0;
struct em28xx_IR *ir = rc_dev->priv;
struct em28xx *dev = ir->dev;
- u8 ir_config = EM2874_IR_RC5;
-
- /* Adjust xclk based o IR table for RC5/NEC tables */
+ /* Adjust xclk based on IR table for RC5/NEC tables */
if (*rc_type & RC_BIT_RC5) {
dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE;
ir->full_code = 1;
*rc_type = RC_BIT_RC5;
} else if (*rc_type & RC_BIT_NEC) {
dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE;
- ir_config = EM2874_IR_NEC;
ir->full_code = 1;
*rc_type = RC_BIT_NEC;
- } else if (*rc_type != RC_BIT_UNKNOWN)
- rc = -EINVAL;
+ } else if (*rc_type & RC_BIT_UNKNOWN) {
+ *rc_type = RC_BIT_UNKNOWN;
+ } else {
+ *rc_type = ir->rc_type;
+ return -EINVAL;
+ }
+ em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk,
+ EM28XX_XCLK_IR_RC5_MODE);
+
+ ir->rc_type = *rc_type;
+
+ return 0;
+}
+
+static int em2874_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
+{
+ struct em28xx_IR *ir = rc_dev->priv;
+ struct em28xx *dev = ir->dev;
+ u8 ir_config = EM2874_IR_RC5;
+ /* Adjust xclk and set type based on IR table for RC5/NEC/RC6 tables */
+ if (*rc_type & RC_BIT_RC5) {
+ dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE;
+ ir->full_code = 1;
+ *rc_type = RC_BIT_RC5;
+ } else if (*rc_type & RC_BIT_NEC) {
+ dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE;
+ ir_config = EM2874_IR_NEC | EM2874_IR_NEC_NO_PARITY;
+ ir->full_code = 1;
+ *rc_type = RC_BIT_NEC;
+ } else if (*rc_type & RC_BIT_RC6_0) {
+ dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE;
+ ir_config = EM2874_IR_RC6_MODE_0;
+ ir->full_code = 1;
+ *rc_type = RC_BIT_RC6_0;
+ } else if (*rc_type & RC_BIT_UNKNOWN) {
+ *rc_type = RC_BIT_UNKNOWN;
+ } else {
+ *rc_type = ir->rc_type;
+ return -EINVAL;
+ }
+ em28xx_write_regs(dev, EM2874_R50_IR_CONFIG, &ir_config, 1);
em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk,
EM28XX_XCLK_IR_RC5_MODE);
+ ir->rc_type = *rc_type;
+
+ return 0;
+}
+static int em28xx_ir_change_protocol(struct rc_dev *rc_dev, u64 *rc_type)
+{
+ struct em28xx_IR *ir = rc_dev->priv;
+ struct em28xx *dev = ir->dev;
+
/* Setup the proper handler based on the chip */
switch (dev->chip_id) {
case CHIP_ID_EM2860:
case CHIP_ID_EM2883:
- ir->get_key = default_polling_getkey;
- break;
+ return em2860_ir_change_protocol(rc_dev, rc_type);
case CHIP_ID_EM2884:
case CHIP_ID_EM2874:
case CHIP_ID_EM28174:
- ir->get_key = em2874_polling_getkey;
- em28xx_write_regs(dev, EM2874_R50_IR_CONFIG, &ir_config, 1);
- break;
+ return em2874_ir_change_protocol(rc_dev, rc_type);
default:
printk("Unrecognized em28xx chip id 0x%02x: IR not supported\n",
dev->chip_id);
- rc = -EINVAL;
+ return -EINVAL;
}
-
- return rc;
}
static void em28xx_register_i2c_ir(struct em28xx *dev)
@@ -410,22 +468,23 @@ static void em28xx_register_i2c_ir(struct em28xx *dev)
case EM2820_BOARD_TERRATEC_CINERGY_250:
dev->init_data.ir_codes = RC_MAP_EM_TERRATEC;
dev->init_data.get_key = em28xx_get_key_terratec;
