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linux_dsm_epyc7002/drivers/media/video/em28xx/em28xx.h
Devin Heitmueller 5c2231c843 V4L/DVB (9648): em28xx: get audio config from em28xx register 
Make use of the em28xx chip configuration register to determine whether
we have AC97 audio, I2S audio, or no audio support at all.

Thanks for Ray Lu from Empia for providing the em2860/em2880 datasheet.

Signed-off-by: Devin Heitmueller <devin.heitmueller@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2008-12-29 17:53:35 -02:00

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/*
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 EM2883_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
#define EM2880_BOARD_AMD_ATI_TV_WONDER_HD_600 20
#define EM2800_BOARD_GRABBEEX_USB2800 21
#define EM2750_BOARD_UNKNOWN 22
#define EM2750_BOARD_DLCW_130 23
#define EM2820_BOARD_DLINK_USB_TV 24
#define EM2820_BOARD_GADMEI_UTV310 25
#define EM2820_BOARD_HERCULES_SMART_TV_USB2 26
#define EM2820_BOARD_PINNACLE_USB_2_FM1216ME 27
#define EM2820_BOARD_LEADTEK_WINFAST_USBII_DELUXE 28
#define EM2820_BOARD_PINNACLE_DVC_100 29
#define EM2820_BOARD_VIDEOLOGY_20K14XUSB 30
#define EM2821_BOARD_USBGEAR_VD204 31
#define EM2821_BOARD_SUPERCOMP_USB_2 32
#define EM2821_BOARD_PROLINK_PLAYTV_USB2 33
#define EM2860_BOARD_TERRATEC_HYBRID_XS 34
#define EM2860_BOARD_TYPHOON_DVD_MAKER 35
#define EM2860_BOARD_NETGMBH_CAM 36
#define EM2860_BOARD_GADMEI_UTV330 37
#define EM2861_BOARD_YAKUMO_MOVIE_MIXER 38
#define EM2861_BOARD_KWORLD_PVRTV_300U 39
#define EM2861_BOARD_PLEXTOR_PX_TV100U 40
#define EM2870_BOARD_KWORLD_350U 41
#define EM2870_BOARD_KWORLD_355U 42
#define EM2870_BOARD_TERRATEC_XS 43
#define EM2870_BOARD_TERRATEC_XS_MT2060 44
#define EM2870_BOARD_PINNACLE_PCTV_DVB 45
#define EM2870_BOARD_COMPRO_VIDEOMATE 46
#define EM2880_BOARD_KWORLD_DVB_305U 47
#define EM2880_BOARD_KWORLD_DVB_310U 48
#define EM2880_BOARD_MSI_DIGIVOX_AD 49
#define EM2880_BOARD_MSI_DIGIVOX_AD_II 50
#define EM2880_BOARD_TERRATEC_HYBRID_XS_FR 51
#define EM2881_BOARD_DNT_DA2_HYBRID 52
#define EM2881_BOARD_PINNACLE_HYBRID_PRO 53
#define EM2882_BOARD_KWORLD_VS_DVBT 54
#define EM2882_BOARD_TERRATEC_HYBRID_XS 55
#define EM2882_BOARD_PINNACLE_HYBRID_PRO 56
#define EM2883_BOARD_KWORLD_HYBRID_A316 57
#define EM2820_BOARD_COMPRO_VIDEOMATE_FORYOU 58
#define EM2874_BOARD_PINNACLE_PCTV_80E 59
/* Limits minimum and default number of buffers */
#define EM28XX_MIN_BUF 4
#define EM28XX_DEF_BUF 8
/*Limits the max URB message size */
#define URB_MAX_CTRL_SIZE 80
/* Params for validated field */
#define EM28XX_BOARD_NOT_VALIDATED 1
#define EM28XX_BOARD_VALIDATED 0
/* 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_audio_mode {
EM28XX_NO_AUDIO,
EM28XX_I2S_3_SAMPLE_RATES,
EM28XX_I2S_5_SAMPLE_RATES,
EM28XX_AC97,
};
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_NODECODER,
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;
int tuner_addr;
/* 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;
unsigned int valid:1;
enum em28xx_decoder decoder;
struct em28xx_input input[MAX_EM28XX_INPUT];
struct em28xx_input radio;
IR_KEYTAB_TYPE *ir_codes;
};
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 */
enum em28xx_chip_id chip_id;
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_alsa_audio: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;
unsigned int valid:1; /* report for validated boards */
struct em28xx_IR *ir;
/* 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;
enum em28xx_audio_mode audio_mode;
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;/* selected audio input */
int mute;
int volume;
/* frame properties */
int width; /* current frame width */
int height; /* current frame height */
unsigned hscale; /* horizontal scale factor (see datasheet) */
unsigned 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;
struct mutex ctrl_urb_lock; /* protects urb_buf */
/* 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 */
char urb_buf[URB_MAX_CTRL_SIZE]; /* urb control msg buffer */
/* 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;
/* register numbers for GPO/GPIO registers */
u16 reg_gpo_num, reg_gpio_num;
/* Caches GPO and GPIO registers */
unsigned char reg_gpo, reg_gpio;
/* Infrared remote control support */
IR_KEYTAB_TYPE *ir_codes;
/* 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 component, int command, int arg);
/* Provided by em28xx-input.c */
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);
int em28xx_ir_init(struct em28xx *dev);
int em28xx_ir_fini(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
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