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Diffstat (limited to 'drivers/media/dvb/frontends/zl10353.c')
-rw-r--r--drivers/media/dvb/frontends/zl10353.c684
1 files changed, 0 insertions, 684 deletions
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
deleted file mode 100644
index 82946cd517f..00000000000
--- a/drivers/media/dvb/frontends/zl10353.c
+++ /dev/null
@@ -1,684 +0,0 @@
-/*
- * Driver for Zarlink DVB-T ZL10353 demodulator
- *
- * Copyright (C) 2006, 2007 Christopher Pascoe <c.pascoe@itee.uq.edu.au>
- *
- * 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/delay.h>
-#include <linux/string.h>
-#include <linux/slab.h>
-#include <asm/div64.h>
-
-#include "dvb_frontend.h"
-#include "zl10353_priv.h"
-#include "zl10353.h"
-
-struct zl10353_state {
- struct i2c_adapter *i2c;
- struct dvb_frontend frontend;
-
- struct zl10353_config config;
-
- u32 bandwidth;
- u32 ucblocks;
- u32 frequency;
-};
-
-static int debug;
-#define dprintk(args...) \
- do { \
- if (debug) printk(KERN_DEBUG "zl10353: " args); \
- } while (0)
-
-static int debug_regs;
-
-static int zl10353_single_write(struct dvb_frontend *fe, u8 reg, u8 val)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u8 buf[2] = { reg, val };
- struct i2c_msg msg = { .addr = state->config.demod_address, .flags = 0,
- .buf = buf, .len = 2 };
- int err = i2c_transfer(state->i2c, &msg, 1);
- if (err != 1) {
- printk("zl10353: write to reg %x failed (err = %d)!\n", reg, err);
- return err;
- }
- return 0;
-}
-
-static int zl10353_write(struct dvb_frontend *fe, const u8 ibuf[], int ilen)
-{
- int err, i;
- for (i = 0; i < ilen - 1; i++)
- if ((err = zl10353_single_write(fe, ibuf[0] + i, ibuf[i + 1])))
- return err;
-
- return 0;
-}
-
-static int zl10353_read_register(struct zl10353_state *state, u8 reg)
-{
- int ret;
- u8 b0[1] = { reg };
- u8 b1[1] = { 0 };
- struct i2c_msg msg[2] = { { .addr = state->config.demod_address,
- .flags = 0,
- .buf = b0, .len = 1 },
- { .addr = state->config.demod_address,
- .flags = I2C_M_RD,
- .buf = b1, .len = 1 } };
-
- ret = i2c_transfer(state->i2c, msg, 2);
-
- if (ret != 2) {
- printk("%s: readreg error (reg=%d, ret==%i)\n",
- __func__, reg, ret);
- return ret;
- }
-
- return b1[0];
-}
-
-static void zl10353_dump_regs(struct dvb_frontend *fe)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- int ret;
- u8 reg;
-
- /* Dump all registers. */
- for (reg = 0; ; reg++) {
- if (reg % 16 == 0) {
- if (reg)
- printk(KERN_CONT "\n");
- printk(KERN_DEBUG "%02x:", reg);
- }
- ret = zl10353_read_register(state, reg);
- if (ret >= 0)
- printk(KERN_CONT " %02x", (u8)ret);
- else
- printk(KERN_CONT " --");
- if (reg == 0xff)
- break;
- }
- printk(KERN_CONT "\n");
-}
-
-static void zl10353_calc_nominal_rate(struct dvb_frontend *fe,
- u32 bandwidth,
- u16 *nominal_rate)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u32 adc_clock = 450560; /* 45.056 MHz */
- u64 value;
- u8 bw = bandwidth / 1000000;
-
- if (state->config.adc_clock)
- adc_clock = state->config.adc_clock;
-
- value = (u64)10 * (1 << 23) / 7 * 125;
- value = (bw * value) + adc_clock / 2;
- do_div(value, adc_clock);
- *nominal_rate = value;
-
- dprintk("%s: bw %d, adc_clock %d => 0x%x\n",
