--- /dev/null
+/*
+ * Driver for the Conexant CX25821 PCIe bridge
+ *
+ * Copyright (C) 2009 Conexant Systems Inc.
+ * Authors <shu.lin@conexant.com>, <hiep.huynh@conexant.com>
+ * Based on Steven Toth <stoth@linuxtv.org> cx23885 driver
+ *
+ * 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 CX25821_H_
+#define CX25821_H_
+
+#include <linux/pci.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/kdev_t.h>
+
+#include <media/v4l2-common.h>
+#include <media/v4l2-device.h>
+#include <media/v4l2-ctrls.h>
+#include <media/videobuf2-dma-sg.h>
+
+#include "cx25821-reg.h"
+#include "cx25821-medusa-reg.h"
+#include "cx25821-sram.h"
+#include "cx25821-audio.h"
+
+#include <linux/version.h>
+#include <linux/mutex.h>
+
+#define CX25821_VERSION_CODE KERNEL_VERSION(0, 0, 106)
+
+#define UNSET (-1U)
+#define NO_SYNC_LINE (-1U)
+
+#define CX25821_MAXBOARDS 2
+
+#define LINE_SIZE_D1 1440
+
+/* Number of decoders and encoders */
+#define MAX_DECODERS 8
+#define MAX_ENCODERS 2
+#define QUAD_DECODERS 4
+#define MAX_CAMERAS 16
+
+/* Max number of inputs by card */
+#define MAX_CX25821_INPUT 8
+#define RESOURCE_VIDEO0 1
+#define RESOURCE_VIDEO1 2
+#define RESOURCE_VIDEO2 4
+#define RESOURCE_VIDEO3 8
+#define RESOURCE_VIDEO4 16
+#define RESOURCE_VIDEO5 32
+#define RESOURCE_VIDEO6 64
+#define RESOURCE_VIDEO7 128
+#define RESOURCE_VIDEO8 256
+#define RESOURCE_VIDEO9 512
+#define RESOURCE_VIDEO10 1024
+#define RESOURCE_VIDEO11 2048
+
+#define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
+
+#define UNKNOWN_BOARD 0
+#define CX25821_BOARD 1
+
+/* Currently supported by the driver */
+#define CX25821_NORMS (\
+ V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_M_KR | \
+ V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
+ V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_H | \
+ V4L2_STD_PAL_Nc)
+
+#define CX25821_BOARD_CONEXANT_ATHENA10 1
+#define MAX_VID_CHANNEL_NUM 12
+
+/*
+ * Maximum capture-only channels. This can go away once video/audio output
+ * is fully supported in this driver.
+ */
+#define MAX_VID_CAP_CHANNEL_NUM 10
+
+#define VID_CHANNEL_NUM 8
+
+struct cx25821_fmt {
+ char *name;
+ u32 fourcc; /* v4l2 format id */
+ int depth;
+ int flags;
+ u32 cxformat;
+};
+
+struct cx25821_tvnorm {
+ char *name;
+ v4l2_std_id id;
+ u32 cxiformat;
+ u32 cxoformat;
+};
+
+enum cx25821_src_sel_type {
+ CX25821_SRC_SEL_EXT_656_VIDEO = 0,
+ CX25821_SRC_SEL_PARALLEL_MPEG_VIDEO
+};
+
+struct cx25821_riscmem {
+ unsigned int size;
+ __le32 *cpu;
+ __le32 *jmp;
+ dma_addr_t dma;
+};
+
+/* buffer for one video frame */
+struct cx25821_buffer {
+ /* common v4l buffer stuff -- must be first */
+ struct vb2_buffer vb;
+ struct list_head queue;
+
+ /* cx25821 specific */
+ unsigned int bpl;
+ struct cx25821_riscmem risc;
+ const struct cx25821_fmt *fmt;
+};
+
+enum port {
+ CX25821_UNDEFINED = 0,
+ CX25821_RAW,
+ CX25821_264
+};
+
