diff options
author | Brian Rogers <brian_rogers@comcast.net> | 2008-10-13 11:37:06 (GMT) |
---|---|---|
committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2008-10-13 11:57:34 (GMT) |
commit | ba340b40a5f65261731583f67d7ec8cafbf5cfaa (patch) | |
tree | b62243ecb18ccf1d38b60e5919e8ab7eeaa7d6f4 /drivers/media/video | |
parent | fa405d7094489828014315a34f0c21fba30be38c (diff) | |
download | linux-ba340b40a5f65261731583f67d7ec8cafbf5cfaa.tar.xz |
V4L/DVB (9168): Add support for MSI TV@nywhere Plus remote
The IR controller has a couple quirks. It won't respond until some other
device on the bus is probed. To work around that, probe 0x50 first.
Then, since it won't respond to a zero-byte read, probe with a one-byte
read.
Signed-off-by: Brian Rogers <brian_rogers@comcast.net>
[mchehab.redhat.com: Fix merge conflicts and remove an unused var]
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video')
-rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 42 | ||||
-rw-r--r-- | drivers/media/video/saa7134/saa7134-cards.c | 1 | ||||
-rw-r--r-- | drivers/media/video/saa7134/saa7134-i2c.c | 1 | ||||
-rw-r--r-- | drivers/media/video/saa7134/saa7134-input.c | 52 |
4 files changed, 94 insertions, 2 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index 703195a..efe8499 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -12,6 +12,10 @@ * Markus Rechberger <mrechberger@gmail.com> * modified for DViCO Fusion HDTV 5 RT GOLD by * Chaogui Zhang <czhang1974@gmail.com> + * modified for MSI TV@nywhere Plus by + * Henry Wong <henry@stuffedcow.net> + * Mark Schultz <n9xmj@yahoo.com> + * Brian Rogers <brian_rogers@comcast.net> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -242,9 +246,15 @@ static void ir_timer(unsigned long data) static void ir_work(struct work_struct *work) { struct IR_i2c *ir = container_of(work, struct IR_i2c, work); + int polling_interval = 100; + + /* MSI TV@nywhere Plus requires more frequent polling + otherwise it will miss some keypresses */ + if (ir->c.adapter->id == I2C_HW_SAA7134 && ir->c.addr == 0x30) + polling_interval = 50; ir_key_poll(ir); - mod_timer(&ir->timer, jiffies + msecs_to_jiffies(100)); + mod_timer(&ir->timer, jiffies + msecs_to_jiffies(polling_interval)); } /* ----------------------------------------------------------------------- */ @@ -483,9 +493,37 @@ static int ir_probe(struct i2c_adapter *adap) (1 == rc) ? "yes" : "no"); if (1 == rc) { ir_attach(adap, probe[i], 0, 0); - break; + return 0; } } + + /* Special case for MSI TV@nywhere Plus remote */ + if (adap->id == I2C_HW_SAA7134) { + u8 temp; + + /* MSI TV@nywhere Plus controller doesn't seem to + respond to probes unless we read something from + an existing device. Weird... */ + + msg.addr = 0x50; + rc = i2c_transfer(adap, &msg, 1); + dprintk(1, "probe 0x%02x @ %s: %s\n", + msg.addr, adap->name, + (1 == rc) ? "yes" : "no"); + + /* Now do the probe. The controller does not respond + to 0-byte reads, so we use a 1-byte read instead. */ + msg.addr = 0x30; + msg.len = 1; + msg.buf = &temp; + rc = i2c_transfer(adap, &msg, 1); + dprintk(1, "probe 0x%02x @ %s: %s\n", + msg.addr, adap->name, + (1 == rc) ? "yes" : "no"); + if (1 == rc) + ir_attach(adap, msg.addr, 0, 0); + } + return 0; } diff --git a/drivers/media/video/saa7134/saa7134-cards.c b/drivers/media/video/saa7134/saa7134-cards.c index c9392c4..ddc5402 100644 --- a/drivers/media/video/saa7134/saa7134-cards.c +++ b/drivers/media/video/saa7134/saa7134-cards.c @@ -5969,6 +5969,7 @@ int saa7134_board_init1(struct saa7134_dev *dev) case SAA7134_BOARD_PINNACLE_PCTV_110i: case SAA7134_BOARD_PINNACLE_PCTV_310i: case SAA7134_BOARD_UPMOST_PURPLE_TV: + case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS: case SAA7134_BOARD_HAUPPAUGE_HVR1110: case SAA7134_BOARD_BEHOLD_607_9FM: case SAA7134_BOARD_BEHOLD_M6: diff --git a/drivers/media/video/saa7134/saa7134-i2c.c b/drivers/media/video/saa7134/saa7134-i2c.c index b02965c..20c1b33 100644 --- a/drivers/media/video/saa7134/saa7134-i2c.c +++ b/drivers/media/video/saa7134/saa7134-i2c.c @@ -337,6 +337,7 @@ static int attach_inform(struct i2c_client *client) case 0x47: case 0x71: case 0x2d: + case 0x30: { struct IR_i2c *ir = i2c_get_clientdata(client); d1printk("%s i2c IR detected (%s).\n", diff --git a/drivers/media/video/saa7134/saa7134-input.c b/drivers/media/video/saa7134/saa7134-input.c index 72a1c67..c53fd5f 100644 --- a/drivers/media/video/saa7134/saa7134-input.c +++ b/drivers/media/video/saa7134/saa7134-input.c @@ -118,6 +118,53 @@ static int build_key(struct saa7134_dev *dev) /* --------------------- Chip specific I2C key builders ----------------- */ +static int get_key_msi_tvanywhere_plus(struct IR_i2c *ir, u32 *ir_key, + u32 *ir_raw) +{ + unsigned char b; + int gpio; + + /* <dev> is needed to access GPIO. Used by the saa_readl macro. */ + struct saa7134_dev *dev = ir->c.adapter->algo_data; + if (dev == NULL) { + dprintk("get_key_msi_tvanywhere_plus: " + "gir->c.adapter->algo_data is NULL!\n"); + return -EIO; + } + + /* rising SAA7134_GPIO_GPRESCAN reads the status */ + + saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN); + saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN); + + gpio = saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2); + + /* GPIO&0x40 is pulsed low when a button is pressed. Don't do + I2C receive if gpio&0x40 is not low. */ + + if (gpio & 0x40) + return 0; /* No button press */ + + /* GPIO says there is a button press. Get it. */ + + if (1 != i2c_master_recv(&ir->c, &b, 1)) { + i2cdprintk("read error\n"); + return -EIO; + } + + /* No button press */ + + if (b == 0xff) + return 0; + + /* Button pressed */ + + dprintk("get_key_msi_tvanywhere_plus: Key = 0x%02X\n", b); + *ir_key = b; + *ir_raw = b; + return 1; +} + static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char b; @@ -641,6 +688,11 @@ void saa7134_set_i2c_ir(struct saa7134_dev *dev, struct IR_i2c *ir) ir->get_key = get_key_purpletv; ir->ir_codes = ir_codes_purpletv; break; + case SAA7134_BOARD_MSI_TVATANYWHERE_PLUS: + snprintf(ir->c.name, sizeof(ir->c.name), "MSI TV@nywhere Plus"); + ir->get_key = get_key_msi_tvanywhere_plus; + ir->ir_codes = ir_codes_msi_tvanywhere_plus; + break; case SAA7134_BOARD_HAUPPAUGE_HVR1110: snprintf(ir->c.name, sizeof(ir->c.name), "HVR 1110"); ir->get_key = get_key_hvr1110; |