diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx.h | 479 |
1 files changed, 479 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h new file mode 100644 index 0000000..7779121 --- /dev/null +++ b/drivers/media/video/em28xx/em28xx.h @@ -0,0 +1,479 @@ +/* + em2820-cards.c - driver for Empia EM2820/2840 USB video capture devices + + Copyright (C) 2005 Markus Rechberger <mrechberger@gmail.com> + Ludovico Cavedon <cavedon@sssup.it> + Mauro Carvalho Chehab <mchehab@brturbo.com.br> + + Based on the em2800 driver from Sascha Sommer <saschasommer@freenet.de> + + 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, write to the Free Software + Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#ifndef _EM2820_H +#define _EM2820_H + +#include <linux/videodev.h> +#include <linux/i2c.h> + +/* maximum number of frames that can be queued */ +#define EM2820_NUM_FRAMES 5 +/* number of frames that get used for v4l2_read() */ +#define EM2820_NUM_READ_FRAMES 2 + +/* number of buffers for isoc transfers */ +#define EM2820_NUM_BUFS 5 + +/* number of packets for each buffer */ +// windows requests only 40 packets .. so we better do the same +// this is what I found out for all alternate numbers there! + +#define EM2820_NUM_PACKETS 40 + +/* packet size for each packet */ +/* no longer needed: read from endpoint descriptor */ +//#define EM2820_MAX_PACKET_SIZE 3072 //7 +//#define EM2820_MAX_PACKET_SIZE 2892 //6 +//#define EM2820_MAX_PACKET_SIZE 2580 //5 +//#define EM2820_MAX_PACKET_SIZE 1448 //2 + +/* default alternate; 0 means choose the best */ +#define EM2820_PINOUT 0 +#define EM2820_MAX_ALT 7 + +#define EM2820_INTERLACED_DEFAULT 1 + +/* +#define (use usbview if you want to get the other alternate number infos) +#define +#define alternate number 2 +#define Endpoint Address: 82 + Direction: in + Attribute: 1 + Type: Isoc + Max Packet Size: 1448 + Interval: 125us + + alternate number 7 + + Endpoint Address: 82 + Direction: in + Attribute: 1 + Type: Isoc + Max Packet Size: 3072 + Interval: 125us +*/ + +/* time to wait when stopping the isoc transfer */ +#define EM2820_URB_TIMEOUT msecs_to_jiffies(EM2820_NUM_BUFS * EM2820_NUM_PACKETS) + +/* the various frame states */ +enum em2820_frame_state { + F_UNUSED = 0, + F_QUEUED, + F_GRABBING, + F_DONE, + F_ERROR, +}; + +/* stream states */ +enum em2820_stream_state { + STREAM_OFF, + STREAM_INTERRUPT, + STREAM_ON, +}; + +/* frames */ +struct em2820_frame_t { + void *bufmem; + struct v4l2_buffer buf; + enum em2820_frame_state state; + struct list_head frame; + unsigned long vma_use_count; + int top_field; + int fieldbytesused; +}; + +/* io methods */ +enum em2820_io_method { + IO_NONE, + IO_READ, + IO_MMAP, +}; + +/* inputs */ + +#define MAX_EM2820_INPUT 4 +enum enum2820_itype { + EM2820_VMUX_COMPOSITE1 = 1, + EM2820_VMUX_COMPOSITE2, + EM2820_VMUX_COMPOSITE3, + EM2820_VMUX_COMPOSITE4, + EM2820_VMUX_SVIDEO, + EM2820_VMUX_TELEVISION, + EM2820_VMUX_CABLE, + EM2820_VMUX_DVB, + EM2820_VMUX_DEBUG, + EM2820_RADIO, +}; + +struct em2820_input { + enum enum2820_itype type; + unsigned int vmux; + unsigned int amux; +}; + +#define INPUT(nr) (&em2820_boards[dev->model].input[nr]) + +enum em2820_decoder { + EM2820_TVP5150, + EM2820_SAA7113, + EM2820_SAA7114 +}; + +struct em2820_board { + char *name; + + int vchannels; + int norm; + int tuner_type; + + /* i2c flags */ + unsigned int tda9887_conf; + + unsigned int has_tuner:1; + unsigned int has_msp34xx:1; + + enum em2820_decoder decoder; + + struct em2820_input input[MAX_EM2820_INPUT]; +}; + +struct em2820_eeprom { + u32 id; /* 0x9567eb1a */ + u16 vendor_ID; + u16 product_ID; + + u16 chip_conf; + + u16 board_conf; + + u16 string1, string2, string3; + + u8 string_idx_table; +}; + +/* device states */ +enum em2820_dev_state { + DEV_INITIALIZED = 0x01, + DEV_DISCONNECTED = 0x02, + DEV_MISCONFIGURED = 0x04, +}; + +/* tvnorms */ +struct em2820_tvnorm { + char *name; + v4l2_std_id id; + /* mode for saa7113h */ + int mode; +}; + +/* main device struct */ +struct em2820 { + /* generic device properties */ + char name[30]; /* name (including minor) of the device */ + int model; /* index in the device_data struct */ + int video_inputs; /* number of video inputs */ + unsigned int has_tuner:1; + unsigned int has_msp34xx:1; + unsigned int has_tda9887:1; + + enum em2820_decoder decoder; + + int tuner_type; /* type of the tuner */ + int tuner_addr; /* tuner address */ + int tda9887_conf; + /* i2c i/o */ + struct i2c_adapter i2c_adap; + struct i2c_client i2c_client; + /* video for linux */ + int users; /* user count for exclusive use */ + struct video_device *vdev; /* video for linux device struct */ + struct video_picture vpic; /* picture settings only used to init saa7113h */ + struct em2820_tvnorm *tvnorm; /* selected tv norm */ + int ctl_freq; /* selected frequency */ + unsigned int ctl_input; /* selected input */ + unsigned int ctl_ainput; /* slected audio input */ + int mute; + int volume; + /* frame properties */ + struct em2820_frame_t frame[EM2820_NUM_FRAMES]; /* list of frames */ + int num_frames; /* number of frames currently in use */ + unsigned int frame_count; /* total number of transfered frames */ + struct em2820_frame_t *frame_current; /* the frame that is being filled */ + int width; /* current frame width */ + int height; /* current frame height */ + int frame_size; /* current frame size */ + int field_size; /* current field size */ + int bytesperline; + int hscale; /* horizontal scale factor (see datasheet) */ + int vscale; /* vertical scale factor (see datasheet) */ + int interlaced; /* 1=interlace fileds, 0=just top fileds */ + int type; + + /* states */ + enum em2820_dev_state state; + enum em2820_stream_state stream; + enum em2820_io_method io; + /* locks */ + struct semaphore lock, fileop_lock; + spinlock_t queue_lock; + struct list_head inqueue, outqueue; + wait_queue_head_t open, wait_frame, wait_stream; + struct video_device *vbi_dev; + + unsigned char eedata[256]; + + /* usb transfer */ + struct usb_device *udev; /* the usb device */ + int alt; /* alternate */ + int max_pkt_size; /* max packet size of isoc transaction */ + unsigned int alt_max_pkt_size[EM2820_MAX_ALT + 1]; /* array of wMaxPacketSize */ + struct urb *urb[EM2820_NUM_BUFS]; /* urb for isoc transfers */ + char *transfer_buffer[EM2820_NUM_BUFS]; /* transfer buffers for isoc transfer */ + /* helper funcs that call usb_control_msg */ + int (*em2820_write_regs) (struct em2820 * dev, u16 reg, char *buf, + int len); + int (*em2820_read_reg) (struct em2820 * dev, u16 reg); + int (*em2820_read_reg_req_len) (struct em2820 * dev, u8 req, u16 reg, + char *buf, int len); + int (*em2820_write_regs_req) (struct em2820 * dev, u8 req, u16 reg, + char *buf, int len); + int (*em2820_read_reg_req) (struct em2820 * dev, u8 req, u16 reg); +}; + +/* Provided by em2820-i2c.c */ + +void em2820_i2c_call_clients(struct em2820 *dev, unsigned int cmd, void *arg); +int em2820_i2c_register(struct em2820 *dev); +int em2820_i2c_unregister(struct em2820 *dev); + +/* Provided by em2820-core.c */ + +void em2820_print_ioctl(char *name, unsigned int cmd); + +u32 em2820_request_buffers(struct em2820 *dev, u32 count); +void em2820_queue_unusedframes(struct em2820 *dev); +void em2820_release_buffers(struct em2820 *dev); + +int em2820_read_reg_req_len(struct em2820 *dev, u8 req, u16 reg, + char *buf, int len); +int em2820_read_reg_req(struct em2820 *dev, u8 req, u16 reg); +int em2820_read_reg(struct em2820 *dev, u16 reg); +int em2820_write_regs_req(struct em2820 *dev, u8 req, u16 reg, char *buf, + int len); +int em2820_write_regs(struct em2820 *dev, u16 reg, char *buf, int len); +int em2820_write_reg_bits(struct em2820 *dev, u16 reg, u8 val, + u8 bitmask); +int em2820_write_ac97(struct em2820 *dev, u8 reg, u8 * val); +int em2820_audio_analog_set(struct em2820 *dev); +int em2820_colorlevels_set_default(struct em2820 *dev); +int em2820_capture_start(struct em2820 *dev, int start); +int em2820_outfmt_set_yuv422(struct em2820 *dev); +int em2820_accumulator_set(struct em2820 *dev, u8 xmin, u8 xmax, u8 ymin, + u8 ymax); +int em2820_capture_area_set(struct em2820 *dev, u8 hstart, u8 vstart, + u16 width, u16 height); +int em2820_scaler_set(struct em2820 *dev, u16 h, u16 v); +int em2820_resolution_set(struct em2820 *dev); +void em2820_isocIrq(struct urb *urb, struct pt_regs *regs); +int em2820_init_isoc(struct em2820 *dev); +void