v4.19.13 snapshot.
diff --git a/drivers/media/dvb-frontends/dib7000m.c b/drivers/media/dvb-frontends/dib7000m.c
new file mode 100644
index 0000000..b79358d
--- /dev/null
+++ b/drivers/media/dvb-frontends/dib7000m.c
@@ -0,0 +1,1477 @@
+/*
+ * Linux-DVB Driver for DiBcom's DiB7000M and
+ * first generation DiB7000P-demodulator-family.
+ *
+ * Copyright (C) 2005-7 DiBcom (http://www.dibcom.fr/)
+ *
+ * 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, version 2.
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+
+#include <media/dvb_frontend.h>
+
+#include "dib7000m.h"
+
+static int debug;
+module_param(debug, int, 0644);
+MODULE_PARM_DESC(debug, "turn on debugging (default: 0)");
+
+#define dprintk(fmt, arg...) do { \
+ if (debug) \
+ printk(KERN_DEBUG pr_fmt("%s: " fmt), \
+ __func__, ##arg); \
+} while (0)
+
+struct dib7000m_state {
+ struct dvb_frontend demod;
+ struct dib7000m_config cfg;
+
+ u8 i2c_addr;
+ struct i2c_adapter *i2c_adap;
+
+ struct dibx000_i2c_master i2c_master;
+
+/* offset is 1 in case of the 7000MC */
+ u8 reg_offs;
+
+ u16 wbd_ref;
+
+ u8 current_band;
+ u32 current_bandwidth;
+ struct dibx000_agc_config *current_agc;
+ u32 timf;
+ u32 timf_default;
+ u32 internal_clk;
+
+ u8 div_force_off : 1;
+ u8 div_state : 1;
+ u16 div_sync_wait;
+
+ u16 revision;
+
+ u8 agc_state;
+
+ /* for the I2C transfer */
+ struct i2c_msg msg[2];
+ u8 i2c_write_buffer[4];
+ u8 i2c_read_buffer[2];
+ struct mutex i2c_buffer_lock;
+};
+
+enum dib7000m_power_mode {
+ DIB7000M_POWER_ALL = 0,
+
+ DIB7000M_POWER_NO,
+ DIB7000M_POWER_INTERF_ANALOG_AGC,
+ DIB7000M_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD,
+ DIB7000M_POWER_COR4_CRY_ESRAM_MOUT_NUD,
+ DIB7000M_POWER_INTERFACE_ONLY,
+};
+
+static u16 dib7000m_read_word(struct dib7000m_state *state, u16 reg)
+{
+ u16 ret;
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock\n");
+ return 0;
+ }
+
+ state->i2c_write_buffer[0] = (reg >> 8) | 0x80;
+ state->i2c_write_buffer[1] = reg & 0xff;
+
+ memset(state->msg, 0, 2 * sizeof(struct i2c_msg));
+ state->msg[0].addr = state->i2c_addr >> 1;
+ state->msg[0].flags = 0;
+ state->msg[0].buf = state->i2c_write_buffer;
+ state->msg[0].len = 2;
+ state->msg[1].addr = state->i2c_addr >> 1;
+ state->msg[1].flags = I2C_M_RD;
+ state->msg[1].buf = state->i2c_read_buffer;
+ state->msg[1].len = 2;
+
+ if (i2c_transfer(state->i2c_adap, state->msg, 2) != 2)
+ dprintk("i2c read error on %d\n", reg);
+
+ ret = (state->i2c_read_buffer[0] << 8) | state->i2c_read_buffer[1];
+ mutex_unlock(&state->i2c_buffer_lock);
+
+ return ret;
+}
+
+static int dib7000m_write_word(struct dib7000m_state *state, u16 reg, u16 val)
+{
+ int ret;
+
+ if (mutex_lock_interruptible(&state->i2c_buffer_lock) < 0) {
+ dprintk("could not acquire lock\n");
+ return -EINVAL;
+ }
+
+ state->i2c_write_buffer[0] = (reg >> 8) & 0xff;
+ state->i2c_write_buffer[1] = reg & 0xff;
+ state->i2c_write_buffer[2] = (val >> 8) & 0xff;
+ state->i2c_write_buffer[3] = val & 0xff;
+
+ memset(&state->msg[0], 0, sizeof(struct i2c_msg));
+ state->msg[0].addr = state->i2c_addr >> 1;
+ state->msg[0].flags = 0;
+ state->msg[0].buf = state->i2c_write_buffer;
+ state->msg[0].len = 4;
+
+ ret = (i2c_transfer(state->i2c_adap, state->msg, 1) != 1 ?
+ -EREMOTEIO : 0);
+ mutex_unlock(&state->i2c_buffer_lock);
+ return ret;
+}
+static void dib7000m_write_tab(struct dib7000m_state *state, u16 *buf)
+{
+ u16 l = 0, r, *n;
+ n = buf;
+ l = *n++;
+ while (l) {
+ r = *n++;
+
+ if (state->reg_offs && (r >= 112 && r <= 331)) // compensate for 7000MC
+ r++;
+
+ do {
+ dib7000m_write_word(state, r, *n++);
+ r++;
+ } while (--l);
+ l = *n++;
+ }
+}
+
+static int dib7000m_set_output_mode(struct dib7000m_state *state, int mode)
+{
+ int ret = 0;
+ u16 outreg, fifo_threshold, smo_mode,
+ sram = 0x0005; /* by default SRAM output is disabled */
+
+ outreg = 0;
+ fifo_threshold = 1792;
+ smo_mode = (dib7000m_read_word(state, 294 + state->reg_offs) & 0x0010) | (1 << 1);
+
+ dprintk("setting output mode for demod %p to %d\n", &state->demod, mode);
+
+ switch (mode) {
+ case OUTMODE_MPEG2_PAR_GATED_CLK: // STBs with parallel gated clock
+ outreg = (1 << 10); /* 0x0400 */
+ break;
+ case OUTMODE_MPEG2_PAR_CONT_CLK: // STBs with parallel continues clock
+ outreg = (1 << 10) | (1 << 6); /* 0x0440 */
+ break;
+ case OUTMODE_MPEG2_SERIAL: // STBs with serial input
+ outreg = (1 << 10) | (2 << 6) | (0 << 1); /* 0x0482 */
+ break;
+ case OUTMODE_DIVERSITY:
+ if (state->cfg.hostbus_diversity)
+ outreg = (1 << 10) | (4 << 6); /* 0x0500 */
+ else
+ sram |= 0x0c00;
+ break;
+ case OUTMODE_MPEG2_FIFO: // e.g. USB feeding
+ smo_mode |= (3 << 1);
+ fifo_threshold = 512;
+ outreg = (1 << 10) | (5 << 6);
+ break;
+ case OUTMODE_HIGH_Z: // disable
+ outreg = 0;
+ break;
+ default:
+ dprintk("Unhandled output_mode passed to be set for demod %p\n", &state->demod);
+ break;
+ }
+
+ if (state->cfg.output_mpeg2_in_188_bytes)
+ smo_mode |= (1 << 5) ;
+
+ ret |= dib7000m_write_word(state, 294 + state->reg_offs, smo_mode);
+ ret |= dib7000m_write_word(state, 295 + state->reg_offs, fifo_threshold); /* synchronous fread */
+ ret |= dib7000m_write_word(state, 1795, outreg);
+ ret |= dib7000m_write_word(state, 1805, sram);
+
+ if (state->revision == 0x4003) {
+ u16 clk_cfg1 = dib7000m_read_word(state, 909) & 0xfffd;
+ if (mode == OUTMODE_DIVERSITY)
+ clk_cfg1 |= (1 << 1); // P_O_CLK_en
+ dib7000m_write_word(state, 909, clk_cfg1);
+ }
