--- /dev/null
+/*
+ Frontend-driver for TwinHan DST Frontend
+
+ Copyright (C) 2003 Jamie Honan
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <asm/div64.h>
+
+#include "dvb_frontend.h"
+#include "dst_priv.h"
+#include "dst.h"
+
+struct dst_state {
+
+ struct i2c_adapter* i2c;
+
+ struct bt878* bt;
+
+ struct dvb_frontend_ops ops;
+
+ /* configuration settings */
+ const struct dst_config* config;
+
+ struct dvb_frontend frontend;
+
+ /* private demodulator data */
+ u8 tx_tuna[10];
+ u8 rx_tuna[10];
+ u8 rxbuffer[10];
+ u8 diseq_flags;
+ u8 dst_type;
+ u32 type_flags;
+ u32 frequency; /* intermediate frequency in kHz for QPSK */
+ fe_spectral_inversion_t inversion;
+ u32 symbol_rate; /* symbol rate in Symbols per second */
+ fe_code_rate_t fec;
+ fe_sec_voltage_t voltage;
+ fe_sec_tone_mode_t tone;
+ u32 decode_freq;
+ u8 decode_lock;
+ u16 decode_strength;
+ u16 decode_snr;
+ unsigned long cur_jiff;
+ u8 k22;
+ fe_bandwidth_t bandwidth;
+};
+
+static unsigned int dst_verbose = 0;
+module_param(dst_verbose, int, 0644);
+MODULE_PARM_DESC(dst_verbose, "verbose startup messages, default is 1 (yes)");
+static unsigned int dst_debug = 0;
+module_param(dst_debug, int, 0644);
+MODULE_PARM_DESC(dst_debug, "debug messages, default is 0 (no)");
+
+#define dprintk if (dst_debug) printk
+
+#define DST_TYPE_IS_SAT 0
+#define DST_TYPE_IS_TERR 1
+#define DST_TYPE_IS_CABLE 2
+
+#define DST_TYPE_HAS_NEWTUNE 1
+#define DST_TYPE_HAS_TS204 2
+#define DST_TYPE_HAS_SYMDIV 4
+
+#define HAS_LOCK 1
+#define ATTEMPT_TUNE 2
+#define HAS_POWER 4
+
+static void dst_packsize(struct dst_state* state, int psize)
+{
+ union dst_gpio_packet bits;
+
+ bits.psize = psize;
+ bt878_device_control(state->bt, DST_IG_TS, &bits);
+}
+
+static int dst_gpio_outb(struct dst_state* state, u32 mask, u32 enbb, u32 outhigh)
+{
+ union dst_gpio_packet enb;
+ union dst_gpio_packet bits;
+ int err;
+
+ enb.enb.mask = mask;
+ enb.enb.enable = enbb;
+ if ((err = bt878_device_control(state->bt, DST_IG_ENABLE, &enb)) < 0) {
+ dprintk("%s: dst_gpio_enb error (err == %i, mask == 0x%02x, enb == 0x%02x)\n", __FUNCTION__, err, mask, enbb);
+ return -EREMOTEIO;
+ }
+
+ /* because complete disabling means no output, no need to do output packet */
+ if (enbb == 0)
+ return 0;
+
+ bits.outp.mask = enbb;
+ bits.outp.highvals = outhigh;
+
+ if ((err = bt878_device_control(state->bt, DST_IG_WRITE, &bits)) < 0) {
+ dprintk("%s: dst_gpio_outb error (err == %i, enbb == 0x%02x, outhigh == 0x%02x)\n", __FUNCTION__, err, enbb, outhigh);
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int dst_gpio_inb(struct dst_state *state, u8 * result)
+{
+ union dst_gpio_packet rd_packet;
+ int err;
+
+ *result = 0;
+
+ if ((err = bt878_device_control(state->bt, DST_IG_READ, &rd_packet)) < 0) {
+ dprintk("%s: dst_gpio_inb error (err == %i)\n", __FUNCTION__, err);
+ return -EREMOTEIO;
+ }
+
+ *result = (u8) rd_packet.rd.value;
+ return 0;
+}
+
+#define DST_I2C_ENABLE 1
+#define DST_8820 2
+
+static int dst_reset8820(struct dst_state *state)
+{
+ int retval;
+ /* pull 8820 gpio pin low, wait, high, wait, then low */
+ // dprintk ("%s: reset 8820\n", __FUNCTION__);
+ retval = dst_gpio_outb(state, DST_8820, DST_8820, 0);
+ if (retval < 0)
+ return retval;
+ msleep(10);
+ retval = dst_gpio_outb(state, DST_8820, DST_8820, DST_8820);
+ if (retval < 0)
+ return retval;
+ /* wait for more feedback on what works here *
+ msleep(10);
