2 Frontend-driver for TwinHan DST Frontend
4 Copyright (C) 2003 Jamie Honan
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
23 #include <linux/kernel.h>
24 #include <linux/module.h>
25 #include <linux/init.h>
26 #include <linux/string.h>
27 #include <linux/slab.h>
28 #include <linux/vmalloc.h>
29 #include <linux/delay.h>
30 #include <asm/div64.h>
32 #include "dvb_frontend.h"
38 struct i2c_adapter* i2c;
42 struct dvb_frontend_ops ops;
44 /* configuration settings */
45 const struct dst_config* config;
47 struct dvb_frontend frontend;
49 /* private demodulator data */
56 u32 frequency; /* intermediate frequency in kHz for QPSK */
57 fe_spectral_inversion_t inversion;
58 u32 symbol_rate; /* symbol rate in Symbols per second */
60 fe_sec_voltage_t voltage;
61 fe_sec_tone_mode_t tone;
66 unsigned long cur_jiff;
68 fe_bandwidth_t bandwidth;
71 static unsigned int dst_verbose = 0;
72 module_param(dst_verbose, int, 0644);
73 MODULE_PARM_DESC(dst_verbose, "verbose startup messages, default is 1 (yes)");
74 static unsigned int dst_debug = 0;
75 module_param(dst_debug, int, 0644);
76 MODULE_PARM_DESC(dst_debug, "debug messages, default is 0 (no)");
78 #define dprintk if (dst_debug) printk
80 #define DST_TYPE_IS_SAT 0
81 #define DST_TYPE_IS_TERR 1
82 #define DST_TYPE_IS_CABLE 2
84 #define DST_TYPE_HAS_NEWTUNE 1
85 #define DST_TYPE_HAS_TS204 2
86 #define DST_TYPE_HAS_SYMDIV 4
89 #define ATTEMPT_TUNE 2
92 static void dst_packsize(struct dst_state* state, int psize)
94 union dst_gpio_packet bits;
97 bt878_device_control(state->bt, DST_IG_TS, &bits);
100 static int dst_gpio_outb(struct dst_state* state, u32 mask, u32 enbb, u32 outhigh)
102 union dst_gpio_packet enb;
103 union dst_gpio_packet bits;
107 enb.enb.enable = enbb;
108 if ((err = bt878_device_control(state->bt, DST_IG_ENABLE, &enb)) < 0) {
109 dprintk("%s: dst_gpio_enb error (err == %i, mask == 0x%02x, enb == 0x%02x)\n", __FUNCTION__, err, mask, enbb);
113 /* because complete disabling means no output, no need to do output packet */
117 bits.outp.mask = enbb;
118 bits.outp.highvals = outhigh;
120 if ((err = bt878_device_control(state->bt, DST_IG_WRITE, &bits)) < 0) {
121 dprintk("%s: dst_gpio_outb error (err == %i, enbb == 0x%02x, outhigh == 0x%02x)\n", __FUNCTION__, err, enbb, outhigh);
127 static int dst_gpio_inb(struct dst_state *state, u8 * result)
129 union dst_gpio_packet rd_packet;
134 if ((err = bt878_device_control(state->bt, DST_IG_READ, &rd_packet)) < 0) {
135 dprintk("%s: dst_gpio_inb error (err == %i)\n", __FUNCTION__, err);
139 *result = (u8) rd_packet.rd.value;
143 #define DST_I2C_ENABLE 1
146 static int dst_reset8820(struct dst_state *state)
149 /* pull 8820 gpio pin low, wait, high, wait, then low */
150 // dprintk ("%s: reset 8820\n", __FUNCTION__);
151 retval = dst_gpio_outb(state, DST_8820, DST_8820, 0);
155 retval = dst_gpio_outb(state, DST_8820, DST_8820, DST_8820);
158 /* wait for more feedback on what works here *
160 retval = dst_gpio_outb(dst, DST_8820, DST_8820, 0);
167 static int dst_i2c_enable(struct dst_state *state)
170 /* pull I2C enable gpio pin low, wait */
171 // dprintk ("%s: i2c enable\n", __FUNCTION__);
172 retval = dst_gpio_outb(state, ~0, DST_I2C_ENABLE, 0);
175 // dprintk ("%s: i2c enable delay\n", __FUNCTION__);
180 static int dst_i2c_disable(struct dst_state *state)
183 /* release I2C enable gpio pin, wait */
184 // dprintk ("%s: i2c disable\n", __FUNCTION__);
185 retval = dst_gpio_outb(state, ~0, 0, 0);
188 // dprintk ("%s: i2c disable delay\n", __FUNCTION__);
193 static int dst_wait_dst_ready(struct dst_state *state)
198 for (i = 0; i < 200; i++) {
199 retval = dst_gpio_inb(state, &reply);
202 if ((reply & DST_I2C_ENABLE) == 0) {
203 dprintk("%s: dst wait ready after %d\n", __FUNCTION__, i);
208 dprintk("%s: dst wait NOT ready after %d\n", __FUNCTION__, i);
