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/*
* Driver for the Conexant CX23885 PCIe bridge
*
* Copyright (c) 2006 Steven Toth <stoth@hauppauge.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.
*/
#include <linux/pci.h>
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <linux/kdev_t.h>
#include <media/v4l2-common.h>
#include <media/tuner.h>
#include <media/tveeprom.h>
#include <media/videobuf-dma-sg.h>
#include <media/videobuf-dvb.h>
#include "btcx-risc.h"
#include "cx23885-reg.h"
#include <linux/version.h>
#include <linux/mutex.h>
#define CX23885_VERSION_CODE KERNEL_VERSION(0,0,1)
#define UNSET (-1U)
#define CX23885_MAXBOARDS 8
/* Max number of inputs by card */
#define MAX_CX23885_INPUT 8
#define BUFFER_TIMEOUT (HZ) /* 0.5 seconds */
#define CX23885_BOARD_NOAUTO UNSET
#define CX23885_BOARD_UNKNOWN 0
#define CX23885_BOARD_HAUPPAUGE_HVR1800lp 1
#define CX23885_BOARD_HAUPPAUGE_HVR1800 2
#define CX23885_BOARD_HAUPPAUGE_HVR1250 3
#define CX23885_BOARD_DVICO_FUSIONHDTV_5_EXP 4
#define CX23885_BOARD_HAUPPAUGE_HVR1500Q 5
#define CX23885_BOARD_HAUPPAUGE_HVR1500 6
enum cx23885_itype {
CX23885_VMUX_COMPOSITE1 = 1,
CX23885_VMUX_COMPOSITE2,
CX23885_VMUX_COMPOSITE3,
CX23885_VMUX_COMPOSITE4,
CX23885_VMUX_SVIDEO,
CX23885_VMUX_TELEVISION,
CX23885_VMUX_CABLE,
CX23885_VMUX_DVB,
CX23885_VMUX_DEBUG,
CX23885_RADIO,
};
enum cx23885_src_sel_type {
CX23885_SRC_SEL_EXT_656_VIDEO = 0,
CX23885_SRC_SEL_PARALLEL_MPEG_VIDEO
};
/* buffer for one video frame */
struct cx23885_buffer {
/* common v4l buffer stuff -- must be first */
struct videobuf_buffer vb;
/* cx23885 specific */
unsigned int bpl;
struct btcx_riscmem risc;
struct cx23885_fmt *fmt;
u32 count;
};
struct cx23885_input {
enum cx23885_itype type;
unsigned int vmux;
u32 gpio0, gpio1, gpio2, gpio3;
};
typedef enum {
CX23885_MPEG_UNDEFINED = 0,
CX23885_MPEG_DVB
} port_t;
struct cx23885_board {
char *name;
port_t portb, portc;
/* Vendors can and do run the PCIe bridge at different
* clock rates, driven physically by crystals on the PCBs.
* The core has to accomodate this. This allows the user
* to add new boards with new frequencys. The value is
* expressed in Hz.
*
* The core framework will default this value based on
* current designs, but it can vary.