+ retval = dst_gpio_outb(dst, DST_8820, DST_8820, 0);
+ if (retval < 0)
+ return retval;
+ */
+ return 0;
+}
+
+static int dst_i2c_enable(struct dst_state *state)
+{
+ int retval;
+ /* pull I2C enable gpio pin low, wait */
+ // dprintk ("%s: i2c enable\n", __FUNCTION__);
+ retval = dst_gpio_outb(state, ~0, DST_I2C_ENABLE, 0);
+ if (retval < 0)
+ return retval;
+ // dprintk ("%s: i2c enable delay\n", __FUNCTION__);
+ msleep(33);
+ return 0;
+}
+
+static int dst_i2c_disable(struct dst_state *state)
+{
+ int retval;
+ /* release I2C enable gpio pin, wait */
+ // dprintk ("%s: i2c disable\n", __FUNCTION__);
+ retval = dst_gpio_outb(state, ~0, 0, 0);
+ if (retval < 0)
+ return retval;
+ // dprintk ("%s: i2c disable delay\n", __FUNCTION__);
+ msleep(33);
+ return 0;
+}
+
+static int dst_wait_dst_ready(struct dst_state *state)
+{
+ u8 reply;
+ int retval;
+ int i;
+ for (i = 0; i < 200; i++) {
+ retval = dst_gpio_inb(state, &reply);
+ if (retval < 0)
+ return retval;
+ if ((reply & DST_I2C_ENABLE) == 0) {
+ dprintk("%s: dst wait ready after %d\n", __FUNCTION__, i);
+ return 1;
+ }
+ msleep(10);
+ }
+ dprintk("%s: dst wait NOT ready after %d\n", __FUNCTION__, i);
+ return 0;
+}
+
+static int write_dst(struct dst_state *state, u8 * data, u8 len)
+{
+ struct i2c_msg msg = {
+ .addr = state->config->demod_address,.flags = 0,.buf = data,.len = len
+ };
+ int err;
+ int cnt;
+
+ if (dst_debug && dst_verbose) {
+ u8 i;
+ dprintk("%s writing", __FUNCTION__);
+ for (i = 0; i < len; i++) {
+ dprintk(" 0x%02x", data[i]);
+ }
+ dprintk("\n");
+ }
+ msleep(30);
+ for (cnt = 0; cnt < 4; cnt++) {
+ if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
+ dprintk("%s: write_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, data[0]);
+ dst_i2c_disable(state);
+ msleep(500);
+ dst_i2c_enable(state);
+ msleep(500);
+ continue;
+ } else
+ break;
+ }
+ if (cnt >= 4)
+ return -EREMOTEIO;
+ return 0;
+}
+
+static int read_dst(struct dst_state *state, u8 * ret, u8 len)
+{
+ struct i2c_msg msg = {.addr = state->config->demod_address,.flags = I2C_M_RD,.buf = ret,.len = len };
+ int err;
+ int cnt;
+
+ for (cnt = 0; cnt < 4; cnt++) {
+ if ((err = i2c_transfer(state->i2c, &msg, 1)) < 0) {
+ dprintk("%s: read_dst error (err == %i, len == 0x%02x, b0 == 0x%02x)\n", __FUNCTION__, err, len, ret[0]);
+ dst_i2c_disable(state);
+ dst_i2c_enable(state);
+ continue;
+ } else
+ break;
+ }
+ if (cnt >= 4)
+ return -EREMOTEIO;
+ dprintk("%s reply is 0x%x\n", __FUNCTION__, ret[0]);
+ if (dst_debug && dst_verbose) {
+ for (err = 1; err < len; err++)
+ dprintk(" 0x%x", ret[err]);
+ if (err > 1)
+ dprintk("\n");
+ }
+ return 0;
+}
+
+static int dst_set_freq(struct dst_state *state, u32 freq)
+{
+ u8 *val;
+
+ state->frequency = freq;
+
+ // dprintk("%s: set frequency %u\n", __FUNCTION__, freq);
+ if (state->dst_type == DST_TYPE_IS_SAT) {
+ freq = freq / 1000;
+ if (freq < 950 || freq > 2150)
+ return -EINVAL;
+ val = &state->tx_tuna[0];
+ val[2] = (freq >> 8) & 0x7f;
+ val[3] = (u8) freq;
+ val[4] = 1;
+ val[8] &= ~4;
+ if (freq < 1531)
+ val[8] |= 4;
+ } else if (state->dst_type == DST_TYPE_IS_TERR) {
+ freq = freq / 1000;
+ if (freq < 137000 || freq > 858000)
+ return -EINVAL;
+ val = &state->tx_tuna[0];
+ val[2] = (freq >> 16) & 0xff;
+ val[3] = (freq >> 8) & 0xff;
+ val[4] = (u8) freq;
+ val[5] = 0;
+ switch (state->bandwidth) {
+ case BANDWIDTH_6_MHZ:
+ val[6] = 6;
+ break;
+
+ case BANDWIDTH_7_MHZ:
+ case BANDWIDTH_AUTO:
+ val[6] = 7;
+ break;
+
+ case BANDWIDTH_8_MHZ:
+ val[6] = 8;
+ break;
+ }
+
+ val[7] = 0;
+ val[8] = 0;
+ } else if (state->dst_type == DST_TYPE_IS_CABLE) {
+ /* guess till will get one */
+ freq = freq / 1000;
+ val = &state->tx_tuna[0];
+ val[2] = (freq >> 16) & 0xff;
+ val[3] = (freq >> 8) & 0xff;
+ val[4] = (u8) freq;
+ } else
+ return -EINVAL;
+ return 0;
+}
+
+static int dst_set_bandwidth(struct dst_state* state, fe_bandwidth_t bandwidth)
+{
+ u8 *val;
+
+ state->bandwidth = bandwidth;
+
+ if (state->dst_type != DST_TYPE_IS_TERR)
+ return 0;
+
+ val = &state->tx_tuna[0];
+ switch (bandwidth) {
+ case BANDWIDTH_6_MHZ:
+ val[6] = 6;
+ break;
+
+ case BANDWIDTH_7_MHZ:
+ val[6] = 7;
+ break;
+
+ case BANDWIDTH_8_MHZ:
+ val[6] = 8;
+ break;
+
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int dst_set_inversion(struct dst_state* state, fe_spectral_inversion_t inversion)
+{
+ u8 *val;
+
+ state->inversion = inversion;
+
+ val = &state->tx_tuna[0];
+
+ val[8] &= ~0x80;
+
+ switch (inversion) {
+ case INVERSION_OFF:
+ break;
+ case INVERSION_ON:
+ val[8] |= 0x80;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int dst_set_fec(struct dst_state* state, fe_code_rate_t fec)
+{
+ state->fec = fec;
+ return 0;
+}
+
+static fe_code_rate_t dst_get_fec(struct dst_state* state)
+{
+ return state->fec;
+}
+
+static int dst_set_symbolrate(struct dst_state* state, u32 srate)
+{
+ u8 *val;
+ u32 symcalc;
+ u64 sval;
+
+ state->symbol_rate = srate;
+
+ if (state->dst_type == DST_TYPE_IS_TERR) {
+ return 0;
+ }
+ // dprintk("%s: set srate %u\n", __FUNCTION__, srate);
+ srate /= 1000;
+ val = &state->tx_tuna[0];
+
+ if (state->type_flags & DST_TYPE_HAS_SYMDIV) {
+ sval = srate;
+ sval <<= 20;
+ do_div(sval, 88000);
+ symcalc = (u32) sval;
+ // dprintk("%s: set symcalc %u\n", __FUNCTION__, symcalc);
+ val[5] = (u8) (symcalc >> 12);
+ val[6] = (u8) (symcalc >> 4);
+ val[7] = (u8) (symcalc << 4);
+ } else {
+ val[5] = (u8) (srate >> 16) & 0x7f;
+ val[6] = (u8) (srate >> 8);
+ val[7] = (u8) srate;
+ }
+ val[8] &= ~0x20;
+ if (srate > 8000)
+ val[8] |= 0x20;
+ return 0;
+}
+
+static u8 dst_check_sum(u8 * buf, u32 len)
+{
+ u32 i;
+ u8 val = 0;
+ if (!len)
+ return 0;
+ for (i = 0; i < len; i++) {
+ val += buf[i];
+ }
+ return ((~val) + 1);
+}
+
+struct dst_types {
+ char *mstr;
+ int offs;
+ u8 dst_type;
+ u32 type_flags;
+};
+
+static struct dst_types dst_tlist[] = {
+ {"DST-020", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
+ {"DST-030", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
+ {"DST-03T", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV | DST_TYPE_HAS_TS204},
+ {"DST-MOT", 0, DST_TYPE_IS_SAT, DST_TYPE_HAS_SYMDIV},
+ {"DST-CI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_TS204 | DST_TYPE_HAS_NEWTUNE},
+ {"DSTMCI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
+ {"DSTFCI", 1, DST_TYPE_IS_SAT, DST_TYPE_HAS_NEWTUNE},
+ {"DCTNEW", 1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE},
+ {"DCT-CI", 1, DST_TYPE_IS_CABLE, DST_TYPE_HAS_NEWTUNE | DST_TYPE_HAS_TS204},
+ {"DTTDIG", 1, DST_TYPE_IS_TERR, 0}
+};
+
+/* DCTNEW and DCT-CI are guesses */
+
+static void dst_type_flags_print(u32 type_flags)
+{
+ printk("DST type flags :");
+ if (type_flags & DST_TYPE_HAS_NEWTUNE)
+ printk(" 0x%x newtuner", DST_TYPE_HAS_NEWTUNE);
+ if (type_flags & DST_TYPE_HAS_TS204)
+ printk(" 0x%x ts204", DST_TYPE_HAS_TS204);
+ if (type_flags & DST_TYPE_HAS_SYMDIV)
