summaryrefslogtreecommitdiff
path: root/drivers/media/dvb/frontends/lg2160.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/media/dvb/frontends/lg2160.c')
-rw-r--r--drivers/media/dvb/frontends/lg2160.c1468
1 files changed, 0 insertions, 1468 deletions
diff --git a/drivers/media/dvb/frontends/lg2160.c b/drivers/media/dvb/frontends/lg2160.c
deleted file mode 100644
index cc11260e99df..000000000000
--- a/drivers/media/dvb/frontends/lg2160.c
+++ /dev/null
@@ -1,1468 +0,0 @@
-/*
- * Support for LG2160 - ATSC/MH
- *
- * Copyright (C) 2010 Michael Krufky <mkrufky@linuxtv.org>
- *
- * 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/jiffies.h>
-#include <linux/dvb/frontend.h>
-#include "lg2160.h"
-
-static int debug;
-module_param(debug, int, 0644);
-MODULE_PARM_DESC(debug, "set debug level (info=1, reg=2 (or-able))");
-
-#define DBG_INFO 1
-#define DBG_REG 2
-
-#define lg_printk(kern, fmt, arg...) \
- printk(kern "%s: " fmt, __func__, ##arg)
-
-#define lg_info(fmt, arg...) printk(KERN_INFO "lg2160: " fmt, ##arg)
-#define lg_warn(fmt, arg...) lg_printk(KERN_WARNING, fmt, ##arg)
-#define lg_err(fmt, arg...) lg_printk(KERN_ERR, fmt, ##arg)
-#define lg_dbg(fmt, arg...) if (debug & DBG_INFO) \
- lg_printk(KERN_DEBUG, fmt, ##arg)
-#define lg_reg(fmt, arg...) if (debug & DBG_REG) \
- lg_printk(KERN_DEBUG, fmt, ##arg)
-
-#define lg_fail(ret) \
-({ \
- int __ret; \
- __ret = (ret < 0); \
- if (__ret) \
- lg_err("error %d on line %d\n", ret, __LINE__); \
- __ret; \
-})
-
-struct lg216x_state {
- struct i2c_adapter *i2c_adap;
- const struct lg2160_config *cfg;
-
- struct dvb_frontend frontend;
-
- u32 current_frequency;
- u8 parade_id;
- u8 fic_ver;
- unsigned int last_reset;
-};
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_write_reg(struct lg216x_state *state, u16 reg, u8 val)
-{
- int ret;
- u8 buf[] = { reg >> 8, reg & 0xff, val };
- struct i2c_msg msg = {
- .addr = state->cfg->i2c_addr, .flags = 0,
- .buf = buf, .len = 3,
- };
-
- lg_reg("reg: 0x%04x, val: 0x%02x\n", reg, val);
-
- ret = i2c_transfer(state->i2c_adap, &msg, 1);
-
- if (ret != 1) {
- lg_err("error (addr %02x %02x <- %02x, err = %i)\n",
- msg.buf[0], msg.buf[1], msg.buf[2], ret);
- if (ret < 0)
- return ret;
- else
- return -EREMOTEIO;
- }
- return 0;
-}
-
-static int lg216x_read_reg(struct lg216x_state *state, u16 reg, u8 *val)
-{
- int ret;
- u8 reg_buf[] = { reg >> 8, reg & 0xff };
- struct i2c_msg msg[] = {
- { .addr = state->cfg->i2c_addr,
- .flags = 0, .buf = reg_buf, .len = 2 },
- { .addr = state->cfg->i2c_addr,
- .flags = I2C_M_RD, .buf = val, .len = 1 },
- };
-
- lg_reg("reg: 0x%04x\n", reg);
-
- ret = i2c_transfer(state->i2c_adap, msg, 2);
-
- if (ret != 2) {
- lg_err("error (addr %02x reg %04x error (ret == %i)\n",
- state->cfg->i2c_addr, reg, ret);
- if (ret < 0)
- return ret;
- else
- return -EREMOTEIO;
- }
- return 0;
-}
-
-struct lg216x_reg {
- u16 reg;
- u8 val;
-};
-
-static int lg216x_write_regs(struct lg216x_state *state,
- struct lg216x_reg *regs, int len)
-{
- int i, ret;
-
- lg_reg("writing %d registers...\n", len);
-
- for (i = 0; i < len; i++) {
- ret = lg216x_write_reg(state, regs[i].reg, regs[i].val);
- if (lg_fail(ret))
- return ret;
- }
- return 0;
-}
-
-static int lg216x_set_reg_bit(struct lg216x_state *state,
- u16 reg, int bit, int onoff)
-{
- u8 val;
- int ret;
-
- lg_reg("reg: 0x%04x, bit: %d, level: %d\n", reg, bit, onoff);
-
- ret = lg216x_read_reg(state, reg, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= ~(1 << bit);
- val |= (onoff & 1) << bit;
-
- ret = lg216x_write_reg(state, reg, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_i2c_gate_ctrl(struct dvb_frontend *fe, int enable)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- int ret;
-
