[media] bt8xx: fixup RC5 decoding
The bt8xx driver does RC5 decoding for Nebula digi hardware, but includes some pointless limitations (both start bits must be one, the device/address/system must be 0x00). Remove those limitations and update the keymap to use the full RC5 scancode (fortunately the 0x00 address means that this is perfectly backwards compatible). Signed-off-by: David Härdeman <david@hardeman.nu> Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
David Härdeman
Mauro Carvalho Chehab
parent
e9035152d7
commit
2886f013c3
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@ -154,10 +154,10 @@ static void bttv_input_timer(unsigned long data)
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* testing.
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*/
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#define RC5_START(x) (((x) >> 12) & 3)
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#define RC5_TOGGLE(x) (((x) >> 11) & 1)
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#define RC5_ADDR(x) (((x) >> 6) & 31)
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#define RC5_INSTR(x) ((x) & 63)
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#define RC5_START(x) (((x) >> 12) & 0x03)
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#define RC5_TOGGLE(x) (((x) >> 11) & 0x01)
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#define RC5_ADDR(x) (((x) >> 6) & 0x1f)
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#define RC5_INSTR(x) (((x) >> 0) & 0x3f)
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/* decode raw bit pattern to RC5 code */
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static u32 bttv_rc5_decode(unsigned int code)
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@ -195,8 +195,8 @@ static void bttv_rc5_timer_end(unsigned long data)
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{
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struct bttv_ir *ir = (struct bttv_ir *)data;
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struct timeval tv;
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u32 gap;
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u32 rc5 = 0;
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u32 gap, rc5, scancode;
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u8 toggle, command, system;
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/* get time */
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do_gettimeofday(&tv);
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@ -221,26 +221,29 @@ static void bttv_rc5_timer_end(unsigned long data)
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if (ir->last_bit < 20) {
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/* ignore spurious codes (caused by light/other remotes) */
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dprintk("short code: %x\n", ir->code);
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} else {
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ir->code = (ir->code << ir->shift_by) | 1;
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rc5 = bttv_rc5_decode(ir->code);
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/* two start bits? */
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if (RC5_START(rc5) != ir->start) {
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pr_info(DEVNAME ":"
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" rc5 start bits invalid: %u\n", RC5_START(rc5));
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/* right address? */
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} else if (RC5_ADDR(rc5) == ir->addr) {
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u32 toggle = RC5_TOGGLE(rc5);
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u32 instr = RC5_INSTR(rc5);
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/* Good code */
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rc_keydown(ir->dev, instr, toggle);
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dprintk("instruction %x, toggle %x\n",
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instr, toggle);
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}
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return;
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}
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ir->code = (ir->code << ir->shift_by) | 1;
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rc5 = bttv_rc5_decode(ir->code);
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toggle = RC5_TOGGLE(rc5);
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system = RC5_ADDR(rc5);
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command = RC5_INSTR(rc5);
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switch (RC5_START(rc5)) {
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case 0x3:
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break;
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case 0x2:
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command += 0x40;
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break;
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default:
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return;
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}
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scancode = system << 8 | command;
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rc_keydown(ir->dev, scancode, toggle);
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dprintk("scancode %x, toggle %x\n", scancode, toggle);
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}
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static int bttv_rc5_irq(struct bttv *btv)
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@ -310,8 +313,6 @@ static void bttv_ir_start(struct bttv *btv, struct bttv_ir *ir)
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/* set timer_end for code completion */
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setup_timer(&ir->timer, bttv_rc5_timer_end, (unsigned long)ir);
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ir->shift_by = 1;
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ir->start = 3;
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ir->addr = 0x0;
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ir->rc5_remote_gap = ir_rc5_remote_gap;
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}
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}
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@ -490,8 +491,8 @@ int bttv_input_init(struct bttv *btv)
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ir->polling = 50; // ms
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break;
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case BTTV_BOARD_NEBULA_DIGITV:
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ir_codes = RC_MAP_NEBULA;
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ir->rc5_gpio = true;
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ir_codes = RC_MAP_NEBULA;
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ir->rc5_gpio = true;
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break;
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case BTTV_BOARD_MACHTV_MAGICTV:
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ir_codes = RC_MAP_APAC_VIEWCOMP;
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@ -514,7 +515,8 @@ int bttv_input_init(struct bttv *btv)
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ir->mask_keycode);
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break;
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}
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if (NULL == ir_codes) {
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if (!ir_codes) {
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dprintk("Ooops: IR config error [card=%d]\n", btv->c.type);
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err = -ENODEV;
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goto err_out_free;
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@ -133,8 +133,6 @@ struct bttv_ir {
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u32 polling;
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u32 last_gpio;
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int shift_by;
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int start; // What should RC5_START() be
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int addr; // What RC5_ADDR() should be.