- __func__, bw, adc_clock, *nominal_rate);
-}
-
-static void zl10353_calc_input_freq(struct dvb_frontend *fe,
- u16 *input_freq)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u32 adc_clock = 450560; /* 45.056 MHz */
- int if2 = 361667; /* 36.1667 MHz */
- int ife;
- u64 value;
-
- if (state->config.adc_clock)
- adc_clock = state->config.adc_clock;
- if (state->config.if2)
- if2 = state->config.if2;
-
- if (adc_clock >= if2 * 2)
- ife = if2;
- else {
- ife = adc_clock - (if2 % adc_clock);
- if (ife > adc_clock / 2)
- ife = adc_clock - ife;
- }
- value = (u64)65536 * ife + adc_clock / 2;
- do_div(value, adc_clock);
- *input_freq = -value;
-
- dprintk("%s: if2 %d, ife %d, adc_clock %d => %d / 0x%x\n",
- __func__, if2, ife, adc_clock, -(int)value, *input_freq);
-}
-
-static int zl10353_sleep(struct dvb_frontend *fe)
-{
- static u8 zl10353_softdown[] = { 0x50, 0x0C, 0x44 };
-
- zl10353_write(fe, zl10353_softdown, sizeof(zl10353_softdown));
- return 0;
-}
-
-static int zl10353_set_parameters(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct zl10353_state *state = fe->demodulator_priv;
- u16 nominal_rate, input_freq;
- u8 pllbuf[6] = { 0x67 }, acq_ctl = 0;
- u16 tps = 0;
-
- state->frequency = c->frequency;
-
- zl10353_single_write(fe, RESET, 0x80);
- udelay(200);
- zl10353_single_write(fe, 0xEA, 0x01);
- udelay(200);
- zl10353_single_write(fe, 0xEA, 0x00);
-
- zl10353_single_write(fe, AGC_TARGET, 0x28);
-
- if (c->transmission_mode != TRANSMISSION_MODE_AUTO)
- acq_ctl |= (1 << 0);
- if (c->guard_interval != GUARD_INTERVAL_AUTO)
- acq_ctl |= (1 << 1);
- zl10353_single_write(fe, ACQ_CTL, acq_ctl);
-
- switch (c->bandwidth_hz) {
- case 6000000:
- /* These are extrapolated from the 7 and 8MHz values */
- zl10353_single_write(fe, MCLK_RATIO, 0x97);
- zl10353_single_write(fe, 0x64, 0x34);
- zl10353_single_write(fe, 0xcc, 0xdd);
- break;
- case 7000000:
- zl10353_single_write(fe, MCLK_RATIO, 0x86);
- zl10353_single_write(fe, 0x64, 0x35);
- zl10353_single_write(fe, 0xcc, 0x73);
- break;
- default:
- c->bandwidth_hz = 8000000;
- /* fall though */
- case 8000000:
- zl10353_single_write(fe, MCLK_RATIO, 0x75);
- zl10353_single_write(fe, 0x64, 0x36);
- zl10353_single_write(fe, 0xcc, 0x73);
- }
-
- zl10353_calc_nominal_rate(fe, c->bandwidth_hz, &nominal_rate);
- zl10353_single_write(fe, TRL_NOMINAL_RATE_1, msb(nominal_rate));
- zl10353_single_write(fe, TRL_NOMINAL_RATE_0, lsb(nominal_rate));
- state->bandwidth = c->bandwidth_hz;
-
- zl10353_calc_input_freq(fe, &input_freq);
- zl10353_single_write(fe, INPUT_FREQ_1, msb(input_freq));
- zl10353_single_write(fe, INPUT_FREQ_0, lsb(input_freq));
-
- /* Hint at TPS settings */
- switch (c->code_rate_HP) {
- case FEC_2_3:
- tps |= (1 << 7);
- break;
- case FEC_3_4:
- tps |= (2 << 7);
- break;
- case FEC_5_6:
- tps |= (3 << 7);
- break;
- case FEC_7_8:
- tps |= (4 << 7);
- break;
- case FEC_1_2:
- case FEC_AUTO:
- break;
- default:
- return -EINVAL;
- }
-
- switch (c->code_rate_LP) {
- case FEC_2_3:
- tps |= (1 << 4);
- break;
- case FEC_3_4:
- tps |= (2 << 4);
- break;
- case FEC_5_6:
- tps |= (3 << 4);
- break;
- case FEC_7_8:
- tps |= (4 << 4);
- break;
- case FEC_1_2:
- case FEC_AUTO:
- break;
