174ba9207SThomas Gleixner // SPDX-License-Identifier: GPL-2.0-or-later
29a0bf528SMauro Carvalho Chehab /*
39a0bf528SMauro Carvalho Chehab Driver for Philips tda10086 DVBS Demodulator
49a0bf528SMauro Carvalho Chehab
59a0bf528SMauro Carvalho Chehab (c) 2006 Andrew de Quincey
69a0bf528SMauro Carvalho Chehab
79a0bf528SMauro Carvalho Chehab
89a0bf528SMauro Carvalho Chehab */
99a0bf528SMauro Carvalho Chehab
109a0bf528SMauro Carvalho Chehab #include <linux/init.h>
119a0bf528SMauro Carvalho Chehab #include <linux/module.h>
129a0bf528SMauro Carvalho Chehab #include <linux/device.h>
139a0bf528SMauro Carvalho Chehab #include <linux/jiffies.h>
149a0bf528SMauro Carvalho Chehab #include <linux/string.h>
159a0bf528SMauro Carvalho Chehab #include <linux/slab.h>
169a0bf528SMauro Carvalho Chehab
17fada1935SMauro Carvalho Chehab #include <media/dvb_frontend.h>
189a0bf528SMauro Carvalho Chehab #include "tda10086.h"
199a0bf528SMauro Carvalho Chehab
20ddc11db2SMauro Carvalho Chehab #define SACLK 96000000U
219a0bf528SMauro Carvalho Chehab
229a0bf528SMauro Carvalho Chehab struct tda10086_state {
239a0bf528SMauro Carvalho Chehab struct i2c_adapter* i2c;
249a0bf528SMauro Carvalho Chehab const struct tda10086_config* config;
259a0bf528SMauro Carvalho Chehab struct dvb_frontend frontend;
269a0bf528SMauro Carvalho Chehab
279a0bf528SMauro Carvalho Chehab /* private demod data */
289a0bf528SMauro Carvalho Chehab u32 frequency;
299a0bf528SMauro Carvalho Chehab u32 symbol_rate;
309a0bf528SMauro Carvalho Chehab bool has_lock;
319a0bf528SMauro Carvalho Chehab };
329a0bf528SMauro Carvalho Chehab
339a0bf528SMauro Carvalho Chehab static int debug;
349a0bf528SMauro Carvalho Chehab #define dprintk(args...) \
359a0bf528SMauro Carvalho Chehab do { \
369a0bf528SMauro Carvalho Chehab if (debug) printk(KERN_DEBUG "tda10086: " args); \
379a0bf528SMauro Carvalho Chehab } while (0)
389a0bf528SMauro Carvalho Chehab
tda10086_write_byte(struct tda10086_state * state,int reg,int data)399a0bf528SMauro Carvalho Chehab static int tda10086_write_byte(struct tda10086_state *state, int reg, int data)
409a0bf528SMauro Carvalho Chehab {
419a0bf528SMauro Carvalho Chehab int ret;
429a0bf528SMauro Carvalho Chehab u8 b0[] = { reg, data };
439a0bf528SMauro Carvalho Chehab struct i2c_msg msg = { .flags = 0, .buf = b0, .len = 2 };
449a0bf528SMauro Carvalho Chehab
459a0bf528SMauro Carvalho Chehab msg.addr = state->config->demod_address;
469a0bf528SMauro Carvalho Chehab ret = i2c_transfer(state->i2c, &msg, 1);
479a0bf528SMauro Carvalho Chehab
489a0bf528SMauro Carvalho Chehab if (ret != 1)
499a0bf528SMauro Carvalho Chehab dprintk("%s: error reg=0x%x, data=0x%x, ret=%i\n",
509a0bf528SMauro Carvalho Chehab __func__, reg, data, ret);
519a0bf528SMauro Carvalho Chehab
529a0bf528SMauro Carvalho Chehab return (ret != 1) ? ret : 0;
539a0bf528SMauro Carvalho Chehab }
549a0bf528SMauro Carvalho Chehab
tda10086_read_byte(struct tda10086_state * state,int reg)559a0bf528SMauro Carvalho Chehab static int tda10086_read_byte(struct tda10086_state *state, int reg)
569a0bf528SMauro Carvalho Chehab {
579a0bf528SMauro Carvalho Chehab int ret;
589a0bf528SMauro Carvalho Chehab u8 b0[] = { reg };
599a0bf528SMauro Carvalho Chehab u8 b1[] = { 0 };
609a0bf528SMauro Carvalho Chehab struct i2c_msg msg[] = {{ .flags = 0, .buf = b0, .len = 1 },
619a0bf528SMauro Carvalho Chehab { .flags = I2C_M_RD, .buf = b1, .len = 1 }};
629a0bf528SMauro Carvalho Chehab
639a0bf528SMauro Carvalho Chehab msg[0].addr = state->config->demod_address;
649a0bf528SMauro Carvalho Chehab msg[1].addr = state->config->demod_address;
659a0bf528SMauro Carvalho Chehab ret = i2c_transfer(state->i2c, msg, 2);
669a0bf528SMauro Carvalho Chehab
679a0bf528SMauro Carvalho Chehab if (ret != 2) {
689a0bf528SMauro Carvalho Chehab dprintk("%s: error reg=0x%x, ret=%i\n", __func__, reg,
699a0bf528SMauro Carvalho Chehab ret);
709a0bf528SMauro Carvalho Chehab return ret;
719a0bf528SMauro Carvalho Chehab }
729a0bf528SMauro Carvalho Chehab
739a0bf528SMauro Carvalho Chehab return b1[0];
749a0bf528SMauro Carvalho Chehab }
759a0bf528SMauro Carvalho Chehab
tda10086_write_mask(struct tda10086_state * state,int reg,int mask,int data)769a0bf528SMauro Carvalho Chehab static int tda10086_write_mask(struct tda10086_state *state, int reg, int mask, int data)
779a0bf528SMauro Carvalho Chehab {
789a0bf528SMauro Carvalho Chehab int val;
799a0bf528SMauro Carvalho Chehab
809a0bf528SMauro Carvalho Chehab /* read a byte and check */
819a0bf528SMauro Carvalho Chehab val = tda10086_read_byte(state, reg);
829a0bf528SMauro Carvalho Chehab if (val < 0)
839a0bf528SMauro Carvalho Chehab return val;
849a0bf528SMauro Carvalho Chehab
859a0bf528SMauro Carvalho Chehab /* mask if off */
869a0bf528SMauro Carvalho Chehab val = val & ~mask;
879a0bf528SMauro Carvalho Chehab val |= data & 0xff;
889a0bf528SMauro Carvalho Chehab
899a0bf528SMauro Carvalho Chehab /* write it out again */
909a0bf528SMauro Carvalho Chehab return tda10086_write_byte(state, reg, val);
919a0bf528SMauro Carvalho Chehab }
929a0bf528SMauro Carvalho Chehab
tda10086_init(struct dvb_frontend * fe)939a0bf528SMauro Carvalho Chehab static int tda10086_init(struct dvb_frontend* fe)
949a0bf528SMauro Carvalho Chehab {
959a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
969a0bf528SMauro Carvalho Chehab u8 t22k_off = 0x80;
979a0bf528SMauro Carvalho Chehab
989a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
999a0bf528SMauro Carvalho Chehab
1009a0bf528SMauro Carvalho Chehab if (state->config->diseqc_tone)
1019a0bf528SMauro Carvalho Chehab t22k_off = 0;