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int rc5_remote_gap;
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/* RC5 gpio */
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@ -14,68 +14,68 @@
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#include <linux/module.h>
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static struct rc_map_table nebula[] = {
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{ 0x00, KEY_0 },
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{ 0x01, KEY_1 },
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{ 0x02, KEY_2 },
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{ 0x03, KEY_3 },
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{ 0x04, KEY_4 },
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{ 0x05, KEY_5 },
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{ 0x06, KEY_6 },
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{ 0x07, KEY_7 },
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{ 0x08, KEY_8 },
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{ 0x09, KEY_9 },
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{ 0x0a, KEY_TV },
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{ 0x0b, KEY_AUX },
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{ 0x0c, KEY_DVD },
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{ 0x0d, KEY_POWER },
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{ 0x0e, KEY_CAMERA }, /* labelled 'Picture' */
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{ 0x0f, KEY_AUDIO },
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{ 0x10, KEY_INFO },
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{ 0x11, KEY_F13 }, /* 16:9 */
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{ 0x12, KEY_F14 }, /* 14:9 */
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{ 0x13, KEY_EPG },
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{ 0x14, KEY_EXIT },
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{ 0x15, KEY_MENU },
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{ 0x16, KEY_UP },
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{ 0x17, KEY_DOWN },
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{ 0x18, KEY_LEFT },
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{ 0x19, KEY_RIGHT },
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{ 0x1a, KEY_ENTER },
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{ 0x1b, KEY_CHANNELUP },
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{ 0x1c, KEY_CHANNELDOWN },
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{ 0x1d, KEY_VOLUMEUP },
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{ 0x1e, KEY_VOLUMEDOWN },
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{ 0x1f, KEY_RED },
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{ 0x20, KEY_GREEN },
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{ 0x21, KEY_YELLOW },
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{ 0x22, KEY_BLUE },
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{ 0x23, KEY_SUBTITLE },
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{ 0x24, KEY_F15 }, /* AD */
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{ 0x25, KEY_TEXT },
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{ 0x26, KEY_MUTE },
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{ 0x27, KEY_REWIND },
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{ 0x28, KEY_STOP },
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{ 0x29, KEY_PLAY },
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{ 0x2a, KEY_FASTFORWARD },
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{ 0x2b, KEY_F16 }, /* chapter */
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{ 0x2c, KEY_PAUSE },
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{ 0x2d, KEY_PLAY },
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{ 0x2e, KEY_RECORD },
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{ 0x2f, KEY_F17 }, /* picture in picture */
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{ 0x30, KEY_KPPLUS }, /* zoom in */
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{ 0x31, KEY_KPMINUS }, /* zoom out */
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{ 0x32, KEY_F18 }, /* capture */
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{ 0x33, KEY_F19 }, /* web */
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{ 0x34, KEY_EMAIL },
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{ 0x35, KEY_PHONE },
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{ 0x36, KEY_PC },
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{ 0x0000, KEY_0 },
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{ 0x0001, KEY_1 },
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{ 0x0002, KEY_2 },
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{ 0x0003, KEY_3 },
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{ 0x0004, KEY_4 },
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{ 0x0005, KEY_5 },
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{ 0x0006, KEY_6 },
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{ 0x0007, KEY_7 },
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{ 0x0008, KEY_8 },
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{ 0x0009, KEY_9 },
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{ 0x000a, KEY_TV },
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{ 0x000b, KEY_AUX },
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{ 0x000c, KEY_DVD },
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{ 0x000d, KEY_POWER },
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{ 0x000e, KEY_CAMERA }, /* labelled 'Picture' */
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{ 0x000f, KEY_AUDIO },
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{ 0x0010, KEY_INFO },
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{ 0x0011, KEY_F13 }, /* 16:9 */
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{ 0x0012, KEY_F14 }, /* 14:9 */
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{ 0x0013, KEY_EPG },
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{ 0x0014, KEY_EXIT },
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{ 0x0015, KEY_MENU },
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{ 0x0016, KEY_UP },
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{ 0x0017, KEY_DOWN },
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{ 0x0018, KEY_LEFT },
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{ 0x0019, KEY_RIGHT },
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{ 0x001a, KEY_ENTER },
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{ 0x001b, KEY_CHANNELUP },
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{ 0x001c, KEY_CHANNELDOWN },
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{ 0x001d, KEY_VOLUMEUP },
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{ 0x001e, KEY_VOLUMEDOWN },
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{ 0x001f, KEY_RED },
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{ 0x0020, KEY_GREEN },
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{ 0x0021, KEY_YELLOW },
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{ 0x0022, KEY_BLUE },
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{ 0x0023, KEY_SUBTITLE },
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{ 0x0024, KEY_F15 }, /* AD */
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{ 0x0025, KEY_TEXT },
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{ 0x0026, KEY_MUTE },
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{ 0x0027, KEY_REWIND },
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{ 0x0028, KEY_STOP },
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{ 0x0029, KEY_PLAY },
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{ 0x002a, KEY_FASTFORWARD },
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{ 0x002b, KEY_F16 }, /* chapter */
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{ 0x002c, KEY_PAUSE },
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{ 0x002d, KEY_PLAY },
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{ 0x002e, KEY_RECORD },
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{ 0x002f, KEY_F17 }, /* picture in picture */
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{ 0x0030, KEY_KPPLUS }, /* zoom in */
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{ 0x0031, KEY_KPMINUS }, /* zoom out */
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{ 0x0032, KEY_F18 }, /* capture */
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{ 0x0033, KEY_F19 }, /* web */
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{ 0x0034, KEY_EMAIL },
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{ 0x0035, KEY_PHONE },
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{ 0x0036, KEY_PC },
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};
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static struct rc_map_list nebula_map = {
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.map = {
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.scan = nebula,
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.size = ARRAY_SIZE(nebula),
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.rc_type = RC_TYPE_UNKNOWN, /* Legacy IR type */
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.rc_type = RC_TYPE_RC5,
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.name = RC_MAP_NEBULA,
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}
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};
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