Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git
[firefly-linux-kernel-4.4.55.git] / drivers / media / video / ir-kbd-i2c.c
index b0facaa40b2f5df75f33dd07d87c6f8fd56eecd7..740e543311af8c1930c8161332cc6a98395d8b59 100644 (file)
@@ -40,6 +40,7 @@
 #include <linux/i2c.h>
 #include <linux/workqueue.h>
 #include <asm/semaphore.h>
+
 #include <media/ir-common.h>
 #include <media/ir-kbd-i2c.h>
 
@@ -82,46 +83,6 @@ static IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE] = {
        [ 28 ] = KEY_MEDIA,             /* PC/TV */
 };
 
-static IR_KEYTAB_TYPE ir_codes_purpletv[IR_KEYTAB_SIZE] = {
-       [ 0x3  ] = KEY_POWER,
-       [ 0x6f ] = KEY_MUTE,
-       [ 0x10 ] = KEY_BACKSPACE,       /* Recall */
-
-       [ 0x11 ] = KEY_KP0,
-       [ 0x4  ] = KEY_KP1,
-       [ 0x5  ] = KEY_KP2,
-       [ 0x6  ] = KEY_KP3,
-       [ 0x8  ] = KEY_KP4,
-       [ 0x9  ] = KEY_KP5,
-       [ 0xa  ] = KEY_KP6,
-       [ 0xc  ] = KEY_KP7,
-       [ 0xd  ] = KEY_KP8,
-       [ 0xe  ] = KEY_KP9,
-       [ 0x12 ] = KEY_KPDOT,           /* 100+ */
-
-       [ 0x7  ] = KEY_VOLUMEUP,
-       [ 0xb  ] = KEY_VOLUMEDOWN,
-       [ 0x1a ] = KEY_KPPLUS,
-       [ 0x18 ] = KEY_KPMINUS,
-       [ 0x15 ] = KEY_UP,
-       [ 0x1d ] = KEY_DOWN,
-       [ 0xf  ] = KEY_CHANNELUP,
-       [ 0x13 ] = KEY_CHANNELDOWN,
-       [ 0x48 ] = KEY_ZOOM,
-
-       [ 0x1b ] = KEY_VIDEO,           /* Video source */
-       [ 0x49 ] = KEY_LANGUAGE,        /* MTS Select */
-       [ 0x19 ] = KEY_SEARCH,          /* Auto Scan */
-
-       [ 0x4b ] = KEY_RECORD,
-       [ 0x46 ] = KEY_PLAY,
-       [ 0x45 ] = KEY_PAUSE,           /* Pause */
-       [ 0x44 ] = KEY_STOP,
-       [ 0x40 ] = KEY_FORWARD,         /* Forward ? */
-       [ 0x42 ] = KEY_REWIND,          /* Backward ? */
-
-};
-
 /* ----------------------------------------------------------------------- */
 /* insmod parameters                                                       */
 
@@ -163,7 +124,7 @@ static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 
 static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 {
-        unsigned char b;
+       unsigned char b;
 
        /* poll IR chip */
        if (1 != i2c_master_recv(&ir->c,&b,1)) {
@@ -177,7 +138,7 @@ static int get_key_pixelview(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 
 static int get_key_pv951(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 {
-        unsigned char b;
+       unsigned char b;
 
        /* poll IR chip */
        if (1 != i2c_master_recv(&ir->c,&b,1)) {
@@ -223,28 +184,58 @@ static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
        return 1;
 }
 
-static int get_key_purpletv(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
+/* The new pinnacle PCTV remote (with the colored buttons)
+ *
+ * Ricardo Cerqueira <v4l@cerqueira.org>
+ */
+
+int get_key_pinnacle(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw)
 {
-        unsigned char b;
+       unsigned char b[4];
+       unsigned int start = 0,parity = 0,code = 0;
 
        /* poll IR chip */
-       if (1 != i2c_master_recv(&ir->c,&b,1)) {
-               dprintk(1,"read error\n");
+       if (4 != i2c_master_recv(&ir->c,b,4)) {
+               dprintk(2,"read error\n");
                return -EIO;
        }
 
-       /* no button press */
-       if (b==0)
+       for (start = 0; start<4; start++) {
+               if (b[start] == 0x80) {
+                       code=b[(start+3)%4];
+                       parity=b[(start+2)%4];
+               }
+       }
+
+       /* Empty Request */
+       if (parity==0)
                return 0;
 
-       /* repeating */
-       if (b & 0x80)
-               return 1;
+       /* Repeating... */
+       if (ir->old == parity)
+               return 0;
+
+
+       ir->old = parity;
+
+       /* Reduce code value to fit inside IR_KEYTAB_SIZE
+        *
+        * this is the only value that results in 42 unique
+        * codes < 128
+        */
+
+       code %= 0x88;
+
+       *ir_raw = code;
+       *ir_key = code;
+
+       dprintk(1,"Pinnacle PCTV key %02x\n", code);
 
