/* * * 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 #include #include #include #include #include #include #include "bttv.h" #include /* ---------------------------------------------------------------------- */ 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 >' [ 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 +' }; /* Attila Kondoros */ 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 <<<< }; /* ---------------------------------------------------------------------- */ /* Ricardo Cerqueira */ /* Weird matching, since the remote has "uncommon" keys */ static IR_KEYTAB_TYPE ir_codes_conceptronic[IR_KEYTAB_SIZE] = { [ 30 ] = KEY_POWER, // power [ 7 ] = KEY_MEDIA, // source [ 28 ] = KEY_SEARCH, // scan /* FIXME: duplicate keycodes? * * These four keys seem to share the same GPIO as CH+, CH-, <<< and >>> * The GPIO values are * 6397fb for both "Scan <" and "CH -", * 639ffb for "Scan >" and "CH+", * 6384fb for "Tune <" and "<<<", * 638cfb for "Tune >" and ">>>", regardless of the mask. * * [ 23 ] = KEY_BACK, // fm scan << * [ 31 ] = KEY_FORWARD, // fm scan >> * * [ 4 ] = KEY_LEFT, // fm tuning < * [ 12 ] = KEY_RIGHT, // fm tuning > * * For now, these four keys are disabled. Pressing them will generate * the CH+/CH-/<<>> events */ [ 3 ] = KEY_TUNER, // TV/FM [ 0 ] = KEY_RECORD, [ 8 ] = KEY_STOP, [ 17 ] = KEY_PLAY, [ 26 ] = KEY_PLAYPAUSE, // freeze [ 25 ] = KEY_ZOOM, // zoom [ 15 ] = KEY_TEXT, // min [ 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, [ 2 ] = KEY_KP0, [ 16 ] = KEY_LAST, // +100 [ 19 ] = KEY_LIST, // recall [ 31 ] = KEY_CHANNELUP, // chn down [ 23 ] = KEY_CHANNELDOWN, // chn up [ 22 ] = KEY_VOLUMEUP, // vol down [ 20 ] = KEY_VOLUMEDOWN, // vol up [ 4 ] = KEY_KPMINUS, // <<< [ 14 ] = KEY_SETUP, // function [ 12 ] = KEY_KPPLUS, // >>> [ 13 ] = KEY_GOTO, // mts [ 29 ] = KEY_REFRESH, // reset [ 24 ] = KEY_MUTE // mute/unmute }; static IR_KEYTAB_TYPE ir_codes_nebula[IR_KEYTAB_SIZE] = { [0x00] = KEY_KP0, [0x01] = KEY_KP1, [0x02] = KEY_KP2, [0x03] = KEY_KP3, [0x04] = KEY_KP4, [0x05] = KEY_KP5, [0x06] = KEY_KP6, [0x07] = KEY_KP7, [0x08] = KEY_KP8, [0x09] = KEY_KP9, [0x0a] = KEY_TV, [0x0b] = KEY_AUX, [0x0c] = KEY_DVD, [0x0d] = KEY_POWER, [0x0e] = KEY_MHP, /* labelled 'Picture' */ [0x0f] = KEY_AUDIO, [0x10] = KEY_INFO, [0x11] = KEY_F13, /* 16:9 */ [0x12] = KEY_F14, /* 14:9 */ [0x13] = KEY_EPG, [0x14] = KEY_EXIT, [0x15] = KEY_MENU, [0x16] = KEY_UP, [0x17] = KEY_DOWN, [0x18] = KEY_LEFT, [0x19] = KEY_RIGHT, [0x1a] = KEY_ENTER, [0x1b] = KEY_CHANNELUP, [0x1c] = KEY_CHANNELDOWN, [0x1d] = KEY_VOLUMEUP, [0x1e] = KEY_VOLUMEDOWN, [0x1f] = KEY_RED, [0x20] = KEY_GREEN, [0x21] = KEY_YELLOW, [0x22] = KEY_BLUE, [0x23] = KEY_SUBTITLE, [0x24] = KEY_F15, /* AD */ [0x25] = KEY_TEXT, [0x26] = KEY_MUTE, [0x27] = KEY_REWIND, [0x28] = KEY_STOP, [0x29] = KEY_PLAY, [0x2a] = KEY_FASTFORWARD, [0x2b] = KEY_F16, /* chapter */ [0x2c] = KEY_PAUSE, [0x2d] = KEY_PLAY, [0x2e] = KEY_RECORD, [0x2f] = KEY_F17, /* picture in picture */ [0x30] = KEY_KPPLUS, /* zoom in */ [0x31] = KEY_KPMINUS, /* zoom out */ [0x32] = KEY_F18, /* capture */ [0x33] = KEY_F19, /* web */ [0x34] = KEY_EMAIL, [0x35] = KEY_PHONE, [0x36] = KEY_PC }; struct IR { struct bttv_sub_device *sub; struct input_dev *input; struct ir_input_state ir; char name[32]; char phys[32]; /* Usual gpio signalling */ u32 mask_keycode; u32 mask_keydown; u32 mask_keyup; u32 polling; u32 last_gpio; struct work_struct work; struct timer_list timer; /* RC5 gpio */ u32 rc5_gpio; struct timer_list timer_end; /* timer_end for code completion */ struct timer_list timer_keyup; /* timer_end for key release */ u32 last_rc5; /* last good rc5 code */ u32 last_bit; /* last raw bit seen */ u32 code; /* raw code under construction */ struct timeval base_time; /* time of last seen