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authorBrian Rogers <brian_rogers@comcast.net>2008-10-13 08:37:06 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2008-10-13 09:57:34 -0200
commitba340b40a5f65261731583f67d7ec8cafbf5cfaa (patch)
treeb62243ecb18ccf1d38b60e5919e8ab7eeaa7d6f4 /drivers/media/video
parentfa405d7094489828014315a34f0c21fba30be38c (diff)
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.c42
-rw-r--r--drivers/media/video/saa7134/saa7134-cards.c1
-rw-r--r--drivers/media/video/saa7134/saa7134-i2c.c1
-rw-r--r--drivers/media/video/saa7134/saa7134-input.c52
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 703195a5ad4..efe849981ab 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 c9392c4e92f..ddc5402c5fb 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 b02965c5247..20c1b33caf7 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 72a1c67a8c3..c53fd5f9f6b 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;