+ return ret;
+}
+
+static void dib7000m_set_power_mode(struct dib7000m_state *state, enum dib7000m_power_mode mode)
+{
+ /* by default everything is going to be powered off */
+ u16 reg_903 = 0xffff, reg_904 = 0xffff, reg_905 = 0xffff, reg_906 = 0x3fff;
+ u8 offset = 0;
+
+ /* now, depending on the requested mode, we power on */
+ switch (mode) {
+ /* power up everything in the demod */
+ case DIB7000M_POWER_ALL:
+ reg_903 = 0x0000; reg_904 = 0x0000; reg_905 = 0x0000; reg_906 = 0x0000;
+ break;
+
+ /* just leave power on the control-interfaces: GPIO and (I2C or SDIO or SRAM) */
+ case DIB7000M_POWER_INTERFACE_ONLY: /* TODO power up either SDIO or I2C or SRAM */
+ reg_905 &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 2));
+ break;
+
+ case DIB7000M_POWER_INTERF_ANALOG_AGC:
+ reg_903 &= ~((1 << 15) | (1 << 14) | (1 << 11) | (1 << 10));
+ reg_905 &= ~((1 << 7) | (1 << 6) | (1 << 5) | (1 << 4) | (1 << 2));
+ reg_906 &= ~((1 << 0));
+ break;
+
+ case DIB7000M_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD:
+ reg_903 = 0x0000; reg_904 = 0x801f; reg_905 = 0x0000; reg_906 = 0x0000;
+ break;
+
+ case DIB7000M_POWER_COR4_CRY_ESRAM_MOUT_NUD:
+ reg_903 = 0x0000; reg_904 = 0x8000; reg_905 = 0x010b; reg_906 = 0x0000;
+ break;
+ case DIB7000M_POWER_NO:
+ break;
+ }
+
+ /* always power down unused parts */
+ if (!state->cfg.mobile_mode)
+ reg_904 |= (1 << 7) | (1 << 6) | (1 << 4) | (1 << 2) | (1 << 1);
+
+ /* P_sdio_select_clk = 0 on MC and after*/
+ if (state->revision != 0x4000)
+ reg_906 <<= 1;
+
+ if (state->revision == 0x4003)
+ offset = 1;
+
+ dib7000m_write_word(state, 903 + offset, reg_903);
+ dib7000m_write_word(state, 904 + offset, reg_904);
+ dib7000m_write_word(state, 905 + offset, reg_905);
+ dib7000m_write_word(state, 906 + offset, reg_906);
+}
+
+static int dib7000m_set_adc_state(struct dib7000m_state *state, enum dibx000_adc_states no)
+{
+ int ret = 0;
+ u16 reg_913 = dib7000m_read_word(state, 913),
+ reg_914 = dib7000m_read_word(state, 914);
+
+ switch (no) {
+ case DIBX000_SLOW_ADC_ON:
+ reg_914 |= (1 << 1) | (1 << 0);
+ ret |= dib7000m_write_word(state, 914, reg_914);
+ reg_914 &= ~(1 << 1);
+ break;
+
+ case DIBX000_SLOW_ADC_OFF:
+ reg_914 |= (1 << 1) | (1 << 0);
+ break;
+
+ case DIBX000_ADC_ON:
+ if (state->revision == 0x4000) { // workaround for PA/MA
+ // power-up ADC
+ dib7000m_write_word(state, 913, 0);
+ dib7000m_write_word(state, 914, reg_914 & 0x3);
+ // power-down bandgag
+ dib7000m_write_word(state, 913, (1 << 15));
+ dib7000m_write_word(state, 914, reg_914 & 0x3);
+ }
+
+ reg_913 &= 0x0fff;
+ reg_914 &= 0x0003;
+ break;
+
+ case DIBX000_ADC_OFF: // leave the VBG voltage on
+ reg_913 |= (1 << 14) | (1 << 13) | (1 << 12);
+ reg_914 |= (1 << 5) | (1 << 4) | (1 << 3) | (1 << 2);
+ break;
+
+ case DIBX000_VBG_ENABLE:
+ reg_913 &= ~(1 << 15);
+ break;
+
+ case DIBX000_VBG_DISABLE:
+ reg_913 |= (1 << 15);
+ break;
+
+ default:
+ break;
+ }
+
+// dprintk("913: %x, 914: %x\n", reg_913, reg_914);
+ ret |= dib7000m_write_word(state, 913, reg_913);
+ ret |= dib7000m_write_word(state, 914, reg_914);
+
+ return ret;
+}
+
+static int dib7000m_set_bandwidth(struct dib7000m_state *state, u32 bw)
+{
+ u32 timf;
+
+ if (!bw)
+ bw = 8000;
+
+ // store the current bandwidth for later use
+ state->current_bandwidth = bw;
+
+ if (state->timf == 0) {
+ dprintk("using default timf\n");
+ timf = state->timf_default;
+ } else {
+ dprintk("using updated timf\n");
+ timf = state->timf;
+ }
+
+ timf = timf * (bw / 50) / 160;
+
+ dib7000m_write_word(state, 23, (u16) ((timf >> 16) & 0xffff));
+ dib7000m_write_word(state, 24, (u16) ((timf ) & 0xffff));
+
+ return 0;
+}
+
+static int dib7000m_set_diversity_in(struct dvb_frontend *demod, int onoff)
+{
+ struct dib7000m_state *state = demod->demodulator_priv;
+
+ if (state->div_force_off) {
+ dprintk("diversity combination deactivated - forced by COFDM parameters\n");
+ onoff = 0;
+ }
+ state->div_state = (u8)onoff;
+
+ if (onoff) {
+ dib7000m_write_word(state, 263 + state->reg_offs, 6);
+ dib7000m_write_word(state, 264 + state->reg_offs, 6);
+ dib7000m_write_word(state, 266 + state->reg_offs, (state->div_sync_wait << 4) | (1 << 2) | (2 << 0));
+ } else {
+ dib7000m_write_word(state, 263 + state->reg_offs, 1);
+ dib7000m_write_word(state, 264 + state->reg_offs, 0);
+ dib7000m_write_word(state, 266 + state->reg_offs, 0);
+ }
+
+ return 0;
+}
+
+static int dib7000m_sad_calib(struct dib7000m_state *state)
+{
+
+/* internal */
+// dib7000m_write_word(state, 928, (3 << 14) | (1 << 12) | (524 << 0)); // sampling clock of the SAD is writting in set_bandwidth
+ dib7000m_write_word(state, 929, (0 << 1) | (0 << 0));
+ dib7000m_write_word(state, 930, 776); // 0.625*3.3 / 4096
+
+ /* do the calibration */
+ dib7000m_write_word(state, 929, (1 << 0));
+ dib7000m_write_word(state, 929, (0 << 0));
+
+ msleep(1);
+
+ return 0;
+}
+
+static void dib7000m_reset_pll_common(struct dib7000m_state *state, const struct dibx000_bandwidth_config *bw)
+{
+ dib7000m_write_word(state, 18, (u16) (((bw->internal*1000) >> 16) & 0xffff));
+ dib7000m_write_word(state, 19, (u16) ( (bw->internal*1000) & 0xffff));
+ dib7000m_write_word(state, 21, (u16) ( (bw->ifreq >> 16) & 0xffff));
+ dib7000m_write_word(state, 22, (u16) ( bw->ifreq & 0xffff));
+
+ dib7000m_write_word(state, 928, bw->sad_cfg);
+}
+
+static void dib7000m_reset_pll(struct dib7000m_state *state)
+{
+ const struct dibx000_bandwidth_config *bw = state->cfg.bw;
