diff options
Diffstat (limited to 'drivers/media/video/ir-kbd-gpio.c')
| -rw-r--r-- | drivers/media/video/ir-kbd-gpio.c | 444 |
1 files changed, 444 insertions, 0 deletions
diff --git a/drivers/media/video/ir-kbd-gpio.c b/drivers/media/video/ir-kbd-gpio.c new file mode 100644 index 00000000000..ab6620de4b3 --- /dev/null +++ b/drivers/media/video/ir-kbd-gpio.c @@ -0,0 +1,444 @@ +/* + * $Id: ir-kbd-gpio.c,v 1.12 2005/02/22 12:28:40 kraxel Exp $ + * + * Copyright (c) 2003 Gerd Knorr + * Copyright (c) 2003 Pavel Machek + * + * 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 + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/init.h> +#include <linux/delay.h> +#include <linux/interrupt.h> +#include <linux/input.h> +#include <linux/pci.h> + +#include <media/ir-common.h> + +#include "bttv.h" + +/* ---------------------------------------------------------------------- */ + +static IR_KEYTAB_TYPE ir_codes_avermedia[IR_KEYTAB_SIZE] = { + [ 34 ] = KEY_KP0, + [ 40 ] = KEY_KP1, + [ 24 ] = KEY_KP2, + [ 56 ] = KEY_KP3, + [ 36 ] = KEY_KP4, + [ 20 ] = KEY_KP5, + [ 52 ] = KEY_KP6, + [ 44 ] = KEY_KP7, + [ 28 ] = KEY_KP8, + [ 60 ] = KEY_KP9, + + [ 48 ] = KEY_EJECTCD, // Unmarked on my controller + [ 0 ] = KEY_POWER, + [ 18 ] = BTN_LEFT, // DISPLAY/L + [ 50 ] = BTN_RIGHT, // LOOP/R + [ 10 ] = KEY_MUTE, + [ 38 ] = KEY_RECORD, + [ 22 ] = KEY_PAUSE, + [ 54 ] = KEY_STOP, + [ 30 ] = KEY_VOLUMEDOWN, + [ 62 ] = KEY_VOLUMEUP, + + [ 32 ] = KEY_TUNER, // TV/FM + [ 16 ] = KEY_CD, + [ 8 ] = KEY_VIDEO, + [ 4 ] = KEY_AUDIO, + [ 12 ] = KEY_ZOOM, // full screen + [ 2 ] = KEY_INFO, // preview + [ 42 ] = KEY_SEARCH, // autoscan + [ 26 ] = KEY_STOP, // freeze + [ 58 ] = KEY_RECORD, // capture + [ 6 ] = KEY_PLAY, // unmarked + [ 46 ] = KEY_RED, // unmarked + [ 14 ] = KEY_GREEN, // unmarked + + [ 33 ] = KEY_YELLOW, // unmarked + [ 17 ] = KEY_CHANNELDOWN, + [ 49 ] = KEY_CHANNELUP, + [ 1 ] = KEY_BLUE, // unmarked +}; + +/* Matt Jesson <dvb@jesson.eclipse.co.uk */ +static IR_KEYTAB_TYPE ir_codes_avermedia_dvbt[IR_KEYTAB_SIZE] = { + [ 0x28 ] = KEY_KP0, //'0' / 'enter' + [ 0x22 ] = KEY_KP1, //'1' + [ 0x12 ] = KEY_KP2, //'2' / 'up arrow' + [ 0x32 ] = KEY_KP3, //'3' + [ 0x24 ] = KEY_KP4, //'4' / 'left arrow' + [ 0x14 ] = KEY_KP5, //'5' + [ 0x34 ] = KEY_KP6, //'6' / 'right arrow' + [ 0x26 ] = KEY_KP7, //'7' + [ 0x16 ] = KEY_KP8, //'8' / 'down arrow' + [ 0x36 ] = KEY_KP9, //'9' + + [ 0x20 ] = KEY_LIST, // 'source' + [ 0x10 ] = KEY_TEXT, // 'teletext' + [ 0x00 ] = KEY_POWER, // 'power' + [ 0x04 ] = KEY_AUDIO, // 'audio' + [ 0x06 ] = KEY_ZOOM, // 'full screen' + [ 0x18 ] = KEY_VIDEO, // 'display' + [ 0x38 ] = KEY_SEARCH, // 'loop' + [ 0x08 ] = KEY_INFO, // 'preview' + [ 0x2a ] = KEY_REWIND, // 'backward <<' + [ 0x1a ] = KEY_FASTFORWARD, // 