diff options
Diffstat (limited to 'drivers/media/video/em28xx/em28xx.h')
| -rw-r--r-- | drivers/media/video/em28xx/em28xx.h | 513 |
1 files changed, 513 insertions, 0 deletions
diff --git a/drivers/media/video/em28xx/em28xx.h b/drivers/media/video/em28xx/em28xx.h new file mode 100644 index 000000000000..5c7a41ce69f3 --- /dev/null +++ b/drivers/media/video/em28xx/em28xx.h @@ -0,0 +1,513 @@ +/* + em28xx-cards.c - driver for Empia EM2800/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 _EM28XX_H +#define _EM28XX_H + +#include <linux/videodev.h> +#include <linux/i2c.h> +#include <media/ir-kbd-i2c.h> + +/* Boards supported by driver */ + +#define EM2800_BOARD_UNKNOWN 0 +#define EM2820_BOARD_UNKNOWN 1 +#define EM2820_BOARD_TERRATEC_CINERGY_250 2 +#define EM2820_BOARD_PINNACLE_USB_2 3 +#define EM2820_BOARD_HAUPPAUGE_WINTV_USB_2 4 +#define EM2820_BOARD_MSI_VOX_USB_2 5 +#define EM2800_BOARD_TERRATEC_CINERGY_200 6 +#define EM2800_BOARD_LEADTEK_WINFAST_USBII 7 +#define EM2800_BOARD_KWORLD_USB2800 8 +#define EM2820_BOARD_PINNACLE_DVC_90 9 + +#define UNSET -1 + +/* maximum number of em28xx boards */ +#define EM28XX_MAXBOARDS 1 /*FIXME: should be bigger */ + +/* maximum number of frames that can be queued */ +#define EM28XX_NUM_FRAMES 5 +/* number of frames that get used for v4l2_read() */ +#define EM28XX_NUM_READ_FRAMES 2 + +/* number of buffers for isoc transfers */ +#define EM28XX_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 EM28XX_NUM_PACKETS 40 + +/* default alternate; 0 means choose the best */ +#define EM28XX_PINOUT 0 + +#define EM28XX_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 EM28XX_URB_TIMEOUT msecs_to_jiffies(EM28XX_NUM_BUFS * EM28XX_NUM_PACKETS) + +/* time in msecs to wait for i2c writes to finish */ +#define EM2800_I2C_WRITE_TIMEOUT 20 + +/* the various frame states */ +enum em28xx_frame_state { + F_UNUSED = 0, + F_QUEUED, + F_GRABBING, + F_DONE, + F_ERROR, +}; + +/* stream states */ +enum em28xx_stream_state { + STREAM_OFF, + STREAM_INTERRUPT, + STREAM_ON, +}; + +/* frames */ +struct em28xx_frame_t { + void *bufmem; + struct v4l2_buffer buf; + enum em28xx_frame_state state; + struct list_head frame; + unsigned long vma_use_count; + int top_field; + int fieldbytesused; +}; + +/* io methods */ +enum em28xx_io_method { + IO_NONE, + IO_READ, + IO_MMAP, +}; + +/* inputs */ + +#define MAX_EM28XX_INPUT 4 +enum enum28xx_itype { + EM28XX_VMUX_COMPOSITE1 = 1, + EM28XX_VMUX_COMPOSITE2, + EM28XX_VMUX_COMPOSITE3, + EM28XX_VMUX_COMPOSITE4, + EM28XX_VMUX_SVIDEO, + EM28XX_VMUX_TELEVISION, + EM28XX_VMUX_CABLE, + EM28XX_VMUX_DVB, + EM28XX_VMUX_DEBUG, + EM28XX_RADIO, +}; + +struct em28xx_input { + enum enum28xx_itype type; + unsigned int vmux; + unsigned int amux; +}; + +#define INPUT(nr) (&em28xx_boards[dev->model].input[nr]) + +enum em28xx_decoder { + EM28XX_TVP5150, + EM28XX_SAA7113, + EM28XX_SAA7114 +}; + +struct em28xx_board { + char *name; + int vchannels; + int norm; + int tuner_type; + + /* i2c flags */ + unsigned int is_em2800; + unsigned int tda9887_conf; + + unsigned int has_tuner:1; + unsigned int has_msp34xx:1; + + enum em28xx_decoder decoder; + + struct em28xx_input input[MAX_EM28XX_INPUT]; +}; + +struct em28xx_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 em28xx_dev_state { + DEV_INITIALIZED = 0x01, + DEV_DISCONNECTED = 0x02, + DEV_MISCONFIGURED = 0x04, +}; + +/* tvnorms */ +struct em28xx_tvnorm { + char *name; + v4l2_std_id id; + /* mode for saa7113h */ + int mode; +}; + +/* main