1029a0bf528SMauro Carvalho Chehab /* reset */
1039a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x00, 0x00);
1049a0bf528SMauro Carvalho Chehab msleep(10);
1059a0bf528SMauro Carvalho Chehab
1069a0bf528SMauro Carvalho Chehab /* misc setup */
1079a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x01, 0x94);
1089a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x02, 0x35); /* NOTE: TT drivers appear to disable CSWP */
1099a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x03, 0xe4);
1109a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x04, 0x43);
1119a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x0c, 0x0c);
1129a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x1b, 0xb0); /* noise threshold */
1139a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x20, 0x89); /* misc */
1149a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x30, 0x04); /* acquisition period length */
1159a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x32, 0x00); /* irq off */
1169a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x31, 0x56); /* setup AFC */
1179a0bf528SMauro Carvalho Chehab
1189a0bf528SMauro Carvalho Chehab /* setup PLL (this assumes SACLK = 96MHz) */
1199a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x55, 0x2c); /* misc PLL setup */
1209a0bf528SMauro Carvalho Chehab if (state->config->xtal_freq == TDA10086_XTAL_16M) {
1219a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3a, 0x0b); /* M=12 */
1229a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3b, 0x01); /* P=2 */
1239a0bf528SMauro Carvalho Chehab } else {
1249a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3a, 0x17); /* M=24 */
1259a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3b, 0x00); /* P=1 */
1269a0bf528SMauro Carvalho Chehab }
1279a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x55, 0x20, 0x00); /* powerup PLL */
1289a0bf528SMauro Carvalho Chehab
1299a0bf528SMauro Carvalho Chehab /* setup TS interface */
1309a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x11, 0x81);
1319a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x12, 0x81);
1329a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x19, 0x40); /* parallel mode A + MSBFIRST */
1339a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x56, 0x80); /* powerdown WPLL - unused in the mode we use */
1349a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x57, 0x08); /* bypass WPLL - unused in the mode we use */
1359a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x10, 0x2a);
1369a0bf528SMauro Carvalho Chehab
1379a0bf528SMauro Carvalho Chehab /* setup ADC */
1389a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x58, 0x61); /* ADC setup */
1399a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x58, 0x01, 0x00); /* powerup ADC */
1409a0bf528SMauro Carvalho Chehab
1419a0bf528SMauro Carvalho Chehab /* setup AGC */
1429a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x05, 0x0B);
1439a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x37, 0x63);
1449a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3f, 0x0a); /* NOTE: flydvb varies it */
1459a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x40, 0x64);
1469a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x41, 0x4f);
1479a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x42, 0x43);
1489a0bf528SMauro Carvalho Chehab
1499a0bf528SMauro Carvalho Chehab /* setup viterbi */
1509a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x1a, 0x11); /* VBER 10^6, DVB, QPSK */
1519a0bf528SMauro Carvalho Chehab
1529a0bf528SMauro Carvalho Chehab /* setup carrier recovery */
1539a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3d, 0x80);
1549a0bf528SMauro Carvalho Chehab
1559a0bf528SMauro Carvalho Chehab /* setup SEC */
1569a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, t22k_off); /* all SEC off, 22k tone */
1579a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x34, (((1<<19) * (22000/1000)) / (SACLK/1000)));
1589a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x35, (((1<<19) * (22000/1000)) / (SACLK/1000)) >> 8);
1599a0bf528SMauro Carvalho Chehab
1609a0bf528SMauro Carvalho Chehab return 0;
1619a0bf528SMauro Carvalho Chehab }
1629a0bf528SMauro Carvalho Chehab
tda10086_diseqc_wait(struct tda10086_state * state)1639a0bf528SMauro Carvalho Chehab static void tda10086_diseqc_wait(struct tda10086_state *state)
1649a0bf528SMauro Carvalho Chehab {
1659a0bf528SMauro Carvalho Chehab unsigned long timeout = jiffies + msecs_to_jiffies(200);
1669a0bf528SMauro Carvalho Chehab while (!(tda10086_read_byte(state, 0x50) & 0x01)) {
1679a0bf528SMauro Carvalho Chehab if(time_after(jiffies, timeout)) {
1689a0bf528SMauro Carvalho Chehab printk("%s: diseqc queue not ready, command may be lost.\n", __func__);
1699a0bf528SMauro Carvalho Chehab break;
1709a0bf528SMauro Carvalho Chehab }
1719a0bf528SMauro Carvalho Chehab msleep(10);
1729a0bf528SMauro Carvalho Chehab }
1739a0bf528SMauro Carvalho Chehab }
1749a0bf528SMauro Carvalho Chehab
tda10086_set_tone(struct dvb_frontend * fe,enum fe_sec_tone_mode tone)1750df289a2SMauro Carvalho Chehab static int tda10086_set_tone(struct dvb_frontend *fe,
1760df289a2SMauro Carvalho Chehab enum fe_sec_tone_mode tone)
1779a0bf528SMauro Carvalho Chehab {
1789a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
1799a0bf528SMauro Carvalho Chehab u8 t22k_off = 0x80;
1809a0bf528SMauro Carvalho Chehab
1819a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
1829a0bf528SMauro Carvalho Chehab
1839a0bf528SMauro Carvalho Chehab if (state->config->diseqc_tone)