212 static int write_dst(struct dst_state *state, u8 * data, u8 len)
214 struct i2c_msg msg = {
215 .addr = state->config->demod_address,.flags = 0,.buf = data,.len = len
220 if (dst_debug && dst_verbose) {
222 dprintk("%s writing", __FUNCTION__);
223 for (i = 0; i < len; i++) {
224 dprintk(" 0x%02x", data[i]);
229 for (cnt = 0; cnt < 4; cnt++) {
230 if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
231 dprintk("%s: write_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, data[0]);
232 dst_i2c_disable(state);
234 dst_i2c_enable(state);
245 static int read_dst(struct dst_state *state, u8 * ret, u8 len)
247 struct i2c_msg msg = {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = ret,.len = len };
251 for (cnt = 0; cnt < 4; cnt++) {
252 if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
253 dprintk("%s: read_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, ret[0]);
254 dst_i2c_disable(state);
255 dst_i2c_enable(state);
262 dprintk("%s reply is 0x%x\n", __FUNCTION__, ret[0]);
263 if (dst_debug && dst_verbose) {
264 for (err = 1; err < len; err++)
265 dprintk(" 0x%x", ret[err]);
272 static int dst_set_freq(struct dst_state *state, u32 freq)
276 state->frequency = freq;
278 // dprintk("%s: set frequency %u\n", __FUNCTION__, freq);
279 if (state->dst_type == DST_TYPE_IS_SAT) {
281 if (freq < 950 || freq > 2150)
283 val = &state->tx_tuna[0];
284 val[2] = (freq >> 8) & 0x7f;
290 } else if (state->dst_type == DST_TYPE_IS_TERR) {
292 if (freq < 137000 || freq > 858000)
294 val = &state->tx_tuna[0];
295 val[2] = (freq >> 16) & 0xff;
296 val[3] = (freq >> 8) & 0xff;
299 switch (state->bandwidth) {
300 case BANDWIDTH_6_MHZ:
304 case BANDWIDTH_7_MHZ:
309 case BANDWIDTH_8_MHZ:
316 } else if (state->dst_type == DST_TYPE_IS_CABLE) {
317 /* guess till will get one */
319 val = &state->tx_tuna[0];
320 val[2] = (freq >> 16) & 0xff;
321 val[3] = (freq >> 8) & 0xff;
328 static int dst_set_bandwidth(struct dst_state* state, fe_bandwidth_t bandwidth)
332 state->bandwidth = bandwidth;
334 if (state->dst_type != DST_TYPE_IS_TERR)
337 val = &state->tx_tuna[0];
339 case BANDWIDTH_6_MHZ:
343 case BANDWIDTH_7_MHZ:
347 case BANDWIDTH_8_MHZ:
357 static int dst_set_inversion(struct dst_state* state, fe_spectral_inversion_t inversion)
361 state->inversion = inversion;
363 val = &state->tx_tuna[0];
379 static int dst_set_fec(struct dst_state* state, fe_code_rate_t fec)
385 static fe_code_rate_t dst_get_fec(struct dst_state* state)
390 static int dst_set_symbolrate(struct dst_state* state, u32 srate)
396 state->symbol_rate = srate;
398 if (state->dst_type == DST_TYPE_IS_TERR) {
401 // dprintk("%s: set srate %u\n", __FUNCTION__, srate);
403 val = &state->tx_tuna[0];
405 if (state->type_flags & DST_TYPE_HAS_SYMDIV) {
409 symcalc = (u32) sval;
410 // dprintk("%s: set symcalc %u\n", __FUNCTION__, symcalc);
411 val[5] = (u8) (symcalc >> 12);
412 val[6] = (u8) (symcalc >> 4);
413 val[7] = (u8) (symcalc << 4);
415 val[5] = (u8) (srate >> 16) & 0x7f;
416 val[6] = (u8) (srate >> 8);
425 static u8 dst_check_sum(u8 * buf, u32 len)
431 for (i = 0; i < len; i++) {
444 static struct dst_types dst_tlist[] = {
445 {"DST-020", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
446 {"DST-030", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
447 {"DST-03T", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_TS204},
448 {"DST-MOT", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
449 {"DST-CI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
450 {"DSTMCI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
451 {"DSTFCI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
452 {"DCTNEW", 1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE},
453 {"DCT-CI", 1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE | DST_TYPE_HAS_TS204},
454 {"DTTDIG", 1, DST_TYPE_IS_TERR, 0}
457 /* DCTNEW and DCT-CI are guesses */