- if (state->cfg->deny_i2c_rptr)
- return 0;
-
- lg_dbg("(%d)\n", enable);
-
- ret = lg216x_set_reg_bit(state, 0x0000, 0, enable ? 0 : 1);
-
- msleep(1);
-
- return ret;
-}
-
-static int lg216x_soft_reset(struct lg216x_state *state)
-{
- int ret;
-
- lg_dbg("\n");
-
- ret = lg216x_write_reg(state, 0x0002, 0x00);
- if (lg_fail(ret))
- goto fail;
-
- msleep(20);
- ret = lg216x_write_reg(state, 0x0002, 0x01);
- if (lg_fail(ret))
- goto fail;
-
- state->last_reset = jiffies_to_msecs(jiffies);
-fail:
- return ret;
-}
-
-static int lg216x_initialize(struct lg216x_state *state)
-{
- int ret;
-
- static struct lg216x_reg lg2160_init[] = {
-#if 0
- { .reg = 0x0015, .val = 0xe6 },
-#else
- { .reg = 0x0015, .val = 0xf7 },
- { .reg = 0x001b, .val = 0x52 },
- { .reg = 0x0208, .val = 0x00 },
- { .reg = 0x0209, .val = 0x82 },
- { .reg = 0x0210, .val = 0xf9 },
- { .reg = 0x020a, .val = 0x00 },
- { .reg = 0x020b, .val = 0x82 },
- { .reg = 0x020d, .val = 0x28 },
- { .reg = 0x020f, .val = 0x14 },
-#endif
- };
-
- static struct lg216x_reg lg2161_init[] = {
- { .reg = 0x0000, .val = 0x41 },
- { .reg = 0x0001, .val = 0xfb },
- { .reg = 0x0216, .val = 0x00 },
- { .reg = 0x0219, .val = 0x00 },
- { .reg = 0x021b, .val = 0x55 },
- { .reg = 0x0606, .val = 0x0a },
- };
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_write_regs(state,
- lg2160_init, ARRAY_SIZE(lg2160_init));
- break;
- case LG2161:
- ret = lg216x_write_regs(state,
- lg2161_init, ARRAY_SIZE(lg2161_init));
- break;
- default:
- ret = -EINVAL;
- break;
- }
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_soft_reset(state);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_set_if(struct lg216x_state *state)
-{
- u8 val;
- int ret;
-
- lg_dbg("%d KHz\n", state->cfg->if_khz);
-
- ret = lg216x_read_reg(state, 0x0132, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xfb;
- val |= (0 == state->cfg->if_khz) ? 0x04 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0132, val);
- lg_fail(ret);
-
- /* if NOT zero IF, 6 MHz is the default */
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg2160_agc_fix(struct lg216x_state *state,
- int if_agc_fix, int rf_agc_fix)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0100, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xf3;
- val |= (if_agc_fix) ? 0x08 : 0x00;
- val |= (rf_agc_fix) ? 0x04 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0100, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-#if 0
-static int lg2160_agc_freeze(struct lg216x_state *state,
- int if_agc_freeze, int rf_agc_freeze)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0100, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xcf;
- val |= (if_agc_freeze) ? 0x20 : 0x00;
- val |= (rf_agc_freeze) ? 0x10 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0100, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-#endif
-
-static int lg2160_agc_polarity(struct lg216x_state *state,
- int if_agc_polarity, int rf_agc_polarity)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0100, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xfc;
- val |= (if_agc_polarity) ? 0x02 : 0x00;
- val |= (rf_agc_polarity) ? 0x01 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0100, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-static int lg2160_tuner_pwr_save_polarity(struct lg216x_state *state,
- int polarity)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0008, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xfe;
- val |= (polarity) ? 0x01 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0008, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-static int lg2160_spectrum_polarity(struct lg216x_state *state,
- int inverted)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0132, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xfd;