1849a0bf528SMauro Carvalho Chehab t22k_off = 0;
1859a0bf528SMauro Carvalho Chehab
1869a0bf528SMauro Carvalho Chehab switch (tone) {
1879a0bf528SMauro Carvalho Chehab case SEC_TONE_OFF:
1889a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, t22k_off);
1899a0bf528SMauro Carvalho Chehab break;
1909a0bf528SMauro Carvalho Chehab
1919a0bf528SMauro Carvalho Chehab case SEC_TONE_ON:
1929a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, 0x01 + t22k_off);
1939a0bf528SMauro Carvalho Chehab break;
1949a0bf528SMauro Carvalho Chehab }
1959a0bf528SMauro Carvalho Chehab
1969a0bf528SMauro Carvalho Chehab return 0;
1979a0bf528SMauro Carvalho Chehab }
1989a0bf528SMauro Carvalho Chehab
tda10086_send_master_cmd(struct dvb_frontend * fe,struct dvb_diseqc_master_cmd * cmd)1999a0bf528SMauro Carvalho Chehab static int tda10086_send_master_cmd (struct dvb_frontend* fe,
2009a0bf528SMauro Carvalho Chehab struct dvb_diseqc_master_cmd* cmd)
2019a0bf528SMauro Carvalho Chehab {
2029a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
2039a0bf528SMauro Carvalho Chehab int i;
2049a0bf528SMauro Carvalho Chehab u8 oldval;
2059a0bf528SMauro Carvalho Chehab u8 t22k_off = 0x80;
2069a0bf528SMauro Carvalho Chehab
2079a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
2089a0bf528SMauro Carvalho Chehab
2099a0bf528SMauro Carvalho Chehab if (state->config->diseqc_tone)
2109a0bf528SMauro Carvalho Chehab t22k_off = 0;
2119a0bf528SMauro Carvalho Chehab
2129a0bf528SMauro Carvalho Chehab if (cmd->msg_len > 6)
2139a0bf528SMauro Carvalho Chehab return -EINVAL;
2149a0bf528SMauro Carvalho Chehab oldval = tda10086_read_byte(state, 0x36);
2159a0bf528SMauro Carvalho Chehab
2169a0bf528SMauro Carvalho Chehab for(i=0; i< cmd->msg_len; i++) {
2179a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x48+i, cmd->msg[i]);
2189a0bf528SMauro Carvalho Chehab }
2199a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, (0x08 + t22k_off)
2209a0bf528SMauro Carvalho Chehab | ((cmd->msg_len - 1) << 4));
2219a0bf528SMauro Carvalho Chehab
2229a0bf528SMauro Carvalho Chehab tda10086_diseqc_wait(state);
2239a0bf528SMauro Carvalho Chehab
2249a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, oldval);
2259a0bf528SMauro Carvalho Chehab
2269a0bf528SMauro Carvalho Chehab return 0;
2279a0bf528SMauro Carvalho Chehab }
2289a0bf528SMauro Carvalho Chehab
tda10086_send_burst(struct dvb_frontend * fe,enum fe_sec_mini_cmd minicmd)2290df289a2SMauro Carvalho Chehab static int tda10086_send_burst(struct dvb_frontend *fe,
2300df289a2SMauro Carvalho Chehab enum fe_sec_mini_cmd minicmd)
2319a0bf528SMauro Carvalho Chehab {
2329a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
2339a0bf528SMauro Carvalho Chehab u8 oldval = tda10086_read_byte(state, 0x36);
2349a0bf528SMauro Carvalho Chehab u8 t22k_off = 0x80;
2359a0bf528SMauro Carvalho Chehab
2369a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
2379a0bf528SMauro Carvalho Chehab
2389a0bf528SMauro Carvalho Chehab if (state->config->diseqc_tone)
2399a0bf528SMauro Carvalho Chehab t22k_off = 0;
2409a0bf528SMauro Carvalho Chehab
2419a0bf528SMauro Carvalho Chehab switch(minicmd) {
2429a0bf528SMauro Carvalho Chehab case SEC_MINI_A:
2439a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, 0x04 + t22k_off);
2449a0bf528SMauro Carvalho Chehab break;
2459a0bf528SMauro Carvalho Chehab
2469a0bf528SMauro Carvalho Chehab case SEC_MINI_B:
2479a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, 0x06 + t22k_off);
2489a0bf528SMauro Carvalho Chehab break;
2499a0bf528SMauro Carvalho Chehab }
2509a0bf528SMauro Carvalho Chehab
2519a0bf528SMauro Carvalho Chehab tda10086_diseqc_wait(state);
2529a0bf528SMauro Carvalho Chehab
2539a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x36, oldval);
2549a0bf528SMauro Carvalho Chehab
2559a0bf528SMauro Carvalho Chehab return 0;
2569a0bf528SMauro Carvalho Chehab }
2579a0bf528SMauro Carvalho Chehab
tda10086_set_inversion(struct tda10086_state * state,struct dtv_frontend_properties * fe_params)2589a0bf528SMauro Carvalho Chehab static int tda10086_set_inversion(struct tda10086_state *state,
2599a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *fe_params)
2609a0bf528SMauro Carvalho Chehab {
2619a0bf528SMauro Carvalho Chehab u8 invval = 0x80;
2629a0bf528SMauro Carvalho Chehab
2639a0bf528SMauro Carvalho Chehab dprintk ("%s %i %i\n", __func__, fe_params->inversion, state->config->invert);
2649a0bf528SMauro Carvalho Chehab
2659a0bf528SMauro Carvalho Chehab switch(fe_params->inversion) {
2669a0bf528SMauro Carvalho Chehab case INVERSION_OFF:
2679a0bf528SMauro Carvalho Chehab if (state->config->invert)
2689a0bf528SMauro Carvalho Chehab invval = 0x40;
2699a0bf528SMauro Carvalho Chehab break;
2709a0bf528SMauro Carvalho Chehab case INVERSION_ON:
2719a0bf528SMauro Carvalho Chehab if (!state->config->invert)
2729a0bf528SMauro Carvalho Chehab invval = 0x40;
2739a0bf528SMauro Carvalho Chehab break;
2749a0bf528SMauro Carvalho Chehab case INVERSION_AUTO:
2759a0bf528SMauro Carvalho Chehab invval = 0x00;
2769a0bf528SMauro Carvalho Chehab break;
2779a0bf528SMauro Carvalho Chehab }
2789a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x0c, 0xc0, invval);
2799a0bf528SMauro Carvalho Chehab
2809a0bf528SMauro Carvalho Chehab return 0;
2819a0bf528SMauro Carvalho Chehab }
2829a0bf528SMauro Carvalho Chehab
tda10086_set_symbol_rate(struct tda10086_state * state,struct dtv_frontend_properties * fe_params)2839a0bf528SMauro Carvalho Chehab static int tda10086_set_symbol_rate(struct tda10086_state *state,