459 static void dst_type_flags_print(u32 type_flags)
461 printk("DST type flags :");
462 if (type_flags & DST_TYPE_HAS_NEWTUNE)
463 printk(" 0x%x newtuner", DST_TYPE_HAS_NEWTUNE);
464 if (type_flags & DST_TYPE_HAS_TS204)
465 printk(" 0x%x ts204", DST_TYPE_HAS_TS204);
466 if (type_flags & DST_TYPE_HAS_SYMDIV)
467 printk(" 0x%x symdiv", DST_TYPE_HAS_SYMDIV);
471 static int dst_type_print(u8 type)
475 case DST_TYPE_IS_SAT:
478 case DST_TYPE_IS_TERR:
479 otype = "terrestrial";
481 case DST_TYPE_IS_CABLE:
485 printk("%s: invalid dst type %d\n", __FUNCTION__, type);
488 printk("DST type : %s\n", otype);
492 static int dst_check_ci(struct dst_state *state)
498 struct dst_types *dsp;
502 memset(txbuf, 0, sizeof(txbuf));
504 txbuf[7] = dst_check_sum(txbuf, 7);
506 dst_i2c_enable(state);
507 dst_reset8820(state);
508 retval = write_dst(state, txbuf, 8);
510 dst_i2c_disable(state);
511 dprintk("%s: write not successful, maybe no card?\n", __FUNCTION__);
515 retval = read_dst(state, rxbuf, 1);
516 dst_i2c_disable(state);
518 dprintk("%s: read not successful, maybe no card?\n", __FUNCTION__);
521 if (rxbuf[0] != 0xff) {
522 dprintk("%s: write reply not 0xff, not ci (%02x)\n", __FUNCTION__, rxbuf[0]);
525 if (!dst_wait_dst_ready(state))
527 // dst_i2c_enable(i2c); Dimitri
528 retval = read_dst(state, rxbuf, 8);
529 dst_i2c_disable(state);
531 dprintk("%s: read not successful\n", __FUNCTION__);
534 if (rxbuf[7] != dst_check_sum(rxbuf, 7)) {
535 dprintk("%s: checksum failure\n", __FUNCTION__);
539 for (i = 0, dsp = &dst_tlist[0]; i < sizeof(dst_tlist) / sizeof(dst_tlist[0]); i++, dsp++) {
540 if (!strncmp(&rxbuf[dsp->offs], dsp->mstr, strlen(dsp->mstr))) {
541 use_type_flags = dsp->type_flags;
542 use_dst_type = dsp->dst_type;
543 printk("%s: recognize %s\n", __FUNCTION__, dsp->mstr);
547 if (i >= sizeof(dst_tlist) / sizeof(dst_tlist[0])) {
548 printk("%s: unable to recognize %s or %s\n", __FUNCTION__, &rxbuf[0], &rxbuf[1]);
549 printk("%s please email linux-dvb@linuxtv.org with this type in\n", __FUNCTION__);
550 use_dst_type = DST_TYPE_IS_SAT;
551 use_type_flags = DST_TYPE_HAS_SYMDIV;
553 dst_type_print(use_dst_type);
555 state->type_flags = use_type_flags;
556 state->dst_type = use_dst_type;
557 dst_type_flags_print(state->type_flags);
559 if (state->type_flags & DST_TYPE_HAS_TS204) {
560 dst_packsize(state, 204);
565 static int dst_command(struct dst_state* state, u8 * data, u8 len)
570 dst_i2c_enable(state);
571 dst_reset8820(state);
572 retval = write_dst(state, data, len);
574 dst_i2c_disable(state);
575 dprintk("%s: write not successful\n", __FUNCTION__);
579 retval = read_dst(state, &reply, 1);
580 dst_i2c_disable(state);
582 dprintk("%s: read verify not successful\n", __FUNCTION__);
586 dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
589 if (len >= 2 && data[0] == 0 && (data[1] == 1 || data[1] == 3))
591 if (!dst_wait_dst_ready(state))
593 // dst_i2c_enable(i2c); Per dimitri
594 retval = read_dst(state, state->rxbuffer, 8);
595 dst_i2c_disable(state);
597 dprintk("%s: read not successful\n", __FUNCTION__);
600 if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
601 dprintk("%s: checksum failure\n", __FUNCTION__);
607 static int dst_get_signal(struct dst_state* state)
610 u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
612 if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
613 state->decode_lock = state->decode_strength = state->decode_snr = 0;
616 if (0 == (state->diseq_flags & HAS_LOCK)) {
617 state->decode_lock = state->decode_strength = state->decode_snr = 0;
620 if (time_after_eq(jiffies, state->cur_jiff + (HZ / 5))) {
621 retval = dst_command(state, get_signal, 8);
624 if (state->dst_type == DST_TYPE_IS_SAT) {
625 state->decode_lock = ((state->rxbuffer[6] & 0x10) == 0) ? 1 : 0;
626 state->decode_strength = state->rxbuffer[5] << 8;
627 state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