- val |= (inverted) ? 0x02 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0132, val);
- lg_fail(ret);
-fail:
- return lg216x_soft_reset(state);
-}
-
-static int lg2160_tuner_pwr_save(struct lg216x_state *state, int onoff)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0007, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xbf;
- val |= (onoff) ? 0x40 : 0x00;
-
- ret = lg216x_write_reg(state, 0x0007, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-static int lg216x_set_parade(struct lg216x_state *state, int id)
-{
- int ret;
-
- ret = lg216x_write_reg(state, 0x013e, id & 0x7f);
- if (lg_fail(ret))
- goto fail;
-
- state->parade_id = id & 0x7f;
-fail:
- return ret;
-}
-
-static int lg216x_set_ensemble(struct lg216x_state *state, int id)
-{
- int ret;
- u16 reg;
- u8 val;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- reg = 0x0400;
- break;
- case LG2161:
- default:
- reg = 0x0500;
- break;
- }
-
- ret = lg216x_read_reg(state, reg, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xfe;
- val |= (id) ? 0x01 : 0x00;
-
- ret = lg216x_write_reg(state, reg, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-static int lg2160_set_spi_clock(struct lg216x_state *state)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0014, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= 0xf3;
- val |= (state->cfg->spi_clock << 2);
-
- ret = lg216x_write_reg(state, 0x0014, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-static int lg2161_set_output_interface(struct lg216x_state *state)
-{
- u8 val;
- int ret;
-
- ret = lg216x_read_reg(state, 0x0014, &val);
- if (lg_fail(ret))
- goto fail;
-
- val &= ~0x07;
- val |= state->cfg->output_if; /* FIXME: needs sanity check */
-
- ret = lg216x_write_reg(state, 0x0014, val);
- lg_fail(ret);
-fail:
- return ret;
-}
-
-static int lg216x_enable_fic(struct lg216x_state *state, int onoff)
-{
- int ret;
-
- ret = lg216x_write_reg(state, 0x0017, 0x23);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_write_reg(state, 0x0016, 0xfc);
- if (lg_fail(ret))
- goto fail;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_write_reg(state, 0x0016,
- 0xfc | ((onoff) ? 0x02 : 0x00));
- break;
- case LG2161:
- ret = lg216x_write_reg(state, 0x0016, (onoff) ? 0x10 : 0x00);
- break;
- }
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_initialize(state);
- if (lg_fail(ret))
- goto fail;
-
- if (onoff) {
- ret = lg216x_write_reg(state, 0x0017, 0x03);
- lg_fail(ret);
- }
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_get_fic_version(struct lg216x_state *state, u8 *ficver)
-{
- u8 val;
- int ret;
-
- *ficver = 0xff; /* invalid value */
-
- ret = lg216x_read_reg(state, 0x0128, &val);
- if (lg_fail(ret))
- goto fail;
-
- *ficver = (val >> 3) & 0x1f;
-fail:
- return ret;
-}
-
-#if 0
-static int lg2160_get_parade_id(struct lg216x_state *state, u8 *id)
-{
- u8 val;
- int ret;
-
- *id = 0xff; /* invalid value */
-
- ret = lg216x_read_reg(state, 0x0123, &val);
- if (lg_fail(ret))
- goto fail;
-
- *id = val & 0x7f;
-fail:
- return ret;
-}
-#endif
-
-static int lg216x_get_nog(struct lg216x_state *state, u8 *nog)
-{
- u8 val;
- int ret;
-
- *nog = 0xff; /* invalid value */
-
- ret = lg216x_read_reg(state, 0x0124, &val);
- if (lg_fail(ret))
- goto fail;
-
- *nog = ((val >> 4) & 0x07) + 1;
-fail:
- return ret;
-}
-
-static int lg216x_get_tnog(struct lg216x_state *state, u8 *tnog)
-{
- u8 val;
- int ret;
-
- *tnog = 0xff; /* invalid value */
-
- ret = lg216x_read_reg(state, 0x0125, &val);
- if (lg_fail(ret))
- goto fail;
-
- *tnog = val & 0x1f;
-fail:
- return ret;
-}
-
-static int lg216x_get_sgn(struct lg216x_state *state, u8 *sgn)
-{
- u8 val;
- int ret;
-
- *sgn = 0xff; /* invalid value */
