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path: root/drivers/media/dvb/frontends/zl10353.c
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Diffstat (limited to 'drivers/media/dvb/frontends/zl10353.c')
-rw-r--r--drivers/media/dvb/frontends/zl10353.c333
1 files changed, 0 insertions, 333 deletions
diff --git a/drivers/media/dvb/frontends/zl10353.c b/drivers/media/dvb/frontends/zl10353.c
deleted file mode 100644
index 2b95e8b6cd3..00000000000
--- a/drivers/media/dvb/frontends/zl10353.c
+++ /dev/null
@@ -1,333 +0,0 @@
-/*
- * Driver for Zarlink DVB-T ZL10353 demodulator
- *
- * Copyright (C) 2006 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/moduleparam.h>
-#include <linux/init.h>
-#include <linux/delay.h>
-#include <linux/string.h>
-#include <linux/slab.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;
-};
-
-static int debug_regs = 0;
-
-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;
-}
-
-int zl10353_write(struct dvb_frontend *fe, 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",
- __FUNCTION__, reg, ret);
- return ret;
- }
-
- return b1[0];
-}
-
-static void zl10353_dump_regs(struct dvb_frontend *fe)
-{
- struct zl10353_state *state = fe->demodulator_priv;
- char buf[52], buf2[4];
- int ret;
- u8 reg;
-
- /* Dump all registers. */
- for (reg = 0; ; reg++) {
- if (reg % 16 == 0) {
- if (reg)
- printk(KERN_DEBUG "%s\n", buf);
- sprintf(buf, "%02x: ", reg);
- }
- ret = zl10353_read_register(state, reg);
- if (ret >= 0)
- sprintf(buf2, "%02x ", (u8)ret);
- else
- strcpy(buf2, "-- ");
- strcat(buf, buf2);
- if (reg == 0xff)
- break;
- }
- printk(KERN_DEBUG "%s\n", buf);
-}
-
-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 dvb_frontend_parameters *param)
-{
- struct zl10353_state *state = fe->demodulator_priv;
-
- u8 pllbuf[6] = { 0x67 };
-
- /* These settings set "auto-everything" and start the FSM. */
- zl10353_single_write(fe, 0x55, 0x80);
- udelay(200);
- zl10353_single_write(fe, 0xEA, 0x01);
- udelay(200);
- zl10353_single_write(fe, 0xEA, 0x00);
-
- zl10353_single_write(fe, 0x56, 0x28);
- zl10353_single_write(fe, 0x89, 0x20);
- zl10353_single_write(fe, 0x5E, 0x00);
- zl10353_single_write(fe, 0x65, 0x5A);
- zl10353_single_write(fe, 0x66, 0xE9);
- zl10353_single_write(fe, 0x62, 0x0A);
-
- // if there is no attached secondary tuner, we call set_params to program
- // a potential tuner attached somewhere else
- if (state->config.no_tuner) {
- if (fe->ops.tuner_ops.set_params) {
- fe->ops.tuner_ops.set_params(fe, param);
- if (fe->ops.i2c_gate_ctrl) fe->ops.i2c_gate_ctrl(fe, 0);
- }
- }
-
- // if pllbuf is defined, retrieve the settings
- if (fe->ops.tuner_ops.calc_regs) {
- fe->ops.tuner_ops.calc_regs(fe, param, pllbuf+1, 5);
- pllbuf[1] <<= 1;
- } else {
- // fake pllbuf settings
- pllbuf[1] = 0x61 << 1;
- pllbuf[2] = 0;
- pllbuf[3] = 0;
- pllbuf[3] = 0;
- pllbuf[4] = 0;
- }
-
- // there is no call to _just_ start decoding, so we send the pllbuf anyway
- // even if there isn't a PLL attached to the secondary bus
- zl10353_write(fe, pllbuf, sizeof(pllbuf));
-
- zl10353_single_write(fe, 0x70, 0x01);
- udelay(250);
- zl10353_single_write(fe, 0xE4, 0x00);
- zl10353_single_write(fe, 0xE5, 0x2A);
- zl10353_single_write(fe, 0xE9, 0x02);
- zl10353_single_write(fe, 0xE7, 0x40);
- zl10353_single_write(fe, 0xE8, 0x10);
-
- 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_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 = (_snr << 8) | _snr;
-
- 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 };
- int rc = 0;
-
- if (debug_regs)
- zl10353_dump_regs(fe);
-
- /* Do a "hard" reset if not already done */
- if (zl10353_read_register(state, 0x50) != 0x03) {
- rc = zl10353_write(fe, zl10353_reset_attach,
- sizeof(zl10353_reset_attach));
- if (debug_regs)
- zl10353_dump_regs(fe);
- }
-
- return 0;
-}
-
-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;
-
- /* 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 */
- if (zl10353_read_register(state, CHIP_ID) != ID_ZL10353)
- 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 = {
-
- .info = {
- .name = "Zarlink ZL10353 DVB-T",
- .type = FE_OFDM,
- .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,
-
- .set_frontend = zl10353_set_parameters,
- .get_tune_settings = zl10353_get_tune_settings,
-
- .read_status = zl10353_read_status,
- .read_snr = zl10353_read_snr,
-};
-
-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);
-EXPORT_SYMBOL(zl10353_write);
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