device struct */ +struct em28xx { + /* generic device properties */ + char name[30]; /* name (including minor) of the device */ + int model; /* index in the device_data struct */ + unsigned int is_em2800; + int video_inputs; /* number of video inputs */ + struct list_head devlist; + unsigned int has_tuner:1; + unsigned int has_msp34xx:1; + unsigned int has_tda9887:1; + + enum em28xx_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 em28xx_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 em28xx_frame_t frame[EM28XX_NUM_FRAMES]; /* list of frames */ + int num_frames; /* number of frames currently in use */ + unsigned int frame_count; /* total number of transfered frames */ + struct em28xx_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 em28xx_dev_state state; + enum em28xx_stream_state stream; + enum em28xx_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 */ + int num_alt; /* Number of alternative settings */ + unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */ + struct urb *urb[EM28XX_NUM_BUFS]; /* urb for isoc transfers */ + char *transfer_buffer[EM28XX_NUM_BUFS]; /* transfer buffers for isoc transfer */ + /* helper funcs that call usb_control_msg */ + int (*em28xx_write_regs) (struct em28xx * dev, u16 reg, char *buf, + int len); + int (*em28xx_read_reg) (struct em28xx * dev, u16 reg); + int (*em28xx_read_reg_req_len) (struct em28xx * dev, u8 req, u16 reg, + char *buf, int len); + int (*em28xx_write_regs_req) (struct em28xx * dev, u8 req, u16 reg, + char *buf, int len); + int (*em28xx_read_reg_req) (struct em28xx * dev, u8 req, u16 reg); +}; + +/* Provided by em28xx-i2c.c */ + +void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg); +int em28xx_i2c_register(struct em28xx *dev); +int em28xx_i2c_unregister(struct em28xx *dev); + +/* Provided by em28xx-input.c */ + +void em28xx_set_ir(struct em28xx * dev,struct IR_i2c *ir); + +/* Provided by em28xx-core.c */ + +void em28xx_print_ioctl(char *name, unsigned int cmd); + +u32 em28xx_request_buffers(struct em28xx *dev, u32 count); +void em28xx_queue_unusedframes(struct em28xx *dev); +void em28xx_release_buffers(struct em28xx *dev); + +int em28xx_read_reg_req_len(struct em28xx *dev, u8 req, u16 reg, + char *buf, int len); +int em28xx_read_reg_req(struct em28xx *dev, u8 req, u16 reg); +int em28xx_read_reg(struct em28xx *dev, u16 reg); +int em28xx_write_regs_req(struct em28xx *dev, u8 req, u16 reg, char *buf, + int len); +int em28xx_write_regs(struct em28xx *dev, u16 reg, char *buf, int len); +int em28xx_write_reg_bits(struct em28xx *dev, u16 reg, u8 val, + u8 bitmask); +int em28xx_write_ac97(struct em28xx *dev, u8 reg, u8 * val); +int em28xx_audio_analog_set(struct em28xx *dev); +int em28xx_colorlevels_set_default(struct em28xx *dev); +int em28xx_capture_start(struct em28xx *dev, int start); +int em28xx_outfmt_set_yuv422(struct em28xx *dev); +int em28xx_accumulator_set(struct em28xx *dev, u8 xmin, u8 xmax, u8 ymin, + u8 ymax); +int em28xx_capture_area_set(struct em28xx *dev, u8 hstart, u8 vstart, + u16 width, u16 height); +int em28xx_scaler_set(struct em28xx *dev, u16 h, u16 v); +int em28xx_resolution_set(struct em28xx *dev); +void em28xx_isocIrq(struct urb *urb, struct pt_regs *regs); +int em28xx_init_isoc(struct em28xx *dev); +void em28xx_uninit_isoc(struct em28xx *dev); +int em28xx_set_alternate(struct em28xx *dev); + +/* Provided by em28xx-cards.c */ +extern int em2800_variant_detect(struct usb_device* udev,int model); +extern