+ u16 reg_907,reg_910;
+
+ /* default */
+ reg_907 = (bw->pll_bypass << 15) | (bw->modulo << 7) |
+ (bw->ADClkSrc << 6) | (bw->IO_CLK_en_core << 5) | (bw->bypclk_div << 2) |
+ (bw->enable_refdiv << 1) | (0 << 0);
+ reg_910 = (((bw->pll_ratio >> 6) & 0x3) << 3) | (bw->pll_range << 1) | bw->pll_reset;
+
+ // for this oscillator frequency should be 30 MHz for the Master (default values in the board_parameters give that value)
+ // this is only working only for 30 MHz crystals
+ if (!state->cfg.quartz_direct) {
+ reg_910 |= (1 << 5); // forcing the predivider to 1
+
+ // if the previous front-end is baseband, its output frequency is 15 MHz (prev freq divided by 2)
+ if(state->cfg.input_clk_is_div_2)
+ reg_907 |= (16 << 9);
+ else // otherwise the previous front-end puts out its input (default 30MHz) - no extra division necessary
+ reg_907 |= (8 << 9);
+ } else {
+ reg_907 |= (bw->pll_ratio & 0x3f) << 9;
+ reg_910 |= (bw->pll_prediv << 5);
+ }
+
+ dib7000m_write_word(state, 910, reg_910); // pll cfg
+ dib7000m_write_word(state, 907, reg_907); // clk cfg0
+ dib7000m_write_word(state, 908, 0x0006); // clk_cfg1
+
+ dib7000m_reset_pll_common(state, bw);
+}
+
+static void dib7000mc_reset_pll(struct dib7000m_state *state)
+{
+ const struct dibx000_bandwidth_config *bw = state->cfg.bw;
+ u16 clk_cfg1;
+
+ // clk_cfg0
+ dib7000m_write_word(state, 907, (bw->pll_prediv << 8) | (bw->pll_ratio << 0));
+
+ // clk_cfg1
+ //dib7000m_write_word(state, 908, (1 << 14) | (3 << 12) |(0 << 11) |
+ clk_cfg1 = (0 << 14) | (3 << 12) |(0 << 11) |
+ (bw->IO_CLK_en_core << 10) | (bw->bypclk_div << 5) | (bw->enable_refdiv << 4) |
+ (1 << 3) | (bw->pll_range << 1) | (bw->pll_reset << 0);
+ dib7000m_write_word(state, 908, clk_cfg1);
+ clk_cfg1 = (clk_cfg1 & 0xfff7) | (bw->pll_bypass << 3);
+ dib7000m_write_word(state, 908, clk_cfg1);
+
+ // smpl_cfg
+ dib7000m_write_word(state, 910, (1 << 12) | (2 << 10) | (bw->modulo << 8) | (bw->ADClkSrc << 7));
+
+ dib7000m_reset_pll_common(state, bw);
+}
+
+static int dib7000m_reset_gpio(struct dib7000m_state *st)
+{
+ /* reset the GPIOs */
+ dib7000m_write_word(st, 773, st->cfg.gpio_dir);
+ dib7000m_write_word(st, 774, st->cfg.gpio_val);
+
+ /* TODO 782 is P_gpio_od */
+
+ dib7000m_write_word(st, 775, st->cfg.gpio_pwm_pos);
+
+ dib7000m_write_word(st, 780, st->cfg.pwm_freq_div);
+ return 0;
+}
+
+static u16 dib7000m_defaults_common[] =
+
+{
+ // auto search configuration
+ 3, 2,
+ 0x0004,
+ 0x1000,
+ 0x0814,
+
+ 12, 6,
+ 0x001b,
+ 0x7740,
+ 0x005b,
+ 0x8d80,
+ 0x01c9,
+ 0xc380,
+ 0x0000,
+ 0x0080,
+ 0x0000,
+ 0x0090,
+ 0x0001,
+ 0xd4c0,
+
+ 1, 26,
+ 0x6680, // P_corm_thres Lock algorithms configuration
+
+ 1, 170,
+ 0x0410, // P_palf_alpha_regul, P_palf_filter_freeze, P_palf_filter_on
+
+ 8, 173,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+ 0,
+
+ 1, 182,
+ 8192, // P_fft_nb_to_cut
+
+ 2, 195,
+ 0x0ccd, // P_pha3_thres
+ 0, // P_cti_use_cpe, P_cti_use_prog
+
+ 1, 205,
+ 0x200f, // P_cspu_regul, P_cspu_win_cut
+
+ 5, 214,
+ 0x023d, // P_adp_regul_cnt
+ 0x00a4, // P_adp_noise_cnt
+ 0x00a4, // P_adp_regul_ext
+ 0x7ff0, // P_adp_noise_ext
+ 0x3ccc, // P_adp_fil
+
+ 1, 226,
+ 0, // P_2d_byp_ti_num
+
+ 1, 255,
+ 0x800, // P_equal_thres_wgn
+
+ 1, 263,
+ 0x0001,
+
+ 1, 281,
+ 0x0010, // P_fec_*
+
+ 1, 294,
+ 0x0062, // P_smo_mode, P_smo_rs_discard, P_smo_fifo_flush, P_smo_pid_parse, P_smo_error_discard
+
+ 0
+};
+
+static u16 dib7000m_defaults[] =
+
+{
+ /* set ADC level to -16 */
+ 11, 76,
+ (1 << 13) - 825 - 117,
+ (1 << 13) - 837 - 117,
+ (1 << 13) - 811 - 117,
+ (1 << 13) - 766 - 117,
+ (1 << 13) - 737 - 117,
+ (1 << 13) - 693 - 117,
+ (1 << 13) - 648 - 117,
+ (1 << 13) - 619 - 117,
+ (1 << 13) - 575 - 117,
+ (1 << 13) - 531 - 117,
+ (1 << 13) - 501 - 117,
+
+ // Tuner IO bank: max drive (14mA)
+ 1, 912,
+ 0x2c8a,
+
+ 1, 1817,
+ 1,
+
+ 0,
+};
+
+static int dib7000m_demod_reset(struct dib7000m_state *state)
+{
+ dib7000m_set_power_mode(state, DIB7000M_POWER_ALL);
+
+ /* always leave the VBG voltage on - it consumes almost nothing but takes a long time to start */
+ dib7000m_set_adc_state(state, DIBX000_VBG_ENABLE);
+
+ /* restart all parts */
+ dib7000m_write_word(state, 898, 0xffff);
+ dib7000m_write_word(state, 899, 0xffff);
+ dib7000m_write_word(state, 900, 0xff0f);
+ dib7000m_write_word(state, 901, 0xfffc);
+
+ dib7000m_write_word(state, 898, 0);
+ dib7000m_write_word(state, 899, 0);
+ dib7000m_write_word(state, 900, 0);
+ dib7000m_write_word(state, 901, 0);
+
+ if (state->revision == 0x4000)
+ dib7000m_reset_pll(state);
+ else
+ dib7000mc_reset_pll(state);
+
+ if (dib7000m_reset_gpio(state) != 0)
+ dprintk("GPIO reset was not successful.\n");
+
+ if (dib7000m_set_output_mode(state, OUTMODE_HIGH_Z) != 0)
+ dprintk("OUTPUT_MODE could not be reset.\n");
+
+ /* unforce divstr regardless whether i2c enumeration was done or not */
+ dib7000m_write_word(state, 1794, dib7000m_read_word(state, 1794) & ~(1 << 1) );
+
+ dib7000m_set_bandwidth(state, 8000);
+
+ dib7000m_set_adc_state(state, DIBX000_SLOW_ADC_ON);
+ dib7000m_sad_calib(state);
+ dib7000m_set_adc_state(state, DIBX000_SLOW_ADC_OFF);
+
+ if (state->cfg.dvbt_mode)
+ dib7000m_write_word(state, 1796, 0x0); // select DVB-T output
+
+ if (state->cfg.mobile_mode)
+ dib7000m_write_word(state, 261 + state->reg_offs, 2);
+ else
+ dib7000m_write_word(state, 224 + state->reg_offs, 1);
+
+ // P_iqc_alpha_pha, P_iqc_alpha_amp, P_iqc_dcc_alpha, ...