2849a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *fe_params)
2859a0bf528SMauro Carvalho Chehab {
2869a0bf528SMauro Carvalho Chehab u8 dfn = 0;
2879a0bf528SMauro Carvalho Chehab u8 afs = 0;
2889a0bf528SMauro Carvalho Chehab u8 byp = 0;
2899a0bf528SMauro Carvalho Chehab u8 reg37 = 0x43;
2909a0bf528SMauro Carvalho Chehab u8 reg42 = 0x43;
2919a0bf528SMauro Carvalho Chehab u64 big;
2929a0bf528SMauro Carvalho Chehab u32 tmp;
2939a0bf528SMauro Carvalho Chehab u32 bdr;
2949a0bf528SMauro Carvalho Chehab u32 bdri;
2959a0bf528SMauro Carvalho Chehab u32 symbol_rate = fe_params->symbol_rate;
2969a0bf528SMauro Carvalho Chehab
2979a0bf528SMauro Carvalho Chehab dprintk ("%s %i\n", __func__, symbol_rate);
2989a0bf528SMauro Carvalho Chehab
2999a0bf528SMauro Carvalho Chehab /* setup the decimation and anti-aliasing filters.. */
300ddc11db2SMauro Carvalho Chehab if (symbol_rate < SACLK / 10000 * 137) {
3019a0bf528SMauro Carvalho Chehab dfn=4;
3029a0bf528SMauro Carvalho Chehab afs=1;
303ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 208) {
3049a0bf528SMauro Carvalho Chehab dfn=4;
3059a0bf528SMauro Carvalho Chehab afs=0;
306ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 270) {
3079a0bf528SMauro Carvalho Chehab dfn=3;
3089a0bf528SMauro Carvalho Chehab afs=1;
309ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 416) {
3109a0bf528SMauro Carvalho Chehab dfn=3;
3119a0bf528SMauro Carvalho Chehab afs=0;
312ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 550) {
3139a0bf528SMauro Carvalho Chehab dfn=2;
3149a0bf528SMauro Carvalho Chehab afs=1;
315ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 833) {
3169a0bf528SMauro Carvalho Chehab dfn=2;
3179a0bf528SMauro Carvalho Chehab afs=0;
318ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 1100) {
3199a0bf528SMauro Carvalho Chehab dfn=1;
3209a0bf528SMauro Carvalho Chehab afs=1;
321ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 1666) {
3229a0bf528SMauro Carvalho Chehab dfn=1;
3239a0bf528SMauro Carvalho Chehab afs=0;
324ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 2200) {
3259a0bf528SMauro Carvalho Chehab dfn=0;
3269a0bf528SMauro Carvalho Chehab afs=1;
327ddc11db2SMauro Carvalho Chehab } else if (symbol_rate < SACLK / 10000 * 3333) {
3289a0bf528SMauro Carvalho Chehab dfn=0;
3299a0bf528SMauro Carvalho Chehab afs=0;
3309a0bf528SMauro Carvalho Chehab } else {
3319a0bf528SMauro Carvalho Chehab reg37 = 0x63;
3329a0bf528SMauro Carvalho Chehab reg42 = 0x4f;
3339a0bf528SMauro Carvalho Chehab byp=1;
3349a0bf528SMauro Carvalho Chehab }
3359a0bf528SMauro Carvalho Chehab
3369a0bf528SMauro Carvalho Chehab /* calculate BDR */
3379a0bf528SMauro Carvalho Chehab big = (1ULL<<21) * ((u64) symbol_rate/1000ULL) * (1ULL<<dfn);
3389a0bf528SMauro Carvalho Chehab big += ((SACLK/1000ULL)-1ULL);
3399a0bf528SMauro Carvalho Chehab do_div(big, (SACLK/1000ULL));
3409a0bf528SMauro Carvalho Chehab bdr = big & 0xfffff;
3419a0bf528SMauro Carvalho Chehab
3429a0bf528SMauro Carvalho Chehab /* calculate BDRI */
3439a0bf528SMauro Carvalho Chehab tmp = (1<<dfn)*(symbol_rate/1000);
3449a0bf528SMauro Carvalho Chehab bdri = ((32 * (SACLK/1000)) + (tmp-1)) / tmp;
3459a0bf528SMauro Carvalho Chehab
3469a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x21, (afs << 7) | dfn);
3479a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x20, 0x08, byp << 3);
3489a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x06, bdr);
3499a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x07, bdr >> 8);
3509a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x08, bdr >> 16);
3519a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x09, bdri);
3529a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x37, reg37);
3539a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x42, reg42);
3549a0bf528SMauro Carvalho Chehab
3559a0bf528SMauro Carvalho Chehab return 0;
3569a0bf528SMauro Carvalho Chehab }
3579a0bf528SMauro Carvalho Chehab
tda10086_set_fec(struct tda10086_state * state,struct dtv_frontend_properties * fe_params)3589a0bf528SMauro Carvalho Chehab static int tda10086_set_fec(struct tda10086_state *state,
3599a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *fe_params)
3609a0bf528SMauro Carvalho Chehab {
3619a0bf528SMauro Carvalho Chehab u8 fecval;
3629a0bf528SMauro Carvalho Chehab
3639a0bf528SMauro Carvalho Chehab dprintk("%s %i\n", __func__, fe_params->fec_inner);
3649a0bf528SMauro Carvalho Chehab
3659a0bf528SMauro Carvalho Chehab switch (fe_params->fec_inner) {
3669a0bf528SMauro Carvalho Chehab case FEC_1_2:
3679a0bf528SMauro Carvalho Chehab fecval = 0x00;
3689a0bf528SMauro Carvalho Chehab break;
3699a0bf528SMauro Carvalho Chehab case FEC_2_3:
3709a0bf528SMauro Carvalho Chehab fecval = 0x01;
3719a0bf528SMauro Carvalho Chehab break;
3729a0bf528SMauro Carvalho Chehab case FEC_3_4:
3739a0bf528SMauro Carvalho Chehab fecval = 0x02;
3749a0bf528SMauro Carvalho Chehab break;
3759a0bf528SMauro Carvalho Chehab case FEC_4_5:
3769a0bf528SMauro Carvalho Chehab fecval = 0x03;
3779a0bf528SMauro Carvalho Chehab break;
3789a0bf528SMauro Carvalho Chehab case FEC_5_6:
3799a0bf528SMauro Carvalho Chehab fecval = 0x04;
3809a0bf528SMauro Carvalho Chehab break;
3819a0bf528SMauro Carvalho Chehab case FEC_6_7:
3829a0bf528SMauro Carvalho Chehab fecval = 0x05;
3839a0bf528SMauro Carvalho Chehab break;
3849a0bf528SMauro Carvalho Chehab case FEC_7_8:
3859a0bf528SMauro Carvalho Chehab fecval = 0x06;
3869a0bf528SMauro Carvalho Chehab break;
3879a0bf528SMauro Carvalho Chehab case FEC_8_9:
3889a0bf528SMauro Carvalho Chehab fecval = 0x07;
