533 lines
15 KiB
C
533 lines
15 KiB
C
/*
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* Copyright (C) 2005-2006 Micronas USA Inc.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (Version 2) as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#include "saa7134.h"
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#include "saa7134-reg.h"
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/spinlock.h>
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#include <linux/wait.h>
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/time.h>
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#include <linux/mm.h>
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#include <linux/usb.h>
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#include <linux/i2c.h>
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#include <asm/byteorder.h>
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#include <media/v4l2-common.h>
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#include <media/v4l2-device.h>
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#include <media/v4l2-subdev.h>
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#include "go7007-priv.h"
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/*#define GO7007_HPI_DEBUG*/
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enum hpi_address {
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HPI_ADDR_VIDEO_BUFFER = 0xe4,
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HPI_ADDR_INIT_BUFFER = 0xea,
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HPI_ADDR_INTR_RET_VALUE = 0xee,
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HPI_ADDR_INTR_RET_DATA = 0xec,
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HPI_ADDR_INTR_STATUS = 0xf4,
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HPI_ADDR_INTR_WR_PARAM = 0xf6,
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HPI_ADDR_INTR_WR_INDEX = 0xf8,
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};
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enum gpio_command {
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GPIO_COMMAND_RESET = 0x00, /* 000b */
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GPIO_COMMAND_REQ1 = 0x04, /* 001b */
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GPIO_COMMAND_WRITE = 0x20, /* 010b */
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GPIO_COMMAND_REQ2 = 0x24, /* 011b */
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GPIO_COMMAND_READ = 0x80, /* 100b */
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GPIO_COMMAND_VIDEO = 0x84, /* 101b */
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GPIO_COMMAND_IDLE = 0xA0, /* 110b */
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GPIO_COMMAND_ADDR = 0xA4, /* 111b */
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};
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struct saa7134_go7007 {
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struct v4l2_subdev sd;
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struct saa7134_dev *dev;
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u8 *top;
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u8 *bottom;
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dma_addr_t top_dma;
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dma_addr_t bottom_dma;
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};
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static inline struct saa7134_go7007 *to_state(struct v4l2_subdev *sd)
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{
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return container_of(sd, struct saa7134_go7007, sd);
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}
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static const struct go7007_board_info board_voyager = {
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.flags = 0,
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.sensor_flags = GO7007_SENSOR_656 |
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GO7007_SENSOR_VALID_ENABLE |
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GO7007_SENSOR_TV |
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GO7007_SENSOR_VBI,
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.audio_flags = GO7007_AUDIO_I2S_MODE_1 |
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GO7007_AUDIO_WORD_16,
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.audio_rate = 48000,
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.audio_bclk_div = 8,
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.audio_main_div = 2,
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.hpi_buffer_cap = 7,
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.num_inputs = 1,
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.inputs = {
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{
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.name = "SAA7134",
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},
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},
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};
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/********************* Driver for GPIO HPI interface *********************/
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static int gpio_write(struct saa7134_dev *dev, u8 addr, u16 data)
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{
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saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
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/* Write HPI address */
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saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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/* Write low byte */
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saa_writeb(SAA7134_GPIO_GPSTATUS0, data & 0xff);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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/* Write high byte */
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saa_writeb(SAA7134_GPIO_GPSTATUS0, data >> 8);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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return 0;
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}
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static int gpio_read(struct saa7134_dev *dev, u8 addr, u16 *data)
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{
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saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
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/* Write HPI address */
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saa_writeb(SAA7134_GPIO_GPSTATUS0, addr);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
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/* Read low byte */
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
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saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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*data = saa_readb(SAA7134_GPIO_GPSTATUS0);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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/* Read high byte */
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_READ);
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saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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*data |= saa_readb(SAA7134_GPIO_GPSTATUS0) << 8;
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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return 0;