+struct cx25821_board {
+ const char *name;
+ enum port porta;
+ enum port portb;
+ enum port portc;
+
+ u32 clk_freq;
+};
+
+struct cx25821_i2c {
+ struct cx25821_dev *dev;
+
+ int nr;
+
+ /* i2c i/o */
+ struct i2c_adapter i2c_adap;
+ struct i2c_client i2c_client;
+ u32 i2c_rc;
+
+ /* cx25821 registers used for raw addess */
+ u32 i2c_period;
+ u32 reg_ctrl;
+ u32 reg_stat;
+ u32 reg_addr;
+ u32 reg_rdata;
+ u32 reg_wdata;
+};
+
+struct cx25821_dmaqueue {
+ struct list_head active;
+ u32 count;
+};
+
+struct cx25821_dev;
+
+struct cx25821_channel;
+
+struct cx25821_video_out_data {
+ struct cx25821_channel *chan;
+ int _line_size;
+ int _prog_cnt;
+ int _pixel_format;
+ int _is_first_frame;
+ int _is_running;
+ int _file_status;
+ int _lines_count;
+ int _frame_count;
+ unsigned int _risc_size;
+
+ __le32 *_dma_virt_start_addr;
+ __le32 *_dma_virt_addr;
+ dma_addr_t _dma_phys_addr;
+ dma_addr_t _dma_phys_start_addr;
+
+ unsigned int _data_buf_size;
+ __le32 *_data_buf_virt_addr;
+ dma_addr_t _data_buf_phys_addr;
+
+ u32 upstream_riscbuf_size;
+ u32 upstream_databuf_size;
+ int is_60hz;
+ int _frame_index;
+ int cur_frame_index;
+ int curpos;
+ wait_queue_head_t waitq;
+};
+
+struct cx25821_channel {
+ unsigned id;
+ struct cx25821_dev *dev;
+
+ struct v4l2_ctrl_handler hdl;
+
+ struct video_device vdev;
+ struct cx25821_dmaqueue dma_vidq;
+ struct vb2_queue vidq;
+
+ const struct sram_channel *sram_channels;
+
+ const struct cx25821_fmt *fmt;
+ unsigned field;
+ unsigned int width, height;
+ int pixel_formats;
+ int use_cif_resolution;
+ int cif_width;
+
+ /* video output data for the video output channel */
+ struct cx25821_video_out_data *out;
+};
+
+struct snd_card;
+
+struct cx25821_dev {
+ struct v4l2_device v4l2_dev;
+
+ /* pci stuff */
+ struct pci_dev *pci;
+ unsigned char pci_rev, pci_lat;
+ int pci_bus, pci_slot;
+ u32 base_io_addr;
+ u32 __iomem *lmmio;
+ u8 __iomem *bmmio;
+ int pci_irqmask;
+ int hwrevision;
+ /* used by cx25821-alsa */
+ struct snd_card *card;
+ void *alloc_ctx;
+
+ u32 clk_freq;
+
+ /* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
+ struct cx25821_i2c i2c_bus[3];
+
+ int nr;
+ struct mutex lock;
+
+ struct cx25821_channel channels[MAX_VID_CHANNEL_NUM];
+
+ /* board details */
+ unsigned int board;
+ char name[32];
+
+ /* Analog video */
+ unsigned int input;
+ v4l2_std_id tvnorm;
+ unsigned short _max_num_decoders;
+
+ /* Analog Audio Upstream */
+ int _audio_is_running;
+ int _audiopixel_format;
+ int _is_first_audio_frame;
+ int _audiofile_status;
+ int _audio_lines_count;
+ int _audioframe_count;
+ int _audio_upstream_channel;
+ int _last_index_irq; /* The last interrupt index processed. */
+
+ __le32 *_risc_audio_jmp_addr;
+ __le32 *_risc_virt_start_addr;
+ __le32 *_risc_virt_addr;
+ dma_addr_t _risc_phys_addr;
+ dma_addr_t _risc_phys_start_addr;
+
+ unsigned int _audiorisc_size;
