cx18-dvb.rar

  • PUDN用户
    了解作者
  • Unix_Linux
    开发工具
  • 5KB
    文件大小
  • rar
    文件格式
  • 0
    收藏次数
  • 1 积分
    下载积分
  • 2
    下载次数
  • 2013-03-12 18:13
    上传日期
cx18 functions for DVB support.
cx18-dvb.rar
  • cx18-dvb.c
    13.5KB
  • cx18-dvb.h
    946B
内容介绍
/* * cx18 functions for DVB support * * */ #include "cx18-version.h" #include "cx18-dvb.h" #include "cx18-io.h" #include "cx18-queue.h" #include "cx18-streams.h" #include "cx18-cards.h" #include "cx18-gpio.h" #include "s5h1409.h" #include "mxl5005s.h" #include "zl10353.h" #include <linux/firmware.h> #include "mt352.h" #include "mt352_priv.h" #include "tuner-xc2028.h" DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr); #define CX18_REG_DMUX_NUM_PORT_0_CONTROL 0xd5a000 #define CX18_CLOCK_ENABLE2 0xc71024 #define CX18_DMUX_CLK_MASK 0x0080 /* * CX18_CARD_HVR_1600_ESMT * CX18_CARD_HVR_1600_SAMSUNG */ static struct mxl5005s_config hauppauge_hvr1600_tuner = { .i2c_address = 0xC6 >> 1, .if_freq = IF_FREQ_5380000HZ, .xtal_freq = CRYSTAL_FREQ_16000000HZ, .agc_mode = MXL_SINGLE_AGC, .tracking_filter = MXL_TF_C_H, .rssi_enable = MXL_RSSI_ENABLE, .cap_select = MXL_CAP_SEL_ENABLE, .div_out = MXL_DIV_OUT_4, .clock_out = MXL_CLOCK_OUT_DISABLE, .output_load = MXL5005S_IF_OUTPUT_LOAD_200_OHM, .top = MXL5005S_TOP_25P2, .mod_mode = MXL_DIGITAL_MODE, .if_mode = MXL_ZERO_IF, .qam_gain = 0x02, .AgcMasterByte = 0x00, }; static struct s5h1409_config hauppauge_hvr1600_config = { .demod_address = 0x32 >> 1, .output_mode = S5H1409_SERIAL_OUTPUT, .gpio = S5H1409_GPIO_ON, .qam_if = 44000, .inversion = S5H1409_INVERSION_OFF, .status_mode = S5H1409_DEMODLOCKING, .mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK, .hvr1600_opt = S5H1409_HVR1600_OPTIMIZE }; /* * CX18_CARD_LEADTEK_DVR3100H */ /* Information/confirmation of proper config values provided by Terry Wu */ static struct zl10353_config leadtek_dvr3100h_demod = { .demod_address = 0x1e >> 1, /* Datasheet suggested straps */ .if2 = 45600, /* 4.560 MHz IF from the XC3028 */ .parallel_ts = 1, /* Not a serial TS */ .no_tuner = 1, /* XC3028 is not behind the gate */ .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */ }; /* * CX18_CARD_YUAN_MPC718 */ /* * Due to * * 1. an absence of information on how to prgram the MT352 * 2. the Linux mt352 module pushing MT352 initialzation off onto us here * * We have to use an init sequence that *you* must extract from the Windows * driver (yuanrap.sys) and which we load as a firmware. * * If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual * with chip programming details, then I can remove this annoyance. */ static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream, const struct firmware **fw) { struct cx18 *cx = stream->cx; const char *fn = "dvb-cx18-mpc718-mt352.fw"; int ret; ret = request_firmware(fw, fn, &cx->pci_dev->dev); if (ret) CX18_ERR("Unable to open firmware file %s\n", fn); else { size_t sz = (*fw)->size; if (sz < 2 || sz > 64 || (sz % 2) != 0) { CX18_ERR("Firmware %s has a bad size: %lu bytes\n", fn, (unsigned long) sz); ret = -EILSEQ; release_firmware(*fw); *fw = NULL; } } if (ret) { CX18_ERR("The MPC718 board variant with the MT352 DVB-T" "demodualtor will not work without it\n"); CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware " "mpc718' if you need the firmware\n"); } return ret; } static int yuan_mpc718_mt352_init(struct dvb_frontend *fe) { struct cx18_dvb *dvb = container_of(fe->dvb, struct cx18_dvb, dvb_adapter); struct cx18_stream *stream = container_of(dvb, struct cx18_stream, dvb); const struct firmware *fw = NULL; int ret; int i; u8 buf[3]; ret = yuan_mpc718_mt352_reqfw(stream, &fw); if (ret) return ret; /* Loop through all the register-value pairs in the firmware file */ for (i = 0; i < fw->size; i += 2) { buf[0] = fw->data[i]; /* Intercept a few registers we want to set ourselves */ switch (buf[0]) { case TRL_NOMINAL_RATE_0: /* Set our custom OFDM bandwidth in the case below */ break; case TRL_NOMINAL_RATE_1: /* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */ /* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */ /* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */ buf[1] = 0x72; buf[2] = 0x49; mt352_write(fe, buf, 3); break; case INPUT_FREQ_0: /* Set our custom