+ printk(" 0x%x symdiv", DST_TYPE_HAS_SYMDIV);
+ printk("\n");
+}
+
+static int dst_type_print(u8 type)
+{
+ char *otype;
+ switch (type) {
+ case DST_TYPE_IS_SAT:
+ otype = "satellite";
+ break;
+ case DST_TYPE_IS_TERR:
+ otype = "terrestrial";
+ break;
+ case DST_TYPE_IS_CABLE:
+ otype = "cable";
+ break;
+ default:
+ printk("%s: invalid dst type %d\n", __FUNCTION__, type);
+ return -EINVAL;
+ }
+ printk("DST type : %s\n", otype);
+ return 0;
+}
+
+static int dst_check_ci(struct dst_state *state)
+{
+ u8 txbuf[8];
+ u8 rxbuf[8];
+ int retval;
+ int i;
+ struct dst_types *dsp;
+ u8 use_dst_type;
+ u32 use_type_flags;
+
+ memset(txbuf, 0, sizeof(txbuf));
+ txbuf[1] = 6;
+ txbuf[7] = dst_check_sum(txbuf, 7);
+
+ dst_i2c_enable(state);
+ dst_reset8820(state);
+ retval = write_dst(state, txbuf, 8);
+ if (retval < 0) {
+ dst_i2c_disable(state);
+ dprintk("%s: write not successful, maybe no card?\n", __FUNCTION__);
+ return retval;
+ }
+ msleep(3);
+ retval = read_dst(state, rxbuf, 1);
+ dst_i2c_disable(state);
+ if (retval < 0) {
+ dprintk("%s: read not successful, maybe no card?\n", __FUNCTION__);
+ return retval;
+ }
+ if (rxbuf[0] != 0xff) {
+ dprintk("%s: write reply not 0xff, not ci (%02x)\n", __FUNCTION__, rxbuf[0]);
+ return retval;
+ }
+ if (!dst_wait_dst_ready(state))
+ return 0;
+ // dst_i2c_enable(i2c); Dimitri
+ retval = read_dst(state, rxbuf, 8);
+ dst_i2c_disable(state);
+ if (retval < 0) {
+ dprintk("%s: read not successful\n", __FUNCTION__);
+ return retval;
+ }
+ if (rxbuf[7] != dst_check_sum(rxbuf, 7)) {
+ dprintk("%s: checksum failure\n", __FUNCTION__);
+ return retval;
+ }
+ rxbuf[7] = '\0';
+ for (i = 0, dsp = &dst_tlist[0]; i < sizeof(dst_tlist) / sizeof(dst_tlist[0]); i++, dsp++) {
+ if (!strncmp(&rxbuf[dsp->offs], dsp->mstr, strlen(dsp->mstr))) {
+ use_type_flags = dsp->type_flags;
+ use_dst_type = dsp->dst_type;
+ printk("%s: recognize %s\n", __FUNCTION__, dsp->mstr);
+ break;
+ }
+ }
+ if (i >= sizeof(dst_tlist) / sizeof(dst_tlist[0])) {
+ printk("%s: unable to recognize %s or %s\n", __FUNCTION__, &rxbuf[0], &rxbuf[1]);
+ printk("%s please email linux-dvb@linuxtv.org with this type in\n", __FUNCTION__);
+ use_dst_type = DST_TYPE_IS_SAT;
+ use_type_flags = DST_TYPE_HAS_SYMDIV;
+ }
+ dst_type_print(use_dst_type);
+
+ state->type_flags = use_type_flags;
+ state->dst_type = use_dst_type;
+ dst_type_flags_print(state->type_flags);
+
+ if (state->type_flags & DST_TYPE_HAS_TS204) {
+ dst_packsize(state, 204);
+ }
+ return 0;
+}
+
+static int dst_command(struct dst_state* state, u8 * data, u8 len)
+{
+ int retval;
+ u8 reply;
+
+ dst_i2c_enable(state);
+ dst_reset8820(state);
+ retval = write_dst(state, data, len);
+ if (retval < 0) {
+ dst_i2c_disable(state);
+ dprintk("%s: write not successful\n", __FUNCTION__);
+ return retval;
+ }
+ msleep(33);
+ retval = read_dst(state, &reply, 1);
+ dst_i2c_disable(state);
+ if (retval < 0) {
+ dprintk("%s: read verify not successful\n", __FUNCTION__);
+ return retval;
+ }
+ if (reply != 0xff) {
+ dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
+ return 0;
+ }
+ if (len >= 2 && data[0] == 0 && (data[1] == 1 || data[1] == 3))
+ return 0;
+ if (!dst_wait_dst_ready(state))
+ return 0;
+ // dst_i2c_enable(i2c); Per dimitri
+ retval = read_dst(state, state->rxbuffer, 8);
+ dst_i2c_disable(state);
+ if (retval < 0) {
+ dprintk("%s: read not successful\n", __FUNCTION__);
+ return 0;
+ }
+ if (state->rxbuffer[7] != dst_check_sum(state->rxbuffer, 7)) {
