| /* |
| 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/videodev2.h> |
| #include <media/videobuf-vmalloc.h> |
| |
| #include <linux/i2c.h> |
| #include <linux/mutex.h> |
| #include <media/ir-kbd-i2c.h> |
| #if defined(CONFIG_VIDEO_EM28XX_DVB) || defined(CONFIG_VIDEO_EM28XX_DVB_MODULE) |
| #include <media/videobuf-dvb.h> |
| #endif |
| #include "tuner-xc2028.h" |
| #include "em28xx-reg.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 EM2820_BOARD_PROLINK_PLAYTV_USB2 14 |
| #define EM2800_BOARD_VGEAR_POCKETTV 15 |
| #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_950 16 |
| #define EM2880_BOARD_PINNACLE_PCTV_HD_PRO 17 |
| #define EM2880_BOARD_HAUPPAUGE_WINTV_HVR_900_R2 18 |
| #define EM2860_BOARD_POINTNIX_INTRAORAL_CAMERA 19 |
| |
| /* Limits minimum and default number of buffers */ |
| #define EM28XX_MIN_BUF 4 |
| #define EM28XX_DEF_BUF 8 |
| |
| /* 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_mode { |
| EM28XX_MODE_UNDEFINED, |
| EM28XX_ANALOG_MODE, |
| EM28XX_DIGITAL_MODE, |
| }; |
| |
| enum em28xx_stream_state { |
| STREAM_OFF, |
| STREAM_INTERRUPT, |
| STREAM_ON, |
| }; |
| |
| struct em28xx; |
| |
| 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; |
| |
| /* isoc urb callback */ |
| int (*isoc_copy) (struct em28xx *dev, struct urb *urb); |
| |
| }; |
| |
| 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 list_head frame; |
| int top_field; |
| int receiving; |
| }; |
| |
| struct em28xx_dmaqueue { |
| struct list_head active; |
| struct list_head queued; |
| |
| 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_reg_seq { |
| int reg; |
| unsigned char val, mask; |
| int sleep; |
| }; |
| |
| 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 has_dvb:1; |
| unsigned int has_snapshot_button:1; |
| |
| 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 |
| |
| /* em28xx extensions */ |
| #define EM28XX_AUDIO 0x10 |
| #define EM28XX_DVB 0x20 |
| |
| 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; |
| }; |
| |
| struct em28xx; |
| |
| struct em28xx_fh { |
| struct em28xx *dev; |
| unsigned int stream_on:1; /* Locks streams */ |
| int radio; |
| |
| struct videobuf_queue vb_vidq; |
| |
| enum v4l2_buf_type type; |
| }; |
| |
| /* 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_em2800:1; |
| 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; |
| unsigned int has_dvb:1; |
| unsigned int has_snapshot_button:1; |
| |
| /* Some older em28xx chips needs a waiting time after writing */ |
| unsigned int wait_after_write; |
| |
| /* GPIO sequences for analog and digital mode */ |
| struct em28xx_reg_seq *analog_gpio, *digital_gpio; |
| |
| /* GPIO sequences for tuner callbacks */ |
| struct em28xx_reg_seq *tun_analog_gpio, *tun_digital_gpio; |
| |
| 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 hscale; /* horizontal scale factor (see datasheet) */ |
| int vscale; /* vertical scale factor (see datasheet) */ |
| int interlaced; /* 1=interlace fileds, 0=just top fileds */ |
| 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); |
| |
| enum em28xx_mode mode; |
| |
| /* Caches GPO and GPIO registers */ |
| unsigned char reg_gpo, reg_gpio; |
| |
| /* Snapshot button */ |
| char snapshot_button_path[30]; /* path of the input dev */ |