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}
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static int saa7134_go7007_interface_reset(struct go7007 *go)
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{
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struct saa7134_go7007 *saa = go->hpi_context;
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struct saa7134_dev *dev = saa->dev;
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u16 intr_val, intr_data;
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int count = 20;
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saa_clearb(SAA7134_TS_PARALLEL, 0x80); /* Disable TS interface */
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saa_writeb(SAA7134_GPIO_GPMODE2, 0xa4);
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saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_RESET);
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msleep(1);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
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msleep(10);
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saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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saa_readb(SAA7134_GPIO_GPSTATUS2);
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/*pr_debug("status is %s\n", saa_readb(SAA7134_GPIO_GPSTATUS2) & 0x40 ? "OK" : "not OK"); */
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/* enter command mode...(?) */
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ1);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_REQ2);
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do {
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saa_clearb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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saa_setb(SAA7134_GPIO_GPMODE3, SAA7134_GPIO_GPRESCAN);
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saa_readb(SAA7134_GPIO_GPSTATUS2);
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/*pr_info("gpio is %08x\n", saa_readl(SAA7134_GPIO_GPSTATUS0 >> 2)); */
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} while (--count > 0);
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/* Wait for an interrupt to indicate successful hardware reset */
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if (go7007_read_interrupt(go, &intr_val, &intr_data) < 0 ||
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(intr_val & ~0x1) != 0x55aa) {
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pr_err("saa7134-go7007: unable to reset the GO7007\n");
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return -1;
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}
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return 0;
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}
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static int saa7134_go7007_write_interrupt(struct go7007 *go, int addr, int data)
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{
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struct saa7134_go7007 *saa = go->hpi_context;
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struct saa7134_dev *dev = saa->dev;
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int i;
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u16 status_reg;
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#ifdef GO7007_HPI_DEBUG
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pr_debug("saa7134-go7007: WriteInterrupt: %04x %04x\n", addr, data);
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#endif
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for (i = 0; i < 100; ++i) {
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gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
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if (!(status_reg & 0x0010))
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break;
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msleep(10);
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}
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if (i == 100) {
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pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
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status_reg);
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return -1;
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}
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gpio_write(dev, HPI_ADDR_INTR_WR_PARAM, data);
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gpio_write(dev, HPI_ADDR_INTR_WR_INDEX, addr);
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return 0;
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}
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static int saa7134_go7007_read_interrupt(struct go7007 *go)
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{
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struct saa7134_go7007 *saa = go->hpi_context;
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struct saa7134_dev *dev = saa->dev;
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/* XXX we need to wait if there is no interrupt available */
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go->interrupt_available = 1;
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gpio_read(dev, HPI_ADDR_INTR_RET_VALUE, &go->interrupt_value);
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gpio_read(dev, HPI_ADDR_INTR_RET_DATA, &go->interrupt_data);
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#ifdef GO7007_HPI_DEBUG
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pr_debug("saa7134-go7007: ReadInterrupt: %04x %04x\n",
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go->interrupt_value, go->interrupt_data);
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#endif
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return 0;
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}
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static void saa7134_go7007_irq_ts_done(struct saa7134_dev *dev,
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unsigned long status)
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{
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struct go7007 *go = video_get_drvdata(dev->empress_dev);
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struct saa7134_go7007 *saa = go->hpi_context;
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if (!vb2_is_streaming(&go->vidq))
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return;
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if (0 != (status & 0x000f0000))
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pr_debug("saa7134-go7007: irq: lost %ld\n",
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(status >> 16) & 0x0f);
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if (status & 0x100000) {
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dma_sync_single_for_cpu(&dev->pci->dev,
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saa->bottom_dma, PAGE_SIZE, DMA_FROM_DEVICE);
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go7007_parse_video_stream(go, saa->bottom, PAGE_SIZE);
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saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
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} else {
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dma_sync_single_for_cpu(&dev->pci->dev,
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saa->top_dma, PAGE_SIZE, DMA_FROM_DEVICE);
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go7007_parse_video_stream(go, saa->top, PAGE_SIZE);