-
- ret = lg216x_read_reg(state, 0x0124, &val);
- if (lg_fail(ret))
- goto fail;
-
- *sgn = val & 0x0f;
-fail:
- return ret;
-}
-
-static int lg216x_get_prc(struct lg216x_state *state, u8 *prc)
-{
- u8 val;
- int ret;
-
- *prc = 0xff; /* invalid value */
-
- ret = lg216x_read_reg(state, 0x0125, &val);
- if (lg_fail(ret))
- goto fail;
-
- *prc = ((val >> 5) & 0x07) + 1;
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_get_rs_frame_mode(struct lg216x_state *state,
- enum atscmh_rs_frame_mode *rs_framemode)
-{
- u8 val;
- int ret;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_read_reg(state, 0x0410, &val);
- break;
- case LG2161:
- ret = lg216x_read_reg(state, 0x0513, &val);
- break;
- default:
- ret = -EINVAL;
- }
- if (lg_fail(ret))
- goto fail;
-
- switch ((val >> 4) & 0x03) {
-#if 1
- default:
-#endif
- case 0x00:
- *rs_framemode = ATSCMH_RSFRAME_PRI_ONLY;
- break;
- case 0x01:
- *rs_framemode = ATSCMH_RSFRAME_PRI_SEC;
- break;
-#if 0
- default:
- *rs_framemode = ATSCMH_RSFRAME_RES;
- break;
-#endif
- }
-fail:
- return ret;
-}
-
-static
-int lg216x_get_rs_frame_ensemble(struct lg216x_state *state,
- enum atscmh_rs_frame_ensemble *rs_frame_ens)
-{
- u8 val;
- int ret;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_read_reg(state, 0x0400, &val);
- break;
- case LG2161:
- ret = lg216x_read_reg(state, 0x0500, &val);
- break;
- default:
- ret = -EINVAL;
- }
- if (lg_fail(ret))
- goto fail;
-
- val &= 0x01;
- *rs_frame_ens = (enum atscmh_rs_frame_ensemble) val;
-fail:
- return ret;
-}
-
-static int lg216x_get_rs_code_mode(struct lg216x_state *state,
- enum atscmh_rs_code_mode *rs_code_pri,
- enum atscmh_rs_code_mode *rs_code_sec)
-{
- u8 val;
- int ret;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_read_reg(state, 0x0410, &val);
- break;
- case LG2161:
- ret = lg216x_read_reg(state, 0x0513, &val);
- break;
- default:
- ret = -EINVAL;
- }
- if (lg_fail(ret))
- goto fail;
-
- *rs_code_pri = (enum atscmh_rs_code_mode) ((val >> 2) & 0x03);
- *rs_code_sec = (enum atscmh_rs_code_mode) (val & 0x03);
-fail:
- return ret;
-}
-
-static int lg216x_get_sccc_block_mode(struct lg216x_state *state,
- enum atscmh_sccc_block_mode *sccc_block)
-{
- u8 val;
- int ret;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_read_reg(state, 0x0315, &val);
- break;
- case LG2161:
- ret = lg216x_read_reg(state, 0x0511, &val);
- break;
- default:
- ret = -EINVAL;
- }
- if (lg_fail(ret))
- goto fail;
-
- switch (val & 0x03) {
- case 0x00:
- *sccc_block = ATSCMH_SCCC_BLK_SEP;
- break;
- case 0x01:
- *sccc_block = ATSCMH_SCCC_BLK_COMB;
- break;
- default:
- *sccc_block = ATSCMH_SCCC_BLK_RES;
- break;
- }
-fail:
- return ret;
-}
-
-static int lg216x_get_sccc_code_mode(struct lg216x_state *state,
- enum atscmh_sccc_code_mode *mode_a,
- enum atscmh_sccc_code_mode *mode_b,
- enum atscmh_sccc_code_mode *mode_c,
- enum atscmh_sccc_code_mode *mode_d)
-{
- u8 val;
- int ret;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_read_reg(state, 0x0316, &val);
- break;
- case LG2161:
- ret = lg216x_read_reg(state, 0x0512, &val);
- break;
- default:
- ret = -EINVAL;
- }
- if (lg_fail(ret))
- goto fail;
-
- switch ((val >> 6) & 0x03) {
- case 0x00:
- *mode_a = ATSCMH_SCCC_CODE_HLF;
- break;
- case 0x01:
- *mode_a = ATSCMH_SCCC_CODE_QTR;
- break;
- default:
- *mode_a = ATSCMH_SCCC_CODE_RES;
- break;
- }
-
- switch ((val >> 4) & 0x03) {
- case 0x00:
- *mode_b = ATSCMH_SCCC_CODE_HLF;
- break;
- case 0x01:
- *mode_b = ATSCMH_SCCC_CODE_QTR;
- break;
- default:
- *mode_b = ATSCMH_SCCC_CODE_RES;
- break;
- }
-
- switch ((val >> 2) & 0x03) {
- case 0x00:
- *mode_c = ATSCMH_SCCC_CODE_HLF;
- break;
- case 0x01:
- *mode_c = ATSCMH_SCCC_CODE_QTR;
- break;
- default:
- *mode_c = ATSCMH_SCCC_CODE_RES;
