/* em28xx.h - driver for Empia EM2800/EM2820/2840 USB video capture devices Copyright (C) 2005 Markus Rechberger Ludovico Cavedon Mauro Carvalho Chehab Based on the em2800 driver from Sascha Sommer 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 #include #include #include #include /* maximum number of em28xx boards */ #define EM28XX_MAXBOARDS 4 /*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 enum em28xx_stream_state { STREAM_OFF, STREAM_INTERRUPT, STREAM_ON, }; struct em28xx_usb_isoc_ctl { /* max packet size of isoc transaction */ int max_pkt_size; /* number of allocated urbs */ int num_bufs; /* urb for isoc transfers */ struct urb **urb; /* transfer buffers for isoc transfer */ char **transfer_buffer; /* Last buffer command and region */ u8 cmd; int pos, size, pktsize; /* Last field: ODD or EVEN? */ int field; /* Stores incomplete commands */ u32 tmp_buf; int tmp_buf_len; /* Stores already requested buffers */ struct em28xx_buffer *buf; /* Stores the number of received fields */ int nfields; }; struct em28xx_fmt { char *name; u32 fourcc; /* v4l2 format id */ }; /* buffer for one video frame */ struct em28xx_buffer { /* common v4l buffer stuff -- must be first */ struct videobuf_buffer vb; struct em28xx_fmt *fmt; struct list_head frame; int top_field; int receiving; }; struct em28xx_dmaqueue { struct list_head active; struct list_head queued; struct timer_list timeout; wait_queue_head_t wq; /* Counters to control buffer fill */ int pos; }; /* 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, }; enum em28xx_amux { EM28XX_AMUX_VIDEO, EM28XX_AMUX_LINE_IN, EM28XX_AMUX_AC97_VIDEO, EM28XX_AMUX_AC97_LINE_IN, }; struct em28xx_input { enum enum28xx_itype type; unsigned int vmux; enum em28xx_amux 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 tuner_type; /* i2c flags */ unsigned int tda9887_conf; unsigned int is_em2800:1; unsigned int has_msp34xx:1; unsigned int mts_firmware:1; unsigned int has_12mhz_i2s:1; unsigned int max_range_640_480:1; unsigned int analog_gpio; enum em28xx_decoder decoder; struct em28xx_input input[MAX_EM28XX_INPUT]; struct em28xx_input radio; }; 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, }; #define EM28XX_AUDIO_BUFS 5 #define EM28XX_NUM_AUDIO_PACKETS 64 #define EM28XX_AUDIO_MAX_PACKET_SIZE 196 /* static value */ #define EM28XX_CAPTURE_STREAM_EN 1 #define EM28XX_AUDIO 0x10 struct em28xx_audio { char name[50]; char *transfer_buffer[EM28XX_AUDIO_BUFS]; struct urb *urb[EM28XX_AUDIO_BUFS]; struct usb_device *udev; unsigned int capture_transfer_done; struct snd_pcm_substream *capture_pcm_substream; unsigned int hwptr_done_capture; struct snd_card *sndcard; int users, shutdown; enum em28xx_stream_state capture_stream; spinlock_t slock; }; /* 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 analog_gpio; unsigned int is_em2800:1; unsigned int has_msp34xx:1; unsigned int has_tda9887:1; unsigned int stream_on:1; /* Locks streams */ unsigned int has_audio_class:1; unsigned int has_12mhz_i2s:1; unsigned int max_range_640_480:1; int video_inputs; /* number of video inputs */ struct list_head devlist; 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 */ v4l2_std_id norm; /* 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 */ 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; unsigned int video_bytesread; /* Number of bytes read */ unsigned long hash; /* eeprom hash - for boards with generic ID */ unsigned long i2c_hash; /* i2c devicelist hash - for boards with generic ID */ struct em28xx_audio *adev; /* states */ enum em28xx_dev_state state; enum em28xx_io_method io; struct work_struct request_module_wk; /* locks */ struct mutex lock; spinlock_t queue_lock; struct list_head inqueue, outqueue; wait_queue_head_t open, wait_frame, wait_stream; struct video_device *vbi_dev; struct video_device *radio_dev; unsigned char eedata[256]; /* Isoc control struct */ struct em28xx_dmaqueue vidq; struct em28xx_usb_isoc_ctl isoc_ctl; spinlock_t slock; /* 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); }; struct em28xx_fh { struct em28xx *dev; unsigned int stream_on:1; /* Locks streams */ int radio; unsigned int width, height; struct videobuf_queue vb_vidq; struct em28xx_fmt *fmt; enum v4l2_buf_type type; }; struct em28xx_ops { struct list_head next; char *name; int id; int (*init)(struct em28xx *); int (*fini)(struct em28xx *); }; /* Provided by em28xx-i2c.c */ void em28xx_i2c_call_clients(struct em28xx *dev, unsigned int cmd, void *arg); void em28xx_do_i2c_scan(struct em28xx *dev); int em28xx_i2c_register(struct em28xx *dev); int em28xx_i2c_unregister(struct em28xx *dev); /* 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_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_resolution_set(struct em28xx *dev); int em28xx_set_alternate(struct em28xx *dev); /* Provided by em28xx-video.c */ int em28xx_register_extension(struct em28xx_ops *dev); void em28xx_unregister_extension(struct em28xx_ops *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; void em28xx_set_ir(struct em28xx *dev, struct IR_i2c *ir); /* Provided by em28xx-input.c */ /* TODO: Check if the standard get_key handlers on ir-common can be used */ int em28xx_get_key_terratec(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); int em28xx_get_key_em_haup(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); int em28xx_get_key_pinnacle_usb_grey(struct IR_i2c *ir, u32 *ir_key, u32 *ir_raw); /* em2800 registers */ #define EM2800_AUDIOSRC_REG 0x08 /* em28xx registers */ #define I2C_CLK_REG 0x06 #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 LINE_IN_AC97 0x10 #define VIDEO_AC97 0x14 /* register settings */ #define EM2800_AUDIO_SRC_TUNER 0x0d #define EM2800_AUDIO_SRC_LINE 0x0c #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_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) { if (dev->max_range_640_480) return 640; else return 720; } inline static unsigned int norm_maxh(struct em28xx *dev) { if (dev->max_range_640_480) return 480; else return (dev->norm & V4L2_STD_625_50) ? 576 : 480; } #endif