code */ int active; /* building raw code */ }; static int debug; module_param(debug, int, 0644); /* debug level (0,1,2) */ static int repeat_delay = 500; module_param(repeat_delay, int, 0644); static int repeat_period = 33; module_param(repeat_period, int, 0644); #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 rc5_remote_gap = 885; module_param(rc5_remote_gap, int, 0644); static int rc5_key_timeout = 200; module_param(rc5_key_timeout, int, 0644); #define RC5_START(x) (((x)>>12)&3) #define RC5_TOGGLE(x) (((x)>>11)&1) #define RC5_ADDR(x) (((x)>>6)&31) #define RC5_INSTR(x) ((x)&63) /* decode raw bit pattern to RC5 code */ static u32 rc5_decode(unsigned int code) { unsigned int org_code = code; unsigned int pair; unsigned int rc5 = 0; int i; code = (code << 1) | 1; for (i = 0; i < 14; ++i) { pair = code & 0x3; code >>= 2; rc5 <<= 1; switch (pair) { case 0: case 2: break; case 1: rc5 |= 1; break; case 3: dprintk("bad code: %x\n", org_code); return 0; } } dprintk("code=%x, rc5=%x, start=%x, toggle=%x, address=%x, " "instr=%x\n", rc5, org_code, RC5_START(rc5), RC5_TOGGLE(rc5), RC5_ADDR(rc5), RC5_INSTR(rc5)); return rc5; } static int ir_rc5_irq(struct bttv_sub_device *sub) { struct IR *ir = dev_get_drvdata(&sub->dev); struct timeval tv; u32 gpio; u32 gap; unsigned long current_jiffies, timeout; /* read gpio port */ gpio = bttv_gpio_read(ir->sub->core); /* remote IRQ? */ if (!(gpio & 0x20)) return 0; /* get time of bit */ current_jiffies = jiffies; do_gettimeofday(&tv); /* avoid overflow with gap >1s */ if (tv.tv_sec - ir->base_time.tv_sec > 1) { gap = 200000; } else { gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + tv.tv_usec - ir->base_time.tv_usec; } /* active code => add bit */ if (ir->active) { /* only if in the code (otherwise spurious IRQ or timer late) */ if (ir->last_bit < 28) { ir->last_bit = (gap - rc5_remote_gap / 2) / rc5_remote_gap; ir->code |= 1 << ir->last_bit; } /* starting new code */ } else { ir->active = 1; ir->code = 0; ir->base_time = tv; ir->last_bit = 0; timeout = current_jiffies + (500 + 30 * HZ) / 1000; mod_timer(&ir->timer_end, timeout); } /* toggle GPIO pin 4 to reset the irq */ bttv_gpio_write(ir->sub->core, gpio & ~(1 << 4)); bttv_gpio_write(ir->sub->core, gpio | (1 << 4)); return 1; } static void ir_rc5_timer_end(unsigned long data) { struct IR *ir = (struct IR *)data; struct timeval tv; unsigned long current_jiffies, timeout; u32 gap; /* get time */ current_jiffies = jiffies; do_gettimeofday(&tv); /* avoid overflow with gap >1s */ if (tv.tv_sec - ir->base_time.tv_sec > 1) { gap = 200000; } else { gap = 1000000 * (tv.tv_sec - ir->base_time.tv_sec) + tv.tv_usec - ir->base_time.tv_usec; } /* Allow some timmer jitter (RC5 is ~24ms anyway so this is ok) */ if (gap < 28000) { dprintk("spurious timer_end\n"); return; } ir->active = 0; if (ir->last_bit < 20) { /* ignore spurious codes (caused by light/other remotes) */ dprintk("short code: %x\n", ir->code); } else { u32 rc5 = rc5_decode(ir->code); /* two start bits? */ if (RC5_START(rc5) != 3) { dprintk("rc5 start bits invalid: %u\n", RC5_START(rc5)); /* right address? */ } else if (RC5_ADDR(rc5) == 0x0) { u32 toggle = RC5_TOGGLE(rc5); u32 instr = RC5_INSTR(rc5); /* Good code, decide if repeat/repress */ if (toggle != RC5_TOGGLE(ir->last_rc5) || instr != RC5_INSTR(ir->last_rc5)) { dprintk("instruction %x, toggle %x\n", instr, toggle); ir_input_nokey(ir->input, &ir->ir); ir_input_keydown(ir->input, &ir->ir, instr, instr); } /* Set/reset key-up timer */ timeout = current_jiffies + (500 + rc5_key_timeout * HZ) / 1000; mod_timer(&ir->timer_keyup, timeout); /* Save code for repeat test */ ir->last_rc5 = rc5; } } } static void ir_rc5_timer_keyup(unsigned long data) { struct IR *ir = (struct IR *)data; dprintk("key