+ dprintk("%s: checksum failure\n", __FUNCTION__);
+ return 0;
+ }
+ return 0;
+}
+
+static int dst_get_signal(struct dst_state* state)
+{
+ int retval;
+ u8 get_signal[] = { 0x00, 0x05, 0x00, 0x00, 0x00, 0x00, 0x00, 0xfb };
+
+ if ((state->diseq_flags & ATTEMPT_TUNE) == 0) {
+ state->decode_lock = state->decode_strength = state->decode_snr = 0;
+ return 0;
+ }
+ if (0 == (state->diseq_flags & HAS_LOCK)) {
+ state->decode_lock = state->decode_strength = state->decode_snr = 0;
+ return 0;
+ }
+ if (time_after_eq(jiffies, state->cur_jiff + (HZ / 5))) {
+ retval = dst_command(state, get_signal, 8);
+ if (retval < 0)
+ return retval;
+ if (state->dst_type == DST_TYPE_IS_SAT) {
+ state->decode_lock = ((state->rxbuffer[6] & 0x10) == 0) ? 1 : 0;
+ state->decode_strength = state->rxbuffer[5] << 8;
+ state->decode_snr = state->rxbuffer[2] << 8 | state->rxbuffer[3];
+ } else if ((state->dst_type == DST_TYPE_IS_TERR) || (state->dst_type == DST_TYPE_IS_CABLE)) {
+ state->decode_lock = (state->rxbuffer[1]) ? 1 : 0;
+ state->decode_strength = state->rxbuffer[4] << 8;
+ state->decode_snr = state->rxbuffer[3] << 8;
+ }
+ state->cur_jiff = jiffies;
+ }
+ return 0;
+}
+
+static int dst_tone_power_cmd(struct dst_state* state)
+{
+ u8 paket[8] = { 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00 };
+
+ if (state->dst_type == DST_TYPE_IS_TERR)
+ return 0;
+
+ if (state->voltage == SEC_VOLTAGE_OFF)
+ paket[4] = 0;
+ else
+ paket[4] = 1;
+ if (state->tone == SEC_TONE_ON)
+ paket[2] = state->k22;
+ else
+ paket[2] = 0;
+ paket[7] = dst_check_sum(&paket[0], 7);
+ dst_command(state, paket, 8);
+ return 0;
+}
+
+static int dst_get_tuna(struct dst_state* state)
+{
+ int retval;
+ if ((state->diseq_flags & ATTEMPT_TUNE) == 0)
+ return 0;
+ state->diseq_flags &= ~(HAS_LOCK);
+ if (!dst_wait_dst_ready(state))
+ return 0;
+ if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
+ /* how to get variable length reply ???? */
+ retval = read_dst(state, state->rx_tuna, 10);
+ } else {
+ retval = read_dst(state, &state->rx_tuna[2], 8);
+ }
+ if (retval < 0) {
+ dprintk("%s: read not successful\n", __FUNCTION__);
+ return 0;
+ }
+ if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
+ if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[0], 9)) {
+ dprintk("%s: checksum failure?\n", __FUNCTION__);
+ return 0;
+ }
+ } else {
+ if (state->rx_tuna[9] != dst_check_sum(&state->rx_tuna[2], 7)) {
+ dprintk("%s: checksum failure?\n", __FUNCTION__);
+ return 0;
+ }
+ }
+ if (state->rx_tuna[2] == 0 && state->rx_tuna[3] == 0)
+ return 0;
+ state->decode_freq = ((state->rx_tuna[2] & 0x7f) << 8) + state->rx_tuna[3];
+
+ state->decode_lock = 1;
+ /*
+ dst->decode_n1 = (dst->rx_tuna[4] << 8) +
+ (dst->rx_tuna[5]);
+
+ dst->decode_n2 = (dst->rx_tuna[8] << 8) +
+ (dst->rx_tuna[7]);
+ */
+ state->diseq_flags |= HAS_LOCK;
+ /* dst->cur_jiff = jiffies; */
+ return 1;
+}
+
+static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage);
+
+static int dst_write_tuna(struct dvb_frontend* fe)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+ int retval;
+ u8 reply;
+
+ dprintk("%s: type_flags 0x%x \n", __FUNCTION__, state->type_flags);
+ state->decode_freq = 0;
+ state->decode_lock = state->decode_strength = state->decode_snr = 0;
+ if (state->dst_type == DST_TYPE_IS_SAT) {
+ if (!(state->diseq_flags & HAS_POWER))
+ dst_set_voltage(fe, SEC_VOLTAGE_13);
+ }