628 } else if ((state->dst_type == DST_TYPE_IS_TERR) || (state->dst_type == DST_TYPE_IS_CABLE)) {
629 state->decode_lock = (state->rxbuffer[1]) ? 1 : 0;
630 state->decode_strength = state->rxbuffer[4] << 8;
631 state->decode_snr = state->rxbuffer[3] << 8;
633 state->cur_jiff = jiffies;
638 static int dst_tone_power_cmd(struct dst_state* state)
640 u8 paket[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 };
642 if (state->dst_type == DST_TYPE_IS_TERR)
645 if (state->voltage == SEC_VOLTAGE_OFF)
649 if (state->tone == SEC_TONE_ON)
650 paket[2] = state->k22;
653 paket[7] = dst_check_sum(&paket[0], 7);
654 dst_command(state, paket, 8);
658 static int dst_get_tuna(struct dst_state* state)
661 if ((state->diseq_flags & ATTEMPT_TUNE) == 0)
663 state->diseq_flags &= ~(HAS_LOCK);
664 if (!dst_wait_dst_ready(state))
666 if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
667 /* how to get variable length reply ???? */
668 retval = read_dst(state, state->rx_tuna, 10);
670 retval = read_dst(state, &state->rx_tuna[2], 8);
673 dprintk("%s: read not successful\n", __FUNCTION__);
676 if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
677 if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[0], 9)) {
678 dprintk("%s: checksum failure?\n", __FUNCTION__);
682 if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[2], 7)) {
683 dprintk("%s: checksum failure?\n", __FUNCTION__);
687 if (state->rx_tuna[2] == 0 && state->rx_tuna[3] == 0)
689 state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];
691 state->decode_lock = 1;
693 dst->decode_n1 = (dst->rx_tuna[4] << 8) +
696 dst->decode_n2 = (dst->rx_tuna[8] << 8) +
699 state->diseq_flags |= HAS_LOCK;
700 /* dst->cur_jiff = jiffies; */
704 static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
706 static int dst_write_tuna(struct dvb_frontend* fe)
708 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
712 dprintk("%s: type_flags 0x%x \n", __FUNCTION__, state->type_flags);
713 state->decode_freq = 0;
714 state->decode_lock = state->decode_strength = state->decode_snr = 0;
715 if (state->dst_type == DST_TYPE_IS_SAT) {
716 if (!(state->diseq_flags & HAS_POWER))
717 dst_set_voltage(fe, SEC_VOLTAGE_13);
719 state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
720 dst_i2c_enable(state);
721 if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
722 dst_reset8820(state);
723 state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
724 retval = write_dst(state, &state->tx_tuna[0], 10);
726 state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
727 retval = write_dst(state, &state->tx_tuna[2], 8);
730 dst_i2c_disable(state);
731 dprintk("%s: write not successful\n", __FUNCTION__);
735 retval = read_dst(state, &reply, 1);
736 dst_i2c_disable(state);
738 dprintk("%s: read verify not successful\n", __FUNCTION__);
742 dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
745 state->diseq_flags |= ATTEMPT_TUNE;
746 return dst_get_tuna(state);
750 * line22k0 0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
751 * line22k1 0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
752 * line22k2 0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
753 * tone 0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
754 * data 0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
755 * power_off 0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
756 * power_on 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
757 * Diseqc 1 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
758 * Diseqc 2 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
759 * Diseqc 3 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
760 * Diseqc 4 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
763 static int dst_set_diseqc(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
765 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
