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linux/drivers/media/video/cx23885/cx23885.h
Steven Toth 6f8bee9b10 V4L/DVB (11765): cx23885: Add generic functions for driving GPIO's 
The GPIO's on the product can be in one of three places. To date we've
mainly used the GPIO's on the bridge itself, and once on the encoder.
Rather than having the complexity of multiple GPIO writes/reads from
isolated placed in the driver we'll route them through this function,
so we can make intelligent decisions about 1) Where the GPIO lives
and 2) Whether it conflicts (based on board) with some other function
to avoid bugs.

Signed-off-by: Steven Toth <stoth@kernellabs.com>
Signed-off-by: Michael Krufky <mkrufky@kernellabs.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2009-06-16 18:21:02 -03:00

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/*
* Driver for the Conexant CX23885 PCIe bridge
*
* Copyright (c) 2006 Steven Toth <stoth@linuxtv.org>
*
* 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-device.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 "media/cx2341x.h"
#include <linux/version.h>
#include <linux/mutex.h>
#define CX23885_VERSION_CODE KERNEL_VERSION(0, 0, 2)
#define UNSET (-1U)
#define CX23885_MAXBOARDS 8
/* Max number of inputs by card */
#define MAX_CX23885_INPUT 8
#define INPUT(nr) (&cx23885_boards[dev->board].input[nr])
#define RESOURCE_OVERLAY 1
#define RESOURCE_VIDEO 2
#define RESOURCE_VBI 4
#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
#define CX23885_BOARD_HAUPPAUGE_HVR1200 7
#define CX23885_BOARD_HAUPPAUGE_HVR1700 8
#define CX23885_BOARD_HAUPPAUGE_HVR1400 9
#define CX23885_BOARD_DVICO_FUSIONHDTV_7_DUAL_EXP 10
#define CX23885_BOARD_DVICO_FUSIONHDTV_DVB_T_DUAL_EXP 11
#define CX23885_BOARD_LEADTEK_WINFAST_PXDVR3200_H 12
#define CX23885_BOARD_COMPRO_VIDEOMATE_E650F 13
#define CX23885_BOARD_TBS_6920 14
#define CX23885_BOARD_TEVII_S470 15
#define CX23885_BOARD_DVBWORLD_2005 16
#define CX23885_BOARD_NETUP_DUAL_DVBS2_CI 17
#define GPIO_0 0x00000001
#define GPIO_1 0x00000002
#define GPIO_2 0x00000004
#define GPIO_3 0x00000008
#define GPIO_4 0x00000010
#define GPIO_5 0x00000020
#define GPIO_6 0x00000040
#define GPIO_7 0x00000080
#define GPIO_8 0x00000100
#define GPIO_9 0x00000200
/* Currently unsupported by the driver: PAL/H, NTSC/Kr, SECAM B/G/H/LC */
#define CX23885_NORMS (\
V4L2_STD_NTSC_M | V4L2_STD_NTSC_M_JP | V4L2_STD_NTSC_443 | \
V4L2_STD_PAL_BG | V4L2_STD_PAL_DK | V4L2_STD_PAL_I | \
V4L2_STD_PAL_M | V4L2_STD_PAL_N | V4L2_STD_PAL_Nc | \
V4L2_STD_PAL_60 | V4L2_STD_SECAM_L | V4L2_STD_SECAM_DK)
struct cx23885_fmt {
char *name;
u32 fourcc; /* v4l2 format id */
int depth;
int flags;
u32 cxformat;
};
struct cx23885_ctrl {
struct v4l2_queryctrl v;
u32 off;
u32 reg;
u32 mask;
u32 shift;
};
struct cx23885_tvnorm {
char *name;
v4l2_std_id id;
u32 cxiformat;
u32 cxoformat;
};
struct cx23885_fh {
struct cx23885_dev *dev;
enum v4l2_buf_type type;
int radio;
u32 resources;
/* video overlay */
struct v4l2_window win;
struct v4l2_clip *clips;
unsigned int nclips;
/* video capture */
struct cx23885_fmt *fmt;
unsigned int width, height;
/* vbi capture */
struct videobuf_queue vidq;
struct videobuf_queue vbiq;
/* MPEG Encoder specifics ONLY */
struct videobuf_queue mpegq;
atomic_t v4l_reading;
};
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,
CX23885_ANALOG_VIDEO,
CX23885_MPEG_ENCODER,
} port_t;
struct cx23885_board {
char *name;
port_t porta, portb, portc;
unsigned int tuner_type;
unsigned int radio_type;
unsigned char tuner_addr;
unsigned char radio_addr;
/* 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];
int cimax; /* for NetUP */
};
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_frontends frontends;
/* 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;
u32 vld_misc_val;
u32 hw_sop_ctrl_val;
/* Allow a single tsport to have multiple frontends */
u32 num_frontends;
void *port_priv;
};
struct cx23885_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;