void em28xx_card_setup(struct em28xx *dev); +extern struct em28xx_board em28xx_boards[]; +extern struct usb_device_id em28xx_id_table[]; +extern const unsigned int em28xx_bcount; + +/* em28xx registers */ +#define CHIPID_REG 0x0a +#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 EM28XX_AUDIO_SRC_TUNER 0xc0 +#define EM28XX_AUDIO_SRC_LINE 0x80 + +/* printk macros */ + +#define em28xx_err(fmt, arg...) do {\ + printk(KERN_ERR fmt , ##arg); } while (0) + +#define em28xx_errdev(fmt, arg...) do {\ + printk(KERN_ERR "%s: "fmt,\ + dev->name , ##arg); } while (0) + +#define em28xx_info(fmt, arg...) do {\ + printk(KERN_INFO "%s: "fmt,\ + dev->name , ##arg); } while (0) +#define em28xx_warn(fmt, arg...) do {\ + printk(KERN_WARNING "%s: "fmt,\ + dev->name , ##arg); } while (0) + +inline static int em28xx_audio_source(struct em28xx *dev, int input) +{ + return em28xx_write_reg_bits(dev, AUDIOSRC_REG, input, 0xc0); +} + +inline static int em28xx_audio_usb_mute(struct em28xx *dev, int mute) +{ + return em28xx_write_reg_bits(dev, XCLK_REG, mute ? 0x00 : 0x80, 0x80); +} + +inline static int em28xx_audio_analog_setup(struct em28xx *dev) +{ + /* unmute video mixer with default volume level */ + return em28xx_write_ac97(dev, VIDEO_AC97, "\x08\x08"); +} + +inline static int em28xx_compression_disable(struct em28xx *dev) +{ + /* side effect of disabling scaler and mixer */ + return em28xx_write_regs(dev, COMPR_REG, "\x00", 1); +} + +inline static int em28xx_contrast_get(struct em28xx *dev) +{ + return em28xx_read_reg(dev, YGAIN_REG) & 0x1f; +} + +inline static int em28xx_brightness_get(struct em28xx *dev) +{ + return em28xx_read_reg(dev, YOFFSET_REG); +} + +inline static int em28xx_saturation_get(struct em28xx *dev) +{ + return em28xx_read_reg(dev, UVGAIN_REG) & 0x1f; +} + +inline static int em28xx_u_balance_get(struct em28xx *dev) +{ + return em28xx_read_reg(dev, UOFFSET_REG); +} + +inline static int em28xx_v_balance_get(struct em28xx *dev) +{ + return em28xx_read_reg(dev, VOFFSET_REG); +} + +inline static int em28xx_gamma_get(struct em28xx *dev) +{ + return em28xx_read_reg(dev, GAMMA_REG) & 0x3f; +} + +inline static int em28xx_contrast_set(struct em28xx *dev, s32 val) +{ + u8 tmp = (u8) val; + return em28xx_write_regs(dev, YGAIN_REG, &tmp, 1); +} + +inline static int em28xx_brightness_set(struct em28xx *dev, s32 val) +{ + u8 tmp = (u8) val; + return em28xx_write_regs(dev, YOFFSET_REG, &tmp, 1); +} + +inline static int em28xx_saturation_set(struct em28xx *dev, s32 val) +{ + u8 tmp = (u8) val; + return em28xx_write_regs(dev, UVGAIN_REG, &tmp, 1); +} + +inline static int em28xx_u_balance_set(struct em28xx *dev, s32 val) +{ + u8 tmp = (u8) val; + return em28xx_write_regs(dev, UOFFSET_REG, &tmp, 1); +} + +inline static int em28xx_v_balance_set(struct em28xx *dev, s32 val) +{ + u8 tmp = (u8) val; + return em28xx_write_regs(dev, VOFFSET_REG, &tmp, 1); +} + +inline static int em28xx_gamma_set(struct em28xx *dev, s32 val) +{ + u8 tmp = (u8) val; + return em28xx_write_regs(dev, GAMMA_REG, &tmp, 1); +} + +/*FIXME: maxw should be dependent of alt mode */ +inline static unsigned int norm_maxw(struct em28xx *dev) +{ + switch(dev->model){ + case (EM2820_BOARD_MSI_VOX_USB_2): return(640); + default: return(720); + } +} + +inline static unsigned int norm_maxh(struct em28xx *dev) +{ + switch(dev->model){ + case (EM2820_BOARD_MSI_VOX_USB_2): return(480); + default: return (dev->tvnorm->id & V4L2_STD_625_50) ? 576 : 480; + } +} + +#endif |