- dev->init_data.name = "i2c IR (EM28XX Terratec)";
+ dev->init_data.name = "Terratec Cinergy 200/250";
break;
case EM2820_BOARD_PINNACLE_USB_2:
dev->init_data.ir_codes = RC_MAP_PINNACLE_GREY;
dev->init_data.get_key = em28xx_get_key_pinnacle_usb_grey;
- dev->init_data.name = "i2c IR (EM28XX Pinnacle PCTV)";
+ dev->init_data.name = "Pinnacle USB2";
break;
case EM2820_BOARD_HAUPPAUGE_WINTV_USB_2:
dev->init_data.ir_codes = RC_MAP_HAUPPAUGE;
dev->init_data.get_key = em28xx_get_key_em_haup;
- dev->init_data.name = "i2c IR (EM2840 Hauppauge)";
+ dev->init_data.name = "WinTV USB2";
+ dev->init_data.type = RC_BIT_RC5;
break;
case EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE:
dev->init_data.ir_codes = RC_MAP_WINFAST_USBII_DELUXE;
dev->init_data.get_key = em28xx_get_key_winfast_usbii_deluxe;
- dev->init_data.name = "i2c IR (EM2820 Winfast TV USBII Deluxe)";
+ dev->init_data.name = "Winfast TV USBII Deluxe";
break;
}
@@ -528,6 +587,17 @@ static int em28xx_ir_init(struct em28xx *dev)
int err = -ENOMEM;
u64 rc_type;
+ if (dev->board.has_snapshot_button)
+ em28xx_register_snapshot_button(dev);
+
+ if (dev->board.has_ir_i2c) {
+ em28xx_register_i2c_ir(dev);
+#if defined(CONFIG_MODULES) && defined(MODULE)
+ request_module("ir-kbd-i2c");
+#endif
+ return 0;
+ }
+
if (dev->board.ir_codes == NULL) {
/* No remote control support */
em28xx_warn("Remote control support is not available for "
@@ -538,7 +608,7 @@ static int em28xx_ir_init(struct em28xx *dev)
ir = kzalloc(sizeof(*ir), GFP_KERNEL);
rc = rc_allocate_device();
if (!ir || !rc)
- goto err_out_free;
+ goto error;
/* record handles to ourself */
ir->dev = dev;
@@ -555,11 +625,28 @@ static int em28xx_ir_init(struct em28xx *dev)
rc->open = em28xx_ir_start;
rc->close = em28xx_ir_stop;
+ switch (dev->chip_id) {
+ case CHIP_ID_EM2860:
+ case CHIP_ID_EM2883:
+ rc->allowed_protos = RC_BIT_RC5 | RC_BIT_NEC;
+ ir->get_key = default_polling_getkey;
+ break;
+ case CHIP_ID_EM2884:
+ case CHIP_ID_EM2874:
+ case CHIP_ID_EM28174:
+ ir->get_key = em2874_polling_getkey;
+ rc->allowed_protos = RC_BIT_RC5 | RC_BIT_NEC | RC_BIT_RC6_0;
+ break;
+ default:
+ err = -ENODEV;
+ goto error;
+ }
+
/* By default, keep protocol field untouched */
rc_type = RC_BIT_UNKNOWN;
err = em28xx_ir_change_protocol(rc, &rc_type);
if (err)
- goto err_out_free;
+ goto error;
/* This is how often we ask the chip for IR information */
ir->polling = 100; /* ms */
@@ -584,22 +671,12 @@ static int em28xx_ir_init(struct em28xx *dev)
/* all done */
err = rc_register_device(rc);
if (err)
- goto err_out_stop;
-
- em28xx_register_i2c_ir(dev);
-
-#if defined(CONFIG_MODULES) && defined(MODULE)
- if (dev->board.has_ir_i2c)
- request_module("ir-kbd-i2c");
-#endif
- if (dev->board.has_snapshot_button)
- em28xx_register_snapshot_button(dev);
+ goto error;
return 0;
- err_out_stop:
+error:
dev->ir = NULL;
- err_out_free:
rc_free_device(rc);
kfree(ir);
return err;
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-14 06:20:28 +0300