IF in the case below */ break; case INPUT_FREQ_1: /* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */ buf[1] = 0x31; buf[2] = 0xc0; mt352_write(fe, buf, 3); break; default: /* Pass through the register-value pair from the fw */ buf[1] = fw->data[i+1]; mt352_write(fe, buf, 2); break; } } buf[0] = (u8) TUNER_GO; buf[1] = 0x01; /* Go */ mt352_write(fe, buf, 2); release_firmware(fw); return 0; } static struct mt352_config yuan_mpc718_mt352_demod = { .demod_address = 0x1e >> 1, .adc_clock = 20480, /* 20.480 MHz */ .if2 = 4560, /* 4.560 MHz */ .no_tuner = 1, /* XC3028 is not behind the gate */ .demod_init = yuan_mpc718_mt352_init, }; static struct zl10353_config yuan_mpc718_zl10353_demod = { .demod_address = 0x1e >> 1, /* Datasheet suggested straps */ .if2 = 45600, /* 4.560 MHz IF from the XC3028 */ .parallel_ts = 1, /* Not a serial TS */ .no_tuner = 1, /* XC3028 is not behind the gate */ .disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */ }; static int dvb_register(struct cx18_stream *stream); /* Kernel DVB framework calls this when the feed needs to start. * The CX18 framework should enable the transport DMA handling * and queue processing. */ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed) { struct dvb_demux *demux = feed->demux; struct cx18_stream *stream = (struct cx18_stream *) demux->priv; struct cx18 *cx; int ret; u32 v; if (!stream) return -EINVAL; cx = stream->cx; CX18_DEBUG_INFO("Start feed: pid = 0x%x index = %d\n", feed->pid, feed->index); mutex_lock(&cx->serialize_lock); ret = cx18_init_on_first_open(cx); mutex_unlock(&cx->serialize_lock); if (ret) { CX18_ERR("Failed to initialize firmware starting DVB feed\n"); return ret; } ret = -EINVAL; switch (cx->card->type) { case CX18_CARD_HVR_1600_ESMT: case CX18_CARD_HVR_1600_SAMSUNG: v = cx18_read_reg(cx, CX18_REG_DMUX_NUM_PORT_0_CONTROL); v |= 0x00400000; /* Serial Mode */ v |= 0x00002000; /* Data Length - Byte */ v |= 0x00010000; /* Error - Polarity */ v |= 0x00020000; /* Error - Passthru */ v |= 0x000c0000; /* Error - Ignore */ cx18_write_reg(cx, v, CX18_REG_DMUX_NUM_PORT_0_CONTROL); break; case CX18_CARD_LEADTEK_DVR3100H: case CX18_CARD_YUAN_MPC718: default: /* Assumption - Parallel transport - Signalling * undefined or default. */ break; } if (!demux->dmx.frontend) return -EINVAL; mutex_lock(&stream->dvb.feedlock); if (stream->dvb.feeding++ == 0) { CX18_DEBUG_INFO("Starting Transport DMA\n"); mutex_lock(&cx->serialize_lock); set_bit(CX18_F_S_STREAMING, &stream->s_flags); ret = cx18_start_v4l2_encode_stream(stream); if (ret < 0) { CX18_DEBUG_INFO("Failed to start Transport DMA\n"); stream->dvb.feeding--; if (stream->dvb.feeding == 0) clear_bit(CX18_F_S_STREAMING, &stream->s_flags); } mutex_unlock(&cx->serialize_lock); } else ret = 0; mutex_unlock(&stream->dvb.feedlock); return ret; } /* Kernel DVB framework calls this when the feed needs to stop. */ static int cx18_dvb_stop_feed(struct dvb_demux_feed *feed) { struct dvb_demux *demux = feed->demux; struct cx18_stream *stream = (struct cx18_stream *)demux->priv; struct cx18 *cx; int ret = -EINVAL; if (stream) { cx = stream->cx; CX18_DEBUG_INFO("Stop feed: pid = 0x%x index = %d\n", feed->pid, feed->index); mutex_lock(&stream->dvb.feedlock); if (--stream->dvb.feeding == 0) { CX18_DEBUG_INFO("Stopping Transport DMA\n"); mutex_lock(&cx->serialize_lock); ret = cx18_stop_v4l2_encode_stream(
评论
    相关推荐
    • 数据库课程设计
      一个数据库课程设计,access管理工具实现,用的是窗体!
    • 数据库课程设计
      数据库课程设计十分完整有需要的请下载啊谢谢
    • 数据库课程设计
      广东工业大学数据库课程设计,可视化界面连接数据库,delphi7
    • 数据库课程设计
      数据库课程设计实验及其描述 数据库课程设计实验及其描述 数据库课程设计实验及其描述 数据库课程设计实验及其描述 数据库课程设计实验及其描述 数据库课程设计实验及其描述
    • 数据库课程设计
      数据库课程设计》由周爱武、汪海威、肖云编著,遵循数据库课程设计的具体要求,独立于具体的数据库教材,从实际应用系统的需求着手,引导读者逐步完成数据库设计全过程,重点讲解数据库系统的需求分析、概念设计、...
    • 数据库课程设计
      数据库课程设计人事管理系统 数据库课程设计人事管理系统数据库课程设计人事管理系统数据库课程设计人事管理系统数据库课程设计人事管理系统数据库课程设计人事管理系统数据库课程设计人事管理系统数据库课程设计...
    • 数据库课程设计
      数据库课程设计,基于visual basic自助银行管理系统,界面很清爽,实用。同学都说好,所以就上传了!!!
    • 数据库课程设计
      数据库课程设计 里面有详细的文档资料 包含数据库一切的图 以及生成的数据库表文件 期末得分为优秀
    • 数据库课程设计
      可以作为数据库课程设计,也可以作为Java的课程设计,内容全面。本资源转载的,非本人原创。用于交流学习,特此申明!
    • 数据库课程设计
      数据库课程设计蓝天大学学生管理系统 2.商店信息管理系统 3.实验室机房收费管理系统 4.图书馆资料检索系统 5.企业库存管理系统 6.仓库管理系统 7.工程项目管理系统 8.教材管理系统 9.企业人事管理系统 10.企业财务...