+ unsigned int _audiodata_buf_size;
+ __le32 *_audiodata_buf_virt_addr;
+ dma_addr_t _audiodata_buf_phys_addr;
+ char *_audiofilename;
+ u32 audio_upstream_riscbuf_size;
+ u32 audio_upstream_databuf_size;
+ int _audioframe_index;
+ struct workqueue_struct *_irq_audio_queues;
+ struct work_struct _audio_work_entry;
+ char *input_audiofilename;
+
+ /* V4l */
+ spinlock_t slock;
+
+ /* Video Upstream */
+ struct cx25821_video_out_data vid_out_data[2];
+};
+
+static inline struct cx25821_dev *get_cx25821(struct v4l2_device *v4l2_dev)
+{
+ return container_of(v4l2_dev, struct cx25821_dev, v4l2_dev);
+}
+
+extern struct cx25821_board cx25821_boards[];
+
+#define SRAM_CH00 0 /* Video A */
+#define SRAM_CH01 1 /* Video B */
+#define SRAM_CH02 2 /* Video C */
+#define SRAM_CH03 3 /* Video D */
+#define SRAM_CH04 4 /* Video E */
+#define SRAM_CH05 5 /* Video F */
+#define SRAM_CH06 6 /* Video G */
+#define SRAM_CH07 7 /* Video H */
+
+#define SRAM_CH08 8 /* Audio A */
+#define SRAM_CH09 9 /* Video Upstream I */
+#define SRAM_CH10 10 /* Video Upstream J */
+#define SRAM_CH11 11 /* Audio Upstream AUD_CHANNEL_B */
+
+#define VID_UPSTREAM_SRAM_CHANNEL_I SRAM_CH09
+#define VID_UPSTREAM_SRAM_CHANNEL_J SRAM_CH10
+#define AUDIO_UPSTREAM_SRAM_CHANNEL_B SRAM_CH11
+
+struct sram_channel {
+ char *name;
+ u32 i;
+ u32 cmds_start;
+ u32 ctrl_start;
+ u32 cdt;
+ u32 fifo_start;
+ u32 fifo_size;
+ u32 ptr1_reg;
+ u32 ptr2_reg;
+ u32 cnt1_reg;
+ u32 cnt2_reg;
+ u32 int_msk;
+ u32 int_stat;
+ u32 int_mstat;
+ u32 dma_ctl;
+ u32 gpcnt_ctl;
+ u32 gpcnt;
+ u32 aud_length;
+ u32 aud_cfg;
+ u32 fld_aud_fifo_en;
+ u32 fld_aud_risc_en;
+
+ /* For Upstream Video */
+ u32 vid_fmt_ctl;
+ u32 vid_active_ctl1;
+ u32 vid_active_ctl2;
+ u32 vid_cdt_size;
+
+ u32 vip_ctl;
+ u32 pix_frmt;
+ u32 jumponly;
+ u32 irq_bit;
+};
+
+extern const struct sram_channel cx25821_sram_channels[];
+
+#define cx_read(reg) readl(dev->lmmio + ((reg)>>2))
+#define cx_write(reg, value) writel((value), dev->lmmio + ((reg)>>2))
+
+#define cx_andor(reg, mask, value) \
+ writel((readl(dev->lmmio+((reg)>>2)) & ~(mask)) |\
+ ((value) & (mask)), dev->lmmio+((reg)>>2))
+
+#define cx_set(reg, bit) cx_andor((reg), (bit), (bit))
+#define cx_clear(reg, bit) cx_andor((reg), (bit), 0)
+
+#define Set_GPIO_Bit(Bit) (1 << Bit)
+#define Clear_GPIO_Bit(Bit) (~(1 << Bit))
+
+#define CX25821_ERR(fmt, args...) \
+ pr_err("(%d): " fmt, dev->board, ##args)
+#define CX25821_WARN(fmt, args...) \
+ pr_warn("(%d): " fmt, dev->board, ##args)
+#define CX25821_INFO(fmt, args...) \
+ pr_info("(%d): " fmt, dev->board, ##args)
+
+extern int cx25821_i2c_register(struct cx25821_i2c *bus);
+extern int cx25821_i2c_read(struct cx25821_i2c *bus, u16 reg_addr, int *value);
+extern int cx25821_i2c_write(struct cx25821_i2c *bus, u16 reg_addr, int value);
+extern int cx25821_i2c_unregister(struct cx25821_i2c *bus);