*/
u32 clk_freq;
struct cx23885_input input[MAX_CX23885_INPUT];
};
struct cx23885_subid {
u16 subvendor;
u16 subdevice;
u32 card;
};
struct cx23885_i2c {
struct cx23885_dev *dev;
int nr;
/* i2c i/o */
struct i2c_adapter i2c_adap;
struct i2c_algo_bit_data i2c_algo;
struct i2c_client i2c_client;
u32 i2c_rc;
/* 885 registers used for raw addess */
u32 i2c_period;
u32 reg_ctrl;
u32 reg_stat;
u32 reg_addr;
u32 reg_rdata;
u32 reg_wdata;
};
struct cx23885_dmaqueue {
struct list_head active;
struct list_head queued;
struct timer_list timeout;
struct btcx_riscmem stopper;
u32 count;
};
struct cx23885_tsport {
struct cx23885_dev *dev;
int nr;
int sram_chno;
struct videobuf_dvb dvb;
/* dma queues */
struct cx23885_dmaqueue mpegq;
u32 ts_packet_size;
u32 ts_packet_count;
int width;
int height;
spinlock_t slock;
/* registers */
u32 reg_gpcnt;
u32 reg_gpcnt_ctl;
u32 reg_dma_ctl;
u32 reg_lngth;
u32 reg_hw_sop_ctrl;
u32 reg_gen_ctrl;
u32 reg_bd_pkt_status;
u32 reg_sop_status;
u32 reg_fifo_ovfl_stat;
u32 reg_vld_misc;
u32 reg_ts_clk_en;
u32 reg_ts_int_msk;
u32 reg_ts_int_stat;
u32 reg_src_sel;
/* Default register vals */
int pci_irqmask;
u32 dma_ctl_val;
u32 ts_int_msk_val;
u32 gen_ctrl_val;
u32 ts_clk_en_val;
u32 src_sel_val;
};
struct cx23885_dev {
struct list_head devlist;
atomic_t refcount;
/* pci stuff */
struct pci_dev *pci;
unsigned char pci_rev, pci_lat;
int pci_bus, pci_slot;
u32 __iomem *lmmio;
u8 __iomem *bmmio;
int pci_irqmask;
int hwrevision;
/* This valud is board specific and is used to configure the
* AV core so we see nice clean and stable video and audio. */
u32 clk_freq;
/* I2C adapters: Master 1 & 2 (External) & Master 3 (Internal only) */
struct cx23885_i2c i2c_bus[3];
int nr;
struct mutex lock;
/* board details */
unsigned int board;
char name[32];
struct cx23885_tsport ts1, ts2;
/* sram configuration */
struct sram_channel *sram_channels;
enum {
CX23885_BRIDGE_UNDEFINED = 0,
CX23885_BRIDGE_885 = 885,
CX23885_BRIDGE_887 = 887,
} bridge;
};
#define SRAM_CH01 0 /* Video A */
#define SRAM_CH02 1 /* VBI A */
#define SRAM_CH03 2 /* Video B */
#define SRAM_CH04 3 /* Transport via B */
#define SRAM_CH05 4 /* VBI B */
#define SRAM_CH06 5 /* Video C */
#define SRAM_CH07 6 /* Transport via C */
#define SRAM_CH08 7 /* Audio Internal A */
#define SRAM_CH09 8 /* Audio Internal B */
#define SRAM_CH10 9 /* Audio External */
#define SRAM_CH11 10 /* COMB_3D_N */
#define SRAM_CH12 11 /* Comb 3D N1 */
#define SRAM_CH13 12 /* Comb 3D N2 */
#define SRAM_CH14 13 /* MOE Vid */
#define SRAM_CH15 14 /* MOE RSLT */
struct sram_channel {
char *name;
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 jumponly;
};
/* ----------------------------------------------------------- */
#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)
/* ----------------------------------------------------------- */
/* cx23885-cards.c */
extern struct cx23885_board cx23885_boards[];
extern const unsigned int cx23885_bcount;
extern struct cx23885_subid cx23885_subids[];
extern const unsigned int cx23885_idcount;
extern void cx23885_card_list(struct cx23885_dev *dev);
extern int cx23885_ir_init(struct cx23885_dev *dev);
extern void cx23885_gpio_setup(struct cx23885_dev *dev);
extern void cx23885_card_setup(struct cx23885_dev *dev);
extern void cx23885_card_setup_pre_i2c(struct cx23885_dev *dev);
extern int cx23885_dvb_register(struct cx23885_tsport *port);
extern int cx23885_dvb_unregister(struct cx23885_tsport *port);
extern int cx23885_buf_prepare(struct videobuf_queue *q,
struct cx23885_tsport *port,
struct cx23885_buffer *buf,
enum v4l2_field field);
extern void cx23885_buf_queue(struct cx23885_tsport *port,
struct cx23885_buffer *buf);
extern void cx23885_free_buffer(struct videobuf_queue *q,
struct cx23885_buffer *buf);
/* ----------------------------------------------------------- */
/* cx23885-i2c.c */
extern int cx23885_i2c_register(struct cx23885_i2c *bus);
extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
extern void cx23885_call_i2c_clients(struct cx23885_i2c *bus, unsigned int cmd,
void *arg);
/*
* Local variables:
* c-basic-offset: 8
* End:
* kate: eol "unix"; indent-width 3; remove-trailing-space on; replace-trailing-space-save on; tab-width 8; replace-tabs off; space-indent off; mixed-indent off
*/
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