diff options
Diffstat (limited to 'drivers/media/dvb/bt8xx/dst.c')
| -rw-r--r-- | drivers/media/dvb/bt8xx/dst.c | 1089 |
1 files changed, 1089 insertions, 0 deletions
diff --git a/drivers/media/dvb/bt8xx/dst.c b/drivers/media/dvb/bt8xx/dst.c new file mode 100644 index 000000000000..eac83768dfd0 --- /dev/null +++ b/drivers/media/dvb/bt8xx/dst.c @@ -0,0 +1,1089 @@ +/* + 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: + 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); |