- break;
- }
-
- switch (val & 0x03) {
- case 0x00:
- *mode_d = ATSCMH_SCCC_CODE_HLF;
- break;
- case 0x01:
- *mode_d = ATSCMH_SCCC_CODE_QTR;
- break;
- default:
- *mode_d = ATSCMH_SCCC_CODE_RES;
- break;
- }
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-#if 0
-static int lg216x_read_fic_err_count(struct lg216x_state *state, u8 *err)
-{
- u8 fic_err;
- int ret;
-
- *err = 0;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg216x_read_reg(state, 0x0012, &fic_err);
- break;
- case LG2161:
- ret = lg216x_read_reg(state, 0x001e, &fic_err);
- break;
- }
- if (lg_fail(ret))
- goto fail;
-
- *err = fic_err;
-fail:
- return ret;
-}
-
-static int lg2160_read_crc_err_count(struct lg216x_state *state, u16 *err)
-{
- u8 crc_err1, crc_err2;
- int ret;
-
- *err = 0;
-
- ret = lg216x_read_reg(state, 0x0411, &crc_err1);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_read_reg(state, 0x0412, &crc_err2);
- if (lg_fail(ret))
- goto fail;
-
- *err = (u16)(((crc_err2 & 0x0f) << 8) | crc_err1);
-fail:
- return ret;
-}
-
-static int lg2161_read_crc_err_count(struct lg216x_state *state, u16 *err)
-{
- u8 crc_err;
- int ret;
-
- *err = 0;
-
- ret = lg216x_read_reg(state, 0x0612, &crc_err);
- if (lg_fail(ret))
- goto fail;
-
- *err = (u16)crc_err;
-fail:
- return ret;
-}
-
-static int lg216x_read_crc_err_count(struct lg216x_state *state, u16 *err)
-{
- int ret;
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg2160_read_crc_err_count(state, err);
- break;
- case LG2161:
- ret = lg2161_read_crc_err_count(state, err);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-
-static int lg2160_read_rs_err_count(struct lg216x_state *state, u16 *err)
-{
- u8 rs_err1, rs_err2;
- int ret;
-
- *err = 0;
-
- ret = lg216x_read_reg(state, 0x0413, &rs_err1);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_read_reg(state, 0x0414, &rs_err2);
- if (lg_fail(ret))
- goto fail;
-
- *err = (u16)(((rs_err2 & 0x0f) << 8) | rs_err1);
-fail:
- return ret;
-}
-
-static int lg2161_read_rs_err_count(struct lg216x_state *state, u16 *err)
-{
- u8 rs_err1, rs_err2;
- int ret;
-
- *err = 0;
-
- ret = lg216x_read_reg(state, 0x0613, &rs_err1);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_read_reg(state, 0x0614, &rs_err2);
- if (lg_fail(ret))
- goto fail;
-
- *err = (u16)((rs_err1 << 8) | rs_err2);
-fail:
- return ret;
-}
-
-static int lg216x_read_rs_err_count(struct lg216x_state *state, u16 *err)
-{
- int ret;
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg2160_read_rs_err_count(state, err);
- break;
- case LG2161:
- ret = lg2161_read_rs_err_count(state, err);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-}
-#endif
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_get_frontend(struct dvb_frontend *fe)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- int ret;
-
- lg_dbg("\n");
-
- fe->dtv_property_cache.modulation = VSB_8;
- fe->dtv_property_cache.frequency = state->current_frequency;
- fe->dtv_property_cache.delivery_system = SYS_ATSCMH;
-
- ret = lg216x_get_fic_version(state,
- &fe->dtv_property_cache.atscmh_fic_ver);
- if (lg_fail(ret))
- goto fail;
- if (state->fic_ver != fe->dtv_property_cache.atscmh_fic_ver) {
- state->fic_ver = fe->dtv_property_cache.atscmh_fic_ver;
-
-#if 0
- ret = lg2160_get_parade_id(state,
- &fe->dtv_property_cache.atscmh_parade_id);
- if (lg_fail(ret))
- goto fail;
-/* #else */
- fe->dtv_property_cache.atscmh_parade_id = state->parade_id;
-#endif
- ret = lg216x_get_nog(state,
- &fe->dtv_property_cache.atscmh_nog);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_tnog(state,
- &fe->dtv_property_cache.atscmh_tnog);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_sgn(state,