+ state->diseq_flags &= ~(HAS_LOCK | ATTEMPT_TUNE);
+ dst_i2c_enable(state);
+ if (state->type_flags & DST_TYPE_HAS_NEWTUNE) {
+ dst_reset8820(state);
+ state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[0], 9);
+ retval = write_dst(state, &state->tx_tuna[0], 10);
+ } else {
+ state->tx_tuna[9] = dst_check_sum(&state->tx_tuna[2], 7);
+ retval = write_dst(state, &state->tx_tuna[2], 8);
+ }
+ if (retval < 0) {
+ dst_i2c_disable(state);
+ dprintk("%s: write not successful\n", __FUNCTION__);
+ return retval;
+ }
+ msleep(3);
+ retval = read_dst(state, &reply, 1);
+ dst_i2c_disable(state);
+ if (retval < 0) {
+ dprintk("%s: read verify not successful\n", __FUNCTION__);
+ return retval;
+ }
+ if (reply != 0xff) {
+ dprintk("%s: write reply not 0xff 0x%02x \n", __FUNCTION__, reply);
+ return 0;
+ }
+ state->diseq_flags |= ATTEMPT_TUNE;
+ return dst_get_tuna(state);
+}
+
+/*
+ * line22k0 0x00, 0x09, 0x00, 0xff, 0x01, 0x00, 0x00, 0x00
+ * line22k1 0x00, 0x09, 0x01, 0xff, 0x01, 0x00, 0x00, 0x00
+ * line22k2 0x00, 0x09, 0x02, 0xff, 0x01, 0x00, 0x00, 0x00
+ * tone 0x00, 0x09, 0xff, 0x00, 0x01, 0x00, 0x00, 0x00
+ * data 0x00, 0x09, 0xff, 0x01, 0x01, 0x00, 0x00, 0x00
+ * power_off 0x00, 0x09, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00
+ * power_on 0x00, 0x09, 0xff, 0xff, 0x01, 0x00, 0x00, 0x00
+ * Diseqc 1 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec
+ * Diseqc 2 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf4, 0xe8
+ * Diseqc 3 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf8, 0xe4
+ * Diseqc 4 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xfc, 0xe0
+ */
+
+static int dst_set_diseqc(struct dvb_frontend* fe, struct dvb_diseqc_master_cmd* cmd)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+ u8 paket[8] = { 0x00, 0x08, 0x04, 0xe0, 0x10, 0x38, 0xf0, 0xec };
+
+ if (state->dst_type == DST_TYPE_IS_TERR)
+ return 0;
+
+ if (cmd->msg_len == 0 || cmd->msg_len > 4)
+ return -EINVAL;
+ memcpy(&paket[3], cmd->msg, cmd->msg_len);
+ paket[7] = dst_check_sum(&paket[0], 7);
+ dst_command(state, paket, 8);
+ return 0;
+}
+
+static int dst_set_voltage(struct dvb_frontend* fe, fe_sec_voltage_t voltage)
+{
+ u8 *val;
+ int need_cmd;
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ state->voltage = voltage;
+
+ if (state->dst_type == DST_TYPE_IS_TERR)
+ return 0;
+
+ need_cmd = 0;
+ val = &state->tx_tuna[0];
+ val[8] &= ~0x40;
+ switch (voltage) {
+ case SEC_VOLTAGE_13:
+ if ((state->diseq_flags & HAS_POWER) == 0)
+ need_cmd = 1;
+ state->diseq_flags |= HAS_POWER;
+ break;
+ case SEC_VOLTAGE_18:
+ if ((state->diseq_flags & HAS_POWER) == 0)
+ need_cmd = 1;
+ state->diseq_flags |= HAS_POWER;
+ val[8] |= 0x40;
+ break;
+ case SEC_VOLTAGE_OFF:
+ need_cmd = 1;
+ state->diseq_flags &= ~(HAS_POWER | HAS_LOCK | ATTEMPT_TUNE);
+ break;
+ default:
+ return -EINVAL;
+ }
+ if (need_cmd) {
+ dst_tone_power_cmd(state);
+ }
+ return 0;
+}
+
+static int dst_set_tone(struct dvb_frontend* fe, fe_sec_tone_mode_t tone)
+{
+ u8 *val;
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ state->tone = tone;
+
+ if (state->dst_type == DST_TYPE_IS_TERR)
+ return 0;
+
+ val = &state->tx_tuna[0];
+
+ val[8] &= ~0x1;
+
+ switch (tone) {
+ case SEC_TONE_OFF:
+ break;
+ case SEC_TONE_ON:
+ val[8] |= 1;
+ break;
+ default:
+ return -EINVAL;
+ }
+ dst_tone_power_cmd(state);
+ return 0;
+}
+
+static int dst_init(struct dvb_frontend* fe)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+ static u8 ini_satci_tuna[] = { 9, 0, 3, 0xb6, 1, 0, 0x73, 0x21, 0, 0 };
