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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * Driver for the Auvitek AU0828 USB bridge4 *5 * Copyright (c) 2008 Steven Toth <stoth@linuxtv.org>6 */7 8#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt9 10#include <linux/bitops.h>11#include <linux/usb.h>12#include <linux/i2c.h>13#include <linux/i2c-algo-bit.h>14#include <media/tveeprom.h>15 16/* Analog */17#include <linux/videodev2.h>18#include <media/videobuf2-v4l2.h>19#include <media/videobuf2-vmalloc.h>20#include <media/v4l2-device.h>21#include <media/v4l2-ctrls.h>22#include <media/v4l2-fh.h>23#include <media/media-device.h>24#include <media/media-dev-allocator.h>25 26/* DVB */27#include <media/demux.h>28#include <media/dmxdev.h>29#include <media/dvb_demux.h>30#include <media/dvb_frontend.h>31#include <media/dvb_net.h>32#include <media/dvbdev.h>33 34#include "au0828-reg.h"35#include "au0828-cards.h"36 37#define URB_COUNT 1638#define URB_BUFSIZE (0xe522)39 40/* Analog constants */41#define NTSC_STD_W 72042#define NTSC_STD_H 48043 44#define AU0828_INTERLACED_DEFAULT 145 46/* Definition for AU0828 USB transfer */47#define AU0828_MAX_ISO_BUFS 12 /* maybe resize this value in the future */48#define AU0828_ISO_PACKETS_PER_URB 12849 50#define AU0828_MIN_BUF 451#define AU0828_DEF_BUF 852 53#define AU0828_MAX_INPUT 454 55/* au0828 resource types (used for res_get/res_lock etc */56#define AU0828_RESOURCE_VIDEO 0x0157#define AU0828_RESOURCE_VBI 0x0258 59enum au0828_itype {60 AU0828_VMUX_UNDEFINED = 0,61 AU0828_VMUX_COMPOSITE,62 AU0828_VMUX_SVIDEO,63 AU0828_VMUX_CABLE,64 AU0828_VMUX_TELEVISION,65 AU0828_VMUX_DVB,66};67 68struct au0828_input {69 enum au0828_itype type;70 unsigned int vmux;71 unsigned int amux;72 void (*audio_setup) (void *priv, int enable);73};74 75struct au0828_board {76 char *name;77 unsigned int tuner_type;78 unsigned char tuner_addr;79 unsigned char i2c_clk_divider;80 unsigned char has_ir_i2c:1;81 unsigned char has_analog:1;82 struct au0828_input input[AU0828_MAX_INPUT];83};84 85struct au0828_dvb {86 struct mutex lock;87 struct dvb_adapter adapter;88 struct dvb_frontend *frontend;89 struct dvb_demux demux;90 struct dmxdev dmxdev;91 struct dmx_frontend fe_hw;92 struct dmx_frontend fe_mem;93 struct dvb_net net;94 int feeding;95 int start_count;96 int stop_count;97 98 int (*set_frontend)(struct dvb_frontend *fe);99};100 101enum au0828_stream_state {102 STREAM_OFF,103 STREAM_INTERRUPT,104 STREAM_ON105};106 107#define AUVI_INPUT(nr) (dev->board.input[nr])108 109/* device state */110enum au0828_dev_state {111 DEV_INITIALIZED = 0,112 DEV_DISCONNECTED = 1,113 DEV_MISCONFIGURED = 2114};115 116struct au0828_dev;117 118struct au0828_usb_isoc_ctl {119 /* max packet size of isoc transaction */120 int max_pkt_size;121 122 /* number of allocated urbs */123 int num_bufs;124 125 /* urb for isoc transfers */126 struct urb **urb;127 128 /* transfer buffers for isoc transfer */129 char **transfer_buffer;130 131 /* Last buffer command and region */132 u8 cmd;133 int pos, size, pktsize;134 135 /* Last field: ODD or EVEN? */136 int field;137 138 /* Stores incomplete commands */139 u32 tmp_buf;140 int tmp_buf_len;141 142 /* Stores already requested buffers */143 struct au0828_buffer *buf;144 struct au0828_buffer *vbi_buf;145 146 /* Stores the number of received fields */147 int nfields;148 149 /* isoc urb callback */150 int (*isoc_copy) (struct au0828_dev *dev, struct urb *urb);151 152};153 154/* buffer for one video frame */155struct au0828_buffer {156 /* common v4l buffer stuff -- must be first */157 