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V4L/DVB (12182): cx18: Add DVB-T support for Yuan MPC-718 cards with an MT352 or ZL10353
Add DVB-T support for Yuan MPC-718 cards with an MT352 or ZL10353 demodulator. There are apparently some units with a DiBcom demodulator which could be supported by one of the dib7000 modules - but this is not implemented in the cx18 driver (yet). Due to lack of porgramming details for the MT352 and the mt352 module requiring a "demod_init" function, a "firmware" must be obtained and loaded to get DVB-T working for Yuan MPC-718 cards with an MT352. Tested-by: Steve Firth <firth650@btinternet.com> Signed-off-by: Andy Walls <awalls@radix.net> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Andy Walls
Mauro Carvalho Chehab
parent
9f38a920b2
commit
ff861fb21e
@ -204,8 +204,8 @@ static const struct cx18_card cx18_card_mpc718 = {
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.v4l2_capabilities = CX18_CAP_ENCODER,
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.hw_audio_ctrl = CX18_HW_418_AV,
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.hw_muxer = CX18_HW_GPIO_MUX,
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.hw_all = CX18_HW_418_AV | CX18_HW_TUNER | CX18_HW_GPIO_MUX |
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CX18_HW_GPIO_RESET_CTRL,
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.hw_all = CX18_HW_418_AV | CX18_HW_TUNER |
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CX18_HW_GPIO_MUX | CX18_HW_DVB | CX18_HW_GPIO_RESET_CTRL,
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.video_inputs = {
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{ CX18_CARD_INPUT_VID_TUNER, 0, CX18_AV_COMPOSITE2 },
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{ CX18_CARD_INPUT_SVIDEO1, 1,
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@ -30,6 +30,10 @@
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#include "s5h1409.h"
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#include "mxl5005s.h"
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#include "zl10353.h"
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#include <linux/firmware.h>
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#include "mt352.h"
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#include "mt352_priv.h"
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#include "tuner-xc2028.h"
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DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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@ -38,6 +42,11 @@ DVB_DEFINE_MOD_OPT_ADAPTER_NR(adapter_nr);
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#define CX18_CLOCK_ENABLE2 0xc71024
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#define CX18_DMUX_CLK_MASK 0x0080
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/*
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* CX18_CARD_HVR_1600_ESMT
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* CX18_CARD_HVR_1600_SAMSUNG
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*/
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static struct mxl5005s_config hauppauge_hvr1600_tuner = {
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.i2c_address = 0xC6 >> 1,
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.if_freq = IF_FREQ_5380000HZ,
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@ -65,6 +74,9 @@ static struct s5h1409_config hauppauge_hvr1600_config = {
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.mpeg_timing = S5H1409_MPEGTIMING_CONTINOUS_NONINVERTING_CLOCK
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};
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/*
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* CX18_CARD_LEADTEK_DVR3100H
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*/
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/* Information/confirmation of proper config values provided by Terry Wu */
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static struct zl10353_config leadtek_dvr3100h_demod = {
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.demod_address = 0x1e >> 1, /* Datasheet suggested straps */
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@ -74,6 +86,121 @@ static struct zl10353_config leadtek_dvr3100h_demod = {
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.disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
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};
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/*
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* CX18_CARD_YUAN_MPC718
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*/
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/*
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* Due to
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*
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* 1. an absence of information on how to prgram the MT352
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* 2. the Linux mt352 module pushing MT352 initialzation off onto us here
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*
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* We have to use an init sequence that *you* must extract from the Windows
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* driver (yuanrap.sys) and which we load as a firmware.
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*
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* If someone can provide me with a Zarlink MT352 (Intel CE6352?) Design Manual
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* with chip programming details, then I can remove this annoyance.
