| /* |
| 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); |