3899a0bf528SMauro Carvalho Chehab break;
3909a0bf528SMauro Carvalho Chehab case FEC_AUTO:
3919a0bf528SMauro Carvalho Chehab fecval = 0x08;
3929a0bf528SMauro Carvalho Chehab break;
3939a0bf528SMauro Carvalho Chehab default:
3949a0bf528SMauro Carvalho Chehab return -1;
3959a0bf528SMauro Carvalho Chehab }
3969a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x0d, fecval);
3979a0bf528SMauro Carvalho Chehab
3989a0bf528SMauro Carvalho Chehab return 0;
3999a0bf528SMauro Carvalho Chehab }
4009a0bf528SMauro Carvalho Chehab
tda10086_set_frontend(struct dvb_frontend * fe)4019a0bf528SMauro Carvalho Chehab static int tda10086_set_frontend(struct dvb_frontend *fe)
4029a0bf528SMauro Carvalho Chehab {
4039a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *fe_params = &fe->dtv_property_cache;
4049a0bf528SMauro Carvalho Chehab struct tda10086_state *state = fe->demodulator_priv;
4059a0bf528SMauro Carvalho Chehab int ret;
4069a0bf528SMauro Carvalho Chehab u32 freq = 0;
4079a0bf528SMauro Carvalho Chehab int freqoff;
4089a0bf528SMauro Carvalho Chehab
4099a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
4109a0bf528SMauro Carvalho Chehab
4119a0bf528SMauro Carvalho Chehab /* modify parameters for tuning */
4129a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x02, 0x35);
4139a0bf528SMauro Carvalho Chehab state->has_lock = false;
4149a0bf528SMauro Carvalho Chehab
4159a0bf528SMauro Carvalho Chehab /* set params */
4169a0bf528SMauro Carvalho Chehab if (fe->ops.tuner_ops.set_params) {
4179a0bf528SMauro Carvalho Chehab fe->ops.tuner_ops.set_params(fe);
4189a0bf528SMauro Carvalho Chehab if (fe->ops.i2c_gate_ctrl)
4199a0bf528SMauro Carvalho Chehab fe->ops.i2c_gate_ctrl(fe, 0);
4209a0bf528SMauro Carvalho Chehab
4219a0bf528SMauro Carvalho Chehab if (fe->ops.tuner_ops.get_frequency)
4229a0bf528SMauro Carvalho Chehab fe->ops.tuner_ops.get_frequency(fe, &freq);
4239a0bf528SMauro Carvalho Chehab if (fe->ops.i2c_gate_ctrl)
4249a0bf528SMauro Carvalho Chehab fe->ops.i2c_gate_ctrl(fe, 0);
4259a0bf528SMauro Carvalho Chehab }
4269a0bf528SMauro Carvalho Chehab
427868c9a17SMauro Carvalho Chehab /* calculate the frequency offset (in *Hz* not kHz) */
4289a0bf528SMauro Carvalho Chehab freqoff = fe_params->frequency - freq;
4299a0bf528SMauro Carvalho Chehab freqoff = ((1<<16) * freqoff) / (SACLK/1000);
4309a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3d, 0x80 | ((freqoff >> 8) & 0x7f));
4319a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x3e, freqoff);
4329a0bf528SMauro Carvalho Chehab
4339a0bf528SMauro Carvalho Chehab if ((ret = tda10086_set_inversion(state, fe_params)) < 0)
4349a0bf528SMauro Carvalho Chehab return ret;
4359a0bf528SMauro Carvalho Chehab if ((ret = tda10086_set_symbol_rate(state, fe_params)) < 0)
4369a0bf528SMauro Carvalho Chehab return ret;
4379a0bf528SMauro Carvalho Chehab if ((ret = tda10086_set_fec(state, fe_params)) < 0)
4389a0bf528SMauro Carvalho Chehab return ret;
4399a0bf528SMauro Carvalho Chehab
4409a0bf528SMauro Carvalho Chehab /* soft reset + disable TS output until lock */
4419a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x10, 0x40, 0x40);
4429a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x00, 0x01, 0x00);
4439a0bf528SMauro Carvalho Chehab
4449a0bf528SMauro Carvalho Chehab state->symbol_rate = fe_params->symbol_rate;
4459a0bf528SMauro Carvalho Chehab state->frequency = fe_params->frequency;
4469a0bf528SMauro Carvalho Chehab return 0;
4479a0bf528SMauro Carvalho Chehab }
4489a0bf528SMauro Carvalho Chehab
tda10086_get_frontend(struct dvb_frontend * fe,struct dtv_frontend_properties * fe_params)4497e3e68bcSMauro Carvalho Chehab static int tda10086_get_frontend(struct dvb_frontend *fe,
4507e3e68bcSMauro Carvalho Chehab struct dtv_frontend_properties *fe_params)
4519a0bf528SMauro Carvalho Chehab {
4529a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
4539a0bf528SMauro Carvalho Chehab u8 val;
4549a0bf528SMauro Carvalho Chehab int tmp;
4559a0bf528SMauro Carvalho Chehab u64 tmp64;
4569a0bf528SMauro Carvalho Chehab
4579a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
4589a0bf528SMauro Carvalho Chehab
4599a0bf528SMauro Carvalho Chehab /* check for invalid symbol rate */
4609a0bf528SMauro Carvalho Chehab if (fe_params->symbol_rate < 500000)
4619a0bf528SMauro Carvalho Chehab return -EINVAL;
4629a0bf528SMauro Carvalho Chehab
4639a0bf528SMauro Carvalho Chehab /* calculate the updated frequency (note: we convert from Hz->kHz) */
464b674ac29SMauro Carvalho Chehab tmp64 = ((u64)tda10086_read_byte(state, 0x52)
465b674ac29SMauro Carvalho Chehab | (tda10086_read_byte(state, 0x51) << 8));
4669a0bf528SMauro Carvalho Chehab if (tmp64 & 0x8000)
4679a0bf528SMauro Carvalho Chehab tmp64 |= 0xffffffffffff0000ULL;
4689a0bf528SMauro Carvalho Chehab tmp64 = (tmp64 * (SACLK/1000ULL));
4699a0bf528SMauro Carvalho Chehab do_div(tmp64, (1ULL<<15) * (1ULL<<1));
4709a0bf528SMauro Carvalho Chehab fe_params->frequency = (int) state->frequency + (int) tmp64;
4719a0bf528SMauro Carvalho Chehab
4729a0bf528SMauro Carvalho Chehab /* the inversion */
4739a0bf528SMauro Carvalho Chehab val = tda10086_read_byte(state, 0x0c);
4749a0bf528SMauro Carvalho Chehab if (val & 0x80) {
4759a0bf528SMauro Carvalho Chehab switch(val & 0x40) {
4769a0bf528SMauro Carvalho Chehab case 0x00:
4779a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_OFF;
4789a0bf528SMauro Carvalho Chehab if (state->config->invert)
4799a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_ON;
4809a0bf528SMauro Carvalho Chehab break;
4819a0bf528SMauro Carvalho Chehab default:
4829a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_ON;
4839a0bf528SMauro Carvalho Chehab if (state->config->invert)
4849a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_OFF;
4859a0bf528SMauro Carvalho Chehab break;
4869a0bf528SMauro Carvalho Chehab }
4879a0bf528SMauro Carvalho Chehab } else {
4889a0bf528SMauro Carvalho Chehab tda10086_read_byte(state, 0x0f);
4899a0bf528SMauro Carvalho Chehab switch(val & 0x02) {
4909a0bf528SMauro Carvalho Chehab case 0x00:
4919a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_OFF;
4929a0bf528SMauro Carvalho Chehab if (state->config->invert)
4939a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_ON;
4949a0bf528SMauro Carvalho Chehab break;
4959a0bf528SMauro Carvalho Chehab default:
4969a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_ON;
4979a0bf528SMauro Carvalho Chehab if (state->config->invert)
4989a0bf528SMauro Carvalho Chehab fe_params->inversion = INVERSION_OFF;
4999a0bf528SMauro Carvalho Chehab break;
5009a0bf528SMauro Carvalho Chehab }
5019a0bf528SMauro Carvalho Chehab }
5029a0bf528SMauro Carvalho Chehab
5039a0bf528SMauro Carvalho Chehab /* calculate the updated symbol rate */
5049a0bf528SMauro Carvalho Chehab tmp = tda10086_read_byte(state, 0x1d);
5059a0bf528SMauro Carvalho Chehab if (tmp & 0x80)
5069a0bf528SMauro Carvalho Chehab tmp |= 0xffffff00;
5079a0bf528SMauro Carvalho Chehab tmp = (tmp * 480 * (1<<1)) / 128;
5089a0bf528SMauro Carvalho Chehab tmp = ((state->symbol_rate/1000) * tmp) / (1000000/1000);
5099a0bf528SMauro Carvalho Chehab fe_params->symbol_rate = state->symbol_rate + tmp;
5109a0bf528SMauro Carvalho Chehab
5119a0bf528SMauro Carvalho Chehab /* the FEC */
5129a0bf528SMauro Carvalho Chehab val = (tda10086_read_byte(state, 0x0d) & 0x70) >> 4;
5139a0bf528SMauro Carvalho Chehab switch(val) {
5149a0bf528SMauro Carvalho Chehab case 0x00:
5159a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_1_2;
5169a0bf528SMauro Carvalho Chehab break;
5179a0bf528SMauro Carvalho Chehab case 0x01:
5189a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_2_3;
5199a0bf528SMauro Carvalho Chehab break;
5209a0bf528SMauro Carvalho Chehab case 0x02:
5219a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_3_4;
5229a0bf528SMauro Carvalho Chehab break;
5239a0bf528SMauro Carvalho Chehab case 0x03:
5249a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_4_5;
5259a0bf528SMauro Carvalho Chehab break;
5269a0bf528SMauro Carvalho Chehab case 0x04:
5279a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_5_6;
5289a0bf528SMauro Carvalho Chehab break;
5299a0bf528SMauro Carvalho Chehab case 0x05:
5309a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_6_7;
5319a0bf528SMauro Carvalho Chehab break;
5329a0bf528SMauro Carvalho Chehab case 0x06:
5339a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_7_8;
5349a0bf528SMauro Carvalho Chehab break;
5359a0bf528SMauro Carvalho Chehab case 0x07:
5369a0bf528SMauro Carvalho Chehab fe_params->fec_inner = FEC_8_9;
5379a0bf528SMauro Carvalho Chehab break;
5389a0bf528SMauro Carvalho Chehab }
5399a0bf528SMauro Carvalho Chehab
5409a0bf528SMauro Carvalho Chehab return 0;
5419a0bf528SMauro Carvalho Chehab }
5429a0bf528SMauro Carvalho Chehab
tda10086_read_status(struct dvb_frontend * fe,enum fe_status * fe_status)5430df289a2SMauro Carvalho Chehab static int tda10086_read_status(struct dvb_frontend *fe,
5440df289a2SMauro Carvalho Chehab enum fe_status *fe_status)
5459a0bf528SMauro Carvalho Chehab {
5469a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
5479a0bf528SMauro Carvalho Chehab u8 val;
5489a0bf528SMauro Carvalho Chehab
5499a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
5509a0bf528SMauro Carvalho Chehab
5519a0bf528SMauro Carvalho Chehab val = tda10086_read_byte(state, 0x0e);
5529a0bf528SMauro Carvalho Chehab *fe_status = 0;
5539a0bf528SMauro Carvalho Chehab if (val & 0x01)
5549a0bf528SMauro Carvalho Chehab *fe_status |= FE_HAS_SIGNAL;
5559a0bf528SMauro Carvalho Chehab if (val & 0x02)
5569a0bf528SMauro Carvalho Chehab *fe_status |= FE_HAS_CARRIER;
5579a0bf528SMauro Carvalho Chehab if (val & 0x04)
5589a0bf528SMauro Carvalho Chehab *fe_status |= FE_HAS_VITERBI;
5599a0bf528SMauro Carvalho Chehab if (val & 0x08)
5609a0bf528SMauro Carvalho Chehab *fe_status |= FE_HAS_SYNC;
5619a0bf528SMauro Carvalho Chehab if (val & 0x10) {
5629a0bf528SMauro Carvalho Chehab *fe_status |= FE_HAS_LOCK;
5639a0bf528SMauro Carvalho Chehab if (!state->has_lock) {
5649a0bf528SMauro Carvalho Chehab state->has_lock = true;
5659a0bf528SMauro Carvalho Chehab /* modify parameters for stable reception */
5669a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x02, 0x00);
5679a0bf528SMauro Carvalho Chehab }
5689a0bf528SMauro Carvalho Chehab }
5699a0bf528SMauro Carvalho Chehab
5709a0bf528SMauro Carvalho Chehab return 0;
5719a0bf528SMauro Carvalho Chehab }
5729a0bf528SMauro Carvalho Chehab
tda10086_read_signal_strength(struct dvb_frontend * fe,u16 * signal)5739a0bf528SMauro Carvalho Chehab static int tda10086_read_signal_strength(struct dvb_frontend* fe, u16 * signal)
5749a0bf528SMauro Carvalho Chehab {
5759a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
5769a0bf528SMauro Carvalho Chehab u8 _str;
5779a0bf528SMauro Carvalho Chehab
5789a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
5799a0bf528SMauro Carvalho Chehab
5809a0bf528SMauro Carvalho Chehab _str = 0xff - tda10086_read_byte(state, 0x43);
5819a0bf528SMauro Carvalho Chehab *signal = (_str << 8) | _str;
5829a0bf528SMauro Carvalho Chehab
5839a0bf528SMauro Carvalho Chehab return 0;
