--- /dev/null
+/*
+ * Driver for the NXP SAA7164 PCIe bridge
+ *
+ * Copyright (c) 2010 Steven Toth <stoth@kernellabs.com>
+ *
+ * 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.
+ */
+
+/*
+ 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/videobuf-dma-sg.h>
+#include <media/videobuf-dvb.h>
+#include <dvb_demux.h>
+#include <dvb_frontend.h>
+#include <dvb_net.h>
+#include <dvbdev.h>
+#include <dmxdev.h>
+#include <media/v4l2-common.h>
+#include <media/v4l2-ioctl.h>
+#include <media/v4l2-device.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_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 | V4L2_STD_NTSC_443)
+
+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 saa7164_port *port;
+ atomic_t v4l_reading;
+};
+
+struct saa7164_vbi_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_ctrl {
+ struct v4l2_queryctrl v;
+};
+
+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;
+
+ /* --- Encoder/V4L related attributes --- */
+ /* Encoder */
+ /* Defaults established in saa7164-encoder.c */
+ struct saa7164_tvnorm encodernorm;
+ v4l2_std_id std;
+ u32 height;
+ u32 width;
+ u32 freq;
+ u32 ts_packet_size;
+ u32 ts_packet_count;
+ 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;
+
+ /* 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;
+
+ 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_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))
+
Code Review / kvmfornfv.git / blobdiff