- &fe->dtv_property_cache.atscmh_sgn);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_prc(state,
- &fe->dtv_property_cache.atscmh_prc);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_get_rs_frame_mode(state,
- (enum atscmh_rs_frame_mode *)
- &fe->dtv_property_cache.atscmh_rs_frame_mode);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_rs_frame_ensemble(state,
- (enum atscmh_rs_frame_ensemble *)
- &fe->dtv_property_cache.atscmh_rs_frame_ensemble);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_rs_code_mode(state,
- (enum atscmh_rs_code_mode *)
- &fe->dtv_property_cache.atscmh_rs_code_mode_pri,
- (enum atscmh_rs_code_mode *)
- &fe->dtv_property_cache.atscmh_rs_code_mode_sec);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_sccc_block_mode(state,
- (enum atscmh_sccc_block_mode *)
- &fe->dtv_property_cache.atscmh_sccc_block_mode);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_get_sccc_code_mode(state,
- (enum atscmh_sccc_code_mode *)
- &fe->dtv_property_cache.atscmh_sccc_code_mode_a,
- (enum atscmh_sccc_code_mode *)
- &fe->dtv_property_cache.atscmh_sccc_code_mode_b,
- (enum atscmh_sccc_code_mode *)
- &fe->dtv_property_cache.atscmh_sccc_code_mode_c,
- (enum atscmh_sccc_code_mode *)
- &fe->dtv_property_cache.atscmh_sccc_code_mode_d);
- if (lg_fail(ret))
- goto fail;
- }
-#if 0
- ret = lg216x_read_fic_err_count(state,
- (u8 *)&fe->dtv_property_cache.atscmh_fic_err);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_read_crc_err_count(state,
- &fe->dtv_property_cache.atscmh_crc_err);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_read_rs_err_count(state,
- &fe->dtv_property_cache.atscmh_rs_err);
- if (lg_fail(ret))
- goto fail;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- if (((fe->dtv_property_cache.atscmh_rs_err >= 240) &&
- (fe->dtv_property_cache.atscmh_crc_err >= 240)) &&
- ((jiffies_to_msecs(jiffies) - state->last_reset) > 6000))
- ret = lg216x_soft_reset(state);
- break;
- case LG2161:
- /* no fix needed here (as far as we know) */
- ret = 0;
- break;
- }
- lg_fail(ret);
-#endif
-fail:
- return ret;
-}
-
-static int lg216x_get_property(struct dvb_frontend *fe,
- struct dtv_property *tvp)
-{
- return (DTV_ATSCMH_FIC_VER == tvp->cmd) ?
- lg216x_get_frontend(fe) : 0;
-}
-
-
-static int lg2160_set_frontend(struct dvb_frontend *fe)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- int ret;
-
- lg_dbg("(%d)\n", fe->dtv_property_cache.frequency);
-
- if (fe->ops.tuner_ops.set_params) {
- ret = fe->ops.tuner_ops.set_params(fe);
- if (fe->ops.i2c_gate_ctrl)
- fe->ops.i2c_gate_ctrl(fe, 0);
- if (lg_fail(ret))
- goto fail;
- state->current_frequency = fe->dtv_property_cache.frequency;
- }
-
- ret = lg2160_agc_fix(state, 0, 0);
- if (lg_fail(ret))
- goto fail;
- ret = lg2160_agc_polarity(state, 0, 0);
- if (lg_fail(ret))
- goto fail;
- ret = lg2160_tuner_pwr_save_polarity(state, 1);
- if (lg_fail(ret))
- goto fail;
- ret = lg216x_set_if(state);
- if (lg_fail(ret))
- goto fail;
- ret = lg2160_spectrum_polarity(state, state->cfg->spectral_inversion);
- if (lg_fail(ret))
- goto fail;
-
- /* be tuned before this point */
- ret = lg216x_soft_reset(state);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg2160_tuner_pwr_save(state, 0);
- if (lg_fail(ret))
- goto fail;
-
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg2160_set_spi_clock(state);
- if (lg_fail(ret))
- goto fail;
- break;
- case LG2161:
- ret = lg2161_set_output_interface(state);
- if (lg_fail(ret))
- goto fail;
- break;
- }
-
- ret = lg216x_set_parade(state, fe->dtv_property_cache.atscmh_parade_id);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_set_ensemble(state,
- fe->dtv_property_cache.atscmh_rs_frame_ensemble);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_initialize(state);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_enable_fic(state, 1);
