| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Steven Toth | 1951 | 89.54% | 29 | 67.44% |
| Hans Verkuil | 179 | 8.21% | 7 | 16.28% |
| Mauro Carvalho Chehab | 37 | 1.70% | 2 | 4.65% |
| Tony Jago | 4 | 0.18% | 1 | 2.33% |
| Brendan McGrath | 3 | 0.14% | 1 | 2.33% |
| Thomas Gleixner | 2 | 0.09% | 1 | 2.33% |
| Ingo Molnar | 2 | 0.09% | 1 | 2.33% |
| Dan Carpenter | 1 | 0.05% | 1 | 2.33% |
| Total | 2179 | 43 |
/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver for the NXP SAA7164 PCIe bridge * * Copyright (c) 2010-2015 Steven Toth <stoth@kernellabs.com> */ /* Driver architecture ******************* saa7164_core.c/buffer.c/cards.c/i2c.c/dvb.c | : Standard Linux driver framework for creating | : exposing and managing interfaces to the rest | : of the kernel or userland. Also uses _fw.c to load | : firmware direct into the PCIe bus, bypassing layers. V saa7164_api..() : Translate kernel specific functions/features | : into command buffers. V saa7164_cmd..() : Manages the flow of command packets on/off, | : the bus. Deal with bus errors, timeouts etc. V saa7164_bus..() : Manage a read/write memory ring buffer in the | : PCIe Address space. | | saa7164_fw...() : Load any frimware | | : direct into the device V V <- ----------------- PCIe address space -------------------- -> */ #include <linux/pci.h> #include <linux/i2c.h> #include <linux/kdev_t.h> #include <linux/mutex.h> #include <linux/crc32.h> #include <linux/kthread.h> #include <linux/freezer.h> #include <media/tuner.h> #include <media/tveeprom.h> #include <media/dvb_demux.h> #include <media/dvb_frontend.h> #include <media/dvb_net.h> #include <media/dvbdev.h> #include <media/dmxdev.h> #include <media/v4l2-common.h> #include <media/v4l2-ioctl.h> #include <media/v4l2-device.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-event.h> #include "saa7164-reg.h" #include "saa7164-types.h" #define SAA7164_MAXBOARDS 8 #define UNSET (-1U) #define SAA7164_BOARD_NOAUTO UNSET #define SAA7164_BOARD_UNKNOWN 0 #define SAA7164_BOARD_UNKNOWN_REV2 1 #define SAA7164_BOARD_UNKNOWN_REV3 2 #define SAA7164_BOARD_HAUPPAUGE_HVR2250 3 #define SAA7164_BOARD_HAUPPAUGE_HVR2200 4 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_2 5 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_3 6 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_2 7 #define SAA7164_BOARD_HAUPPAUGE_HVR2250_3 8 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_4 9 #define SAA7164_BOARD_HAUPPAUGE_HVR2200_5 10 #define SAA7164_BOARD_HAUPPAUGE_HVR2255proto 11 #define SAA7164_BOARD_HAUPPAUGE_HVR2255 12 #define SAA7164_BOARD_HAUPPAUGE_HVR2205 13 #define SAA7164_MAX_UNITS 8 #define SAA7164_TS_NUMBER_OF_LINES 312 #define SAA7164_PS_NUMBER_OF_LINES 256 #define SAA7164_PT_ENTRIES 16 /* (312 * 188) / 4096 */ #define SAA7164_MAX_ENCODER_BUFFERS 64 /* max 5secs of latency at 6Mbps */ #define SAA7164_MAX_VBI_BUFFERS 64 /* Port related defines */ #define SAA7164_PORT_TS1 (0) #define SAA7164_PORT_TS2 (SAA7164_PORT_TS1 + 1) #define SAA7164_PORT_ENC1 (SAA7164_PORT_TS2 + 1) #define SAA7164_PORT_ENC2 (SAA7164_PORT_ENC1 + 1) #define SAA7164_PORT_VBI1 (SAA7164_PORT_ENC2 + 1) #define SAA7164_PORT_VBI2 (SAA7164_PORT_VBI1 + 1) #define SAA7164_MAX_PORTS (SAA7164_PORT_VBI2 + 1) #define DBGLVL_FW 4 #define DBGLVL_DVB 8 #define DBGLVL_I2C 16 #define DBGLVL_API 32 #define DBGLVL_CMD 64 #define DBGLVL_BUS 128 #define DBGLVL_IRQ 256 #define DBGLVL_BUF 512 #define DBGLVL_ENC 1024 #define DBGLVL_VBI 2048 #define DBGLVL_THR 4096 #define DBGLVL_CPU 8192 #define SAA7164_NORMS \ (V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP) /* TV frequency range copied from tuner-core.c */ #define SAA7164_TV_MIN_FREQ (44U * 16U) #define SAA7164_TV_MAX_FREQ (958U * 16U) enum port_t { SAA7164_MPEG_UNDEFINED = 0, SAA7164_MPEG_DVB, SAA7164_MPEG_ENCODER, SAA7164_MPEG_VBI, }; enum saa7164_i2c_bus_nr { SAA7164_I2C_BUS_0 = 0, SAA7164_I2C_BUS_1, SAA7164_I2C_BUS_2, }; enum saa7164_buffer_flags { SAA7164_BUFFER_UNDEFINED = 0, SAA7164_BUFFER_FREE, SAA7164_BUFFER_BUSY, SAA7164_BUFFER_FULL }; enum saa7164_unit_type { SAA7164_UNIT_UNDEFINED = 0, SAA7164_UNIT_DIGITAL_DEMODULATOR, SAA7164_UNIT_ANALOG_DEMODULATOR, SAA7164_UNIT_TUNER, SAA7164_UNIT_EEPROM, SAA7164_UNIT_ZILOG_IRBLASTER, SAA7164_UNIT_ENCODER, }; /* The PCIe bridge doesn't grant direct access to i2c. * Instead, you address i2c devices using a uniqely * allocated 'unitid' value via a messaging API. This * is a problem. The kernel and existing demod/tuner * drivers expect to talk 'i2c', so we have to maintain * a translation layer, and a series of functions to * convert i2c bus + device address into a unit id. */ struct saa7164_unit { enum saa7164_unit_type type; u8 id; char *name; enum saa7164_i2c_bus_nr i2c_bus_nr; u8 i2c_bus_addr; u8 i2c_reg_len; }; struct saa7164_board { char *name; enum port_t porta, portb, portc, portd, porte, portf; enum { SAA7164_CHIP_UNDEFINED = 0, SAA7164_CHIP_REV2, SAA7164_CHIP_REV3, } chiprev; struct saa7164_unit unit[SAA7164_MAX_UNITS]; }; struct saa7164_subid { u16 subvendor; u16 subdevice; u32 card; }; struct saa7164_encoder_fh { struct v4l2_fh fh; struct saa7164_port *port; atomic_t v4l_reading; }; struct saa7164_vbi_fh { struct v4l2_fh fh; struct saa7164_port *port; atomic_t v4l_reading; }; struct saa7164_histogram_bucket { u32 val; u32 count; u64 update_time; }; struct saa7164_histogram { char name[32]; struct saa7164_histogram_bucket counter1[64]; }; struct saa7164_user_buffer { struct list_head list; /* Attributes */ u8 *data; u32 pos; u32 actual_size; u32 crc; }; struct saa7164_fw_status { /* RISC Core details */ u32 status; u32 mode; u32 spec; u32 inst; u32 cpuload; u32 remainheap; /* Firmware version */ u32 version; u32 major; u32 sub; u32 rel; u32 buildnr; }; struct saa7164_dvb { struct mutex lock; struct dvb_adapter adapter; struct dvb_frontend *frontend; struct dvb_demux demux; struct dmxdev dmxdev; struct dmx_frontend fe_hw; struct dmx_frontend fe_mem; struct dvb_net net; int feeding; }; struct saa7164_i2c { struct saa7164_dev *dev; enum saa7164_i2c_bus_nr nr; /* I2C I/O */ struct i2c_adapter i2c_adap; struct i2c_client i2c_client; u32 i2c_rc; }; struct saa7164_tvnorm { char *name; v4l2_std_id id; }; struct saa7164_encoder_params { struct saa7164_tvnorm encodernorm; u32 height; u32 width; u32 is_50hz; u32 bitrate; /* bps */ u32 bitrate_peak; /* bps */ u32 bitrate_mode; u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */ u32 audio_sampling_freq; u32 ctl_mute; u32 ctl_aspect; u32 refdist; u32 gop_size; }; struct saa7164_vbi_params { struct saa7164_tvnorm encodernorm; u32 height; u32 width; u32 is_50hz; u32 bitrate; /* bps */ u32 bitrate_peak; /* bps */ u32 bitrate_mode; u32 stream_type; /* V4L2_MPEG_STREAM_TYPE_MPEG2_TS */ u32 audio_sampling_freq; u32 ctl_mute; u32 ctl_aspect; u32 refdist; u32 gop_size; }; struct saa7164_port; struct saa7164_buffer { struct list_head list; /* Note of which h/w buffer list index position we occupy */ int idx; struct saa7164_port *port; /* Hardware Specific */ /* PCI Memory