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*/
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static int yuan_mpc718_mt352_reqfw(struct cx18_stream *stream,
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const struct firmware **fw)
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{
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struct cx18 *cx = stream->cx;
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const char *fn = "dvb-cx18-mpc718-mt352.fw";
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int ret;
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ret = request_firmware(fw, fn, &cx->pci_dev->dev);
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if (ret)
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CX18_ERR("Unable to open firmware file %s\n", fn);
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else {
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size_t sz = (*fw)->size;
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if (sz < 2 || sz > 64 || (sz % 2) != 0) {
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CX18_ERR("Firmware %s has a bad size: %lu bytes\n",
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fn, (unsigned long) sz);
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ret = -EILSEQ;
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release_firmware(*fw);
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*fw = NULL;
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}
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}
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if (ret) {
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CX18_ERR("The MPC718 board variant with the MT352 DVB-T"
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"demodualtor will not work without it\n");
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CX18_ERR("Run 'linux/Documentation/dvb/get_dvb_firmware "
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"mpc718' if you need the firmware\n");
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}
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return ret;
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}
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static int yuan_mpc718_mt352_init(struct dvb_frontend *fe)
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{
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struct cx18_dvb *dvb = container_of(fe->dvb,
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struct cx18_dvb, dvb_adapter);
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struct cx18_stream *stream = container_of(dvb, struct cx18_stream, dvb);
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const struct firmware *fw = NULL;
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int ret;
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int i;
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u8 buf[3];
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ret = yuan_mpc718_mt352_reqfw(stream, &fw);
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if (ret)
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return ret;
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/* Loop through all the register-value pairs in the firmware file */
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for (i = 0; i < fw->size; i += 2) {
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buf[0] = fw->data[i];
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/* Intercept a few registers we want to set ourselves */
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switch (buf[0]) {
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case TRL_NOMINAL_RATE_0:
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/* Set our custom OFDM bandwidth in the case below */
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break;
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case TRL_NOMINAL_RATE_1:
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/* 6 MHz: 64/7 * 6/8 / 20.48 * 2^16 = 0x55b6.db6 */
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/* 7 MHz: 64/7 * 7/8 / 20.48 * 2^16 = 0x6400 */
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/* 8 MHz: 64/7 * 8/8 / 20.48 * 2^16 = 0x7249.249 */
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buf[1] = 0x72;
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buf[2] = 0x49;
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mt352_write(fe, buf, 3);
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break;
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case INPUT_FREQ_0:
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/* Set our custom IF in the case below */
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break;
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case INPUT_FREQ_1:
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/* 4.56 MHz IF: (20.48 - 4.56)/20.48 * 2^14 = 0x31c0 */
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buf[1] = 0x31;
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buf[2] = 0xc0;
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mt352_write(fe, buf, 3);
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break;
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default:
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/* Pass through the register-value pair from the fw */
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buf[1] = fw->data[i+1];
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mt352_write(fe, buf, 2);
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break;
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}
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}
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buf[0] = (u8) TUNER_GO;
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buf[1] = 0x01; /* Go */
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mt352_write(fe, buf, 2);
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release_firmware(fw);
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return 0;
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}
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static struct mt352_config yuan_mpc718_mt352_demod = {
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.demod_address = 0x1e >> 1,
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.adc_clock = 20480, /* 20.480 MHz */
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.if2 = 4560, /* 4.560 MHz */
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.no_tuner = 1, /* XC3028 is not behind the gate */
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.demod_init = yuan_mpc718_mt352_init,
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};
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static struct zl10353_config yuan_mpc718_zl10353_demod = {
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.demod_address = 0x1e >> 1, /* Datasheet suggested straps */
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.if2 = 45600, /* 4.560 MHz IF from the XC3028 */
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.parallel_ts = 1, /* Not a serial TS */
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.no_tuner = 1, /* XC3028 is not behind the gate */
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.disable_i2c_gate_ctrl = 1, /* Disable the I2C gate */
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};
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static int dvb_register(struct cx18_stream *stream);
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/* Kernel DVB framework calls this when the feed needs to start.
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@ -113,6 +240,7 @@ static int cx18_dvb_start_feed(struct dvb_demux_feed *feed)
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break;
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case CX18_CARD_LEADTEK_DVR3100H:
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case CX18_CARD_YUAN_MPC718:
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default:
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/* Assumption - Parallel transport - Signalling
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* undefined or default.
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@ -326,6 +454,38 @@ static int dvb_register(struct cx18_stream *stream)
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fe->ops.tuner_ops.set_config(fe, &ctrl);
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}
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break;
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case CX18_CARD_YUAN_MPC718:
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/*
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* TODO
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* Apparently, these cards also could instead have a
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* DiBcom demod supported by one of the db7000 drivers
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*/
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dvb->fe = dvb_attach(mt352_attach,
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&yuan_mpc718_mt352_demod,
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&cx->i2c_adap[1]);
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if (dvb->fe == NULL)
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dvb->fe = dvb_attach(zl10353_attach,
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&yuan_mpc718_zl10353_demod,
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&cx->i2c_adap[1]);
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if (dvb->fe != NULL) {
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struct dvb_frontend *fe;
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struct xc2028_config cfg = {
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.i2c_adap = &cx->i2c_adap[1],
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.i2c_addr = 0xc2 >> 1,
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.ctrl = NULL,
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};
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static struct xc2028_ctrl ctrl = {
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.fname = XC2028_DEFAULT_FIRMWARE,
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.max_len = 64,
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.demod = XC3028_FE_ZARLINK456,
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.type = XC2028_AUTO,
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};
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fe = dvb_attach(xc2028_attach, dvb->fe, &cfg);
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if (fe != NULL && fe->ops.tuner_ops.set_config != NULL)
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fe->ops.tuner_ops.set_config(fe, &ctrl);
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}
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break;
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default:
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/* No Digital Tv Support */
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break;
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