diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-input.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-input.c | 83 |
1 files changed, 61 insertions, 22 deletions
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c index 7a0fe3816e3d..af0d935c29be 100644 --- a/drivers/media/video/em28xx/em28xx-input.c +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -70,6 +70,7 @@ struct em28xx_IR { int polling; struct delayed_work work; unsigned int last_toggle:1; + unsigned int full_code:1; unsigned int last_readcount; unsigned int repeat_interval; @@ -111,10 +112,13 @@ int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) { unsigned char buf[2]; - unsigned char code; + u16 code; + int size; /* poll IR chip */ - if (2 != i2c_master_recv(ir->c, buf, 2)) + size = i2c_master_recv(ir->c, buf, sizeof(buf)); + + if (size != 2) return -EIO; /* Does eliminate repeated parity code */ @@ -123,16 +127,30 @@ int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) ir->old = buf[1]; - /* Rearranges bits to the right order */ - code = ((buf[0]&0x01)<<5) | /* 0010 0000 */ - ((buf[0]&0x02)<<3) | /* 0001 0000 */ - ((buf[0]&0x04)<<1) | /* 0000 1000 */ - ((buf[0]&0x08)>>1) | /* 0000 0100 */ - ((buf[0]&0x10)>>3) | /* 0000 0010 */ - ((buf[0]&0x20)>>5); /* 0000 0001 */ - - i2cdprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x)\n", - code, buf[0]); + /* + * Rearranges bits to the right order. + * The bit order were determined experimentally by using + * The original Hauppauge Grey IR and another RC5 that uses addr=0x08 + * The RC5 code has 14 bits, but we've experimentally determined + * the meaning for only 11 bits. + * So, the code translation is not complete. Yet, it is enough to + * work with the provided RC5 IR. + */ + code = + ((buf[0] & 0x01) ? 0x0020 : 0) | /* 0010 0000 */ + ((buf[0] & 0x02) ? 0x0010 : 0) | /* 0001 0000 */ + ((buf[0] & 0x04) ? 0x0008 : 0) | /* 0000 1000 */ + ((buf[0] & 0x08) ? 0x0004 : 0) | /* 0000 0100 */ + ((buf[0] & 0x10) ? 0x0002 : 0) | /* 0000 0010 */ + ((buf[0] & 0x20) ? 0x0001 : 0) | /* 0000 0001 */ + ((buf[1] & 0x08) ? 0x1000 : 0) | /* 0001 0000 */ + ((buf[1] & 0x10) ? 0x0800 : 0) | /* 0000 1000 */ + ((buf[1] & 0x20) ? 0x0400 : 0) | /* 0000 0100 */ + ((buf[1] & 0x40) ? 0x0200 : 0) | /* 0000 0010 */ + ((buf[1] & 0x80) ? 0x0100 : 0); /* 0000 0001 */ + + i2cdprintk("ir hauppauge (em2840): code=0x%02x (rcv=0x%02x%02x)\n", + code, buf[1], buf[0]); /* return key */ *ir_key = code; @@ -246,9 +264,10 @@ static void em28xx_ir_handle_key(struct em28xx_IR *ir) return; } - dprintk("ir->get_key result tb=%02x rc=%02x lr=%02x data=%02x\n", + dprintk("ir->get_key result tb=%02x rc=%02x lr=%02x data=%02x%02x\n", poll_result.toggle_bit, poll_result.read_count, - ir->last_readcount, poll_result.rc_data[0]); + ir->last_readcount, poll_result.rc_address, + poll_result.rc_data[0]); if (ir->dev->chip_id == CHIP_ID_EM2874) { /* The em2874 clears the readcount field every time the @@ -282,8 +301,15 @@ static void em28xx_ir_handle_key(struct em28xx_IR *ir) if (do_sendkey) { dprintk("sending keypress\n"); - ir_input_keydown(ir->input, &ir->ir, poll_result.rc_data[0], - poll_result.rc_data[0]); + + if (ir->full_code) + ir_input_keydown(ir->input, &ir->ir, + poll_result.rc_address << 8 | + poll_result.rc_data[0]); + else + ir_input_keydown(ir->input, &ir->ir, + poll_result.rc_data[0]); + ir_input_nokey(ir->input, &ir->ir); } @@ -328,6 +354,19 @@ int em28xx_ir_init(struct em28xx *dev) goto err_out_free; ir->input = input_dev; + ir_config = EM2874_IR_RC5; + + /* Adjust xclk based o IR table for RC5/NEC tables */ + if (dev->board.ir_codes->ir_type == IR_TYPE_RC5) { + dev->board.xclk |= EM28XX_XCLK_IR_RC5_MODE; + ir->full_code = 1; + } else if (dev->board.ir_codes->ir_type == IR_TYPE_NEC) { + dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE; + ir_config = EM2874_IR_NEC; + ir->full_code = 1; + } + em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk, + EM28XX_XCLK_IR_RC5_MODE); /* Setup the proper handler based on the chip */ switch (dev->chip_id) { @@ -337,8 +376,6 @@ int em28xx_ir_init(struct em28xx *dev) break; case CHIP_ID_EM2874: ir->get_key = em2874_polling_getkey; - /* For now we only support RC5, so enable it */ - ir_config = EM2874_IR_RC5; em28xx_write_regs(dev, EM2874_R50_IR_CONFIG, &ir_config, 1); break; default: @@ -356,7 +393,10 @@ int em28xx_ir_init(struct em28xx *dev) usb_make_path(dev->udev, ir->phys, sizeof(ir->phys)); strlcat(ir->phys, "/input0", sizeof(ir->phys)); - ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER, dev->board.ir_codes); + err = ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER); + if (err < 0) + goto err_out_free; + input_dev->name = ir->name; input_dev->phys = ir->phys; input_dev->id.bustype = BUS_USB; @@ -372,7 +412,7 @@ int em28xx_ir_init(struct em28xx *dev) em28xx_ir_start(ir); /* all done */ - err = input_register_device(ir->input); + err = ir_input_register(ir->input, dev->board.ir_codes); if (err) goto err_out_stop; @@ -381,7 +421,6 @@ int em28xx_ir_init(struct em28xx *dev) em28xx_ir_stop(ir); dev->ir = NULL; err_out_free: - input_free_device(input_dev); kfree(ir); return err; } @@ -395,7 +434,7 @@ int em28xx_ir_fini(struct em28xx *dev) return 0; em28xx_ir_stop(ir); - input_unregister_device(ir->input); + ir_input_unregister(ir->input); kfree(ir); /* done */ |