766 u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
768 if (state->dst_type == DST_TYPE_IS_TERR)
771 if (cmd->msg_len == 0 || cmd->msg_len > 4)
773 memcpy(&paket[3], cmd->msg, cmd->msg_len);
774 paket[7] = dst_check_sum(&paket[0], 7);
775 dst_command(state, paket, 8);
779 static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
783 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
785 state->voltage = voltage;
787 if (state->dst_type == DST_TYPE_IS_TERR)
791 val = &state->tx_tuna[0];
795 if ((state->diseq_flags & HAS_POWER) == 0)
797 state->diseq_flags |= HAS_POWER;
800 if ((state->diseq_flags & HAS_POWER) == 0)
802 state->diseq_flags |= HAS_POWER;
805 case SEC_VOLTAGE_OFF:
807 state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
813 dst_tone_power_cmd(state);
818 static int dst_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
821 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
825 if (state->dst_type == DST_TYPE_IS_TERR)
828 val = &state->tx_tuna[0];
841 dst_tone_power_cmd(state);
845 static int dst_init(struct dvb_frontend* fe)
847 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
848 static u8 ini_satci_tuna[] = { 9, 0, 3, 0xb6, 1, 0, 0x73, 0x21, 0, 0 };
849 static u8 ini_satfta_tuna[] = { 0, 0, 3, 0xb6, 1, 0x55, 0xbd, 0x50, 0, 0 };
850 static u8 ini_tvfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
851 static u8 ini_tvci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
852 static u8 ini_cabfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
853 static u8 ini_cabci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
854 state->inversion = INVERSION_ON;
855 state->voltage = SEC_VOLTAGE_13;
856 state->tone = SEC_TONE_OFF;
857 state->symbol_rate = 29473000;
858 state->fec = FEC_AUTO;
859 state->diseq_flags = 0;
861 state->bandwidth = BANDWIDTH_7_MHZ;
862 state->cur_jiff = jiffies;
863 if (state->dst_type == DST_TYPE_IS_SAT) {
864 state->frequency = 950000;
865 memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_satci_tuna : ini_satfta_tuna), sizeof(ini_satfta_tuna));
866 } else if (state->dst_type == DST_TYPE_IS_TERR) {
867 state->frequency = 137000000;
868 memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_tvci_tuna : ini_tvfta_tuna), sizeof(ini_tvfta_tuna));
869 } else if (state->dst_type == DST_TYPE_IS_CABLE) {
870 state->frequency = 51000000;
871 memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_cabci_tuna : ini_cabfta_tuna), sizeof(ini_cabfta_tuna));
877 static int dst_read_status(struct dvb_frontend* fe, fe_status_t* status)
879 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
882 if (state->diseq_flags & HAS_LOCK) {
883 dst_get_signal(state);
884 if (state->decode_lock)
885 *status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
891 static int dst_read_signal_strength(struct dvb_frontend* fe, u16* strength)
893 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
895 dst_get_signal(state);
896 *strength = state->decode_strength;
901 static int dst_read_snr(struct dvb_frontend* fe, u16* snr)
903 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
905 dst_get_signal(state);
906 *snr = state->decode_snr;
911 static int dst_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
913 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
915 dst_set_freq(state, p->frequency);
916 dst_set_inversion(state, p->inversion);
917 if (state->dst_type == DST_TYPE_IS_SAT) {
918 dst_set_fec(state, p->u.qpsk.fec_inner);
919 dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
920 } else if (state->dst_type == DST_TYPE_IS_TERR) {
921 dst_set_bandwidth(state, p->u.ofdm.bandwidth);
922 } else if (state->dst_type == DST_TYPE_IS_CABLE) {
923 dst_set_fec(state, p->u.qam.fec_inner);
924 dst_set_symbolrate(state, p->u.qam.symbol_rate);
931 static int dst_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
