--- /dev/null
+/*
+ * mxl5007t.c - driver for the MaxLinear MxL5007T silicon tuner
+ *
+ * Copyright (C) 2008, 2009 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/i2c.h>
+#include <linux/types.h>
+#include <linux/videodev2.h>
+#include "tuner-i2c.h"
+#include "mxl5007t.h"
+
+static DEFINE_MUTEX(mxl5007t_list_mutex);
+static LIST_HEAD(hybrid_tuner_instance_list);
+
+static int mxl5007t_debug;
+module_param_named(debug, mxl5007t_debug, int, 0644);
+MODULE_PARM_DESC(debug, "set debug level");
+
+/* ------------------------------------------------------------------------- */
+
+#define mxl_printk(kern, fmt, arg...) \
+ printk(kern "%s: " fmt "\n", __func__, ##arg)
+
+#define mxl_err(fmt, arg...) \
+ mxl_printk(KERN_ERR, "%d: " fmt, __LINE__, ##arg)
+
+#define mxl_warn(fmt, arg...) \
+ mxl_printk(KERN_WARNING, fmt, ##arg)
+
+#define mxl_info(fmt, arg...) \
+ mxl_printk(KERN_INFO, fmt, ##arg)
+
+#define mxl_debug(fmt, arg...) \
+({ \
+ if (mxl5007t_debug) \
+ mxl_printk(KERN_DEBUG, fmt, ##arg); \
+})
+
+#define mxl_fail(ret) \
+({ \
+ int __ret; \
+ __ret = (ret < 0); \
+ if (__ret) \
+ mxl_printk(KERN_ERR, "error %d on line %d", \
+ ret, __LINE__); \
+ __ret; \
+})
+
+/* ------------------------------------------------------------------------- */
+
+#define MHz 1000000
+
+enum mxl5007t_mode {
+ MxL_MODE_ISDBT = 0,
+ MxL_MODE_DVBT = 1,
+ MxL_MODE_ATSC = 2,
+ MxL_MODE_CABLE = 0x10,
+};
+
+enum mxl5007t_chip_version {
+ MxL_UNKNOWN_ID = 0x00,
+ MxL_5007_V1_F1 = 0x11,
+ MxL_5007_V1_F2 = 0x12,
+ MxL_5007_V4 = 0x14,
+ MxL_5007_V2_100_F1 = 0x21,
+ MxL_5007_V2_100_F2 = 0x22,
+ MxL_5007_V2_200_F1 = 0x23,
+ MxL_5007_V2_200_F2 = 0x24,
+};
+
+struct reg_pair_t {
+ u8 reg;
+ u8 val;
+};
+
+/* ------------------------------------------------------------------------- */
+
+static struct reg_pair_t init_tab[] = {
+ { 0x02, 0x06 },
+ { 0x03, 0x48 },
+ { 0x05, 0x04 },
+ { 0x06, 0x10 },
+ { 0x2e, 0x15 }, /* OVERRIDE */
+ { 0x30, 0x10 }, /* OVERRIDE */
+ { 0x45, 0x58 }, /* OVERRIDE */
+ { 0x48, 0x19 }, /* OVERRIDE */
+ { 0x52, 0x03 }, /* OVERRIDE */
+ { 0x53, 0x44 }, /* OVERRIDE */
+ { 0x6a, 0x4b }, /* OVERRIDE */
+ { 0x76, 0x00 }, /* OVERRIDE */
+ { 0x78, 0x18 }, /* OVERRIDE */
+ { 0x7a, 0x17 }, /* OVERRIDE */
+ { 0x85, 0x06 }, /* OVERRIDE */
+ { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */
+ { 0, 0 }
+};
+
+static struct reg_pair_t init_tab_cable[] = {
+ { 0x02, 0x06 },
+ { 0x03, 0x48 },
+ { 0x05, 0x04 },
+ { 0x06, 0x10 },
+ { 0x09, 0x3f },
+ { 0x0a, 0x3f },
+ { 0x0b, 0x3f },
+ { 0x2e, 0x15 }, /* OVERRIDE */
+ { 0x30, 0x10 }, /* OVERRIDE */
+ { 0x45, 0x58 }, /* OVERRIDE */
+ { 0x48, 0x19 }, /* OVERRIDE */
+ { 0x52, 0x03 }, /* OVERRIDE */
+ { 0x53, 0x44 }, /* OVERRIDE */
+ { 0x6a, 0x4b }, /* OVERRIDE */
+ { 0x76, 0x00 }, /* OVERRIDE */
+ { 0x78, 0x18 }, /* OVERRIDE */
+ { 0x7a, 0x17 }, /* OVERRIDE */
+ { 0x85, 0x06 }, /* OVERRIDE */
+ { 0x01, 0x01 }, /* TOP_MASTER_ENABLE */
+ { 0, 0 }
+};
+
+/* ------------------------------------------------------------------------- */
+
+static struct reg_pair_t reg_pair_rftune[] = {
+ { 0x0f, 0x00 }, /* abort tune */
+ { 0x0c, 0x15 },
+ { 0x0d, 0x40 },
+ { 0x0e, 0x0e },
+ { 0x1f, 0x87 }, /* OVERRIDE */
+ { 0x20, 0x1f }, /* OVERRIDE */
+ { 0x21, 0x87 }, /* OVERRIDE */
+ { 0x22, 0x1f }, /* OVERRIDE */
+ { 0x80, 0x01 }, /* freq dependent */
+ { 0x0f, 0x01 }, /* start tune */
+ { 0, 0 }
+};
+
+/* ------------------------------------------------------------------------- */
+
+struct mxl5007t_state {
+ struct list_head hybrid_tuner_instance_list;
+ struct tuner_i2c_props i2c_props;
+
+ struct mutex lock;
+
+ struct mxl5007t_config *config;
+
+ enum mxl5007t_chip_version chip_id;
+
+ struct reg_pair_t tab_init[ARRAY_SIZE(init_tab)];
+ struct reg_pair_t tab_init_cable[ARRAY_SIZE(init_tab_cable)];
+ struct reg_pair_t tab_rftune[ARRAY_SIZE(reg_pair_rftune)];
+
+ enum mxl5007t_if_freq if_freq;
+
+ u32 frequency;
+ u32 bandwidth;
+};
+
+/* ------------------------------------------------------------------------- */
+
+/* called by _init and _rftun to manipulate the register arrays */
+
+static void set_reg_bits(struct reg_pair_t *reg_pair, u8 reg, u8 mask, u8 val)