- lg_fail(ret);
-
- lg216x_get_frontend(fe);
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg2160_read_lock_status(struct lg216x_state *state,
- int *acq_lock, int *sync_lock)
-{
- u8 val;
- int ret;
-
- *acq_lock = 0;
- *sync_lock = 0;
-
- ret = lg216x_read_reg(state, 0x011b, &val);
- if (lg_fail(ret))
- goto fail;
-
- *sync_lock = (val & 0x20) ? 0 : 1;
- *acq_lock = (val & 0x40) ? 0 : 1;
-fail:
- return ret;
-}
-
-#ifdef USE_LG2161_LOCK_BITS
-static int lg2161_read_lock_status(struct lg216x_state *state,
- int *acq_lock, int *sync_lock)
-{
- u8 val;
- int ret;
-
- *acq_lock = 0;
- *sync_lock = 0;
-
- ret = lg216x_read_reg(state, 0x0304, &val);
- if (lg_fail(ret))
- goto fail;
-
- *sync_lock = (val & 0x80) ? 0 : 1;
-
- ret = lg216x_read_reg(state, 0x011b, &val);
- if (lg_fail(ret))
- goto fail;
-
- *acq_lock = (val & 0x40) ? 0 : 1;
-fail:
- return ret;
-}
-#endif
-
-static int lg216x_read_lock_status(struct lg216x_state *state,
- int *acq_lock, int *sync_lock)
-{
-#ifdef USE_LG2161_LOCK_BITS
- int ret;
- switch (state->cfg->lg_chip) {
- case LG2160:
- ret = lg2160_read_lock_status(state, acq_lock, sync_lock);
- break;
- case LG2161:
- ret = lg2161_read_lock_status(state, acq_lock, sync_lock);
- break;
- default:
- ret = -EINVAL;
- break;
- }
- return ret;
-#else
- return lg2160_read_lock_status(state, acq_lock, sync_lock);
-#endif
-}
-
-static int lg216x_read_status(struct dvb_frontend *fe, fe_status_t *status)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- int ret, acq_lock, sync_lock;
-
- *status = 0;
-
- ret = lg216x_read_lock_status(state, &acq_lock, &sync_lock);
- if (lg_fail(ret))
- goto fail;
-
- lg_dbg("%s%s\n",
- acq_lock ? "SIGNALEXIST " : "",
- sync_lock ? "SYNCLOCK" : "");
-
- if (acq_lock)
- *status |= FE_HAS_SIGNAL;
- if (sync_lock)
- *status |= FE_HAS_SYNC;
-
- if (*status)
- *status |= FE_HAS_CARRIER | FE_HAS_VITERBI | FE_HAS_LOCK;
-
-fail:
- return ret;
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg2160_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- u8 snr1, snr2;
- int ret;
-
- *snr = 0;
-
- ret = lg216x_read_reg(state, 0x0202, &snr1);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_read_reg(state, 0x0203, &snr2);
- if (lg_fail(ret))
- goto fail;
-
- if ((snr1 == 0xba) || (snr2 == 0xdf))
- *snr = 0;
- else
-#if 1
- *snr = ((snr1 >> 4) * 100) + ((snr1 & 0x0f) * 10) + (snr2 >> 4);
-#else /* BCD */
- *snr = (snr2 | (snr1 << 8));
-#endif
-fail:
- return ret;
-}
-
-static int lg2161_read_snr(struct dvb_frontend *fe, u16 *snr)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- u8 snr1, snr2;
- int ret;
-
- *snr = 0;
-
- ret = lg216x_read_reg(state, 0x0302, &snr1);
- if (lg_fail(ret))
- goto fail;
-
- ret = lg216x_read_reg(state, 0x0303, &snr2);
- if (lg_fail(ret))
- goto fail;
-
- if ((snr1 == 0xba) || (snr2 == 0xfd))
- *snr = 0;
- else
-
- *snr = ((snr1 >> 4) * 100) + ((snr1 & 0x0f) * 10) + (snr2 & 0x0f);
-fail:
- return ret;
-}
-
-static int lg216x_read_signal_strength(struct dvb_frontend *fe,
- u16 *strength)
-{
-#if 0
- /* borrowed from lgdt330x.c
- *
- * Calculate strength from SNR up to 35dB
- * Even though the SNR can go higher than 35dB,
- * there is some comfort factor in having a range of
- * strong signals that can show at 100%
- */
- struct lg216x_state *state = fe->demodulator_priv;
- u16 snr;
- int ret;
-#endif
- *strength = 0;
-#if 0
- ret = fe->ops.read_snr(fe, &snr);
- if (lg_fail(ret))
- goto fail;
- /* Rather than use the 8.8 value snr, use state->snr which is 8.24 */
- /* scale the range 0 - 35*2^24 into 0 - 65535 */
- if (state->snr >= 8960 * 0x10000)
- *strength = 0xffff;
- else
- *strength = state->snr / 8960;
-fail:
- return ret;