5849a0bf528SMauro Carvalho Chehab }
5859a0bf528SMauro Carvalho Chehab
tda10086_read_snr(struct dvb_frontend * fe,u16 * snr)5869a0bf528SMauro Carvalho Chehab static int tda10086_read_snr(struct dvb_frontend* fe, u16 * snr)
5879a0bf528SMauro Carvalho Chehab {
5889a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
5899a0bf528SMauro Carvalho Chehab u8 _snr;
5909a0bf528SMauro Carvalho Chehab
5919a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
5929a0bf528SMauro Carvalho Chehab
5939a0bf528SMauro Carvalho Chehab _snr = 0xff - tda10086_read_byte(state, 0x1c);
5949a0bf528SMauro Carvalho Chehab *snr = (_snr << 8) | _snr;
5959a0bf528SMauro Carvalho Chehab
5969a0bf528SMauro Carvalho Chehab return 0;
5979a0bf528SMauro Carvalho Chehab }
5989a0bf528SMauro Carvalho Chehab
tda10086_read_ucblocks(struct dvb_frontend * fe,u32 * ucblocks)5999a0bf528SMauro Carvalho Chehab static int tda10086_read_ucblocks(struct dvb_frontend* fe, u32* ucblocks)
6009a0bf528SMauro Carvalho Chehab {
6019a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
6029a0bf528SMauro Carvalho Chehab
6039a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
6049a0bf528SMauro Carvalho Chehab
6059a0bf528SMauro Carvalho Chehab /* read it */
6069a0bf528SMauro Carvalho Chehab *ucblocks = tda10086_read_byte(state, 0x18) & 0x7f;
6079a0bf528SMauro Carvalho Chehab
6089a0bf528SMauro Carvalho Chehab /* reset counter */
6099a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x18, 0x00);
6109a0bf528SMauro Carvalho Chehab tda10086_write_byte(state, 0x18, 0x80);
6119a0bf528SMauro Carvalho Chehab
6129a0bf528SMauro Carvalho Chehab return 0;
6139a0bf528SMauro Carvalho Chehab }
6149a0bf528SMauro Carvalho Chehab
tda10086_read_ber(struct dvb_frontend * fe,u32 * ber)6159a0bf528SMauro Carvalho Chehab static int tda10086_read_ber(struct dvb_frontend* fe, u32* ber)
6169a0bf528SMauro Carvalho Chehab {
6179a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
6189a0bf528SMauro Carvalho Chehab
6199a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
6209a0bf528SMauro Carvalho Chehab
6219a0bf528SMauro Carvalho Chehab /* read it */
6229a0bf528SMauro Carvalho Chehab *ber = 0;
6239a0bf528SMauro Carvalho Chehab *ber |= tda10086_read_byte(state, 0x15);
6249a0bf528SMauro Carvalho Chehab *ber |= tda10086_read_byte(state, 0x16) << 8;
6259a0bf528SMauro Carvalho Chehab *ber |= (tda10086_read_byte(state, 0x17) & 0xf) << 16;
6269a0bf528SMauro Carvalho Chehab
6279a0bf528SMauro Carvalho Chehab return 0;
6289a0bf528SMauro Carvalho Chehab }
6299a0bf528SMauro Carvalho Chehab
tda10086_sleep(struct dvb_frontend * fe)6309a0bf528SMauro Carvalho Chehab static int tda10086_sleep(struct dvb_frontend* fe)
6319a0bf528SMauro Carvalho Chehab {
6329a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
6339a0bf528SMauro Carvalho Chehab
6349a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
6359a0bf528SMauro Carvalho Chehab
6369a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x00, 0x08, 0x08);
6379a0bf528SMauro Carvalho Chehab
6389a0bf528SMauro Carvalho Chehab return 0;
6399a0bf528SMauro Carvalho Chehab }
6409a0bf528SMauro Carvalho Chehab
tda10086_i2c_gate_ctrl(struct dvb_frontend * fe,int enable)6419a0bf528SMauro Carvalho Chehab static int tda10086_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
6429a0bf528SMauro Carvalho Chehab {
6439a0bf528SMauro Carvalho Chehab struct tda10086_state* state = fe->demodulator_priv;
6449a0bf528SMauro Carvalho Chehab
6459a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
6469a0bf528SMauro Carvalho Chehab
6479a0bf528SMauro Carvalho Chehab if (enable) {
6489a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x00, 0x10, 0x10);
6499a0bf528SMauro Carvalho Chehab } else {
6509a0bf528SMauro Carvalho Chehab tda10086_write_mask(state, 0x00, 0x10, 0x00);
6519a0bf528SMauro Carvalho Chehab }
6529a0bf528SMauro Carvalho Chehab
6539a0bf528SMauro Carvalho Chehab return 0;
6549a0bf528SMauro Carvalho Chehab }
6559a0bf528SMauro Carvalho Chehab
tda10086_get_tune_settings(struct dvb_frontend * fe,struct dvb_frontend_tune_settings * fesettings)6569a0bf528SMauro Carvalho Chehab static int tda10086_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings* fesettings)
6579a0bf528SMauro Carvalho Chehab {
6589a0bf528SMauro Carvalho Chehab struct dtv_frontend_properties *p = &fe->dtv_property_cache;
6599a0bf528SMauro Carvalho Chehab
6609a0bf528SMauro Carvalho Chehab if (p->symbol_rate > 20000000) {
6619a0bf528SMauro Carvalho Chehab fesettings->min_delay_ms = 50;
6629a0bf528SMauro Carvalho Chehab fesettings->step_size = 2000;
6639a0bf528SMauro Carvalho Chehab fesettings->max_drift = 8000;
6649a0bf528SMauro Carvalho Chehab } else if (p->symbol_rate > 12000000) {
6659a0bf528SMauro Carvalho Chehab fesettings->min_delay_ms = 100;
6669a0bf528SMauro Carvalho Chehab fesettings->step_size = 1500;
6679a0bf528SMauro Carvalho Chehab fesettings->max_drift = 9000;
6689a0bf528SMauro Carvalho Chehab } else if (p->symbol_rate > 8000000) {
6699a0bf528SMauro Carvalho Chehab fesettings->min_delay_ms = 100;
6709a0bf528SMauro Carvalho Chehab fesettings->step_size = 1000;
6719a0bf528SMauro Carvalho Chehab fesettings->max_drift = 8000;
6729a0bf528SMauro Carvalho Chehab } else if (p->symbol_rate > 4000000) {
6739a0bf528SMauro Carvalho Chehab fesettings->min_delay_ms = 100;
6749a0bf528SMauro Carvalho Chehab fesettings->step_size = 500;
6759a0bf528SMauro Carvalho Chehab fesettings->max_drift = 7000;
6769a0bf528SMauro Carvalho Chehab } else if (p->symbol_rate > 2000000) {
