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media: cx88: add IR remote support for NotOnlyTV LV3H

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The PCI hybrid card NotOnlyTV LV3H has a built-in IR receiver connected
via I2C bus, currently not supported. This receiver is probably present
in more Geniatech cards. It has no capability for repeating when a key is
held down.

Add support for this built-in IR receiver. Use the existing Total Media
In Hand_02 remote keytable (Geniatech Mygica X8507) which matches exactly
the LV3H remote.

Signed-off-by: Daniel González Cabanelas <dgcbueu@gmail.com>
Signed-off-by: Marek Kidawski <mark_kiddy@wp.pl>
Signed-off-by: Sean Young <sean@mess.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
Daniel González Cabanelas 2022-02-07 15:51:41 +01:00 committed by Mauro Carvalho Chehab
parent 51e1440d30
commit 39dfd52d0f
4 changed files with 50 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

47
drivers/media/i2c/ir-kbd-i2c.c
View File

@ -238,6 +238,43 @@ static int get_key_knc1(struct IR_i2c *ir, enum rc_proto *protocol,
return 1;
}
static int get_key_geniatech(struct IR_i2c *ir, enum rc_proto *protocol,
u32 *scancode, u8 *toggle)
{
int i, rc;
unsigned char b;
/* poll IR chip */
for (i = 0; i < 4; i++) {
rc = i2c_master_recv(ir->c, &b, 1);
if (rc == 1)
break;
msleep(20);
}
if (rc != 1) {
dev_dbg(&ir->rc->dev, "read error\n");
if (rc < 0)
return rc;
return -EIO;
}
/* don't repeat the key */
if (ir->old == b)
return 0;
ir->old = b;
/* decode to RC5 */
b &= 0x7f;
b = (b - 1) / 2;
dev_dbg(&ir->rc->dev, "key %02x\n", b);
*protocol = RC_PROTO_RC5;
*scancode = b;
*toggle = ir->old >> 7;
return 1;
}
static int get_key_avermedia_cardbus(struct IR_i2c *ir, enum rc_proto *protocol,
u32 *scancode, u8 *toggle)
{
@ -766,6 +803,13 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
rc_proto = RC_PROTO_BIT_OTHER;
ir_codes = RC_MAP_EMPTY;
break;
case 0x33:
name = "Geniatech";
ir->get_key = get_key_geniatech;
rc_proto = RC_PROTO_BIT_RC5;
ir_codes = RC_MAP_TOTAL_MEDIA_IN_HAND_02;
ir->old = 0xfc;
break;
case 0x6b:
name = "FusionHDTV";
ir->get_key = get_key_fusionhdtv;
@ -825,6 +869,9 @@ static int ir_probe(struct i2c_client *client, const struct i2c_device_id *id)
case IR_KBD_GET_KEY_KNC1:
ir->get_key = get_key_knc1;
break;
case IR_KBD_GET_KEY_GENIATECH:
ir->get_key = get_key_geniatech;
break;
case IR_KBD_GET_KEY_FUSIONHDTV:
ir->get_key = get_key_fusionhdtv;
break;

2
drivers/media/pci/cx88/cx88-input.c
View File

@ -586,7 +586,7 @@ void cx88_i2c_init_ir(struct cx88_core *core)
{
struct i2c_board_info info;
static const unsigned short default_addr_list[] = {
0x18, 0x6b, 0x71,
0x18, 0x33, 0x6b, 0x71,
I2C_CLIENT_END
};
static const unsigned short pvr2000_addr_list[] = {

1
drivers/media/pci/cx88/cx88-video.c
View File

@ -1388,6 +1388,7 @@ static int cx8800_initdev(struct pci_dev *pci_dev,
}
fallthrough;
case CX88_BOARD_DVICO_FUSIONHDTV_5_PCI_NANO:
case CX88_BOARD_NOTONLYTV_LV3H:
request_module("ir-kbd-i2c");
}

1
include/media/i2c/ir-kbd-i2c.h
View File

@ -35,6 +35,7 @@ enum ir_kbd_get_key_fn {
IR_KBD_GET_KEY_PIXELVIEW,
IR_KBD_GET_KEY_HAUP,
IR_KBD_GET_KEY_KNC1,
IR_KBD_GET_KEY_GENIATECH,
IR_KBD_GET_KEY_FUSIONHDTV,
IR_KBD_GET_KEY_HAUP_XVR,
IR_KBD_GET_KEY_AVERMEDIA_CARDBUS,