-#else
- return 0;
-#endif
-}
-
-/* ------------------------------------------------------------------------ */
-
-static int lg216x_read_ucblocks(struct dvb_frontend *fe, u32 *ucblocks)
-{
-#if 0
- struct lg216x_state *state = fe->demodulator_priv;
- int ret;
-
- ret = lg216x_read_rs_err_count(state,
- &fe->dtv_property_cache.atscmh_rs_err);
- if (lg_fail(ret))
- goto fail;
-
- *ucblocks = fe->dtv_property_cache.atscmh_rs_err;
-fail:
-#else
- *ucblocks = 0;
-#endif
- return 0;
-}
-
-static int lg216x_get_tune_settings(struct dvb_frontend *fe,
- struct dvb_frontend_tune_settings
- *fe_tune_settings)
-{
- fe_tune_settings->min_delay_ms = 500;
- lg_dbg("\n");
- return 0;
-}
-
-static void lg216x_release(struct dvb_frontend *fe)
-{
- struct lg216x_state *state = fe->demodulator_priv;
- lg_dbg("\n");
- kfree(state);
-}
-
-static struct dvb_frontend_ops lg2160_ops = {
- .delsys = { SYS_ATSCMH },
- .info = {
- .name = "LG Electronics LG2160 ATSC/MH Frontend",
- .frequency_min = 54000000,
- .frequency_max = 858000000,
- .frequency_stepsize = 62500,
- },
- .i2c_gate_ctrl = lg216x_i2c_gate_ctrl,
-#if 0
- .init = lg216x_init,
- .sleep = lg216x_sleep,
-#endif
- .get_property = lg216x_get_property,
-
- .set_frontend = lg2160_set_frontend,
- .get_frontend = lg216x_get_frontend,
- .get_tune_settings = lg216x_get_tune_settings,
- .read_status = lg216x_read_status,
-#if 0
- .read_ber = lg216x_read_ber,
-#endif
- .read_signal_strength = lg216x_read_signal_strength,
- .read_snr = lg2160_read_snr,
- .read_ucblocks = lg216x_read_ucblocks,
- .release = lg216x_release,
-};
-
-static struct dvb_frontend_ops lg2161_ops = {
- .delsys = { SYS_ATSCMH },
- .info = {
- .name = "LG Electronics LG2161 ATSC/MH Frontend",
- .frequency_min = 54000000,
- .frequency_max = 858000000,
- .frequency_stepsize = 62500,
- },
- .i2c_gate_ctrl = lg216x_i2c_gate_ctrl,
-#if 0
- .init = lg216x_init,
- .sleep = lg216x_sleep,
-#endif
- .get_property = lg216x_get_property,
-
- .set_frontend = lg2160_set_frontend,
- .get_frontend = lg216x_get_frontend,
- .get_tune_settings = lg216x_get_tune_settings,
- .read_status = lg216x_read_status,
-#if 0
- .read_ber = lg216x_read_ber,
-#endif
- .read_signal_strength = lg216x_read_signal_strength,
- .read_snr = lg2161_read_snr,
- .read_ucblocks = lg216x_read_ucblocks,
- .release = lg216x_release,
-};
-
-struct dvb_frontend *lg2160_attach(const struct lg2160_config *config,
- struct i2c_adapter *i2c_adap)
-{
- struct lg216x_state *state = NULL;
-
- lg_dbg("(%d-%04x)\n",
- i2c_adap ? i2c_adapter_id(i2c_adap) : 0,
- config ? config->i2c_addr : 0);
-
- state = kzalloc(sizeof(struct lg216x_state), GFP_KERNEL);
- if (state == NULL)
- goto fail;
-
- state->cfg = config;
- state->i2c_adap = i2c_adap;
- state->fic_ver = 0xff;
- state->parade_id = 0xff;
-
- switch (config->lg_chip) {
- default:
- lg_warn("invalid chip requested, defaulting to LG2160");
- /* fall-thru */
- case LG2160:
- memcpy(&state->frontend.ops, &lg2160_ops,
- sizeof(struct dvb_frontend_ops));
- break;
- case LG2161:
- memcpy(&state->frontend.ops, &lg2161_ops,
- sizeof(struct dvb_frontend_ops));
- break;
- }
-
- state->frontend.demodulator_priv = state;
- state->current_frequency = -1;
- /* parade 1 by default */
- state->frontend.dtv_property_cache.atscmh_parade_id = 1;
-
- return &state->frontend;
-fail:
- lg_warn("unable to detect LG216x hardware\n");
- kfree(state);
- return NULL;
-}
-EXPORT_SYMBOL(lg2160_attach);
-
-MODULE_DESCRIPTION("LG Electronics LG216x ATSC/MH Demodulator Driver");
-MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
-MODULE_LICENSE("GPL");
-MODULE_VERSION("0.3");
-
-/*
- * Local variables:
- * c-basic-offset: 8
- * End:
- */
generated by cgit v1.2.3 (git 2.39.0) at 2025-03-11 13:54:56 +0300