em2820_uninit_isoc(struct em2820 *dev); +int em2820_set_alternate(struct em2820 *dev); + +/* Provided by em2820-cards.c */ +extern void em2820_card_setup(struct em2820 *dev); +extern struct em2820_board em2820_boards[]; +extern struct usb_device_id em2820_id_table[]; + +/* em2820 registers */ +#define USBSUSP_REG 0x0c /* */ + +#define AUDIOSRC_REG 0x0e +#define XCLK_REG 0x0f + +#define VINMODE_REG 0x10 +#define VINCTRL_REG 0x11 +#define VINENABLE_REG 0x12 /* */ + +#define GAMMA_REG 0x14 +#define RGAIN_REG 0x15 +#define GGAIN_REG 0x16 +#define BGAIN_REG 0x17 +#define ROFFSET_REG 0x18 +#define GOFFSET_REG 0x19 +#define BOFFSET_REG 0x1a + +#define OFLOW_REG 0x1b +#define HSTART_REG 0x1c +#define VSTART_REG 0x1d +#define CWIDTH_REG 0x1e +#define CHEIGHT_REG 0x1f + +#define YGAIN_REG 0x20 +#define YOFFSET_REG 0x21 +#define UVGAIN_REG 0x22 +#define UOFFSET_REG 0x23 +#define VOFFSET_REG 0x24 +#define SHARPNESS_REG 0x25 + +#define COMPR_REG 0x26 +#define OUTFMT_REG 0x27 + +#define XMIN_REG 0x28 +#define XMAX_REG 0x29 +#define YMIN_REG 0x2a +#define YMAX_REG 0x2b + +#define HSCALELOW_REG 0x30 +#define HSCALEHIGH_REG 0x31 +#define VSCALELOW_REG 0x32 +#define VSCALEHIGH_REG 0x33 + +#define AC97LSB_REG 0x40 +#define AC97MSB_REG 0x41 +#define AC97ADDR_REG 0x42 +#define AC97BUSY_REG 0x43 + +/* em202 registers */ +#define MASTER_AC97 0x02 +#define VIDEO_AC97 0x14 + +/* register settings */ +#define EM2820_AUDIO_SRC_TUNER 0xc0 +#define EM2820_AUDIO_SRC_LINE 0x80 + +/* printk macros */ + +#define em2820_err(fmt, arg...) do {\ + printk(KERN_ERR fmt , ##arg); } while (0) + +#define em2820_errdev(fmt, arg...) do {\ + printk(KERN_ERR "%s: "fmt,\ + dev->name , ##arg); } while (0) + +#define em2820_info(fmt, arg...) do {\ + printk(KERN_INFO "%s: "fmt,\ + dev->name , ##arg); } while (0) +#define em2820_warn(fmt, arg...) do {\ + printk(KERN_WARNING "%s: "fmt,\ + dev->name , ##arg); } while (0) + +inline static int em2820_audio_source(struct em2820 *dev, int input) +{ + return em2820_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0); +} + +inline static int em2820_audio_usb_mute(struct em2820 *dev, int mute) +{ + return em2820_write_reg_bits(dev, XCLK_REG, mute ? 0x00 : 0x80, 0x80); +} + +inline static int em2820_audio_analog_setup(struct em2820 *dev) +{ + /* unmute video mixer with default volume level */ + return em2820_write_ac97(dev, VIDEO_AC97, "\x08\x08"); +} + +inline static int em2820_compression_disable(struct em2820 *dev) +{ + /* side effect of disabling scaler and mixer */ + return em2820_write_regs(dev, COMPR_REG, "\x00", 1); +} + +inline static int em2820_contrast_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, YGAIN_REG) & 0x1f; +} + +inline static int em2820_brightness_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, YOFFSET_REG); +} + +inline static int em2820_saturation_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, UVGAIN_REG) & 0x1f; +} + +inline static int em2820_u_balance_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, UOFFSET_REG); +} + +inline static int em2820_v_balance_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, VOFFSET_REG); +} + +inline static int em2820_gamma_get(struct em2820 *dev) +{ + return em2820_read_reg(dev, GAMMA_REG) & 0x3f; +} + +inline static int em2820_contrast_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, YGAIN_REG, &tmp, 1); +} + +inline static int em2820_brightness_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, YOFFSET_REG, &tmp, 1); +} + +inline static int em2820_saturation_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, UVGAIN_REG, &tmp, 1); +} + +inline static int em2820_u_balance_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, UOFFSET_REG, &tmp, 1); +} + +inline static int em2820_v_balance_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, VOFFSET_REG, &tmp, 1); +} + +inline static int em2820_gamma_set(struct em2820 *dev, s32 val) +{ + u8 tmp = (u8) val; + return em2820_write_regs(dev, GAMMA_REG, &tmp, 1); +} + +/*FIXME: maxw should be dependent of alt mode */ +#define norm_maxw(dev) 720 +inline static unsigned int norm_maxh(struct em2820 *dev) +{ + return (dev->tvnorm->id & V4L2_STD_625_50) ? 576 : 480; +} + +#endif |