released\n"); ir_input_nokey(ir->input, &ir->ir); } /* ---------------------------------------------------------------------- */ static int ir_probe(struct device *dev) { struct bttv_sub_device *sub = to_bttv_sub_dev(dev); struct IR *ir; struct input_dev *input_dev; IR_KEYTAB_TYPE *ir_codes = NULL; int ir_type = IR_TYPE_OTHER; ir = kzalloc(sizeof(*ir), GFP_KERNEL); input_dev = input_allocate_device(); if (!ir || !input_dev) { kfree(ir); input_free_device(input_dev); return -ENOMEM; } /* detect & configure */ switch (sub->core->type) { case BTTV_BOARD_AVERMEDIA: case BTTV_BOARD_AVPHONE98: case BTTV_BOARD_AVERMEDIA98: ir_codes = ir_codes_avermedia; ir->mask_keycode = 0xf88000; ir->mask_keydown = 0x010000; ir->polling = 50; // ms break; case BTTV_BOARD_AVDVBT_761: case BTTV_BOARD_AVDVBT_771: ir_codes = ir_codes_avermedia_dvbt; ir->mask_keycode = 0x0f00c0; ir->mask_keydown = 0x000020; ir->polling = 50; // ms break; case BTTV_BOARD_PXELVWPLTVPAK: ir_codes = ir_codes_pixelview; ir->mask_keycode = 0x003e00; ir->mask_keyup = 0x010000; ir->polling = 50; // ms break; case BTTV_BOARD_PV_BT878P_9B: case BTTV_BOARD_PV_BT878P_PLUS: ir_codes = ir_codes_pixelview; ir->mask_keycode = 0x001f00; ir->mask_keyup = 0x008000; ir->polling = 50; // ms break; case BTTV_BOARD_WINFAST2000: ir_codes = ir_codes_winfast; ir->mask_keycode = 0x1f8; break; case BTTV_BOARD_MAGICTVIEW061: case BTTV_BOARD_MAGICTVIEW063: ir_codes = ir_codes_winfast; ir->mask_keycode = 0x0008e000; ir->mask_keydown = 0x00200000; break; case BTTV_BOARD_APAC_VIEWCOMP: ir_codes = ir_codes_apac_viewcomp; ir->mask_keycode = 0x001f00; ir->mask_keyup = 0x008000; ir->polling = 50; // ms break; case BTTV_BOARD_CONCEPTRONIC_CTVFMI2: ir_codes = ir_codes_conceptronic; ir->mask_keycode = 0x001F00; ir->mask_keyup = 0x006000; ir->polling = 50; // ms break; case BTTV_BOARD_NEBULA_DIGITV: ir_codes = ir_codes_nebula; driver.any_irq = ir_rc5_irq; driver.gpio_irq = NULL; ir->rc5_gpio = 1; break; } if (NULL == ir_codes) { kfree(ir); input_free_device(input_dev); return -ENODEV; } if (ir->rc5_gpio) { u32 gpio; /* enable remote irq */ bttv_gpio_inout(sub->core, (1 << 4), 1 << 4); gpio = bttv_gpio_read(sub->core); bttv_gpio_write(sub->core, gpio & ~(1 << 4)); bttv_gpio_write(sub->core, gpio | (1 << 4)); } else { /* init hardware-specific stuff */ bttv_gpio_inout(sub->core, ir->mask_keycode | ir->mask_keydown, 0); } /* 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 = input_dev; ir->sub = sub; ir_input_init(input_dev, &ir->ir, ir_type, ir_codes); input_dev->name = ir->name; input_dev->phys = ir->phys; input_dev->id.bustype = BUS_PCI; input_dev->id.version = 1; if (sub->core->pci->subsystem_vendor) { input_dev->id.vendor = sub->core->pci->subsystem_vendor; input_dev->id.product = sub->core->pci->subsystem_device; } else { input_dev->id.vendor = sub->core->pci->vendor; input_dev->id.product = sub->core->pci->device; } input_dev->cdev.dev = &sub->core->pci->dev; 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); } else if (ir->rc5_gpio) { /* set timer_end for code completion */ init_timer(&ir->timer_end); ir->timer_end.function = ir_rc5_timer_end; ir->timer_end.data = (unsigned long)ir; init_timer(&ir->timer_keyup); ir->timer_keyup.function = ir_rc5_timer_keyup; ir->timer_keyup.data = (unsigned long)ir; } /* all done */ dev_set_drvdata(dev, ir); input_register_device(ir->input); /* the remote isn't as bouncy as a keyboard */ ir->input->rep[REP_DELAY] = repeat_delay; ir->input->rep[REP_PERIOD] = repeat_period; 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(); } if (ir->rc5_gpio) { u32 gpio; del_timer(&ir->timer_end); flush_scheduled_work(); gpio = bttv_gpio_read(ir->sub->core); bttv_gpio_write(ir->sub->core, gpio & ~(1 << 4)); } 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: */