allocations */ enum saa7164_buffer_flags flags; /* Free, Busy, Full */ /* A block of page align PCI memory */ u32 pci_size; /* PCI allocation size in bytes */ u64 *cpu; /* Virtual address */ dma_addr_t dma; /* Physical address */ u32 crc; /* Checksum for the entire buffer data */ /* A page table that splits the block into a number of entries */ u32 pt_size; /* PCI allocation size in bytes */ u64 *pt_cpu; /* Virtual address */ dma_addr_t pt_dma; /* Physical address */ /* Encoder fops */ u32 pos; u32 actual_size; }; struct saa7164_port { struct saa7164_dev *dev; enum port_t type; int nr; /* --- Generic port attributes --- */ /* HW stream parameters */ struct tmHWStreamParameters hw_streamingparams; /* DMA configuration values, is seeded during initialization */ struct tmComResDMATermDescrHeader hwcfg; /* hardware specific registers */ u32 bufcounter; u32 pitch; u32 bufsize; u32 bufoffset; u32 bufptr32l; u32 bufptr32h; u64 bufptr64; u32 numpte; /* Number of entries in array, only valid in head */ struct mutex dmaqueue_lock; struct saa7164_buffer dmaqueue; u64 last_irq_msecs, last_svc_msecs; u64 last_irq_msecs_diff, last_svc_msecs_diff; u32 last_svc_wp; u32 last_svc_rp; u64 last_irq_svc_msecs_diff; u64 last_read_msecs, last_read_msecs_diff; u64 last_poll_msecs, last_poll_msecs_diff; struct saa7164_histogram irq_interval; struct saa7164_histogram svc_interval; struct saa7164_histogram irq_svc_interval; struct saa7164_histogram read_interval; struct saa7164_histogram poll_interval; /* --- DVB Transport Specific --- */ struct saa7164_dvb dvb; struct i2c_client *i2c_client_demod; struct i2c_client *i2c_client_tuner; /* --- Encoder/V4L related attributes --- */ /* Encoder */ /* Defaults established in saa7164-encoder.c */ struct saa7164_tvnorm encodernorm; struct v4l2_ctrl_handler ctrl_handler; v4l2_std_id std; u32 height; u32 width; u32 freq; u8 mux_input; u8 encoder_profile; u8 video_format; u8 audio_format; u8 video_resolution; u16 ctl_brightness; u16 ctl_contrast; u16 ctl_hue; u16 ctl_saturation; u16 ctl_sharpness; s8 ctl_volume; struct tmComResAFeatureDescrHeader audfeat; struct tmComResEncoderDescrHeader encunit; struct tmComResProcDescrHeader vidproc; struct tmComResExtDevDescrHeader ifunit; struct tmComResTunerDescrHeader tunerunit; struct work_struct workenc; /* V4L Encoder Video */ struct saa7164_encoder_params encoder_params; struct video_device *v4l_device; atomic_t v4l_reader_count; struct saa7164_buffer list_buf_used; struct saa7164_buffer list_buf_free; wait_queue_head_t wait_read; /* V4L VBI */ struct tmComResVBIFormatDescrHeader vbi_fmt_ntsc; struct saa7164_vbi_params vbi_params; struct saa7164_port *enc_port; /* Debug */ u32 sync_errors; u32 v_cc_errors; u32 a_cc_errors; u8 last_v_cc; u8 last_a_cc; u32 done_first_interrupt; }; struct saa7164_dev { struct list_head devlist; atomic_t refcount; struct v4l2_device v4l2_dev; /* pci stuff */ struct pci_dev *pci; unsigned char pci_rev, pci_lat; int pci_bus, pci_slot; u32 __iomem *lmmio; u8 __iomem *bmmio; u32 __iomem *lmmio2; u8 __iomem *bmmio2; int pci_irqmask; /* board details */ int nr; int hwrevision; u32 board; char name[16]; /* firmware status */ struct saa7164_fw_status fw_status; u32 firmwareloaded; struct tmComResHWDescr hwdesc; struct tmComResInterfaceDescr intfdesc; struct tmComResBusDescr busdesc; struct tmComResBusInfo bus; /* Interrupt status and ack registers */ u32 int_status; u32 int_ack; bool msi; struct cmd cmds[SAA_CMD_MAX_MSG_UNITS]; struct mutex lock; /* I2c related */ struct saa7164_i2c i2c_bus[3]; /* Transport related */ struct saa7164_port ports[SAA7164_MAX_PORTS]; /* Deferred command/api interrupts handling */ struct work_struct workcmd; /* A kernel thread to monitor the firmware log, used * only in debug mode. */ struct task_struct *kthread; }; extern struct list_head saa7164_devlist; extern unsigned int waitsecs; extern unsigned int encoder_buffers; extern unsigned int vbi_buffers; /* ----------------------------------------------------------- */ /* saa7164-core.c */ void saa7164_dumpregs(struct saa7164_dev *dev, u32 addr); void saa7164_getfirmwarestatus(struct saa7164_dev *dev); u32 saa7164_getcurrentfirmwareversion(struct saa7164_dev *dev); void saa7164_histogram_update(struct saa7164_histogram *hg, u32 val); /* ----------------------------------------------------------- */ /* saa7164-fw.c */ int saa7164_downloadfirmware(struct saa7164_dev *dev); /* ----------------------------------------------------------- */ /* saa7164-i2c.c */ extern int saa7164_i2c_register(struct saa7164_i2c *bus); extern int saa7164_i2c_unregister(struct saa7164_i2c *bus); extern void saa7164_call_i2c_clients(struct saa7164_i2c *bus, unsigned int cmd, void *arg); /* ----------------------------------------------------------- */ /* saa7164-bus.c */ int saa7164_bus_setup(struct saa7164_dev *dev); void saa7164_bus_dump(struct saa7164_dev *dev); int saa7164_bus_set(struct saa7164_dev *dev, struct tmComResInfo* msg, void *buf); int saa7164_bus_get(struct saa7164_dev *dev, struct tmComResInfo* msg, void *buf, int peekonly); /* ----------------------------------------------------------- */ /* saa7164-cmd.c */ int saa7164_cmd_send(struct saa7164_dev *dev, u8 id, enum tmComResCmd command, u16 controlselector, u16 size, void *buf); void saa7164_cmd_signal(struct saa7164_dev *dev, u8 seqno); int saa7164_irq_dequeue(struct saa7164_dev *dev); /* ----------------------------------------------------------- */ /* saa7164-api.c */ int saa7164_api_get_fw_version(struct saa7164_dev *dev, u32 *version); int saa7164_api_enum_subdevs(struct saa7164_dev *dev); int saa7164_api_i2c_read(struct saa7164_i2c *bus, u8 addr, u32 reglen, u8 *reg, u32 datalen, u8 *data); int saa7164_api_i2c_write(struct saa7164_i2c *bus, u8 addr, u32 datalen, u8 *data); int saa7164_api_dif_write(struct saa7164_i2c *bus, u8 addr, u32 datalen, u8 *data); int saa7164_api_read_eeprom(struct saa7164_dev *dev, u8 *buf, int buflen); int saa7164_api_set_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin); int saa7164_api_clear_gpiobit(struct saa7164_dev *dev, u8 unitid, u8 pin); int saa7164_api_transition_port(struct saa7164_port *port, u8 mode); int saa7164_api_initialize_dif(struct saa7164_port *port); int saa7164_api_configure_dif(struct saa7164_port *port, u32 std); int saa7164_api_set_encoder(struct saa7164_port *port); int saa7164_api_get_encoder(struct saa7164_port *port); int saa7164_api_set_aspect_ratio(struct saa7164_port *port); int saa7164_api_set_usercontrol(struct saa7164_port *port, u8 ctl); int saa7164_api_get_usercontrol(struct saa7164_port *port, u8 ctl); int saa7164_api_set_videomux(struct saa7164_port *port); int saa7164_api_audio_mute(struct saa7164_port *port, int mute); int saa7164_api_set_audio_volume(struct saa7164_port *port, s8 level); int saa7164_api_set_audio_std(struct saa7164_port *port); int saa7164_api_set_audio_detection(struct saa7164_port *port, int autodetect); int saa7164_api_get_videomux(struct saa7164_port *port); int saa7164_api_set_vbi_format(struct