+ if(state->cfg.tuner_is_baseband)
+ dib7000m_write_word(state, 36, 0x0755);
+ else
+ dib7000m_write_word(state, 36, 0x1f55);
+
+ // P_divclksel=3 P_divbitsel=1
+ if (state->revision == 0x4000)
+ dib7000m_write_word(state, 909, (3 << 10) | (1 << 6));
+ else
+ dib7000m_write_word(state, 909, (3 << 4) | 1);
+
+ dib7000m_write_tab(state, dib7000m_defaults_common);
+ dib7000m_write_tab(state, dib7000m_defaults);
+
+ dib7000m_set_power_mode(state, DIB7000M_POWER_INTERFACE_ONLY);
+
+ state->internal_clk = state->cfg.bw->internal;
+
+ return 0;
+}
+
+static void dib7000m_restart_agc(struct dib7000m_state *state)
+{
+ // P_restart_iqc & P_restart_agc
+ dib7000m_write_word(state, 898, 0x0c00);
+ dib7000m_write_word(state, 898, 0x0000);
+}
+
+static int dib7000m_agc_soft_split(struct dib7000m_state *state)
+{
+ u16 agc,split_offset;
+
+ if(!state->current_agc || !state->current_agc->perform_agc_softsplit || state->current_agc->split.max == 0)
+ return 0;
+
+ // n_agc_global
+ agc = dib7000m_read_word(state, 390);
+
+ if (agc > state->current_agc->split.min_thres)
+ split_offset = state->current_agc->split.min;
+ else if (agc < state->current_agc->split.max_thres)
+ split_offset = state->current_agc->split.max;
+ else
+ split_offset = state->current_agc->split.max *
+ (agc - state->current_agc->split.min_thres) /
+ (state->current_agc->split.max_thres - state->current_agc->split.min_thres);
+
+ dprintk("AGC split_offset: %d\n", split_offset);
+
+ // P_agc_force_split and P_agc_split_offset
+ return dib7000m_write_word(state, 103, (dib7000m_read_word(state, 103) & 0xff00) | split_offset);
+}
+
+static int dib7000m_update_lna(struct dib7000m_state *state)
+{
+ u16 dyn_gain;
+
+ if (state->cfg.update_lna) {
+ // read dyn_gain here (because it is demod-dependent and not fe)
+ dyn_gain = dib7000m_read_word(state, 390);
+
+ if (state->cfg.update_lna(&state->demod,dyn_gain)) { // LNA has changed
+ dib7000m_restart_agc(state);
+ return 1;
+ }
+ }
+ return 0;
+}
+
+static int dib7000m_set_agc_config(struct dib7000m_state *state, u8 band)
+{
+ struct dibx000_agc_config *agc = NULL;
+ int i;
+ if (state->current_band == band && state->current_agc != NULL)
+ return 0;
+ state->current_band = band;
+
+ for (i = 0; i < state->cfg.agc_config_count; i++)
+ if (state->cfg.agc[i].band_caps & band) {
+ agc = &state->cfg.agc[i];
+ break;
+ }
+
+ if (agc == NULL) {
+ dprintk("no valid AGC configuration found for band 0x%02x\n", band);
+ return -EINVAL;
+ }
+
+ state->current_agc = agc;
+
+ /* AGC */
+ dib7000m_write_word(state, 72 , agc->setup);
+ dib7000m_write_word(state, 73 , agc->inv_gain);
+ dib7000m_write_word(state, 74 , agc->time_stabiliz);
+ dib7000m_write_word(state, 97 , (agc->alpha_level << 12) | agc->thlock);
+
+ // Demod AGC loop configuration
+ dib7000m_write_word(state, 98, (agc->alpha_mant << 5) | agc->alpha_exp);
+ dib7000m_write_word(state, 99, (agc->beta_mant << 6) | agc->beta_exp);
+
+ dprintk("WBD: ref: %d, sel: %d, active: %d, alpha: %d\n",
+ state->wbd_ref != 0 ? state->wbd_ref : agc->wbd_ref, agc->wbd_sel, !agc->perform_agc_softsplit, agc->wbd_sel);
+
+ /* AGC continued */
+ if (state->wbd_ref != 0)
+ dib7000m_write_word(state, 102, state->wbd_ref);
+ else // use default
+ dib7000m_write_word(state, 102, agc->wbd_ref);
+
+ dib7000m_write_word(state, 103, (agc->wbd_alpha << 9) | (agc->perform_agc_softsplit << 8) );
+ dib7000m_write_word(state, 104, agc->agc1_max);
+ dib7000m_write_word(state, 105, agc->agc1_min);
+ dib7000m_write_word(state, 106, agc->agc2_max);
+ dib7000m_write_word(state, 107, agc->agc2_min);
+ dib7000m_write_word(state, 108, (agc->agc1_pt1 << 8) | agc->agc1_pt2 );
+ dib7000m_write_word(state, 109, (agc->agc1_slope1 << 8) | agc->agc1_slope2);
+ dib7000m_write_word(state, 110, (agc->agc2_pt1 << 8) | agc->agc2_pt2);
+ dib7000m_write_word(state, 111, (agc->agc2_slope1 << 8) | agc->agc2_slope2);
+
+ if (state->revision > 0x4000) { // settings for the MC
+ dib7000m_write_word(state, 71, agc->agc1_pt3);
+// dprintk("929: %x %d %d\n",
+// (dib7000m_read_word(state, 929) & 0xffe3) | (agc->wbd_inv << 4) | (agc->wbd_sel << 2), agc->wbd_inv, agc->wbd_sel);
+ dib7000m_write_word(state, 929, (dib7000m_read_word(state, 929) & 0xffe3) | (agc->wbd_inv << 4) | (agc->wbd_sel << 2));
+ } else {
+ // wrong default values
+ u16 b[9] = { 676, 696, 717, 737, 758, 778, 799, 819, 840 };
+ for (i = 0; i < 9; i++)
+ dib7000m_write_word(state, 88 + i, b[i]);
+ }
+ return 0;
+}
+
+static void dib7000m_update_timf(struct dib7000m_state *state)
+{
+ u32 timf = (dib7000m_read_word(state, 436) << 16) | dib7000m_read_word(state, 437);
+ state->timf = timf * 160 / (state->current_bandwidth / 50);
+ dib7000m_write_word(state, 23, (u16) (timf >> 16));
+ dib7000m_write_word(state, 24, (u16) (timf & 0xffff));
+ dprintk("updated timf_frequency: %d (default: %d)\n", state->timf, state->timf_default);
+}
+
+static int dib7000m_agc_startup(struct dvb_frontend *demod)
+{
+ struct dtv_frontend_properties *ch = &demod->dtv_property_cache;
+ struct dib7000m_state *state = demod->demodulator_priv;
+ u16 cfg_72 = dib7000m_read_word(state, 72);
+ int ret = -1;
+ u8 *agc_state = &state->agc_state;
+ u8 agc_split;
+
+ switch (state->agc_state) {
+ case 0:
+ // set power-up level: interf+analog+AGC