'forward >>' + [ 0x3a ] = KEY_RECORD, // 'capture' + [ 0x0a ] = KEY_MUTE, // 'mute' + [ 0x2c ] = KEY_RECORD, // 'record' + [ 0x1c ] = KEY_PAUSE, // 'pause' + [ 0x3c ] = KEY_STOP, // 'stop' + [ 0x0c ] = KEY_PLAY, // 'play' + [ 0x2e ] = KEY_RED, // 'red' + [ 0x01 ] = KEY_BLUE, // 'blue' / 'cancel' + [ 0x0e ] = KEY_YELLOW, // 'yellow' / 'ok' + [ 0x21 ] = KEY_GREEN, // 'green' + [ 0x11 ] = KEY_CHANNELDOWN, // 'channel -' + [ 0x31 ] = KEY_CHANNELUP, // 'channel +' + [ 0x1e ] = KEY_VOLUMEDOWN, // 'volume -' + [ 0x3e ] = KEY_VOLUMEUP, // 'volume +' +}; + +static IR_KEYTAB_TYPE ir_codes_pixelview[IR_KEYTAB_SIZE] = { + [ 2 ] = KEY_KP0, + [ 1 ] = KEY_KP1, + [ 11 ] = KEY_KP2, + [ 27 ] = KEY_KP3, + [ 5 ] = KEY_KP4, + [ 9 ] = KEY_KP5, + [ 21 ] = KEY_KP6, + [ 6 ] = KEY_KP7, + [ 10 ] = KEY_KP8, + [ 18 ] = KEY_KP9, + + [ 3 ] = KEY_TUNER, // TV/FM + [ 7 ] = KEY_SEARCH, // scan + [ 28 ] = KEY_ZOOM, // full screen + [ 30 ] = KEY_POWER, + [ 23 ] = KEY_VOLUMEDOWN, + [ 31 ] = KEY_VOLUMEUP, + [ 20 ] = KEY_CHANNELDOWN, + [ 22 ] = KEY_CHANNELUP, + [ 24 ] = KEY_MUTE, + + [ 0 ] = KEY_LIST, // source + [ 19 ] = KEY_INFO, // loop + [ 16 ] = KEY_LAST, // +100 + [ 13 ] = KEY_CLEAR, // reset + [ 12 ] = BTN_RIGHT, // fun++ + [ 4 ] = BTN_LEFT, // fun-- + [ 14 ] = KEY_GOTO, // function + [ 15 ] = KEY_STOP, // freeze +}; + +/* Attila Kondoros <attila.kondoros@chello.hu> */ +static IR_KEYTAB_TYPE ir_codes_apac_viewcomp[IR_KEYTAB_SIZE] = { + + [ 1 ] = KEY_KP1, + [ 2 ] = KEY_KP2, + [ 3 ] = KEY_KP3, + [ 4 ] = KEY_KP4, + [ 5 ] = KEY_KP5, + [ 6 ] = KEY_KP6, + [ 7 ] = KEY_KP7, + [ 8 ] = KEY_KP8, + [ 9 ] = KEY_KP9, + [ 0 ] = KEY_KP0, + [ 23 ] = KEY_LAST, // +100 + [ 10 ] = KEY_LIST, // recall + + + [ 28 ] = KEY_TUNER, // TV/FM + [ 21 ] = KEY_SEARCH, // scan + [ 18 ] = KEY_POWER, // power + [ 31 ] = KEY_VOLUMEDOWN, // vol up + [ 27 ] = KEY_VOLUMEUP, // vol down + [ 30 ] = KEY_CHANNELDOWN, // chn up + [ 26 ] = KEY_CHANNELUP, // chn down + + [ 17 ] = KEY_VIDEO, // video + [ 15 ] = KEY_ZOOM, // full screen + [ 19 ] = KEY_MUTE, // mute/unmute + [ 16 ] = KEY_TEXT, // min + + [ 13 ] = KEY_STOP, // freeze + [ 14 ] = KEY_RECORD, // record + [ 29 ] = KEY_PLAYPAUSE, // stop + [ 25 ] = KEY_PLAY, // play + + [ 22 ] = KEY_GOTO, // osd + [ 20 ] = KEY_REFRESH, // default + [ 12 ] = KEY_KPPLUS, // fine tune >>>> + [ 24 ] = KEY_KPMINUS // fine tune <<<< +}; + +/* ---------------------------------------------------------------------- */ + +struct IR { + struct bttv_sub_device *sub; + struct input_dev input; + struct ir_input_state ir; + char name[32]; + char phys[32]; + u32 mask_keycode; + u32 mask_keydown; + u32 mask_keyup; + + int polling; + u32 last_gpio; + struct work_struct work; + struct timer_list timer; +}; + +static int debug; +module_param(debug, int, 