6779a0bf528SMauro Carvalho Chehab fesettings->min_delay_ms = 200;
6789a0bf528SMauro Carvalho Chehab fesettings->step_size = p->symbol_rate / 8000;
6799a0bf528SMauro Carvalho Chehab fesettings->max_drift = 14 * fesettings->step_size;
6809a0bf528SMauro Carvalho Chehab } else {
6819a0bf528SMauro Carvalho Chehab fesettings->min_delay_ms = 200;
6829a0bf528SMauro Carvalho Chehab fesettings->step_size = p->symbol_rate / 8000;
6839a0bf528SMauro Carvalho Chehab fesettings->max_drift = 18 * fesettings->step_size;
6849a0bf528SMauro Carvalho Chehab }
6859a0bf528SMauro Carvalho Chehab
6869a0bf528SMauro Carvalho Chehab return 0;
6879a0bf528SMauro Carvalho Chehab }
6889a0bf528SMauro Carvalho Chehab
tda10086_release(struct dvb_frontend * fe)6899a0bf528SMauro Carvalho Chehab static void tda10086_release(struct dvb_frontend* fe)
6909a0bf528SMauro Carvalho Chehab {
6919a0bf528SMauro Carvalho Chehab struct tda10086_state *state = fe->demodulator_priv;
6929a0bf528SMauro Carvalho Chehab tda10086_sleep(fe);
6939a0bf528SMauro Carvalho Chehab kfree(state);
6949a0bf528SMauro Carvalho Chehab }
6959a0bf528SMauro Carvalho Chehab
696bd336e63SMax Kellermann static const struct dvb_frontend_ops tda10086_ops = {
6979a0bf528SMauro Carvalho Chehab .delsys = { SYS_DVBS },
6989a0bf528SMauro Carvalho Chehab .info = {
6999a0bf528SMauro Carvalho Chehab .name = "Philips TDA10086 DVB-S",
700f1b1eabfSMauro Carvalho Chehab .frequency_min_hz = 950 * MHz,
701f1b1eabfSMauro Carvalho Chehab .frequency_max_hz = 2150 * MHz,
702f1b1eabfSMauro Carvalho Chehab .frequency_stepsize_hz = 125 * kHz,
7039a0bf528SMauro Carvalho Chehab .symbol_rate_min = 1000000,
7049a0bf528SMauro Carvalho Chehab .symbol_rate_max = 45000000,
7059a0bf528SMauro Carvalho Chehab .caps = FE_CAN_INVERSION_AUTO |
7069a0bf528SMauro Carvalho Chehab FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 | FE_CAN_FEC_3_4 |
7079a0bf528SMauro Carvalho Chehab FE_CAN_FEC_5_6 | FE_CAN_FEC_6_7 | FE_CAN_FEC_7_8 | FE_CAN_FEC_AUTO |
7089a0bf528SMauro Carvalho Chehab FE_CAN_QPSK
7099a0bf528SMauro Carvalho Chehab },
7109a0bf528SMauro Carvalho Chehab
7119a0bf528SMauro Carvalho Chehab .release = tda10086_release,
7129a0bf528SMauro Carvalho Chehab
7139a0bf528SMauro Carvalho Chehab .init = tda10086_init,
7149a0bf528SMauro Carvalho Chehab .sleep = tda10086_sleep,
7159a0bf528SMauro Carvalho Chehab .i2c_gate_ctrl = tda10086_i2c_gate_ctrl,
7169a0bf528SMauro Carvalho Chehab
7179a0bf528SMauro Carvalho Chehab .set_frontend = tda10086_set_frontend,
7189a0bf528SMauro Carvalho Chehab .get_frontend = tda10086_get_frontend,
7199a0bf528SMauro Carvalho Chehab .get_tune_settings = tda10086_get_tune_settings,
7209a0bf528SMauro Carvalho Chehab
7219a0bf528SMauro Carvalho Chehab .read_status = tda10086_read_status,
7229a0bf528SMauro Carvalho Chehab .read_ber = tda10086_read_ber,
7239a0bf528SMauro Carvalho Chehab .read_signal_strength = tda10086_read_signal_strength,
7249a0bf528SMauro Carvalho Chehab .read_snr = tda10086_read_snr,
7259a0bf528SMauro Carvalho Chehab .read_ucblocks = tda10086_read_ucblocks,
7269a0bf528SMauro Carvalho Chehab
7279a0bf528SMauro Carvalho Chehab .diseqc_send_master_cmd = tda10086_send_master_cmd,
7289a0bf528SMauro Carvalho Chehab .diseqc_send_burst = tda10086_send_burst,
7299a0bf528SMauro Carvalho Chehab .set_tone = tda10086_set_tone,
7309a0bf528SMauro Carvalho Chehab };
7319a0bf528SMauro Carvalho Chehab
tda10086_attach(const struct tda10086_config * config,struct i2c_adapter * i2c)7329a0bf528SMauro Carvalho Chehab struct dvb_frontend* tda10086_attach(const struct tda10086_config* config,
7339a0bf528SMauro Carvalho Chehab struct i2c_adapter* i2c)
7349a0bf528SMauro Carvalho Chehab {
7359a0bf528SMauro Carvalho Chehab struct tda10086_state *state;
7369a0bf528SMauro Carvalho Chehab
7379a0bf528SMauro Carvalho Chehab dprintk ("%s\n", __func__);
7389a0bf528SMauro Carvalho Chehab
7399a0bf528SMauro Carvalho Chehab /* allocate memory for the internal state */
7409a0bf528SMauro Carvalho Chehab state = kzalloc(sizeof(struct tda10086_state), GFP_KERNEL);
7419a0bf528SMauro Carvalho Chehab if (!state)
7429a0bf528SMauro Carvalho Chehab return NULL;
7439a0bf528SMauro Carvalho Chehab
7449a0bf528SMauro Carvalho Chehab /* setup the state */
7459a0bf528SMauro Carvalho Chehab state->config = config;
7469a0bf528SMauro Carvalho Chehab state->i2c = i2c;
7479a0bf528SMauro Carvalho Chehab
7489a0bf528SMauro Carvalho Chehab /* check if the demod is there */
7499a0bf528SMauro Carvalho Chehab if (tda10086_read_byte(state, 0x1e) != 0xe1) {
7509a0bf528SMauro Carvalho Chehab kfree(state);
7519a0bf528SMauro Carvalho Chehab return NULL;
7529a0bf528SMauro Carvalho Chehab }
7539a0bf528SMauro Carvalho Chehab
7549a0bf528SMauro Carvalho Chehab /* create dvb_frontend */
7559a0bf528SMauro Carvalho Chehab memcpy(&state->frontend.ops, &tda10086_ops, sizeof(struct dvb_frontend_ops));
7569a0bf528SMauro Carvalho Chehab state->frontend.demodulator_priv = state;
7579a0bf528SMauro Carvalho Chehab return &state->frontend;
7589a0bf528SMauro Carvalho Chehab }
7599a0bf528SMauro Carvalho Chehab
7609a0bf528SMauro Carvalho Chehab module_param(debug, int, 0644);
7619a0bf528SMauro Carvalho Chehab MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
7629a0bf528SMauro Carvalho Chehab
7639a0bf528SMauro Carvalho Chehab MODULE_DESCRIPTION("Philips TDA10086 DVB-S Demodulator");
7649a0bf528SMauro Carvalho Chehab MODULE_AUTHOR("Andrew de Quincey");
7659a0bf528SMauro Carvalho Chehab MODULE_LICENSE("GPL");
7669a0bf528SMauro Carvalho Chehab
767*86495af1SGreg Kroah-Hartman EXPORT_SYMBOL_GPL(tda10086_attach);
768