+ dib7000m_set_power_mode(state, DIB7000M_POWER_INTERF_ANALOG_AGC);
+ dib7000m_set_adc_state(state, DIBX000_ADC_ON);
+
+ if (dib7000m_set_agc_config(state, BAND_OF_FREQUENCY(ch->frequency/1000)) != 0)
+ return -1;
+
+ ret = 7; /* ADC power up */
+ (*agc_state)++;
+ break;
+
+ case 1:
+ /* AGC initialization */
+ if (state->cfg.agc_control)
+ state->cfg.agc_control(&state->demod, 1);
+
+ dib7000m_write_word(state, 75, 32768);
+ if (!state->current_agc->perform_agc_softsplit) {
+ /* we are using the wbd - so slow AGC startup */
+ dib7000m_write_word(state, 103, 1 << 8); /* force 0 split on WBD and restart AGC */
+ (*agc_state)++;
+ ret = 5;
+ } else {
+ /* default AGC startup */
+ (*agc_state) = 4;
+ /* wait AGC rough lock time */
+ ret = 7;
+ }
+
+ dib7000m_restart_agc(state);
+ break;
+
+ case 2: /* fast split search path after 5sec */
+ dib7000m_write_word(state, 72, cfg_72 | (1 << 4)); /* freeze AGC loop */
+ dib7000m_write_word(state, 103, 2 << 9); /* fast split search 0.25kHz */
+ (*agc_state)++;
+ ret = 14;
+ break;
+
+ case 3: /* split search ended */
+ agc_split = (u8)dib7000m_read_word(state, 392); /* store the split value for the next time */
+ dib7000m_write_word(state, 75, dib7000m_read_word(state, 390)); /* set AGC gain start value */
+
+ dib7000m_write_word(state, 72, cfg_72 & ~(1 << 4)); /* std AGC loop */
+ dib7000m_write_word(state, 103, (state->current_agc->wbd_alpha << 9) | agc_split); /* standard split search */
+
+ dib7000m_restart_agc(state);
+
+ dprintk("SPLIT %p: %hd\n", demod, agc_split);
+
+ (*agc_state)++;
+ ret = 5;
+ break;
+
+ case 4: /* LNA startup */
+ /* wait AGC accurate lock time */
+ ret = 7;
+
+ if (dib7000m_update_lna(state))
+ // wait only AGC rough lock time
+ ret = 5;
+ else
+ (*agc_state)++;
+ break;
+
+ case 5:
+ dib7000m_agc_soft_split(state);
+
+ if (state->cfg.agc_control)
+ state->cfg.agc_control(&state->demod, 0);
+
+ (*agc_state)++;
+ break;
+
+ default:
+ break;
+ }
+ return ret;
+}
+
+static void dib7000m_set_channel(struct dib7000m_state *state, struct dtv_frontend_properties *ch,
+ u8 seq)
+{
+ u16 value, est[4];
+
+ dib7000m_set_bandwidth(state, BANDWIDTH_TO_KHZ(ch->bandwidth_hz));
+
+ /* nfft, guard, qam, alpha */
+ value = 0;
+ switch (ch->transmission_mode) {
+ case TRANSMISSION_MODE_2K: value |= (0 << 7); break;
+ case TRANSMISSION_MODE_4K: value |= (2 << 7); break;
+ default:
+ case TRANSMISSION_MODE_8K: value |= (1 << 7); break;
+ }
+ switch (ch->guard_interval) {
+ case GUARD_INTERVAL_1_32: value |= (0 << 5); break;
+ case GUARD_INTERVAL_1_16: value |= (1 << 5); break;
+ case GUARD_INTERVAL_1_4: value |= (3 << 5); break;
+ default:
+ case GUARD_INTERVAL_1_8: value |= (2 << 5); break;
+ }
+ switch (ch->modulation) {
+ case QPSK: value |= (0 << 3); break;
+ case QAM_16: value |= (1 << 3); break;
+ default:
+ case QAM_64: value |= (2 << 3); break;
+ }
+ switch (HIERARCHY_1) {
+ case HIERARCHY_2: value |= 2; break;
+ case HIERARCHY_4: value |= 4; break;
+ default:
+ case HIERARCHY_1: value |= 1; break;
+ }
+ dib7000m_write_word(state, 0, value);
+ dib7000m_write_word(state, 5, (seq << 4));
+
+ /* P_dintl_native, P_dintlv_inv, P_hrch, P_code_rate, P_select_hp */
+ value = 0;
+ if (1 != 0)
+ value |= (1 << 6);
+ if (ch->hierarchy == 1)
+ value |= (1 << 4);
+ if (1 == 1)
+ value |= 1;
+ switch ((ch->hierarchy == 0 || 1 == 1) ? ch->code_rate_HP : ch->code_rate_LP) {
+ case FEC_2_3: value |= (2 << 1); break;
+ case FEC_3_4: value |= (3 << 1); break;
+ case FEC_5_6: value |= (5 << 1); break;
+ case FEC_7_8: value |= (7 << 1); break;
+ default:
+ case FEC_1_2: value |= (1 << 1); break;
+ }
+ dib7000m_write_word(state, 267 + state->reg_offs, value);
+
+ /* offset loop parameters */
+
+ /* P_timf_alpha = 6, P_corm_alpha=6, P_corm_thres=0x80 */
+ dib7000m_write_word(state, 26, (6 << 12) | (6 << 8) | 0x80);
+
+ /* P_ctrl_inh_cor=0, P_ctrl_alpha_cor=4, P_ctrl_inh_isi=1, P_ctrl_alpha_isi=3, P_ctrl_inh_cor4=1, P_ctrl_alpha_cor4=3 */
+ dib7000m_write_word(state, 29, (0 << 14) | (4 << 10) | (1 << 9) | (3 << 5) | (1 << 4) | (0x3));
+
+ /* P_ctrl_freeze_pha_shift=0, P_ctrl_pha_off_max=3 */
+ dib7000m_write_word(state, 32, (0 << 4) | 0x3);
+
+ /* P_ctrl_sfreq_inh=0, P_ctrl_sfreq_step=5 */
+ dib7000m_write_word(state, 33, (0 << 4) | 0x5);
+
+ /* P_dvsy_sync_wait */
+ switch (ch->transmission_mode) {
+ case TRANSMISSION_MODE_8K: value = 256; break;
+ case TRANSMISSION_MODE_4K: value = 128; break;
+ case TRANSMISSION_MODE_2K:
+ default: value = 64; break;
+ }
+ switch (ch->guard_interval) {
+ case GUARD_INTERVAL_1_16: value *= 2; break;
+ case GUARD_INTERVAL_1_8: value *= 4; break;
+ case GUARD_INTERVAL_1_4: value *= 8; break;
+ default:
+ case GUARD_INTERVAL_1_32: value *= 1; break;
+ }
+ state->div_sync_wait = (value * 3) / 2 + 32; // add 50% SFN margin + compensate for one DVSY-fifo TODO
+
+ /* deactive the possibility of diversity reception if extended interleave - not for 7000MC */
+ /* P_dvsy_sync_mode = 0, P_dvsy_sync_enable=1, P_dvcb_comb_mode=2 */
+ if (1 == 1 || state->revision > 0x4000)
+ state->div_force_off = 0;
+ else
+ state->div_force_off = 1;
+ dib7000m_set_diversity_in(&state->demod, state->div_state);
+
+ /* channel estimation fine configuration */
+ switch (ch->modulation) {
+ case QAM_64:
+ est[0] = 0x0148; /* P_adp_regul_cnt 0.04 */
+ est[1] = 0xfff0; /* P_adp_noise_cnt -0.002 */
+ est[2] = 0x00a4; /* P_adp_regul_ext 0.02 */
+ est[3] = 0xfff8; /* P_adp_noise_ext -0.001 */
+ break;
+ case QAM_16:
+ est[0] = 0x023d; /* P_adp_regul_cnt 0.07 */
+ est[1] = 0xffdf; /* P_adp_noise_cnt -0.004 */
+ est[2] = 0x00a4; /* P_adp_regul_ext 0.02 */
+ est[3] = 0xfff0; /* P_adp_noise_ext -0.002 */
+ break;
+ default:
+ est[0] = 0x099a; /* P_adp_regul_cnt 0.3 */
+ est[1] = 0xffae; /* P_adp_noise_cnt -0.01 */
+ est[2] = 0x0333; /* P_adp_regul_ext 0.1 */
+ est[3] = 0xfff8; /* P_adp_noise_ext -0.002 */
+ break;
+ }
+ for (value = 0; value < 4; value++)
+ dib7000m_write_word(state, 214 + value + state->reg_offs, est[value]);
+
+ // set power-up level: autosearch
+ dib7000m_set_power_mode(state, DIB7000M_POWER_COR4_DINTLV_ICIRM_EQUAL_CFROD);
+}
+
+static int dib7000m_autosearch_start(struct dvb_frontend *demod)
+{
+ struct dtv_frontend_properties *ch = &demod->dtv_property_cache;
+ struct dib7000m_state *state = demod->demodulator_priv;
+ struct dtv_frontend_properties schan;
+ int ret = 0;
+ u32 value, factor;
+
+ schan = *ch;
+
+ schan.modulation = QAM_64;
+ schan.guard_interval = GUARD_INTERVAL_1_32;
+ schan.transmission_mode = TRANSMISSION_MODE_8K;
+ schan.code_rate_HP = FEC_2_3;
+ schan.code_rate_LP = FEC_3_4;
+ schan.hierarchy = 0;
+
+ dib7000m_set_channel(state, &schan, 7);
+
+ factor = BANDWIDTH_TO_KHZ(schan.bandwidth_hz);
+ if (factor >= 5000)
+ factor = 1;
+ else
+ factor = 6;
+
+ // always use the setting for 8MHz here lock_time for 7,6 MHz are longer
+ value = 30 * state->internal_clk * factor;
+ ret |= dib7000m_write_word(state, 6, (u16) ((value >> 16) & 0xffff)); // lock0 wait time
+ ret |= dib7000m_write_word(state, 7, (u16) (value & 0xffff)); // lock0 wait time
+ value = 100 * state->internal_clk * factor;
+ ret |= dib7000m_write_word(state, 8, (u16) ((value >> 16) & 0xffff)); // lock1 wait time
+ ret |= dib7000m_write_word(state, 9, (u16) (value & 0xffff)); // lock1 wait time
+ value = 500 * state->internal_clk * factor;
+ ret |= dib7000m_write_word(state, 10, (u16) ((value >> 16) & 0xffff)); // lock2 wait time
+ ret |= dib7000m_write_word(state, 11, (u16) (value & 0xffff)); // lock2 wait time
+
+ // start search
+ value = dib7000m_read_word(state, 0);
+ ret |= dib7000m_write_word(state, 0, (u16) (value | (1 << 9)));
+
+ /* clear n_irq_pending */
+ if (state->revision == 0x4000)
+ dib7000m_write_word(state, 1793, 0);
+ else
+ dib7000m_read_word(state, 537);
+
+ ret |= dib7000m_write_word(state, 0, (u16) value);
+
+ return ret;
+}
+
+static int dib7000m_autosearch_irq(struct dib7000m_state *state, u16 reg)
+{
+ u16 irq_pending = dib7000m_read_word(state, reg);
+
+ if (irq_pending & 0x1) { // failed
+ dprintk("autosearch failed\n");
+ return 1;
+ }
+
+ if (irq_pending & 0x2) { // succeeded
+ dprintk("autosearch succeeded\n");
+ return 2;
+ }
+ return 0; // still pending
+}
+
+static int dib7000m_autosearch_is_irq(struct dvb_frontend *demod)
+{
+ struct dib7000m_state *state = demod->demodulator_priv;
+ if (state->revision == 0x4000)
+ return dib7000m_autosearch_irq(state, 1793);
+ else
+ return dib7000m_autosearch_irq(state, 537);
+}
+
+static int dib7000m_tune(struct dvb_frontend *demod)
+{
+ struct dtv_frontend_properties *ch = &demod->dtv_property_cache;
+ struct dib7000m_state *state = demod->demodulator_priv;
+ int ret = 0;
+ u16 value;
+
+ // we are already tuned - just resuming from suspend
+ dib7000m_set_channel(state, ch, 0);
+
+ // restart demod
+ ret |= dib7000m_write_word(state, 898, 0x4000);
+ ret |= dib7000m_write_word(state, 898, 0x0000);
+ msleep(45);
+
+ dib7000m_set_power_mode(state, DIB7000M_POWER_COR4_CRY_ESRAM_MOUT_NUD);
+ /* P_ctrl_inh_cor=0, P_ctrl_alpha_cor=4, P_ctrl_inh_isi=0, P_ctrl_alpha_isi=3, P_ctrl_inh_cor4=1, P_ctrl_alpha_cor4=3 */
+ ret |= dib7000m_write_word(state, 29, (0 << 14) | (4 << 10) | (0 << 9) | (3 << 5) | (1 << 4) | (0x3));
+
+ // never achieved a lock before - wait for timfreq to update
+ if (state->timf == 0)
+ msleep(200);
+
+ //dump_reg(state);
+ /* P_timf_alpha, P_corm_alpha=6, P_corm_thres=0x80 */
+ value = (6 << 8) | 0x80;
+ switch (ch->transmission_mode) {
+ case TRANSMISSION_MODE_2K: value |= (7 << 12); break;
+ case TRANSMISSION_MODE_4K: value |= (8 << 12); break;
+ default:
+ case TRANSMISSION_MODE_8K: value |= (9 << 12); break;
+ }
+ ret |= dib7000m_write_word(state, 26, value);
+
+ /* P_ctrl_freeze_pha_shift=0, P_ctrl_pha_off_max */
+ value = (0 << 4);
+ switch (ch->transmission_mode) {
+ case TRANSMISSION_MODE_2K: value |= 0x6; break;
+ case TRANSMISSION_MODE_4K: value |= 0x7; break;
+ default:
+ case TRANSMISSION_MODE_8K: value |= 0x8; break;
+ }
+ ret |= dib7000m_write_word(state, 32, value);
+
+ /* P_ctrl_sfreq_inh=0, P_ctrl_sfreq_step */
+ value = (0 << 4);
+ switch (ch->transmission_mode) {
+ case TRANSMISSION_MODE_2K: value |= 0x6; break;
+ case TRANSMISSION_MODE_4K: value |= 0x7; break;
+ default:
+ case TRANSMISSION_MODE_8K: value |= 0x8; break;
+ }
+ ret |= dib7000m_write_word(state, 33, value);
+
+ // we achieved a lock - it's time to update the timf freq
+ if ((dib7000m_read_word(state, 535) >> 6) & 0x1)
+ dib7000m_update_timf(state);
+
+ dib7000m_set_bandwidth(state, BANDWIDTH_TO_KHZ(ch->bandwidth_hz));
