/* SPDX-License-Identifier: GPL-2.0-or-later */ /* * Driver for the NXP SAA7164 PCIe bridge * * Copyright (c) 2010-2015 Steven Toth <[email protected]> */ /* 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 firmware | | : 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 … #define UNSET … #define SAA7164_BOARD_NOAUTO … #define SAA7164_BOARD_UNKNOWN … #define SAA7164_BOARD_UNKNOWN_REV2 … #define SAA7164_BOARD_UNKNOWN_REV3 … #define SAA7164_BOARD_HAUPPAUGE_HVR2250 … #define SAA7164_BOARD_HAUPPAUGE_HVR2200 … #define SAA7164_BOARD_HAUPPAUGE_HVR2200_2 … #define SAA7164_BOARD_HAUPPAUGE_HVR2200_3 … #define SAA7164_BOARD_HAUPPAUGE_HVR2250_2 … #define SAA7164_BOARD_HAUPPAUGE_HVR2250_3 … #define SAA7164_BOARD_HAUPPAUGE_HVR2200_4 … #define SAA7164_BOARD_HAUPPAUGE_HVR2200_5 … #define SAA7164_BOARD_HAUPPAUGE_HVR2255proto … #define SAA7164_BOARD_HAUPPAUGE_HVR2255 … #define SAA7164_BOARD_HAUPPAUGE_HVR2205 … #define SAA7164_MAX_UNITS … #define SAA7164_TS_NUMBER_OF_LINES … #define SAA7164_PS_NUMBER_OF_LINES … #define SAA7164_PT_ENTRIES … #define SAA7164_MAX_ENCODER_BUFFERS … #define SAA7164_MAX_VBI_BUFFERS … /* Port related defines */ #define SAA7164_PORT_TS1 … #define SAA7164_PORT_TS2 … #define SAA7164_PORT_ENC1 … #define SAA7164_PORT_ENC2 … #define SAA7164_PORT_VBI1 … #define SAA7164_PORT_VBI2 … #define SAA7164_MAX_PORTS … #define DBGLVL_FW … #define DBGLVL_DVB … #define DBGLVL_I2C … #define DBGLVL_API … #define DBGLVL_CMD … #define DBGLVL_BUS … #define DBGLVL_IRQ … #define DBGLVL_BUF … #define DBGLVL_ENC … #define DBGLVL_VBI … #define DBGLVL_THR … #define DBGLVL_CPU … #define SAA7164_NORMS … /* TV frequency range copied from tuner-core.c */ #define SAA7164_TV_MIN_FREQ … #define SAA7164_TV_MAX_FREQ … enum port_t { … }; enum saa7164_i2c_bus_nr { … }; enum saa7164_buffer_flags { … }; enum saa7164_unit_type { … }; /* 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 { … }; struct saa7164_board { … }; struct saa7164_subid { … }; struct saa7164_encoder_fh { … }; struct saa7164_vbi_fh { … }; struct saa7164_histogram_bucket { … }; struct saa7164_histogram { … }; struct saa7164_user_buffer { … }; struct saa7164_fw_status { … }; struct saa7164_dvb { … }; struct saa7164_i2c { … }; struct saa7164_tvnorm { … }; struct saa7164_encoder_params { … }; struct saa7164_vbi_params { … }; struct saa7164_port; struct saa7164_buffer { … }; struct saa7164_port { … }; struct saa7164_dev { … }; 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); /* ----------------------------------------------------------- */ /* 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...) … #define log_warn(fmt, arg...) … #define saa7164_readl(reg) … #define saa7164_writel(reg, value) … #define saa7164_readb(reg) … #define saa7164_writeb(reg, value) …
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