+extern void cx25821_gpio_init(struct cx25821_dev *dev);
+extern void cx25821_set_gpiopin_direction(struct cx25821_dev *dev,
+ int pin_number, int pin_logic_value);
+
+extern int medusa_video_init(struct cx25821_dev *dev);
+extern int medusa_set_videostandard(struct cx25821_dev *dev);
+extern void medusa_set_resolution(struct cx25821_dev *dev, int width,
+ int decoder_select);
+extern int medusa_set_brightness(struct cx25821_dev *dev, int brightness,
+ int decoder);
+extern int medusa_set_contrast(struct cx25821_dev *dev, int contrast,
+ int decoder);
+extern int medusa_set_hue(struct cx25821_dev *dev, int hue, int decoder);
+extern int medusa_set_saturation(struct cx25821_dev *dev, int saturation,
+ int decoder);
+
+extern int cx25821_sram_channel_setup(struct cx25821_dev *dev,
+ const struct sram_channel *ch, unsigned int bpl,
+ u32 risc);
+
+extern int cx25821_riscmem_alloc(struct pci_dev *pci,
+ struct cx25821_riscmem *risc,
+ unsigned int size);
+extern int cx25821_risc_buffer(struct pci_dev *pci, struct cx25821_riscmem *risc,
+ struct scatterlist *sglist,
+ unsigned int top_offset,
+ unsigned int bottom_offset,
+ unsigned int bpl,
+ unsigned int padding, unsigned int lines);
+extern int cx25821_risc_databuffer_audio(struct pci_dev *pci,
+ struct cx25821_riscmem *risc,
+ struct scatterlist *sglist,
+ unsigned int bpl,
+ unsigned int lines, unsigned int lpi);
+extern void cx25821_free_buffer(struct cx25821_dev *dev,
+ struct cx25821_buffer *buf);
+extern void cx25821_sram_channel_dump(struct cx25821_dev *dev,
+ const struct sram_channel *ch);
+extern void cx25821_sram_channel_dump_audio(struct cx25821_dev *dev,
+ const struct sram_channel *ch);
+
+extern struct cx25821_dev *cx25821_dev_get(struct pci_dev *pci);
+extern void cx25821_print_irqbits(char *name, char *tag, char **strings,
+ int len, u32 bits, u32 mask);
+extern void cx25821_dev_unregister(struct cx25821_dev *dev);
+extern int cx25821_sram_channel_setup_audio(struct cx25821_dev *dev,
+ const struct sram_channel *ch,
+ unsigned int bpl, u32 risc);
+
+extern int cx25821_vidupstream_init(struct cx25821_channel *chan, int pixel_format);
+extern int cx25821_audio_upstream_init(struct cx25821_dev *dev,
+ int channel_select);
+extern int cx25821_write_frame(struct cx25821_channel *chan,
+ const char __user *data, size_t count);
+extern void cx25821_free_mem_upstream(struct cx25821_channel *chan);
+extern void cx25821_free_mem_upstream_audio(struct cx25821_dev *dev);
+extern void cx25821_stop_upstream_video(struct cx25821_channel *chan);
+extern void cx25821_stop_upstream_audio(struct cx25821_dev *dev);
+extern int cx25821_sram_channel_setup_upstream(struct cx25821_dev *dev,
+ const struct sram_channel *ch,
+ unsigned int bpl, u32 risc);
+extern void cx25821_set_pixel_format(struct cx25821_dev *dev, int channel,
+ u32 format);
+
+#endif
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