+ return ret;
+}
+
+static int dib7000m_wakeup(struct dvb_frontend *demod)
+{
+ struct dib7000m_state *state = demod->demodulator_priv;
+
+ dib7000m_set_power_mode(state, DIB7000M_POWER_ALL);
+
+ if (dib7000m_set_adc_state(state, DIBX000_SLOW_ADC_ON) != 0)
+ dprintk("could not start Slow ADC\n");
+
+ return 0;
+}
+
+static int dib7000m_sleep(struct dvb_frontend *demod)
+{
+ struct dib7000m_state *st = demod->demodulator_priv;
+ dib7000m_set_output_mode(st, OUTMODE_HIGH_Z);
+ dib7000m_set_power_mode(st, DIB7000M_POWER_INTERFACE_ONLY);
+ return dib7000m_set_adc_state(st, DIBX000_SLOW_ADC_OFF) |
+ dib7000m_set_adc_state(st, DIBX000_ADC_OFF);
+}
+
+static int dib7000m_identify(struct dib7000m_state *state)
+{
+ u16 value;
+
+ if ((value = dib7000m_read_word(state, 896)) != 0x01b3) {
+ dprintk("wrong Vendor ID (0x%x)\n", value);
+ return -EREMOTEIO;
+ }
+
+ state->revision = dib7000m_read_word(state, 897);
+ if (state->revision != 0x4000 &&
+ state->revision != 0x4001 &&
+ state->revision != 0x4002 &&
+ state->revision != 0x4003) {
+ dprintk("wrong Device ID (0x%x)\n", value);
+ return -EREMOTEIO;
+ }
+
+ /* protect this driver to be used with 7000PC */
+ if (state->revision == 0x4000 && dib7000m_read_word(state, 769) == 0x4000) {
+ dprintk("this driver does not work with DiB7000PC\n");
+ return -EREMOTEIO;
+ }
+
+ switch (state->revision) {
+ case 0x4000: dprintk("found DiB7000MA/PA/MB/PB\n"); break;
+ case 0x4001: state->reg_offs = 1; dprintk("found DiB7000HC\n"); break;
+ case 0x4002: state->reg_offs = 1; dprintk("found DiB7000MC\n"); break;
+ case 0x4003: state->reg_offs = 1; dprintk("found DiB9000\n"); break;
+ }
+
+ return 0;
+}
+
+
+static int dib7000m_get_frontend(struct dvb_frontend* fe,
+ struct dtv_frontend_properties *fep)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ u16 tps = dib7000m_read_word(state,480);
+
+ fep->inversion = INVERSION_AUTO;
+
+ fep->bandwidth_hz = BANDWIDTH_TO_HZ(state->current_bandwidth);
+
+ switch ((tps >> 8) & 0x3) {
+ case 0: fep->transmission_mode = TRANSMISSION_MODE_2K; break;
+ case 1: fep->transmission_mode = TRANSMISSION_MODE_8K; break;
+ /* case 2: fep->transmission_mode = TRANSMISSION_MODE_4K; break; */
+ }
+
+ switch (tps & 0x3) {
+ case 0: fep->guard_interval = GUARD_INTERVAL_1_32; break;
+ case 1: fep->guard_interval = GUARD_INTERVAL_1_16; break;
+ case 2: fep->guard_interval = GUARD_INTERVAL_1_8; break;
+ case 3: fep->guard_interval = GUARD_INTERVAL_1_4; break;
+ }
+
+ switch ((tps >> 14) & 0x3) {
+ case 0: fep->modulation = QPSK; break;
+ case 1: fep->modulation = QAM_16; break;
+ case 2:
+ default: fep->modulation = QAM_64; break;
+ }
+
+ /* as long as the frontend_param structure is fixed for hierarchical transmission I refuse to use it */
+ /* (tps >> 13) & 0x1 == hrch is used, (tps >> 10) & 0x7 == alpha */
+
+ fep->hierarchy = HIERARCHY_NONE;
+ switch ((tps >> 5) & 0x7) {
+ case 1: fep->code_rate_HP = FEC_1_2; break;
+ case 2: fep->code_rate_HP = FEC_2_3; break;
+ case 3: fep->code_rate_HP = FEC_3_4; break;
+ case 5: fep->code_rate_HP = FEC_5_6; break;
+ case 7:
+ default: fep->code_rate_HP = FEC_7_8; break;
+
+ }
+
+ switch ((tps >> 2) & 0x7) {
+ case 1: fep->code_rate_LP = FEC_1_2; break;
+ case 2: fep->code_rate_LP = FEC_2_3; break;
+ case 3: fep->code_rate_LP = FEC_3_4; break;
+ case 5: fep->code_rate_LP = FEC_5_6; break;
+ case 7:
+ default: fep->code_rate_LP = FEC_7_8; break;
+ }
+
+ /* native interleaver: (dib7000m_read_word(state, 481) >> 5) & 0x1 */
+
+ return 0;
+}
+
+static int dib7000m_set_frontend(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *fep = &fe->dtv_property_cache;
+ struct dib7000m_state *state = fe->demodulator_priv;
+ int time, ret;
+
+ dib7000m_set_output_mode(state, OUTMODE_HIGH_Z);
+
+ dib7000m_set_bandwidth(state, BANDWIDTH_TO_KHZ(fep->bandwidth_hz));
+
+ if (fe->ops.tuner_ops.set_params)
+ fe->ops.tuner_ops.set_params(fe);
+
+ /* start up the AGC */
+ state->agc_state = 0;
+ do {
+ time = dib7000m_agc_startup(fe);
+ if (time != -1)
+ msleep(time);
+ } while (time != -1);
+
+ if (fep->transmission_mode == TRANSMISSION_MODE_AUTO ||
+ fep->guard_interval == GUARD_INTERVAL_AUTO ||
+ fep->modulation == QAM_AUTO ||
+ fep->code_rate_HP == FEC_AUTO) {
+ int i = 800, found;
+
+ dib7000m_autosearch_start(fe);
+ do {
+ msleep(1);
+ found = dib7000m_autosearch_is_irq(fe);
+ } while (found == 0 && i--);
+
+ dprintk("autosearch returns: %d\n", found);
+ if (found == 0 || found == 1)
+ return 0; // no channel found
+
+ dib7000m_get_frontend(fe, fep);
+ }
+
+ ret = dib7000m_tune(fe);
+
+ /* make this a config parameter */
+ dib7000m_set_output_mode(state, OUTMODE_MPEG2_FIFO);
+ return ret;
+}
+
+static int dib7000m_read_status(struct dvb_frontend *fe, enum fe_status *stat)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ u16 lock = dib7000m_read_word(state, 535);
+
+ *stat = 0;
+
+ if (lock & 0x8000)
+ *stat |= FE_HAS_SIGNAL;
+ if (lock & 0x3000)
+ *stat |= FE_HAS_CARRIER;
+ if (lock & 0x0100)
+ *stat |= FE_HAS_VITERBI;
+ if (lock & 0x0010)
+ *stat |= FE_HAS_SYNC;
+ if (lock & 0x0008)
+ *stat |= FE_HAS_LOCK;
+
+ return 0;
+}
+
+static int dib7000m_read_ber(struct dvb_frontend *fe, u32 *ber)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ *ber = (dib7000m_read_word(state, 526) << 16) | dib7000m_read_word(state, 527);