struct vb2_v4l2_buffer vb;158 struct list_head list;159 160 void *mem;161 unsigned long length;162 int top_field;163 /* pointer to vmalloc memory address in vb */164 char *vb_buf;165};166 167struct au0828_dmaqueue {168 struct list_head active;169 /* Counters to control buffer fill */170 int pos;171};172 173struct au0828_dev {174 struct mutex mutex;175 struct usb_device *usbdev;176 int boardnr;177 struct au0828_board board;178 u8 ctrlmsg[64];179 180 /* I2C */181 struct i2c_adapter i2c_adap;182 struct i2c_algorithm i2c_algo;183 struct i2c_client i2c_client;184 u32 i2c_rc;185 186 /* Digital */187 struct au0828_dvb dvb;188 struct work_struct restart_streaming;189 struct timer_list bulk_timeout;190 int bulk_timeout_running;191 192#ifdef CONFIG_VIDEO_AU0828_V4L2193 /* Analog */194 struct v4l2_device v4l2_dev;195 struct v4l2_ctrl_handler v4l2_ctrl_hdl;196#endif197#ifdef CONFIG_VIDEO_AU0828_RC198 struct au0828_rc *ir;199#endif200 201 struct video_device vdev;202 struct video_device vbi_dev;203 204 /* Videobuf2 */205 struct vb2_queue vb_vidq;206 struct vb2_queue vb_vbiq;207 struct mutex vb_queue_lock;208 struct mutex vb_vbi_queue_lock;209 210 unsigned int frame_count;211 unsigned int vbi_frame_count;212 213 struct timer_list vid_timeout;214 int vid_timeout_running;215 struct timer_list vbi_timeout;216 int vbi_timeout_running;217 218 int users;219 int streaming_users;220 221 int width;222 int height;223 int vbi_width;224 int vbi_height;225 u32 vbi_read;226 v4l2_std_id std;227 u32 field_size;228 u32 frame_size;229 u32 bytesperline;230 int type;231 u8 ctrl_ainput;232 __u8 isoc_in_endpointaddr;233 u8 isoc_init_ok;234 int greenscreen_detected;235 int ctrl_freq;236 int input_type;237 int std_set_in_tuner_core;238 unsigned int ctrl_input;239 long unsigned int dev_state; /* defined at enum au0828_dev_state */;240 enum au0828_stream_state stream_state;241 wait_queue_head_t open;242 243 struct mutex lock;244 245 /* Isoc control struct */246 struct au0828_dmaqueue vidq;247 struct au0828_dmaqueue vbiq;248 struct au0828_usb_isoc_ctl isoc_ctl;249 spinlock_t slock;250 251 /* usb transfer */252 int alt; /* alternate */253 int max_pkt_size; /* max packet size of isoc transaction */254 int num_alt; /* Number of alternative settings */255 unsigned int *alt_max_pkt_size; /* array of wMaxPacketSize */256 struct urb *urb[AU0828_MAX_ISO_BUFS]; /* urb for isoc transfers */257 char *transfer_buffer[AU0828_MAX_ISO_BUFS];/* transfer buffers for isoc258 transfer */259 260 /* DVB USB / URB Related */261 bool urb_streaming, need_urb_start;262 struct urb *urbs[URB_COUNT];263 264 /* Preallocated transfer digital transfer buffers */265 266 char *dig_transfer_buffer[URB_COUNT];267 268#ifdef CONFIG_MEDIA_CONTROLLER269 struct media_device *media_dev;270 struct media_pad video_pad, vbi_pad;271 struct media_entity *decoder;272 struct media_entity input_ent[AU0828_MAX_INPUT];273 struct media_pad input_pad[AU0828_MAX_INPUT];274 struct media_entity_notify entity_notify;275 struct media_entity *tuner;276 struct media_link *active_link;277 struct media_entity *active_source;278 struct media_entity *active_sink;279 struct media_entity *active_link_owner;280 struct media_entity *active_link_user;281 struct media_pipeline *active_link_user_pipe;282 bool active_link_shared;283#endif284};285 286 287/* ----------------------------------------------------------- */288#define au0828_read(dev, reg) au0828_readreg(dev, reg)289#define au0828_write(dev, reg, value) au0828_writereg(dev, reg, value)290#define au0828_andor(dev, reg, mask, value) \291 