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;
/* Analog video */
u32 resources;
unsigned int input;
u32 tvaudio;
v4l2_std_id tvnorm;
unsigned int tuner_type;
unsigned char tuner_addr;
unsigned int radio_type;
unsigned char radio_addr;
unsigned int has_radio;
struct v4l2_subdev *sd_cx25840;
/* V4l */
u32 freq;
struct video_device *video_dev;
struct video_device *vbi_dev;
struct video_device *radio_dev;
struct cx23885_dmaqueue vidq;
struct cx23885_dmaqueue vbiq;
spinlock_t slock;
/* MPEG Encoder ONLY settings */
u32 cx23417_mailbox;
struct cx2341x_mpeg_params mpeg_params;
struct video_device *v4l_device;
atomic_t v4l_reader_count;
struct cx23885_tvnorm encodernorm;
};
static inline struct cx23885_dev *to_cx23885(struct v4l2_device *v4l2_dev)
{
return container_of(v4l2_dev, struct cx23885_dev, v4l2_dev);
}
#define call_all(dev, o, f, args...) \
v4l2_device_call_all(&dev->v4l2_dev, 0, o, f, ##args)
extern struct list_head cx23885_devlist;
#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-core.c */
extern int cx23885_sram_channel_setup(struct cx23885_dev *dev,
struct sram_channel *ch,
unsigned int bpl, u32 risc);
extern void cx23885_sram_channel_dump(struct cx23885_dev *dev,
struct sram_channel *ch);
extern int cx23885_risc_stopper(struct pci_dev *pci, struct btcx_riscmem *risc,
u32 reg, u32 mask, u32 value);
extern int cx23885_risc_buffer(struct pci_dev *pci, struct btcx_riscmem *risc,
struct scatterlist *sglist,
unsigned int top_offset, unsigned int bottom_offset,
unsigned int bpl, unsigned int padding, unsigned int lines);
void cx23885_cancel_buffers(struct cx23885_tsport *port);
extern int cx23885_restart_queue(struct cx23885_tsport *port,
struct cx23885_dmaqueue *q);
extern void cx23885_wakeup(struct cx23885_tsport *port,
struct cx23885_dmaqueue *q, u32 count);
extern void cx23885_gpio_set(struct cx23885_dev *dev, u32 mask);
extern void cx23885_gpio_clear(struct cx23885_dev *dev, u32 mask);
extern void cx23885_gpio_enable(struct cx23885_dev *dev, u32 mask,
int asoutput);
/* ----------------------------------------------------------- */
/* 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 int cx23885_tuner_callback(void *priv, int component,
int command, int arg);
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-video.c */
/* Video */
extern int cx23885_video_register(struct cx23885_dev *dev);
extern void cx23885_video_unregister(struct cx23885_dev *dev);
extern int cx23885_video_irq(struct cx23885_dev *dev, u32 status);
/* ----------------------------------------------------------- */
/* cx23885-vbi.c */
extern int cx23885_vbi_fmt(struct file *file, void *priv,
struct v4l2_format *f);
extern void cx23885_vbi_timeout(unsigned long data);
extern struct videobuf_queue_ops cx23885_vbi_qops;
/* cx23885-i2c.c */
extern int cx23885_i2c_register(struct cx23885_i2c *bus);
extern int cx23885_i2c_unregister(struct cx23885_i2c *bus);
extern void cx23885_av_clk(struct cx23885_dev *dev, int enable);
/* ----------------------------------------------------------- */
/* cx23885-417.c */
extern int cx23885_417_register(struct cx23885_dev *dev);
extern void cx23885_417_unregister(struct cx23885_dev *dev);
extern int cx23885_irq_417(struct cx23885_dev *dev, u32 status);
extern void cx23885_417_check_encoder(struct cx23885_dev *dev);
extern void cx23885_mc417_init(struct cx23885_dev *dev);
extern int mc417_memory_read(struct cx23885_dev *dev, u32 address, u32 *value);
extern int mc417_memory_write(struct cx23885_dev *dev, u32 address, u32 value);
/* ----------------------------------------------------------- */
/* tv norms */
static inline unsigned int norm_maxw(v4l2_std_id norm)
{
return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 720 : 768;
}
static inline unsigned int norm_maxh(v4l2_std_id norm)
{
return (norm & V4L2_STD_625_50) ? 576 : 480;
}
static inline unsigned int norm_swidth(v4l2_std_id norm)
{
return (norm & (V4L2_STD_MN & ~V4L2_STD_PAL_Nc)) ? 754 : 922;
}
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