diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx-input.c')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx-input.c | 131 |
1 files changed, 101 insertions, 30 deletions
diff --git a/drivers/media/video/em28xx/em28xx-input.c b/drivers/media/video/em28xx/em28xx-input.c index af0d935c29be..5c3fd9411b1f 100644 --- a/drivers/media/video/em28xx/em28xx-input.c +++ b/drivers/media/video/em28xx/em28xx-input.c @@ -27,6 +27,7 @@ #include <linux/interrupt.h> #include <linux/input.h> #include <linux/usb.h> +#include <linux/slab.h> #include "em28xx.h" @@ -38,6 +39,8 @@ static unsigned int ir_debug; module_param(ir_debug, int, 0644); MODULE_PARM_DESC(ir_debug, "enable debug messages [IR]"); +#define MODULE_NAME "em28xx" + #define i2cdprintk(fmt, arg...) \ if (ir_debug) { \ printk(KERN_DEBUG "%s/ir: " fmt, ir->name , ## arg); \ @@ -75,6 +78,10 @@ struct em28xx_IR { unsigned int repeat_interval; int (*get_key)(struct em28xx_IR *, struct em28xx_ir_poll_result *); + + /* IR device properties */ + + struct ir_dev_props props; }; /********************************************************** @@ -180,6 +187,36 @@ int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, return 1; } +int em28xx_get_key_winfast_usbii_deluxe(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw) +{ + unsigned char subaddr, keydetect, key; + + struct i2c_msg msg[] = { { .addr = ir->c->addr, .flags = 0, .buf = &subaddr, .len = 1}, + + { .addr = ir->c->addr, .flags = I2C_M_RD, .buf = &keydetect, .len = 1} }; + + subaddr = 0x10; + if (2 != i2c_transfer(ir->c->adapter, msg, 2)) { + i2cdprintk("read error\n"); + return -EIO; + } + if (keydetect == 0x00) + return 0; + + subaddr = 0x00; + msg[1].buf = &key; + if (2 != i2c_transfer(ir->c->adapter, msg, 2)) { + i2cdprintk("read error\n"); + return -EIO; + } + if (key == 0x00) + return 0; + + *ir_key = key; + *ir_raw = key; + return 1; +} + /********************************************************** Poll based get keycode functions **********************************************************/ @@ -325,46 +362,42 @@ static void em28xx_ir_work(struct work_struct *work) schedule_delayed_work(&ir->work, msecs_to_jiffies(ir->polling)); } -static void em28xx_ir_start(struct em28xx_IR *ir) +static int em28xx_ir_start(void *priv) { + struct em28xx_IR *ir = priv; + INIT_DELAYED_WORK(&ir->work, em28xx_ir_work); schedule_delayed_work(&ir->work, 0); + + return 0; } -static void em28xx_ir_stop(struct em28xx_IR *ir) +static void em28xx_ir_stop(void *priv) { + struct em28xx_IR *ir = priv; + cancel_delayed_work_sync(&ir->work); } -int em28xx_ir_init(struct em28xx *dev) +int em28xx_ir_change_protocol(void *priv, u64 ir_type) { - struct em28xx_IR *ir; - struct input_dev *input_dev; - u8 ir_config; - int err = -ENOMEM; - - if (dev->board.ir_codes == NULL) { - /* No remote control support */ - return 0; - } - - ir = kzalloc(sizeof(*ir), GFP_KERNEL); - input_dev = input_allocate_device(); - if (!ir || !input_dev) - goto err_out_free; - - ir->input = input_dev; - ir_config = EM2874_IR_RC5; + int rc = 0; + struct em28xx_IR *ir = priv; + struct em28xx *dev = ir->dev; + u8 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) { + + if (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) { + } else if (ir_type == IR_TYPE_NEC) { dev->board.xclk &= ~EM28XX_XCLK_IR_RC5_MODE; ir_config = EM2874_IR_NEC; ir->full_code = 1; - } + } else if (ir_type != IR_TYPE_UNKNOWN) + rc = -EINVAL; + em28xx_write_reg_bits(dev, EM28XX_R0F_XCLK, dev->board.xclk, EM28XX_XCLK_IR_RC5_MODE); @@ -380,9 +413,49 @@ int em28xx_ir_init(struct em28xx *dev) break; default: printk("Unrecognized em28xx chip id: IR not supported\n"); - goto err_out_free; + rc = -EINVAL; + } + + return rc; +} + +int em28xx_ir_init(struct em28xx *dev) +{ + struct em28xx_IR *ir; + struct input_dev *input_dev; + int err = -ENOMEM; + + if (dev->board.ir_codes == NULL) { + /* No remote control support */ + return 0; } + ir = kzalloc(sizeof(*ir), GFP_KERNEL); + input_dev = input_allocate_device(); + if (!ir || !input_dev) + goto err_out_free; + + /* record handles to ourself */ + ir->dev = dev; + dev->ir = ir; + + ir->input = input_dev; + + /* + * em2874 supports more protocols. For now, let's just announce + * the two protocols that were already tested + */ + ir->props.allowed_protos = IR_TYPE_RC5 | IR_TYPE_NEC; + ir->props.priv = ir; + ir->props.change_protocol = em28xx_ir_change_protocol; + ir->props.open = em28xx_ir_start; + ir->props.close = em28xx_ir_stop; + + /* By default, keep protocol field untouched */ + err = em28xx_ir_change_protocol(ir, IR_TYPE_UNKNOWN); + if (err) + goto err_out_free; + /* This is how often we ask the chip for IR information */ ir->polling = 100; /* ms */ @@ -393,6 +466,7 @@ int em28xx_ir_init(struct em28xx *dev) usb_make_path(dev->udev, ir->phys, sizeof(ir->phys)); strlcat(ir->phys, "/input0", sizeof(ir->phys)); + /* Set IR protocol */ err = ir_input_init(input_dev, &ir->ir, IR_TYPE_OTHER); if (err < 0) goto err_out_free; @@ -405,20 +479,17 @@ int em28xx_ir_init(struct em28xx *dev) input_dev->id.product = le16_to_cpu(dev->udev->descriptor.idProduct); input_dev->dev.parent = &dev->udev->dev; - /* record handles to ourself */ - ir->dev = dev; - dev->ir = ir; - em28xx_ir_start(ir); + /* all done */ - err = ir_input_register(ir->input, dev->board.ir_codes); + err = ir_input_register(ir->input, dev->board.ir_codes, + &ir->props, MODULE_NAME); if (err) goto err_out_stop; return 0; err_out_stop: - em28xx_ir_stop(ir); dev->ir = NULL; err_out_free: kfree(ir); |