On Thu, Mar 14, 2013 at 03:06:57PM +0100, Jon Arne Jørgensen wrote: > 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/ > + *
I'm not sure how helpful it is to add external references. Keep in mind that once mainlined, this driver will quickly evolve and the external link can get outdated/removed/deprecated, etc. > + * 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. > + * Please note Linux kernel preferes GPL v2 *only*, and not any later (although I'm not a lawyer). > + * 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> Cool ;-) > + * > + */ > + > +#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 > -- Ezequiel García, Free Electrons Embedded Linux, Kernel and Android Engineering http://free-electrons.com -- 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