+ static u8 ini_satfta_tuna[] = { 0, 0, 3, 0xb6, 1, 0x55, 0xbd, 0x50, 0, 0 };
+ static u8 ini_tvfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+ static u8 ini_tvci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+ static u8 ini_cabfta_tuna[] = { 0, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+ static u8 ini_cabci_tuna[] = { 9, 0, 3, 0xb6, 1, 7, 0x0, 0x0, 0, 0 };
+ state->inversion = INVERSION_ON;
+ state->voltage = SEC_VOLTAGE_13;
+ state->tone = SEC_TONE_OFF;
+ state->symbol_rate = 29473000;
+ state->fec = FEC_AUTO;
+ state->diseq_flags = 0;
+ state->k22 = 0x02;
+ state->bandwidth = BANDWIDTH_7_MHZ;
+ state->cur_jiff = jiffies;
+ if (state->dst_type == DST_TYPE_IS_SAT) {
+ state->frequency = 950000;
+ memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_satci_tuna : ini_satfta_tuna), sizeof(ini_satfta_tuna));
+ } else if (state->dst_type == DST_TYPE_IS_TERR) {
+ state->frequency = 137000000;
+ memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_tvci_tuna : ini_tvfta_tuna), sizeof(ini_tvfta_tuna));
+ } else if (state->dst_type == DST_TYPE_IS_CABLE) {
+ state->frequency = 51000000;
+ memcpy(state->tx_tuna, ((state->type_flags & DST_TYPE_HAS_NEWTUNE) ? ini_cabci_tuna : ini_cabfta_tuna), sizeof(ini_cabfta_tuna));
+ }
+
+ return 0;
+}
+
+static int dst_read_status(struct dvb_frontend* fe, fe_status_t* status)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ *status = 0;
+ if (state->diseq_flags & HAS_LOCK) {
+ dst_get_signal(state);
+ if (state->decode_lock)
+ *status |= FE_HAS_LOCK | FE_HAS_SIGNAL | FE_HAS_CARRIER | FE_HAS_SYNC | FE_HAS_VITERBI;
+ }
+
+ return 0;
+}
+
+static int dst_read_signal_strength(struct dvb_frontend* fe, u16* strength)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ dst_get_signal(state);
+ *strength = state->decode_strength;
+
+ return 0;
+}
+
+static int dst_read_snr(struct dvb_frontend* fe, u16* snr)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ dst_get_signal(state);
+ *snr = state->decode_snr;
+
+ return 0;
+}
+
+static int dst_set_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ dst_set_freq(state, p->frequency);
+ dst_set_inversion(state, p->inversion);
+ if (state->dst_type == DST_TYPE_IS_SAT) {
+ dst_set_fec(state, p->u.qpsk.fec_inner);
+ dst_set_symbolrate(state, p->u.qpsk.symbol_rate);
+ } else if (state->dst_type == DST_TYPE_IS_TERR) {
+ dst_set_bandwidth(state, p->u.ofdm.bandwidth);
+ } else if (state->dst_type == DST_TYPE_IS_CABLE) {
+ dst_set_fec(state, p->u.qam.fec_inner);
+ dst_set_symbolrate(state, p->u.qam.symbol_rate);
+ }
+ dst_write_tuna(fe);
+
+ return 0;
+}
+
+static int dst_get_frontend(struct dvb_frontend* fe, struct dvb_frontend_parameters *p)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+
+ p->frequency = state->decode_freq;
+ p->inversion = state->inversion;
+ if (state->dst_type == DST_TYPE_IS_SAT) {
+ p->u.qpsk.symbol_rate = state->symbol_rate;
+ p->u.qpsk.fec_inner = dst_get_fec(state);
+ } else if (state->dst_type == DST_TYPE_IS_TERR) {
+ p->u.ofdm.bandwidth = state->bandwidth;
+ } else if (state->dst_type == DST_TYPE_IS_CABLE) {
+ p->u.qam.symbol_rate = state->symbol_rate;
+ p->u.qam.fec_inner = dst_get_fec(state);
+ p->u.qam.modulation = QAM_AUTO;
+ }
+
+ return 0;
+}
+
+static void dst_release(struct dvb_frontend* fe)
+{
+ struct dst_state* state = (struct dst_state*) fe->demodulator_priv;