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saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
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}
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}
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static int saa7134_go7007_stream_start(struct go7007 *go)
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{
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struct saa7134_go7007 *saa = go->hpi_context;
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struct saa7134_dev *dev = saa->dev;
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saa->top_dma = dma_map_page(&dev->pci->dev, virt_to_page(saa->top),
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0, PAGE_SIZE, DMA_FROM_DEVICE);
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if (dma_mapping_error(&dev->pci->dev, saa->top_dma))
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return -ENOMEM;
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saa->bottom_dma = dma_map_page(&dev->pci->dev,
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virt_to_page(saa->bottom),
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0, PAGE_SIZE, DMA_FROM_DEVICE);
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if (dma_mapping_error(&dev->pci->dev, saa->bottom_dma)) {
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dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
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DMA_FROM_DEVICE);
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return -ENOMEM;
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}
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saa_writel(SAA7134_VIDEO_PORT_CTRL0 >> 2, 0xA300B000);
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saa_writel(SAA7134_VIDEO_PORT_CTRL4 >> 2, 0x40000200);
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/* Set HPI interface for video */
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saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
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saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_VIDEO_BUFFER);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
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saa_writeb(SAA7134_GPIO_GPMODE0, 0x00);
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/* Enable TS interface */
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saa_writeb(SAA7134_TS_PARALLEL, 0xe6);
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/* Reset TS interface */
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saa_setb(SAA7134_TS_SERIAL1, 0x01);
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saa_clearb(SAA7134_TS_SERIAL1, 0x01);
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/* Set up transfer block size */
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saa_writeb(SAA7134_TS_PARALLEL_SERIAL, 128 - 1);
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saa_writeb(SAA7134_TS_DMA0, ((PAGE_SIZE >> 7) - 1) & 0xff);
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saa_writeb(SAA7134_TS_DMA1, (PAGE_SIZE >> 15) & 0xff);
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saa_writeb(SAA7134_TS_DMA2, (PAGE_SIZE >> 31) & 0x3f);
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/* Enable video streaming mode */
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_VIDEO);
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saa_writel(SAA7134_RS_BA1(5), saa->top_dma);
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saa_writel(SAA7134_RS_BA2(5), saa->bottom_dma);
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saa_writel(SAA7134_RS_PITCH(5), 128);
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saa_writel(SAA7134_RS_CONTROL(5), SAA7134_RS_CONTROL_BURST_MAX);
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/* Enable TS FIFO */
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saa_setl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
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/* Enable DMA IRQ */
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saa_setl(SAA7134_IRQ1,
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SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
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return 0;
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}
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static int saa7134_go7007_stream_stop(struct go7007 *go)
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{
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struct saa7134_go7007 *saa = go->hpi_context;
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struct saa7134_dev *dev;
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if (!saa)
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return -EINVAL;
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dev = saa->dev;
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if (!dev)
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return -EINVAL;
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/* Shut down TS FIFO */
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saa_clearl(SAA7134_MAIN_CTRL, SAA7134_MAIN_CTRL_TE5);
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/* Disable DMA IRQ */
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saa_clearl(SAA7134_IRQ1,
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SAA7134_IRQ1_INTE_RA2_1 | SAA7134_IRQ1_INTE_RA2_0);
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/* Disable TS interface */
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saa_clearb(SAA7134_TS_PARALLEL, 0x80);
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dma_unmap_page(&dev->pci->dev, saa->top_dma, PAGE_SIZE,
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DMA_FROM_DEVICE);
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dma_unmap_page(&dev->pci->dev, saa->bottom_dma, PAGE_SIZE,
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DMA_FROM_DEVICE);
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return 0;
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}
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static int saa7134_go7007_send_firmware(struct go7007 *go, u8 *data, int len)
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{
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struct saa7134_go7007 *saa = go->hpi_context;
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struct saa7134_dev *dev = saa->dev;
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u16 status_reg;
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int i;
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#ifdef GO7007_HPI_DEBUG
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pr_debug("saa7134-go7007: DownloadBuffer sending %d bytes\n", len);
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#endif
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while (len > 0) {
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i = len > 64 ? 64 : len;
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saa_writeb(SAA7134_GPIO_GPMODE0, 0xff);
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saa_writeb(SAA7134_GPIO_GPSTATUS0, HPI_ADDR_INIT_BUFFER);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_ADDR);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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while (i-- > 0) {
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saa_writeb(SAA7134_GPIO_GPSTATUS0, *data);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_WRITE);