saa7164_port *port); int saa7164_api_set_debug(struct saa7164_dev *dev, u8 level); int saa7164_api_collect_debug(struct saa7164_dev *dev); int saa7164_api_get_load_info(struct saa7164_dev *dev, struct tmFwInfoStruct *i); /* ----------------------------------------------------------- */ /* saa7164-cards.c */ extern struct saa7164_board saa7164_boards[]; extern const unsigned int saa7164_bcount; extern struct saa7164_subid saa7164_subids[]; extern const unsigned int saa7164_idcount; extern void saa7164_card_list(struct saa7164_dev *dev); extern void saa7164_gpio_setup(struct saa7164_dev *dev); extern void saa7164_card_setup(struct saa7164_dev *dev); extern int saa7164_i2caddr_to_reglen(struct saa7164_i2c *bus, int addr); extern int saa7164_i2caddr_to_unitid(struct saa7164_i2c *bus, int addr); extern char *saa7164_unitid_name(struct saa7164_dev *dev, u8 unitid); /* ----------------------------------------------------------- */ /* saa7164-dvb.c */ extern int saa7164_dvb_register(struct saa7164_port *port); extern int saa7164_dvb_unregister(struct saa7164_port *port); /* ----------------------------------------------------------- */ /* saa7164-buffer.c */ extern struct saa7164_buffer *saa7164_buffer_alloc( struct saa7164_port *port, u32 len); extern int saa7164_buffer_dealloc(struct saa7164_buffer *buf); extern void saa7164_buffer_display(struct saa7164_buffer *buf); extern int saa7164_buffer_activate(struct saa7164_buffer *buf, int i); extern int saa7164_buffer_cfg_port(struct saa7164_port *port); extern struct saa7164_user_buffer *saa7164_buffer_alloc_user( struct saa7164_dev *dev, u32 len); extern void saa7164_buffer_dealloc_user(struct saa7164_user_buffer *buf); extern int saa7164_buffer_zero_offsets(struct saa7164_port *port, int i); /* ----------------------------------------------------------- */ /* saa7164-encoder.c */ int saa7164_s_std(struct saa7164_port *port, v4l2_std_id id); int saa7164_g_std(struct saa7164_port *port, v4l2_std_id *id); int saa7164_enum_input(struct file *file, void *priv, struct v4l2_input *i); int saa7164_g_input(struct saa7164_port *port, unsigned int *i); int saa7164_s_input(struct saa7164_port *port, unsigned int i); int saa7164_g_tuner(struct file *file, void *priv, struct v4l2_tuner *t); int saa7164_s_tuner(struct file *file, void *priv, const struct v4l2_tuner *t); int saa7164_g_frequency(struct saa7164_port *port, struct v4l2_frequency *f); int saa7164_s_frequency(struct saa7164_port *port, const struct v4l2_frequency *f); int saa7164_encoder_register(struct saa7164_port *port); void saa7164_encoder_unregister(struct saa7164_port *port); /* ----------------------------------------------------------- */ /* saa7164-vbi.c */ int saa7164_vbi_register(struct saa7164_port *port); void saa7164_vbi_unregister(struct saa7164_port *port); /* ----------------------------------------------------------- */ extern unsigned int crc_checking; extern unsigned int saa_debug; #define dprintk(level, fmt, arg...)\ do { if (saa_debug & level)\ printk(KERN_DEBUG "%s: " fmt, dev->name, ## arg);\ } while (0) #define log_warn(fmt, arg...)\ do { \ printk(KERN_WARNING "%s: " fmt, dev->name, ## arg);\ } while (0) #define saa7164_readl(reg) readl(dev->lmmio + ((reg) >> 2)) #define saa7164_writel(reg, value) writel((value), dev->lmmio + ((reg) >> 2)) #define saa7164_readb(reg) readl(dev->bmmio + (reg)) #define saa7164_writeb(reg, value) writel((value), dev->bmmio + (reg))
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