+ kfree(state);
+}
+
+static struct dvb_frontend_ops dst_dvbt_ops;
+static struct dvb_frontend_ops dst_dvbs_ops;
+static struct dvb_frontend_ops dst_dvbc_ops;
+
+struct dvb_frontend* dst_attach(const struct dst_config* config,
+ struct i2c_adapter* i2c,
+ struct bt878 *bt)
+{
+ struct dst_state* state = NULL;
+
+ /* allocate memory for the internal state */
+ state = (struct dst_state*) kmalloc(sizeof(struct dst_state), GFP_KERNEL);
+ if (state == NULL) goto error;
+
+ /* setup the state */
+ state->config = config;
+ state->i2c = i2c;
+ state->bt = bt;
+
+ /* check if the demod is there */
+ if (dst_check_ci(state) < 0) goto error;
+
+ /* determine settings based on type */
+ switch (state->dst_type) {
+ case DST_TYPE_IS_TERR:
+ memcpy(&state->ops, &dst_dvbt_ops, sizeof(struct dvb_frontend_ops));
+ break;
+ case DST_TYPE_IS_CABLE:
+ memcpy(&state->ops, &dst_dvbc_ops, sizeof(struct dvb_frontend_ops));
+ break;
+ case DST_TYPE_IS_SAT:
+ memcpy(&state->ops, &dst_dvbs_ops, sizeof(struct dvb_frontend_ops));
+ break;
+ default:
+ printk("dst: unknown frontend type. please report to the LinuxTV.org DVB mailinglist.\n");
+ goto error;
+ }
+
+ /* create dvb_frontend */
+ state->frontend.ops = &state->ops;
+ state->frontend.demodulator_priv = state;
+ return &state->frontend;
+
+error:
+ if (state) kfree(state);
+ return NULL;
+}
+
+static struct dvb_frontend_ops dst_dvbt_ops = {
+
+ .info = {
+ .name = "DST DVB-T",
+ .type = FE_OFDM,
+ .frequency_min = 137000000,
+ .frequency_max = 858000000,
+ .frequency_stepsize = 166667,
+ .caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO | FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO
+ },
+
+ .release = dst_release,
+
+ .init = dst_init,
+
+ .set_frontend = dst_set_frontend,
+ .get_frontend = dst_get_frontend,
+
+ .read_status = dst_read_status,
+ .read_signal_strength = dst_read_signal_strength,
+ .read_snr = dst_read_snr,
+};
+
+static struct dvb_frontend_ops dst_dvbs_ops = {
+
+ .info = {
+ .name = "DST DVB-S",
+ .type = FE_QPSK,
+ .frequency_min = 950000,
+ .frequency_max = 2150000,
+ .frequency_stepsize = 1000, /* kHz for QPSK frontends */
+ .frequency_tolerance = 29500,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ /* . symbol_rate_tolerance = ???,*/
+ .caps = FE_CAN_FEC_AUTO | FE_CAN_QPSK
+ },
+
+ .release = dst_release,
+
+ .init = dst_init,
+
+ .set_frontend = dst_set_frontend,
+ .get_frontend = dst_get_frontend,
+
+ .read_status = dst_read_status,
+ .read_signal_strength = dst_read_signal_strength,
+ .read_snr = dst_read_snr,
+
+ .diseqc_send_master_cmd = dst_set_diseqc,
+ .set_voltage = dst_set_voltage,
+ .set_tone = dst_set_tone,
+};
+
+static struct dvb_frontend_ops dst_dvbc_ops = {
+
+ .info = {
+ .name = "DST DVB-C",
+ .type = FE_QAM,
+ .frequency_stepsize = 62500,
+ .frequency_min = 51000000,
+ .frequency_max = 858000000,
+ .symbol_rate_min = 1000000,
+ .symbol_rate_max = 45000000,
+ /* . symbol_rate_tolerance = ???,*/
+ .caps = FE_CAN_FEC_AUTO | FE_CAN_QAM_AUTO
+ },
+
+ .release = dst_release,
+
+ .init = dst_init,
+
+ .set_frontend = dst_set_frontend,
+ .get_frontend = dst_get_frontend,
+
+ .read_status = dst_read_status,
+ .read_signal_strength = dst_read_signal_strength,
+ .read_snr = dst_read_snr,
+};
+
+MODULE_DESCRIPTION("DST DVB-S/T/C Combo Frontend driver");
+MODULE_AUTHOR("Jamie Honan");
+MODULE_LICENSE("GPL");
+
+EXPORT_SYMBOL(dst_attach);
git://git.onelab.eu / linux-2.6.git / blobdiff