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saa_writeb(SAA7134_GPIO_GPSTATUS2, GPIO_COMMAND_IDLE);
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++data;
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--len;
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}
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for (i = 0; i < 100; ++i) {
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gpio_read(dev, HPI_ADDR_INTR_STATUS, &status_reg);
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if (!(status_reg & 0x0002))
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break;
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}
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if (i == 100) {
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pr_err("saa7134-go7007: device is hung, status reg = 0x%04x\n",
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status_reg);
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return -1;
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}
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}
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return 0;
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}
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static const struct go7007_hpi_ops saa7134_go7007_hpi_ops = {
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.interface_reset = saa7134_go7007_interface_reset,
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.write_interrupt = saa7134_go7007_write_interrupt,
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.read_interrupt = saa7134_go7007_read_interrupt,
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.stream_start = saa7134_go7007_stream_start,
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.stream_stop = saa7134_go7007_stream_stop,
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.send_firmware = saa7134_go7007_send_firmware,
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};
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MODULE_FIRMWARE("go7007/go7007tv.bin");
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/* --------------------------------------------------------------------------*/
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static int saa7134_go7007_s_std(struct v4l2_subdev *sd, v4l2_std_id norm)
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{
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#if 0
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struct saa7134_go7007 *saa = to_state(sd);
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struct saa7134_dev *dev = saa->dev;
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return saa7134_s_std_internal(dev, NULL, norm);
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#else
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return 0;
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#endif
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}
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static const struct v4l2_subdev_video_ops saa7134_go7007_video_ops = {
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.s_std = saa7134_go7007_s_std,
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};
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static const struct v4l2_subdev_ops saa7134_go7007_sd_ops = {
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.video = &saa7134_go7007_video_ops,
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};
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/* --------------------------------------------------------------------------*/
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/********************* Add/remove functions *********************/
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static int saa7134_go7007_init(struct saa7134_dev *dev)
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{
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struct go7007 *go;
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struct saa7134_go7007 *saa;
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struct v4l2_subdev *sd;
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pr_debug("saa7134-go7007: probing new SAA713X board\n");
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go = go7007_alloc(&board_voyager, &dev->pci->dev);
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if (go == NULL)
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return -ENOMEM;
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saa = kzalloc(sizeof(struct saa7134_go7007), GFP_KERNEL);
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if (saa == NULL) {
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kfree(go);
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return -ENOMEM;
|
|
}
|
|
|
|
go->board_id = GO7007_BOARDID_PCI_VOYAGER;
|
|
snprintf(go->bus_info, sizeof(go->bus_info), "PCI:%s", pci_name(dev->pci));
|
|
strlcpy(go->name, saa7134_boards[dev->board].name, sizeof(go->name));
|
|
go->hpi_ops = &saa7134_go7007_hpi_ops;
|
|
go->hpi_context = saa;
|
|
saa->dev = dev;
|
|
|
|
/* Init the subdevice interface */
|
|
sd = &saa->sd;
|
|
v4l2_subdev_init(sd, &saa7134_go7007_sd_ops);
|
|
v4l2_set_subdevdata(sd, saa);
|
|
strncpy(sd->name, "saa7134-go7007", sizeof(sd->name));
|
|
|
|
/* Allocate a couple pages for receiving the compressed stream */
|
|
saa->top = (u8 *)get_zeroed_page(GFP_KERNEL);
|
|
if (!saa->top)
|
|
goto allocfail;
|
|
saa->bottom = (u8 *)get_zeroed_page(GFP_KERNEL);
|
|
if (!saa->bottom)
|
|
goto allocfail;
|
|
|
|
/* Boot the GO7007 */
|
|
if (go7007_boot_encoder(go, go->board_info->flags &
|
|
GO7007_BOARD_USE_ONBOARD_I2C) < 0)
|
|
goto allocfail;
|
|
|
|
/* Do any final GO7007 initialization, then register the
|
|
* V4L2 and ALSA interfaces */
|
|
if (go7007_register_encoder(go, go->board_info->num_i2c_devs) < 0)
|
|
goto allocfail;
|
|
|
|
/* Register the subdevice interface with the go7007 device */
|
|
if (v4l2_device_register_subdev(&go->v4l2_dev, sd) < 0)
|
|
pr_info("saa7134-go7007: register subdev failed\n");
|
|
|
|
dev->empress_dev = &go->vdev;
|
|
|
|
go->status = STATUS_ONLINE;
|
|
return 0;
|
|
|
|
allocfail:
|
|
if (saa->top)
|
|
free_page((unsigned long)saa->top);
|
|
if (saa->bottom)
|
|
free_page((unsigned long)saa->bottom);
|
|
kfree(saa);
|
|
kfree(go);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
static int saa7134_go7007_fini(struct saa7134_dev *dev)
|
|
{
|
|
struct go7007 *go;
|
|
struct saa7134_go7007 *saa;
|
|
|
|
if (NULL == dev->empress_dev)
|
|
return 0;
|
|
|
|
go = video_get_drvdata(dev->empress_dev);
|
|
if (go->audio_enabled)
|
|
go7007_snd_remove(go);
|
|
|
|
saa = go->hpi_context;
|
|
go->status = STATUS_SHUTDOWN;
|
|
free_page((unsigned long)saa->top);
|
|
free_page((unsigned long)saa->bottom);
|
|
v4l2_device_unregister_subdev(&saa->sd);
|
|
kfree(saa);
|
|
video_unregister_device(&go->vdev);
|
|
|
|
v4l2_device_put(&go->v4l2_dev);
|
|
dev->empress_dev = NULL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static struct saa7134_mpeg_ops saa7134_go7007_ops = {
|
|
.type = SAA7134_MPEG_GO7007,
|
|
.init = saa7134_go7007_init,
|
|
.fini = saa7134_go7007_fini,
|
|
.irq_ts_done = saa7134_go7007_irq_ts_done,
|
|
};
|
|
|
|
static int __init saa7134_go7007_mod_init(void)
|
|
{
|
|
return saa7134_ts_register(&saa7134_go7007_ops);
|
|
}
|
|
|
|
static void __exit saa7134_go7007_mod_cleanup(void)
|
|
{
|
|
saa7134_ts_unregister(&saa7134_go7007_ops);
|
|
}
|
|
|
|
module_init(saa7134_go7007_mod_init);
|
|
module_exit(saa7134_go7007_mod_cleanup);
|
|
|
|
MODULE_LICENSE("GPL v2");
|