au0828_writereg(dev, reg, \292 (au0828_readreg(dev, reg) & ~(mask)) | ((value) & (mask)))293 294#define au0828_set(dev, reg, bit) au0828_andor(dev, (reg), (bit), (bit))295#define au0828_clear(dev, reg, bit) au0828_andor(dev, (reg), (bit), 0)296 297/* ----------------------------------------------------------- */298/* au0828-core.c */299extern u32 au0828_read(struct au0828_dev *dev, u16 reg);300extern u32 au0828_write(struct au0828_dev *dev, u16 reg, u32 val);301extern void au0828_usb_release(struct au0828_dev *dev);302extern int au0828_debug;303 304/* ----------------------------------------------------------- */305/* au0828-cards.c */306extern struct au0828_board au0828_boards[];307extern struct usb_device_id au0828_usb_id_table[];308extern void au0828_gpio_setup(struct au0828_dev *dev);309extern int au0828_tuner_callback(void *priv, int component,310 int command, int arg);311extern void au0828_card_setup(struct au0828_dev *dev);312 313/* ----------------------------------------------------------- */314/* au0828-i2c.c */315extern int au0828_i2c_register(struct au0828_dev *dev);316extern int au0828_i2c_unregister(struct au0828_dev *dev);317 318/* ----------------------------------------------------------- */319/* au0828-video.c */320extern int au0828_start_analog_streaming(struct vb2_queue *vq,321 unsigned int count);322extern void au0828_stop_vbi_streaming(struct vb2_queue *vq);323#ifdef CONFIG_VIDEO_AU0828_V4L2324extern int au0828_v4l2_device_register(struct usb_interface *interface,325 struct au0828_dev *dev);326 327extern int au0828_analog_register(struct au0828_dev *dev,328 struct usb_interface *interface);329extern int au0828_analog_unregister(struct au0828_dev *dev);330extern void au0828_usb_v4l2_media_release(struct au0828_dev *dev);331extern void au0828_v4l2_suspend(struct au0828_dev *dev);332extern void au0828_v4l2_resume(struct au0828_dev *dev);333#else334static inline int au0828_v4l2_device_register(struct usb_interface *interface,335 struct au0828_dev *dev)336{ return 0; };337static inline int au0828_analog_register(struct au0828_dev *dev,338 struct usb_interface *interface)339{ return 0; };340static inline int au0828_analog_unregister(struct au0828_dev *dev)341{ return 0; };342static inline void au0828_usb_v4l2_media_release(struct au0828_dev *dev) { };343static inline void au0828_v4l2_suspend(struct au0828_dev *dev) { };344static inline void au0828_v4l2_resume(struct au0828_dev *dev) { };345#endif346 347/* ----------------------------------------------------------- */348/* au0828-dvb.c */349extern int au0828_dvb_register(struct au0828_dev *dev);350extern void au0828_dvb_unregister(struct au0828_dev *dev);351void au0828_dvb_suspend(struct au0828_dev *dev);352void au0828_dvb_resume(struct au0828_dev *dev);353 354/* au0828-vbi.c */355extern const struct vb2_ops au0828_vbi_qops;356 357#define dprintk(level, fmt, arg...)\358 do { if (au0828_debug & level)\359 printk(KERN_DEBUG pr_fmt(fmt), ## arg);\360 } while (0)361 362/* au0828-input.c */363#ifdef CONFIG_VIDEO_AU0828_RC364extern int au0828_rc_register(struct au0828_dev *dev);365extern void au0828_rc_unregister(struct au0828_dev *dev);366extern int au0828_rc_suspend(struct au0828_dev *dev);367extern int au0828_rc_resume(struct au0828_dev *dev);368#else369static inline int au0828_rc_register(struct au0828_dev *dev) { return 0; }370static inline void au0828_rc_unregister(struct au0828_dev *dev) { }371static inline int au0828_rc_suspend(struct au0828_dev *dev) { return 0; }372static inline int au0828_rc_resume(struct au0828_dev *dev) { return 0; }373#endif374