-       *ir_key = b;
-       *ir_raw = b;
        return 1;
 }
+
+EXPORT_SYMBOL_GPL(get_key_pinnacle);
+
 /* ----------------------------------------------------------------------- */
 
 static void ir_key_poll(struct IR_i2c *ir)
@@ -287,17 +278,17 @@ static int ir_detach(struct i2c_client *client);
 static int ir_probe(struct i2c_adapter *adap);
 
 static struct i2c_driver driver = {
-        .name           = "ir remote kbd driver",
-        .id             = I2C_DRIVERID_EXP3, /* FIXME */
-        .flags          = I2C_DF_NOTIFY,
-        .attach_adapter = ir_probe,
-        .detach_client  = ir_detach,
+       .name           = "ir remote kbd driver",
+       .id             = I2C_DRIVERID_INFRARED,
+       .flags          = I2C_DF_NOTIFY,
+       .attach_adapter = ir_probe,
+       .detach_client  = ir_detach,
 };
 
 static struct i2c_client client_template =
 {
-        .name = "unset",
-        .driver = &driver
+       .name = "unset",
+       .driver = &driver
 };
 
 static int ir_attach(struct i2c_adapter *adap, int addr,
@@ -306,15 +297,15 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
        IR_KEYTAB_TYPE *ir_codes = NULL;
        char *name;
        int ir_type;
-        struct IR_i2c *ir;
+       struct IR_i2c *ir;
        struct input_dev *input_dev;
 
-       ir = kzalloc(sizeof(struct IR_i2c), GFP_KERNEL);
+       ir = kzalloc(sizeof(struct IR_i2c),GFP_KERNEL);
        input_dev = input_allocate_device();
        if (!ir || !input_dev) {
                kfree(ir);
                input_free_device(input_dev);
-                return -ENOMEM;
+               return -ENOMEM;
        }
 
        ir->c = client_template;
@@ -351,12 +342,11 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
                ir_codes    = ir_codes_empty;
                break;
        case 0x7a:
-               name        = "Purple TV";
-               ir->get_key = get_key_purpletv;
+       case 0x47:
+               /* Handled by saa7134-input */
+               name        = "SAA713x remote";
                ir_type     = IR_TYPE_OTHER;
-               ir_codes    = ir_codes_purpletv;
                break;
-
        default:
                /* shouldn't happen */
                printk(DEVNAME ": Huh? unknown i2c address (0x%02x)?\n",addr);
@@ -364,19 +354,28 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
                return -1;
        }
 
-       /* Sets name and its physical addr */
+       /* Sets name */
        snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name);
-       snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
-                ir->c.adapter->dev.bus_id,
-                ir->c.dev.bus_id);
        ir->ir_codes=ir_codes;
 
        /* register i2c device
         * At device register, IR codes may be changed to be
         * board dependent.
-       */
+        */
        i2c_attach_client(&ir->c);
 
+       /* If IR not supported or disabled, unregisters driver */
+       if (ir->get_key == NULL) {
+               i2c_detach_client(&ir->c);
+               kfree(ir);
+               return -1;
+       }
+
+       /* Phys addr can only be set after attaching (for ir->c.dev.bus_id) */
+       snprintf(ir->phys, sizeof(ir->phys), "%s/%s/ir0",
+                ir->c.adapter->dev.bus_id,
+                ir->c.dev.bus_id);
+
        /* init + register input device */
        ir_input_init(input_dev, &ir->ir, ir_type, ir_codes);
        input_dev->id.bustype   = BUS_I2C;
@@ -398,7 +397,7 @@ static int ir_attach(struct i2c_adapter *adap, int addr,
 
 static int ir_detach(struct i2c_client *client)
 {
-        struct IR_i2c *ir = i2c_get_clientdata(client);
+       struct IR_i2c *ir = i2c_get_clientdata(client);
 
        /* kill outstanding polls */
        del_timer(&ir->timer);
@@ -426,8 +425,8 @@ static int ir_probe(struct i2c_adapter *adap)
        */
 
        static const int probe_bttv[] = { 0x1a, 0x18, 0x4b, 0x64, 0x30, -1};
-       static const int probe_saa7134[] = { 0x7a, -1 };
-       static const int probe_em2820[] = { 0x30, 0x47, -1 };
+       static const int probe_saa7134[] = { 0x7a, 0x47, -1 };
+       static const int probe_em28XX[] = { 0x30, 0x47, -1 };
        const int *probe = NULL;
        struct i2c_client c;
        unsigned char buf;
@@ -440,8 +439,8 @@ static int ir_probe(struct i2c_adapter *adap)
        case I2C_HW_SAA7134:
                probe = probe_saa7134;
                break;
-       case I2C_HW_B_EM2820:
-               probe = probe_em2820;
+       case I2C_HW_B_EM28XX:
+               probe = probe_em28XX;
                break;
        }
        if (NULL == probe)