diff options
Diffstat (limited to 'drivers/media/usb/hdpvr/hdpvr-control.c')
| -rw-r--r-- | drivers/media/usb/hdpvr/hdpvr-control.c | 200 |
1 files changed, 200 insertions, 0 deletions
diff --git a/drivers/media/usb/hdpvr/hdpvr-control.c b/drivers/media/usb/hdpvr/hdpvr-control.c new file mode 100644 index 000000000000..ae8f229d1141 --- /dev/null +++ b/drivers/media/usb/hdpvr/hdpvr-control.c @@ -0,0 +1,200 @@ +/* + * Hauppauge HD PVR USB driver - video 4 linux 2 interface + * + * Copyright (C) 2008 Janne Grunau (j@jannau.net) + * + * 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, version 2. + * + */ + +#include <linux/kernel.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/mutex.h> + +#include <linux/videodev2.h> + +#include <media/v4l2-common.h> + +#include "hdpvr.h" + + +int hdpvr_config_call(struct hdpvr_device *dev, uint value, u8 valbuf) +{ + int ret; + char request_type = 0x38, snd_request = 0x01; + + mutex_lock(&dev->usbc_mutex); + dev->usbc_buf[0] = valbuf; + ret = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + snd_request, 0x00 | request_type, + value, CTRL_DEFAULT_INDEX, + dev->usbc_buf, 1, 10000); + + mutex_unlock(&dev->usbc_mutex); + v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, + "config call request for value 0x%x returned %d\n", value, + ret); + + return ret < 0 ? ret : 0; +} + +struct hdpvr_video_info *get_video_info(struct hdpvr_device *dev) +{ + struct hdpvr_video_info *vidinf = NULL; +#ifdef HDPVR_DEBUG + char print_buf[15]; +#endif + int ret; + + vidinf = kzalloc(sizeof(struct hdpvr_video_info), GFP_KERNEL); + if (!vidinf) { + v4l2_err(&dev->v4l2_dev, "out of memory\n"); + goto err; + } + + mutex_lock(&dev->usbc_mutex); + ret = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + 0x81, 0x80 | 0x38, + 0x1400, 0x0003, + dev->usbc_buf, 5, + 1000); + if (ret == 5) { + vidinf->width = dev->usbc_buf[1] << 8 | dev->usbc_buf[0]; + vidinf->height = dev->usbc_buf[3] << 8 | dev->usbc_buf[2]; + vidinf->fps = dev->usbc_buf[4]; + } + +#ifdef HDPVR_DEBUG + if (hdpvr_debug & MSG_INFO) { + hex_dump_to_buffer(dev->usbc_buf, 5, 16, 1, print_buf, + sizeof(print_buf), 0); + v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, + "get video info returned: %d, %s\n", ret, print_buf); + } +#endif + mutex_unlock(&dev->usbc_mutex); + + if (!vidinf->width || !vidinf->height || !vidinf->fps) { + kfree(vidinf); + vidinf = NULL; + } +err: + return vidinf; +} + +int get_input_lines_info(struct hdpvr_device *dev) +{ +#ifdef HDPVR_DEBUG + char print_buf[9]; +#endif + int ret, lines; + + mutex_lock(&dev->usbc_mutex); + ret = usb_control_msg(dev->udev, + usb_rcvctrlpipe(dev->udev, 0), + 0x81, 0x80 | 0x38, + 0x1800, 0x0003, + dev->usbc_buf, 3, + 1000); + +#ifdef HDPVR_DEBUG + if (hdpvr_debug & MSG_INFO) { + hex_dump_to_buffer(dev->usbc_buf, 3, 16, 1, print_buf, + sizeof(print_buf), 0); + v4l2_dbg(MSG_INFO, hdpvr_debug, &dev->v4l2_dev, + "get input lines info returned: %d, %s\n", ret, + print_buf); + } +#else + (void)ret; /* suppress compiler warning */ +#endif + lines = dev->usbc_buf[1] << 8 | dev->usbc_buf[0]; + mutex_unlock(&dev->usbc_mutex); + return lines; +} + + +int hdpvr_set_bitrate(struct hdpvr_device *dev) +{ + int ret; + + mutex_lock(&dev->usbc_mutex); + memset(dev->usbc_buf, 0, 4); + dev->usbc_buf[0] = dev->options.bitrate; + dev->usbc_buf[2] = dev->options.peak_bitrate; + + ret = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + 0x01, 0x38, CTRL_BITRATE_VALUE, + CTRL_DEFAULT_INDEX, dev->usbc_buf, 4, 1000); + mutex_unlock(&dev->usbc_mutex); + + return ret; +} + +int hdpvr_set_audio(struct hdpvr_device *dev, u8 input, + enum v4l2_mpeg_audio_encoding codec) +{ + int ret = 0; + + if (dev->flags & HDPVR_FLAG_AC3_CAP) { + mutex_lock(&dev->usbc_mutex); + memset(dev->usbc_buf, 0, 2); + dev->usbc_buf[0] = input; + if (codec == V4L2_MPEG_AUDIO_ENCODING_AAC) + dev->usbc_buf[1] = 0; + else if (codec == V4L2_MPEG_AUDIO_ENCODING_AC3) + dev->usbc_buf[1] = 1; + else { + mutex_unlock(&dev->usbc_mutex); + v4l2_err(&dev->v4l2_dev, "invalid audio codec %d\n", + codec); + ret = -EINVAL; + goto error; + } + + ret = usb_control_msg(dev->udev, + usb_sndctrlpipe(dev->udev, 0), + 0x01, 0x38, CTRL_AUDIO_INPUT_VALUE, + CTRL_DEFAULT_INDEX, dev->usbc_buf, 2, + 1000); + mutex_unlock(&dev->usbc_mutex); + if (ret == 2) + ret = 0; + } else + ret = hdpvr_config_call(dev, CTRL_AUDIO_INPUT_VALUE, input); +error: + return ret; +} + +int hdpvr_set_options(struct hdpvr_device *dev) +{ + hdpvr_config_call(dev, CTRL_VIDEO_STD_TYPE, dev->options.video_std); + + hdpvr_config_call(dev, CTRL_VIDEO_INPUT_VALUE, + dev->options.video_input+1); + + hdpvr_set_audio(dev, dev->options.audio_input+1, + dev->options.audio_codec); + + hdpvr_set_bitrate(dev); + hdpvr_config_call(dev, CTRL_BITRATE_MODE_VALUE, + dev->options.bitrate_mode); + hdpvr_config_call(dev, CTRL_GOP_MODE_VALUE, dev->options.gop_mode); + + hdpvr_config_call(dev, CTRL_BRIGHTNESS, dev->options.brightness); + hdpvr_config_call(dev, CTRL_CONTRAST, dev->options.contrast); + hdpvr_config_call(dev, CTRL_HUE, dev->options.hue); + hdpvr_config_call(dev, CTRL_SATURATION, dev->options.saturation); + hdpvr_config_call(dev, CTRL_SHARPNESS, dev->options.sharpness); + + return 0; +} |