| struct input_dev *sbutton_input_dev; |
| struct delayed_work sbutton_query_work; |
| |
| struct em28xx_dvb *dvb; |
| }; |
| |
| 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); |
| int em28xx_init_isoc(struct em28xx *dev, int max_packets, |
| int num_bufs, int max_pkt_size, |
| int (*isoc_copy) (struct em28xx *dev, struct urb *urb)); |
| void em28xx_uninit_isoc(struct em28xx *dev); |
| int em28xx_set_mode(struct em28xx *dev, enum em28xx_mode set_mode); |
| int em28xx_gpio_set(struct em28xx *dev, struct em28xx_reg_seq *gpio); |
| |
| /* 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); |
| int em28xx_tuner_callback(void *ptr, int command, int arg); |
| |
| /* 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); |
| void em28xx_register_snapshot_button(struct em28xx *dev); |
| void em28xx_deregister_snapshot_button(struct em28xx *dev); |
| |
| /* 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) |
| |
| static inline int em28xx_compression_disable(struct em28xx *dev) |
| { |
| /* side effect of disabling scaler and mixer */ |
| return em28xx_write_regs(dev, EM28XX_R26_COMPR, "\x00", 1); |
| } |
| |
| static inline int em28xx_contrast_get(struct em28xx *dev) |
| { |
| return em28xx_read_reg(dev, EM28XX_R20_YGAIN) & 0x1f; |
| } |
| |
| static inline int em28xx_brightness_get(struct em28xx *dev) |
| { |
| return em28xx_read_reg(dev, EM28XX_R21_YOFFSET); |
| } |
| |
| static inline int em28xx_saturation_get(struct em28xx *dev) |
| { |
| return em28xx_read_reg(dev, EM28XX_R22_UVGAIN) & 0x1f; |
| } |
| |
| static inline int em28xx_u_balance_get(struct em28xx *dev) |
| { |
| return em28xx_read_reg(dev, EM28XX_R23_UOFFSET); |
| } |
| |
| static inline int em28xx_v_balance_get(struct em28xx *dev) |
| { |
| return em28xx_read_reg(dev, EM28XX_R24_VOFFSET); |
| } |
| |
| static inline int em28xx_gamma_get(struct em28xx *dev) |
| { |
| return em28xx_read_reg(dev, EM28XX_R14_GAMMA) & 0x3f; |
| } |
| |
| static inline int em28xx_contrast_set(struct em28xx *dev, s32 val) |
| { |
| u8 tmp = (u8) val; |
| return em28xx_write_regs(dev, EM28XX_R20_YGAIN, &tmp, 1); |
| } |
| |
| static inline int em28xx_brightness_set(struct em28xx *dev, s32 val) |
| { |
| u8 tmp = (u8) val; |
| return em28xx_write_regs(dev, EM28XX_R21_YOFFSET, &tmp, 1); |
| } |
| |
| static inline int em28xx_saturation_set(struct em28xx *dev, s32 val) |
| { |
| u8 tmp = (u8) val; |
| return em28xx_write_regs(dev, EM28XX_R22_UVGAIN, &tmp, 1); |
| } |
| |
| static inline int em28xx_u_balance_set(struct em28xx *dev, s32 val) |
| { |
| u8 tmp = (u8) val; |
| return em28xx_write_regs(dev, EM28XX_R23_UOFFSET, &tmp, 1); |
| } |
| |
| static inline int em28xx_v_balance_set(struct em28xx *dev, s32 val) |
| { |
| u8 tmp = (u8) val; |
| return em28xx_write_regs(dev, EM28XX_R24_VOFFSET, &tmp, 1); |
| } |
| |
| static inline int em28xx_gamma_set(struct em28xx *dev, s32 val) |
| { |
| u8 tmp = (u8) val; |
| return em28xx_write_regs(dev, EM28XX_R14_GAMMA, &tmp, 1); |
| } |
| |
| /*FIXME: maxw should be dependent of alt mode */ |
| static inline unsigned int norm_maxw(struct em28xx *dev) |
| { |
| if (dev->max_range_640_480) |
| return 640; |
| else |
| return 720; |
| } |
| |
| static inline 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 |