933 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
935 p->frequency = state->decode_freq;
936 p->inversion = state->inversion;
937 if (state->dst_type == DST_TYPE_IS_SAT) {
938 p->u.qpsk.symbol_rate = state->symbol_rate;
939 p->u.qpsk.fec_inner = dst_get_fec(state);
940 } else if (state->dst_type == DST_TYPE_IS_TERR) {
941 p->u.ofdm.bandwidth = state->bandwidth;
942 } else if (state->dst_type == DST_TYPE_IS_CABLE) {
943 p->u.qam.symbol_rate = state->symbol_rate;
944 p->u.qam.fec_inner = dst_get_fec(state);
945 p->u.qam.modulation = QAM_AUTO;
951 static void dst_release(struct dvb_frontend* fe)
953 struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
957 static struct dvb_frontend_ops dst_dvbt_ops;
958 static struct dvb_frontend_ops dst_dvbs_ops;
959 static struct dvb_frontend_ops dst_dvbc_ops;
961 struct dvb_frontend* dst_attach(const struct dst_config* config,
962 struct i2c_adapter* i2c,
965 struct dst_state* state = NULL;
967 /* allocate memory for the internal state */
968 state = (struct dst_state*) kmalloc(sizeof(struct dst_state), GFP_KERNEL);
969 if (state == NULL) goto error;
971 /* setup the state */
972 state->config = config;
976 /* check if the demod is there */
977 if (dst_check_ci(state) < 0) goto error;
979 /* determine settings based on type */
980 switch (state->dst_type) {
981 case DST_TYPE_IS_TERR:
982 memcpy(&state->ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
984 case DST_TYPE_IS_CABLE:
985 memcpy(&state->ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
987 case DST_TYPE_IS_SAT:
988 memcpy(&state->ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
991 printk("dst: unknown frontend type. please report to the LinuxTV.org DVB mailinglist.\n");
995 /* create dvb_frontend */
996 state->frontend.ops = &state->ops;
997 state->frontend.demodulator_priv = state;
998 return &state->frontend;
1001 if (state) kfree(state);
1005 static struct dvb_frontend_ops dst_dvbt_ops = {
1008 .name = "DST DVB-T",
1010 .frequency_min = 137000000,
1011 .frequency_max = 858000000,
1012 .frequency_stepsize = 166667,
1013 .caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
1016 .release = dst_release,
1020 .set_frontend = dst_set_frontend,
1021 .get_frontend = dst_get_frontend,
1023 .read_status = dst_read_status,
1024 .read_signal_strength = dst_read_signal_strength,
1025 .read_snr = dst_read_snr,
1028 static struct dvb_frontend_ops dst_dvbs_ops = {
1031 .name = "DST DVB-S",
1033 .frequency_min = 950000,
1034 .frequency_max = 2150000,
1035 .frequency_stepsize = 1000, /* kHz for QPSK frontends */
1036 .frequency_tolerance = 29500,
1037 .symbol_rate_min = 1000000,
1038 .symbol_rate_max = 45000000,
1039 /* . symbol_rate_tolerance = ???,*/
1040 .caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
1043 .release = dst_release,
1047 .set_frontend = dst_set_frontend,
1048 .get_frontend = dst_get_frontend,
1050 .read_status = dst_read_status,
1051 .read_signal_strength = dst_read_signal_strength,
1052 .read_snr = dst_read_snr,
1054 .diseqc_send_master_cmd = dst_set_diseqc,
1055 .set_voltage = dst_set_voltage,
1056 .set_tone = dst_set_tone,
1059 static struct dvb_frontend_ops dst_dvbc_ops = {
1062 .name = "DST DVB-C",
1064 .frequency_stepsize = 62500,
1065 .frequency_min = 51000000,
1066 .frequency_max = 858000000,
1067 .symbol_rate_min = 1000000,
1068 .symbol_rate_max = 45000000,
1069 /* . symbol_rate_tolerance = ???,*/
1070 .caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO
1073 .release = dst_release,
1077 .set_frontend = dst_set_frontend,
1078 .get_frontend = dst_get_frontend,
1080 .read_status = dst_read_status,
1081 .read_signal_strength = dst_read_signal_strength,
1082 .read_snr = dst_read_snr,
1085 MODULE_DESCRIPTION("DST DVB-S/T/C Combo Frontend driver");
1086 MODULE_AUTHOR("Jamie Honan");
1087 MODULE_LICENSE("GPL");
1089 EXPORT_SYMBOL(dst_attach);