+ return 0;
+}
+
+static int dib7000m_read_unc_blocks(struct dvb_frontend *fe, u32 *unc)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ *unc = dib7000m_read_word(state, 534);
+ return 0;
+}
+
+static int dib7000m_read_signal_strength(struct dvb_frontend *fe, u16 *strength)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ u16 val = dib7000m_read_word(state, 390);
+ *strength = 65535 - val;
+ return 0;
+}
+
+static int dib7000m_read_snr(struct dvb_frontend* fe, u16 *snr)
+{
+ *snr = 0x0000;
+ return 0;
+}
+
+static int dib7000m_fe_get_tune_settings(struct dvb_frontend* fe, struct dvb_frontend_tune_settings *tune)
+{
+ tune->min_delay_ms = 1000;
+ return 0;
+}
+
+static void dib7000m_release(struct dvb_frontend *demod)
+{
+ struct dib7000m_state *st = demod->demodulator_priv;
+ dibx000_exit_i2c_master(&st->i2c_master);
+ kfree(st);
+}
+
+struct i2c_adapter * dib7000m_get_i2c_master(struct dvb_frontend *demod, enum dibx000_i2c_interface intf, int gating)
+{
+ struct dib7000m_state *st = demod->demodulator_priv;
+ return dibx000_get_i2c_adapter(&st->i2c_master, intf, gating);
+}
+EXPORT_SYMBOL(dib7000m_get_i2c_master);
+
+int dib7000m_pid_filter_ctrl(struct dvb_frontend *fe, u8 onoff)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ u16 val = dib7000m_read_word(state, 294 + state->reg_offs) & 0xffef;
+ val |= (onoff & 0x1) << 4;
+ dprintk("PID filter enabled %d\n", onoff);
+ return dib7000m_write_word(state, 294 + state->reg_offs, val);
+}
+EXPORT_SYMBOL(dib7000m_pid_filter_ctrl);
+
+int dib7000m_pid_filter(struct dvb_frontend *fe, u8 id, u16 pid, u8 onoff)
+{
+ struct dib7000m_state *state = fe->demodulator_priv;
+ dprintk("PID filter: index %x, PID %d, OnOff %d\n", id, pid, onoff);
+ return dib7000m_write_word(state, 300 + state->reg_offs + id,
+ onoff ? (1 << 13) | pid : 0);
+}
+EXPORT_SYMBOL(dib7000m_pid_filter);
+
+#if 0
+/* used with some prototype boards */
+int dib7000m_i2c_enumeration(struct i2c_adapter *i2c, int no_of_demods,
+ u8 default_addr, struct dib7000m_config cfg[])
+{
+ struct dib7000m_state st = { .i2c_adap = i2c };
+ int k = 0;
+ u8 new_addr = 0;
+
+ for (k = no_of_demods-1; k >= 0; k--) {
+ st.cfg = cfg[k];
+
+ /* designated i2c address */
+ new_addr = (0x40 + k) << 1;
+ st.i2c_addr = new_addr;
+ if (dib7000m_identify(&st) != 0) {
+ st.i2c_addr = default_addr;
+ if (dib7000m_identify(&st) != 0) {
+ dprintk("DiB7000M #%d: not identified\n", k);
+ return -EIO;
+ }
+ }
+
+ /* start diversity to pull_down div_str - just for i2c-enumeration */
+ dib7000m_set_output_mode(&st, OUTMODE_DIVERSITY);
+
+ dib7000m_write_word(&st, 1796, 0x0); // select DVB-T output
+
+ /* set new i2c address and force divstart */
+ dib7000m_write_word(&st, 1794, (new_addr << 2) | 0x2);
+
+ dprintk("IC %d initialized (to i2c_address 0x%x)\n", k, new_addr);
+ }
+
+ for (k = 0; k < no_of_demods; k++) {
+ st.cfg = cfg[k];
+ st.i2c_addr = (0x40 + k) << 1;
+
+ // unforce divstr
+ dib7000m_write_word(&st,1794, st.i2c_addr << 2);
+
+ /* deactivate div - it was just for i2c-enumeration */
+ dib7000m_set_output_mode(&st, OUTMODE_HIGH_Z);
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(dib7000m_i2c_enumeration);
+#endif
+
+static const struct dvb_frontend_ops dib7000m_ops;
+struct dvb_frontend * dib7000m_attach(struct i2c_adapter *i2c_adap, u8 i2c_addr, struct dib7000m_config *cfg)
+{
+ struct dvb_frontend *demod;
+ struct dib7000m_state *st;
+ st = kzalloc(sizeof(struct dib7000m_state), GFP_KERNEL);
+ if (st == NULL)
+ return NULL;
+
+ memcpy(&st->cfg, cfg, sizeof(struct dib7000m_config));
+ st->i2c_adap = i2c_adap;
+ st->i2c_addr = i2c_addr;
+
+ demod = &st->demod;
+ demod->demodulator_priv = st;
+ memcpy(&st->demod.ops, &dib7000m_ops, sizeof(struct dvb_frontend_ops));
+ mutex_init(&st->i2c_buffer_lock);
+
+ st->timf_default = cfg->bw->timf;
+
+ if (dib7000m_identify(st) != 0)
+ goto error;
+
+ if (st->revision == 0x4000)
+ dibx000_init_i2c_master(&st->i2c_master, DIB7000, st->i2c_adap, st->i2c_addr);
+ else
+ dibx000_init_i2c_master(&st->i2c_master, DIB7000MC, st->i2c_adap, st->i2c_addr);
+
+ dib7000m_demod_reset(st);
+
+ return demod;
+
+error:
+ kfree(st);
+ return NULL;
+}
+EXPORT_SYMBOL(dib7000m_attach);
+
+static const struct dvb_frontend_ops dib7000m_ops = {
+ .delsys = { SYS_DVBT },
+ .info = {
+ .name = "DiBcom 7000MA/MB/PA/PB/MC",
+ .frequency_min_hz = 44250 * kHz,
+ .frequency_max_hz = 867250 * kHz,
+ .frequency_stepsize_hz = 62500,
+ .caps = FE_CAN_INVERSION_AUTO |
+ 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_RECOVER |
+ FE_CAN_HIERARCHY_AUTO,
+ },
+
+ .release = dib7000m_release,
+
+ .init = dib7000m_wakeup,
+ .sleep = dib7000m_sleep,
+
+ .set_frontend = dib7000m_set_frontend,
+ .get_tune_settings = dib7000m_fe_get_tune_settings,
+ .get_frontend = dib7000m_get_frontend,
+
+ .read_status = dib7000m_read_status,
+ .read_ber = dib7000m_read_ber,
+ .read_signal_strength = dib7000m_read_signal_strength,
+ .read_snr = dib7000m_read_snr,
+ .read_ucblocks = dib7000m_read_unc_blocks,
+};
+
+MODULE_AUTHOR("Patrick Boettcher <patrick.boettcher@posteo.de>");
+MODULE_DESCRIPTION("Driver for the DiBcom 7000MA/MB/PA/PB/MC COFDM demodulator");
+MODULE_LICENSE("GPL");