This is the header file for the smi2021 module. Signed-off-by: Jon Arne Jørgensen <jona...@jonarne.no> --- drivers/media/usb/smi2021/smi2021.h | 228 ++++++++++++++++++++++++++++++++++++ 1 file changed, 228 insertions(+) create mode 100644 drivers/media/usb/smi2021/smi2021.h
diff --git a/drivers/media/usb/smi2021/smi2021.h b/drivers/media/usb/smi2021/smi2021.h new file mode 100644 index 0000000..eba0fef --- /dev/null +++ b/drivers/media/usb/smi2021/smi2021.h @@ -0,0 +1,228 @@ +/******************************************************************************* + * smi2021.h * + * * + * USB Driver for SMI2021 - EasyCap * + * USB ID 1c88:003c * + * * + * ***************************************************************************** + * + * Copyright 2011-2013 Jon Arne Jørgensen + * <jonjon.arnearne--a.t--gmail.com> + * + * Copyright 2011, 2012 Tony Brown, Michal Demin, Jeffry Johnston + * + * This file is part of SMI2021 + * http://code.google.com/p/easycap-somagic-linux/ + * + * 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, see <http://www.gnu.org/licenses/>. + * + * This driver is heavily influensed by the STK1160 driver. + * Copyright (C) 2012 Ezequiel Garcia + * <elezegarcia--a.t--gmail.com> + * + */ + +#ifndef SMI2021_H +#define SMI2021_H + +#include <linux/module.h> +#include <linux/usb.h> +#include <linux/types.h> +#include <linux/spinlock_types.h> +#include <linux/slab.h> +#include <linux/i2c.h> + +#include <media/v4l2-event.h> +#include <media/v4l2-device.h> +#include <media/v4l2-ioctl.h> +#include <media/v4l2-ctrls.h> +#include <media/v4l2-chip-ident.h> +#include <media/videobuf2-core.h> +#include <media/videobuf2-vmalloc.h> +#include <media/saa7115.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/pcm_params.h> +#include <sound/initval.h> + +#define SMI2021_DRIVER_VERSION "0.1" + +/* For ISOC */ +#define SMI2021_MAX_PKT_SIZE 3072 +#define SMI2021_ISOC_PACKETS 10 /* 64 */ +#define SMI2021_ISOC_BUFS 4 /* 16 */ +#define SMI2021_ISOC_EP 0x82 + +/* The structure of the array we use to send i2c settings to the device */ +#define SMI2021_CTRL_HEAD 0x00 +#define SMI2021_CTRL_ADDR 0x01 +#define SMI2021_CTRL_BM_DATA_TYPE 0x02 +#define SMI2021_CTRL_BM_DATA_OFFSET 0x03 +#define SMI2021_CTRL_DATA_SIZE 0x04 + +#define SMI2021_CTRL_REG_HI 0x05 +#define SMI2021_CTRL_REG_LO 0x06 +#define SMI2021_CTRL_REG_VAL 0x07 + +#define SMI2021_CTRL_I2C_REG 0x05 +#define SMI2021_CTRL_I2C_VAL 0x06 +#define SMI2021_CTRL_I2C_RCV_VAL 0x05 + +/* General video constants */ +#define SMI2021_BYTES_PER_LINE 1440 +#define SMI2021_PAL_LINES 576 +#define SMI2021_NTSC_LINES 486 + +/* Timing Referance Codes, see saa7113 datasheet */ +#define SMI2021_TRC_EAV 0x10 +#define SMI2021_TRC_VBI 0x20 +#define SMI2021_TRC_FIELD_2 0x40 +#define SMI2021_TRC 0x80 + +#define DEBUG +#ifdef DEBUG +#define smi2021_dbg(fmt, args...) \ + pr_debug("smi2021::%s: " fmt, __func__, \ + ##args) +#else +#define smi2021_dbg(fmt, args...) +#endif + +#define smi2021_info(fmt, args...) \ + pr_info("smi2021::%s: " fmt, \ + __func__, ##args) + +#define smi2021_warn(fmt, args...) \ + pr_warn("smi2021::%s: " fmt, \ + __func__, ##args) + +#define smi2021_err(fmt, args...) \ + pr_err("smi2021::%s: " fmt, \ + __func__, ##args) + +enum smi2021_sync { + HSYNC, + SYNCZ1, + SYNCZ2, + TRC +}; + +/* Buffer for one video frame */ +struct smi2021_buffer { + /* Common vb2 stuff, must be first */ + struct vb2_buffer vb; + struct list_head list; + + void *mem; + unsigned int length; + + bool second_field; + bool in_blank; + unsigned int pos; + + /* ActiveVideo - Line counter */ + u16 trc_av; +}; + +struct smi2021_isoc_ctl { + int max_pkt_size; + int num_bufs; + struct urb **urb; + char **transfer_buffer; + struct smi2021_buffer *buf; +}; + + +struct smi2021_fmt { + char *name; + u32 fourcc; + int depth; +}; + +struct smi2021_input { + char *name; + int type; +}; + +struct smi2021_dev { + struct v4l2_device v4l2_dev; + struct video_device vdev; + struct v4l2_ctrl_handler ctrl_handler; + + struct v4l2_subdev *sd_saa7113; + + struct usb_device *udev; + struct device *dev; + + /* Capture buffer queue */ + struct vb2_queue vb_vidq; + + /* ISOC control struct */ + struct list_head avail_bufs; + struct smi2021_isoc_ctl isoc_ctl; + + int width; /* frame width */ + int height; /* frame height */ + unsigned int ctl_input; /* selected input */ + v4l2_std_id norm; /* current norm */ + struct smi2021_fmt *fmt; /* selected format */ + unsigned int buf_count; /* for video buffers */ + + /* i2c i/o */ + struct i2c_adapter i2c_adap; + struct i2c_client i2c_client; + + struct mutex v4l2_lock; + struct mutex vb_queue_lock; + spinlock_t buf_lock; + + enum smi2021_sync sync_state; + + /* audio */ + struct snd_card *snd_card; + struct snd_pcm_substream *pcm_substream; + + unsigned int pcm_write_ptr; + unsigned int pcm_complete_samples; + + u8 pcm_read_offset; + struct work_struct adev_capture_trigger; + atomic_t adev_capturing; +}; + +/* Provided by smi2021_main.c */ +int smi2021_write_reg(struct smi2021_dev *dev, u8 addr, u16 reg, u8 val); +int smi2021_read_reg(struct smi2021_dev *dev, u8 addr, u16 reg, u8 *val); + +/* Provided by smi2021_v4l2.c */ +int smi2021_vb2_setup(struct smi2021_dev *dev); +int smi2021_video_register(struct smi2021_dev *dev); +void smi2021_clear_queue(struct smi2021_dev *dev); + +/* Provided by smi2021_video.c */ +int smi2021_alloc_isoc(struct smi2021_dev *dev); +void smi2021_free_isoc(struct smi2021_dev *dev); +void smi2021_cancel_isoc(struct smi2021_dev *dev); +void smi2021_uninit_isoc(struct smi2021_dev *dev); + +/* Provided by smi2021_i2c.c */ +int smi2021_i2c_register(struct smi2021_dev *dev); +int smi2021_i2c_unregister(struct smi2021_dev *dev); + +/* Provided by smi2021_audio.c */ +int smi2021_snd_register(struct smi2021_dev *dev); +void smi2021_snd_unregister(struct smi2021_dev *dev); +void smi2021_audio(struct smi2021_dev *dev, u8 *data, int len); +#endif /* SMI2021_H */ -- 1.8.1.1 -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
