diff options
Diffstat (limited to 'drivers/media/video/ir-kbd-i2c.c')
-rw-r--r-- | drivers/media/video/ir-kbd-i2c.c | 225 |
1 files changed, 116 insertions, 109 deletions
diff --git a/drivers/media/video/ir-kbd-i2c.c b/drivers/media/video/ir-kbd-i2c.c index 67105b9804a..124c502ea1f 100644 --- a/drivers/media/video/ir-kbd-i2c.c +++ b/drivers/media/video/ir-kbd-i2c.c @@ -8,6 +8,8 @@ * Christoph Bartelmus <lirc@bartelmus.de> * modified for KNC ONE TV Station/Anubis Typhoon TView Tuner by * Ulrich Mueller <ulrich.mueller42@web.de> + * modified for em2820 based USB TV tuners by + * Markus Rechberger <mrechberger@gmail.com> * * 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 @@ -37,10 +39,9 @@ #include <linux/slab.h> #include <linux/i2c.h> #include <linux/workqueue.h> - #include <asm/semaphore.h> - #include <media/ir-common.h> +#include <media/ir-kbd-i2c.h> /* Mark Phalan <phalanm@o2.ie> */ static IR_KEYTAB_TYPE ir_codes_pv951[IR_KEYTAB_SIZE] = { @@ -81,58 +82,6 @@ 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 ? */ - -}; - -struct IR; -struct IR { - struct i2c_client c; - struct input_dev input; - struct ir_input_state ir; - - struct work_struct work; - struct timer_list timer; - char phys[32]; - int (*get_key)(struct IR*, u32*, u32*); -}; - /* ----------------------------------------------------------------------- */ /* insmod parameters */ @@ -145,7 +94,7 @@ module_param(debug, int, 0644); /* debug level (0,1,2) */ /* ----------------------------------------------------------------------- */ -static int get_key_haup(struct IR *ir, u32 *ir_key, u32 *ir_raw) +static int get_key_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char buf[3]; int start, toggle, dev, code; @@ -172,9 +121,9 @@ static int get_key_haup(struct IR *ir, u32 *ir_key, u32 *ir_raw) return 1; } -static int get_key_pixelview(struct IR *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)) { @@ -186,9 +135,9 @@ static int get_key_pixelview(struct IR *ir, u32 *ir_key, u32 *ir_raw) return 1; } -static int get_key_pv951(struct IR *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)) { @@ -206,7 +155,7 @@ static int get_key_pv951(struct IR *ir, u32 *ir_key, u32 *ir_raw) return 1; } -static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw) +static int get_key_knc1(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char b; @@ -217,15 +166,15 @@ static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw) } /* it seems that 0xFE indicates that a button is still hold - down, while 0xFF indicates that no button is hold - down. 0xFE sequences are sometimes interrupted by 0xFF */ + down, while 0xff indicates that no button is hold + down. 0xfe sequences are sometimes interrupted by 0xFF */ dprintk(2,"key %02x\n", b); - if (b == 0xFF) + if (b == 0xff) return 0; - if (b == 0xFE) + if (b == 0xfe) /* keep old data */ return 1; @@ -234,31 +183,61 @@ static int get_key_knc1(struct IR *ir, u32 *ir_key, u32 *ir_raw) return 1; } -static int get_key_purpletv(struct IR *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 *ir) +static void ir_key_poll(struct IR_i2c *ir) { static u32 ir_key, ir_raw; int rc; @@ -271,21 +250,21 @@ static void ir_key_poll(struct IR *ir) } if (0 == rc) { - ir_input_nokey(&ir->input,&ir->ir); + ir_input_nokey(ir->input, &ir->ir); } else { - ir_input_keydown(&ir->input,&ir->ir, ir_key, ir_raw); + ir_input_keydown(ir->input, &ir->ir, ir_key, ir_raw); } } static void ir_timer(unsigned long data) { - struct IR *ir = (struct IR*)data; + struct IR_i2c *ir = (struct IR_i2c*)data; schedule_work(&ir->work); } static void ir_work(void *data) { - struct IR *ir = data; + struct IR_i2c *ir = data; ir_key_poll(ir); mod_timer(&ir->timer, jiffies+HZ/10); } @@ -298,17 +277,17 @@ 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_I2C_IR, + .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, @@ -317,12 +296,19 @@ static int ir_attach(struct i2c_adapter *adap, int addr, IR_KEYTAB_TYPE *ir_codes = NULL; char *name; int ir_type; - struct IR *ir; + struct IR_i2c *ir; + struct input_dev *input_dev; - if (NULL == (ir = kmalloc(sizeof(struct IR),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; - memset(ir,0,sizeof(*ir)); + } + ir->c = client_template; + ir->input = input_dev; i2c_set_clientdata(&ir->c, ir); ir->c.adapter = adap; @@ -355,10 +341,10 @@ 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 */ @@ -367,21 +353,36 @@ static int ir_attach(struct i2c_adapter *adap, int addr, return -1; } - /* register i2c device */ - i2c_attach_client(&ir->c); + /* Sets name */ snprintf(ir->c.name, sizeof(ir->c.name), "i2c IR (%s)", name); + 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(&ir->input,&ir->ir,ir_type,ir_codes); - ir->input.id.bustype = BUS_I2C; - ir->input.name = ir->c.name; - ir->input.phys = ir->phys; - input_register_device(&ir->input); - printk(DEVNAME ": %s detected at %s [%s]\n", - ir->input.name,ir->input.phys,adap->name); + ir_input_init(input_dev, &ir->ir, ir_type, ir_codes); + input_dev->id.bustype = BUS_I2C; + input_dev->name = ir->c.name; + input_dev->phys = ir->phys; + + /* register event device */ + input_register_device(ir->input); /* start polling via eventd */ INIT_WORK(&ir->work, ir_work, ir); @@ -395,14 +396,14 @@ static int ir_attach(struct i2c_adapter *adap, int addr, static int ir_detach(struct i2c_client *client) { - struct IR *ir = i2c_get_clientdata(client); + struct IR_i2c *ir = i2c_get_clientdata(client); /* kill outstanding polls */ del_timer(&ir->timer); flush_scheduled_work(); /* unregister devices */ - input_unregister_device(&ir->input); + input_unregister_device(ir->input); i2c_detach_client(&ir->c); /* free memory */ @@ -423,9 +424,12 @@ 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_saa7134[] = { 0x7a, 0x47, -1 }; + static const int probe_em28XX[] = { 0x30, 0x47, -1 }; const int *probe = NULL; - struct i2c_client c; char buf; int i,rc; + struct i2c_client c; + unsigned char buf; + int i,rc; switch (adap->id) { case I2C_HW_B_BT848: @@ -434,6 +438,9 @@ static int ir_probe(struct i2c_adapter *adap) case I2C_HW_SAA7134: probe = probe_saa7134; break; + case I2C_HW_B_EM28XX: + probe = probe_em28XX; + break; } if (NULL == probe) return 0; @@ -442,11 +449,11 @@ static int ir_probe(struct i2c_adapter *adap) c.adapter = adap; for (i = 0; -1 != probe[i]; i++) { c.addr = probe[i]; - rc = i2c_master_recv(&c,&buf,1); + rc = i2c_master_recv(&c,&buf,0); dprintk(1,"probe 0x%02x @ %s: %s\n", probe[i], adap->name, - (1 == rc) ? "yes" : "no"); - if (1 == rc) { + (0 == rc) ? "yes" : "no"); + if (0 == rc) { ir_attach(adap,probe[i],0,0); break; } |