- case FEC_NONE:
- if (c->hierarchy == HIERARCHY_AUTO ||
- c->hierarchy == HIERARCHY_NONE)
- break;
- default:
- return -EINVAL;
- }
-
- switch (c->modulation) {
- case QPSK:
- break;
- case QAM_AUTO:
- case QAM_16:
- tps |= (1 << 13);
- break;
- case QAM_64:
- tps |= (2 << 13);
- break;
- default:
- return -EINVAL;
- }
-
- switch (c->transmission_mode) {
- case TRANSMISSION_MODE_2K:
- case TRANSMISSION_MODE_AUTO:
- break;
- case TRANSMISSION_MODE_8K:
- tps |= (1 << 0);
- break;
- default:
- return -EINVAL;
- }
-
- switch (c->guard_interval) {
- case GUARD_INTERVAL_1_32:
- case GUARD_INTERVAL_AUTO:
- break;
- case GUARD_INTERVAL_1_16:
- tps |= (1 << 2);
- break;
- case GUARD_INTERVAL_1_8:
- tps |= (2 << 2);
- break;
- case GUARD_INTERVAL_1_4:
- tps |= (3 << 2);
- break;
- default:
- return -EINVAL;
- }
-
- switch (c->hierarchy) {
- case HIERARCHY_AUTO:
- case HIERARCHY_NONE:
- break;
- case HIERARCHY_1:
- tps |= (1 << 10);
- break;
- case HIERARCHY_2:
- tps |= (2 << 10);
- break;
- case HIERARCHY_4:
- tps |= (3 << 10);
- break;
- default:
- return -EINVAL;
- }
-
- zl10353_single_write(fe, TPS_GIVEN_1, msb(tps));
- zl10353_single_write(fe, TPS_GIVEN_0, lsb(tps));
-
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
-
- /*
- * If there is no tuner attached to the secondary I2C bus, we call
- * set_params to program a potential tuner attached somewhere else.
- * Otherwise, we update the PLL registers via calc_regs.
- */
- if (state->config.no_tuner) {
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- }
- } else if (fe->ops.tuner_ops.calc_regs) {
- fe->ops.tuner_ops.calc_regs(fe, pllbuf + 1, 5);
- pllbuf[1] <<= 1;
- zl10353_write(fe, pllbuf, sizeof(pllbuf));
- }
-
- zl10353_single_write(fe, 0x5F, 0x13);
-
- /* If no attached tuner or invalid PLL registers, just start the FSM. */
- if (state->config.no_tuner || fe->ops.tuner_ops.calc_regs == NULL)
- zl10353_single_write(fe, FSM_GO, 0x01);
- else
- zl10353_single_write(fe, TUNER_GO, 0x01);
-
- return 0;
-}
-
-static int zl10353_get_parameters(struct dvb_frontend *fe)
-{
- struct dtv_frontend_properties *c = &fe->dtv_property_cache;
- struct zl10353_state *state = fe->demodulator_priv;
- int s6, s9;
- u16 tps;
- static const u8 tps_fec_to_api[8] = {
- FEC_1_2,
- FEC_2_3,
- FEC_3_4,
- FEC_5_6,
- FEC_7_8,
- FEC_AUTO,
- FEC_AUTO,
- FEC_AUTO
- };
-
- s6 = zl10353_read_register(state, STATUS_6);
- s9 = zl10353_read_register(state, STATUS_9);
- if (s6 < 0 || s9 < 0)
- return -EREMOTEIO;
- if ((s6 & (1 << 5)) == 0 || (s9 & (1 << 4)) == 0)
- return -EINVAL; /* no FE or TPS lock */
-
- tps = zl10353_read_register(state, TPS_RECEIVED_1) << 8 |
- zl10353_read_register(state, TPS_RECEIVED_0);
-
- c->code_rate_HP = tps_fec_to_api[(tps >> 7) & 7];
- c->code_rate_LP = tps_fec_to_api[(tps >> 4) & 7];
-
- switch ((tps >> 13) & 3) {
- case 0:
- c->modulation = QPSK;
- break;
- case 1:
- c->modulation = QAM_16;
- break;
- case 2:
- c->modulation = QAM_64;
- break;
- default:
- c->modulation = QAM_AUTO;
- break;
- }
-
- c->transmission_mode = (tps & 0x01) ? TRANSMISSION_MODE_8K :
- TRANSMISSION_MODE_2K;
-
- switch ((tps >> 2) & 3) {
- case 0:
- c->guard_interval = GUARD_INTERVAL_1_32;
- break;
- case 1:
- c->guard_interval = GUARD_INTERVAL_1_16;
- break;
- case 2:
- c->guard_interval = GUARD_INTERVAL_1_8;
- break;
- case 3:
- c->guard_interval = GUARD_INTERVAL_1_4;
- break;
- default:
- c->guard_interval = GUARD_INTERVAL_AUTO;
- break;
- }
-
- switch ((tps >> 10) & 7) {
- case 0:
- c->hierarchy = HIERARCHY_NONE;
- break;
- case 1:
- c->hierarchy = HIERARCHY_1;
- break;
- case 2:
- c->hierarchy = HIERARCHY_2;
- break;
- case 3:
- c->hierarchy = HIERARCHY_4;
- break;
- default:
- c->hierarchy = HIERARCHY_AUTO;
- break;
- }
-
- c->frequency = state->frequency;
- c->bandwidth_hz = state->bandwidth;
- c->inversion = INVERSION_AUTO;
-
- return 0;
-}
-
-static int zl10353_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- int s6, s7, s8;
-
- if ((s6 = zl10353_read_register(state, STATUS_6)) < 0)
- return -EREMOTEIO;
- if ((s7 = zl10353_read_register(state, STATUS_7)) < 0)
- return -EREMOTEIO;
- if ((s8 = zl10353_read_register(state, STATUS_8)) < 0)
- return -EREMOTEIO;
-
- *status = 0;
- if (s6 & (1 << 2))
- *status |= FE_HAS_CARRIER;
- if (s6 & (1 << 1))
- *status |= FE_HAS_VITERBI;
- if (s6 & (1 << 5))
- *status |= FE_HAS_LOCK;
- if (s7 & (1 << 4))
- *status |= FE_HAS_SYNC;
- if (s8 & (1 << 6))
- *status |= FE_HAS_SIGNAL;
-
- if ((*status & (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC)) !=
- (FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_SYNC))
- *status &= ~FE_HAS_LOCK;
-
- return 0;
-}
-
-static int zl10353_read_ber(struct dvb_frontend *fe, u32 *ber)
-{
- struct zl10353_state *state = fe->demodulator_priv;
-
- *ber = zl10353_read_register(state, RS_ERR_CNT_2) << 16 |
- zl10353_read_register(state, RS_ERR_CNT_1) << 8 |
- zl10353_read_register(state, RS_ERR_CNT_0);
-
- return 0;
-}
-
-static int zl10353_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
-{
- struct zl10353_state *state = fe->demodulator_priv;
-
- u16 signal = zl10353_read_register(state, AGC_GAIN_1) << 10 |
- zl10353_read_register(state, AGC_GAIN_0) << 2 | 3;
-
- *strength = ~signal;
-
- return 0;
-}
-
-static int zl10353_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u8 _snr;
-
- if (debug_regs)
- zl10353_dump_regs(fe);
-
- _snr = zl10353_read_register(state, SNR);
- *snr = 10 * _snr / 8;
-
- return 0;
-}
-
-static int zl10353_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u32 ubl = 0;
-
- ubl = zl10353_read_register(state, RS_UBC_1) << 8 |
- zl10353_read_register(state, RS_UBC_0);
-
- state->ucblocks += ubl;
- *ucblocks = state->ucblocks;
-
- return 0;
-}
-
-static int zl10353_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings
- *fe_tune_settings)
-{
- fe_tune_settings->min_delay_ms = 1000;
- fe_tune_settings->step_size = 0;
- fe_tune_settings->max_drift = 0;
-
- return 0;
-}
-
-static int zl10353_init(struct dvb_frontend *fe)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u8 zl10353_reset_attach[6] = { 0x50, 0x03, 0x64, 0x46, 0x15, 0x0F };
-
- if (debug_regs)
- zl10353_dump_regs(fe);
- if (state->config.parallel_ts)
- zl10353_reset_attach[2] &= ~0x20;
- if (state->config.clock_ctl_1)
- zl10353_reset_attach[3] = state->config.clock_ctl_1;
- if (state->config.pll_0)
- zl10353_reset_attach[4] = state->config.pll_0;
-
