| /* |
| em28xx.h - 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@infradead.org> |
| |
| 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 <linux/mutex.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 EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900 10 |
| #define EM2880_BOARD_TERRATEC_HYBRID_XS 11 |
| #define EM2820_BOARD_KWORLD_PVRTV2800RF 12 |
| #define EM2880_BOARD_TERRATEC_PRODIGY_XS 13 |
| |
| #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 */ |
| int devno; /* marks the number of this device */ |
| 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; |
| |
| u32 i2s_speed; /* I2S speed for audio digital stream */ |
| |
| 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 mutex 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 */ |
| |
| 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_pre_card_setup(struct em28xx *dev); |
| 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 |