0644); /* debug level (0,1,2) */ + +#define DEVNAME "ir-kbd-gpio" +#define dprintk(fmt, arg...) if (debug) \ + printk(KERN_DEBUG DEVNAME ": " fmt , ## arg) + +static void ir_irq(struct bttv_sub_device *sub); +static int ir_probe(struct device *dev); +static int ir_remove(struct device *dev); + +static struct bttv_sub_driver driver = { + .drv = { + .name = DEVNAME, + .probe = ir_probe, + .remove = ir_remove, + }, + .gpio_irq = ir_irq, +}; + +/* ---------------------------------------------------------------------- */ + +static void ir_handle_key(struct IR *ir) +{ + u32 gpio,data; + + /* read gpio value */ + gpio = bttv_gpio_read(ir->sub->core); + if (ir->polling) { + if (ir->last_gpio == gpio) + return; + ir->last_gpio = gpio; + } + + /* extract data */ + data = ir_extract_bits(gpio, ir->mask_keycode); + dprintk(DEVNAME ": irq gpio=0x%x code=%d | %s%s%s\n", + gpio, data, + ir->polling ? "poll" : "irq", + (gpio & ir->mask_keydown) ? " down" : "", + (gpio & ir->mask_keyup) ? " up" : ""); + + if (ir->mask_keydown) { + /* bit set on keydown */ + if (gpio & ir->mask_keydown) { + ir_input_keydown(&ir->input,&ir->ir,data,data); + } else { + ir_input_nokey(&ir->input,&ir->ir); + } + + } else if (ir->mask_keyup) { + /* bit cleared on keydown */ + if (0 == (gpio & ir->mask_keyup)) { + ir_input_keydown(&ir->input,&ir->ir,data,data); + } else { + ir_input_nokey(&ir->input,&ir->ir); + } + + } else { + /* can't disturgissh keydown/up :-/ */ + ir_input_keydown(&ir->input,&ir->ir,data,data); + ir_input_nokey(&ir->input,&ir->ir); + } +} + +static void ir_irq(struct bttv_sub_device *sub) +{ + struct IR *ir = dev_get_drvdata(&sub->dev); + + if (!ir->polling) + ir_handle_key(ir); +} + +static void ir_timer(unsigned long data) +{ + struct IR *ir = (struct IR*)data; + + schedule_work(&ir->work); +} + +static void ir_work(void *data) +{ + struct IR *ir = data; + unsigned long timeout; + + ir_handle_key(ir); + timeout = jiffies + (ir->polling * HZ / 1000); + mod_timer(&ir->timer, timeout); +} + +/* ---------------------------------------------------------------------- */ + +static int ir_probe(struct device *dev) +{ + struct bttv_sub_device *sub = to_bttv_sub_dev(dev); + struct IR *ir; + IR_KEYTAB_TYPE *ir_codes = NULL; + int ir_type = IR_TYPE_OTHER; + + ir = kmalloc(sizeof(*ir),GFP_KERNEL); + if (NULL == ir) + return -ENOMEM; + memset(ir,0,sizeof(*ir)); + + /* detect & configure */ + switch (sub->core->type) { + case BTTV_AVERMEDIA: + case BTTV_AVPHONE98: + case BTTV_AVERMEDIA98: + ir_codes = ir_codes_avermedia; + ir->mask_keycode = 0xf88000; + ir->mask_keydown = 0x010000; + ir->polling = 50; // ms + break; + + case BTTV_AVDVBT_761: + case BTTV_AVDVBT_771: + ir_codes = ir_codes_avermedia_dvbt; + ir->mask_keycode = 0x0f00c0; + ir->mask_keydown = 0x000020; + ir->polling = 50; // ms + break; + + case BTTV_PXELVWPLTVPAK: + ir_codes = ir_codes_pixelview; + ir->mask_keycode = 0x003e00; + ir->mask_keyup = 0x010000; + ir->polling = 50; // ms + break; + case BTTV_PV_BT878P_9B: + case BTTV_PV_BT878P_PLUS: + ir_codes = ir_codes_pixelview; + ir->mask_keycode = 0x001f00; + ir->mask_keyup = 0x008000; + ir->polling = 50; // ms + break; + + case BTTV_WINFAST2000: + ir_codes = ir_codes_winfast; + ir->mask_keycode = 0x1f8; + break; + case BTTV_MAGICTVIEW061: + case BTTV_MAGICTVIEW063: + ir_codes = ir_codes_winfast; + ir->mask_keycode = 0x0008e000; + ir->mask_keydown = 0x00200000; + break; + case BTTV_APAC_VIEWCOMP: + ir_codes = ir_codes_apac_viewcomp; + ir->mask_keycode = 0x001f00; + ir->mask_keyup = 0x008000; + ir->polling = 50; // ms + break; + } + if (NULL == ir_codes) { + kfree(ir); + return -ENODEV; + } + + /* init hardware-specific stuff */ + bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0); + ir->sub = sub; + + /* init input device */ + snprintf(ir->name, sizeof(ir->name), "bttv IR (card=%d)", + sub->core->type); + snprintf(ir->phys, sizeof(ir->phys), "pci-%s/ir0", + pci_name(sub->core->pci)); + + ir_input_init(&ir->input, &ir->ir, ir_type, ir_codes); + ir->input.name = ir->name; + ir->input.phys = ir->phys; + ir->input.id.bustype = BUS_PCI; + ir->input.id.version = 1; + if (sub->core->pci->subsystem_vendor) { + ir->input.id.vendor = sub->core->pci->subsystem_vendor; + ir->input.id.product = sub->core->pci->subsystem_device; + } else { + ir->input.id.vendor = sub->core->pci->vendor; + ir->input.id.product = sub->core->pci->device; + } + + if (ir->polling) { + INIT_WORK(&ir->work, ir_work, ir); + init_timer(&ir->timer); + ir->timer.function = ir_timer; + ir->timer.data = (unsigned long)ir; + schedule_work(&ir->work); + } + + /* all done */ + dev_set_drvdata(dev,ir); + input_register_device(&ir->input); + printk(DEVNAME ": %s detected at %s\n",ir->input.name,ir->input.phys); + + return 0; +} + +static int ir_remove(struct device *dev) +{ + struct IR *ir = dev_get_drvdata(dev); + + if (ir->polling) { + del_timer(&ir->timer); + flush_scheduled_work(); + } + + input_unregister_device(&ir->input); + kfree(ir); + return 0; +} + +/* ---------------------------------------------------------------------- */ + +MODULE_AUTHOR("Gerd Knorr, Pavel Machek"); +MODULE_DESCRIPTION("input driver for bt8x8 gpio IR remote controls"); +MODULE_LICENSE("GPL"); + +static int ir_init(void) +{ + return bttv_sub_register(&driver, "remote"); +} + +static void ir_fini(void) +{ + bttv_sub_unregister(&driver); +} + +module_init(ir_init); +module_exit(ir_fini); + + +/* + * Local variables: + * c-basic-offset: 8 + * End: + */ |