- /* Do a "hard" reset if not already done */
- if (zl10353_read_register(state, 0x50) != zl10353_reset_attach[1] ||
- zl10353_read_register(state, 0x51) != zl10353_reset_attach[2]) {
- zl10353_write(fe, zl10353_reset_attach,
- sizeof(zl10353_reset_attach));
- if (debug_regs)
- zl10353_dump_regs(fe);
- }
-
- return 0;
-}
-
-static int zl10353_i2c_gate_ctrl(struct dvb_frontend* fe, int enable)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- u8 val = 0x0a;
-
- if (state->config.disable_i2c_gate_ctrl) {
- /* No tuner attached to the internal I2C bus */
- /* If set enable I2C bridge, the main I2C bus stopped hardly */
- return 0;
- }
-
- if (enable)
- val |= 0x10;
-
- return zl10353_single_write(fe, 0x62, val);
-}
-
-static void zl10353_release(struct dvb_frontend *fe)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- kfree(state);
-}
-
-static struct dvb_frontend_ops zl10353_ops;
-
-struct dvb_frontend *zl10353_attach(const struct zl10353_config *config,
- struct i2c_adapter *i2c)
-{
- struct zl10353_state *state = NULL;
- int id;
-
- /* allocate memory for the internal state */
- state = kzalloc(sizeof(struct zl10353_state), GFP_KERNEL);
- if (state == NULL)
- goto error;
-
- /* setup the state */
- state->i2c = i2c;
- memcpy(&state->config, config, sizeof(struct zl10353_config));
-
- /* check if the demod is there */
- id = zl10353_read_register(state, CHIP_ID);
- if ((id != ID_ZL10353) && (id != ID_CE6230) && (id != ID_CE6231))
- goto error;
-
- /* create dvb_frontend */
- memcpy(&state->frontend.ops, &zl10353_ops, sizeof(struct dvb_frontend_ops));
- state->frontend.demodulator_priv = state;
-
- return &state->frontend;
-error:
- kfree(state);
- return NULL;
-}
-
-static struct dvb_frontend_ops zl10353_ops = {
- .delsys = { SYS_DVBT },
- .info = {
- .name = "Zarlink ZL10353 DVB-T",
- .frequency_min = 174000000,
- .frequency_max = 862000000,
- .frequency_stepsize = 166667,
- .frequency_tolerance = 0,
- .caps = FE_CAN_FEC_1_2 | FE_CAN_FEC_2_3 |
- FE_CAN_FEC_3_4 | FE_CAN_FEC_5_6 | FE_CAN_FEC_7_8 |
- FE_CAN_FEC_AUTO |
- FE_CAN_QPSK | FE_CAN_QAM_16 | FE_CAN_QAM_64 | FE_CAN_QAM_AUTO |
- FE_CAN_TRANSMISSION_MODE_AUTO | FE_CAN_GUARD_INTERVAL_AUTO |
- FE_CAN_HIERARCHY_AUTO | FE_CAN_RECOVER |
- FE_CAN_MUTE_TS
- },
-
- .release = zl10353_release,
-
- .init = zl10353_init,
- .sleep = zl10353_sleep,
- .i2c_gate_ctrl = zl10353_i2c_gate_ctrl,
- .write = zl10353_write,
-
- .set_frontend = zl10353_set_parameters,
- .get_frontend = zl10353_get_parameters,
- .get_tune_settings = zl10353_get_tune_settings,
-
- .read_status = zl10353_read_status,
- .read_ber = zl10353_read_ber,
- .read_signal_strength = zl10353_read_signal_strength,
- .read_snr = zl10353_read_snr,
- .read_ucblocks = zl10353_read_ucblocks,
-};
-
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "Turn on/off frontend debugging (default:off).");
-
-module_param(debug_regs, int, 0644);
-MODULE_PARM_DESC(debug_regs, "Turn on/off frontend register dumps (default:off).");
-
-MODULE_DESCRIPTION("Zarlink ZL10353 DVB-T demodulator driver");
-MODULE_AUTHOR("Chris Pascoe");
-MODULE_LICENSE("GPL");
-
-EXPORT_SYMBOL(zl10353_attach);
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-01 00:50:23 +0000