+{
+ unsigned int i = 0;
+
+ while (reg_pair[i].reg || reg_pair[i].val) {
+ if (reg_pair[i].reg == reg) {
+ reg_pair[i].val &= ~mask;
+ reg_pair[i].val |= val;
+ }
+ i++;
+
+ }
+ return;
+}
+
+static void copy_reg_bits(struct reg_pair_t *reg_pair1,
+ struct reg_pair_t *reg_pair2)
+{
+ unsigned int i, j;
+
+ i = j = 0;
+
+ while (reg_pair1[i].reg || reg_pair1[i].val) {
+ while (reg_pair2[j].reg || reg_pair2[j].val) {
+ if (reg_pair1[i].reg != reg_pair2[j].reg) {
+ j++;
+ continue;
+ }
+ reg_pair2[j].val = reg_pair1[i].val;
+ break;
+ }
+ i++;
+ }
+ return;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static void mxl5007t_set_mode_bits(struct mxl5007t_state *state,
+ enum mxl5007t_mode mode,
+ s32 if_diff_out_level)
+{
+ switch (mode) {
+ case MxL_MODE_ATSC:
+ set_reg_bits(state->tab_init, 0x06, 0x1f, 0x12);
+ break;
+ case MxL_MODE_DVBT:
+ set_reg_bits(state->tab_init, 0x06, 0x1f, 0x11);
+ break;
+ case MxL_MODE_ISDBT:
+ set_reg_bits(state->tab_init, 0x06, 0x1f, 0x10);
+ break;
+ case MxL_MODE_CABLE:
+ set_reg_bits(state->tab_init_cable, 0x09, 0xff, 0xc1);
+ set_reg_bits(state->tab_init_cable, 0x0a, 0xff,
+ 8 - if_diff_out_level);
+ set_reg_bits(state->tab_init_cable, 0x0b, 0xff, 0x17);
+ break;
+ default:
+ mxl_fail(-EINVAL);
+ }
+ return;
+}
+
+static void mxl5007t_set_if_freq_bits(struct mxl5007t_state *state,
+ enum mxl5007t_if_freq if_freq,
+ int invert_if)
+{
+ u8 val;
+
+ switch (if_freq) {
+ case MxL_IF_4_MHZ:
+ val = 0x00;
+ break;
+ case MxL_IF_4_5_MHZ:
+ val = 0x02;
+ break;
+ case MxL_IF_4_57_MHZ:
+ val = 0x03;
+ break;
+ case MxL_IF_5_MHZ:
+ val = 0x04;
+ break;
+ case MxL_IF_5_38_MHZ:
+ val = 0x05;
+ break;
+ case MxL_IF_6_MHZ:
+ val = 0x06;
+ break;
+ case MxL_IF_6_28_MHZ:
+ val = 0x07;
+ break;
+ case MxL_IF_9_1915_MHZ:
+ val = 0x08;
+ break;
+ case MxL_IF_35_25_MHZ:
+ val = 0x09;
+ break;
+ case MxL_IF_36_15_MHZ:
+ val = 0x0a;
+ break;
+ case MxL_IF_44_MHZ:
+ val = 0x0b;
+ break;
+ default:
+ mxl_fail(-EINVAL);
+ return;
+ }
+ set_reg_bits(state->tab_init, 0x02, 0x0f, val);
+
+ /* set inverted IF or normal IF */
+ set_reg_bits(state->tab_init, 0x02, 0x10, invert_if ? 0x10 : 0x00);
+
+ state->if_freq = if_freq;
+
+ return;
+}
+
+static void mxl5007t_set_xtal_freq_bits(struct mxl5007t_state *state,
+ enum mxl5007t_xtal_freq xtal_freq)
+{
+ switch (xtal_freq) {
+ case MxL_XTAL_16_MHZ:
+ /* select xtal freq & ref freq */
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x00);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x00);
+ break;
+ case MxL_XTAL_20_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x10);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x01);
+ break;
+ case MxL_XTAL_20_25_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x20);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x02);
+ break;
+ case MxL_XTAL_20_48_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x30);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x03);
+ break;
+ case MxL_XTAL_24_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x40);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x04);
+ break;
+ case MxL_XTAL_25_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x50);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x05);
+ break;
+ case MxL_XTAL_25_14_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x60);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x06);
+ break;
+ case MxL_XTAL_27_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x70);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x07);
+ break;
+ case MxL_XTAL_28_8_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x80);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x08);
+ break;
+ case MxL_XTAL_32_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0x90);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x09);
+ break;
+ case MxL_XTAL_40_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0xa0);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0a);
+ break;
+ case MxL_XTAL_44_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0xb0);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0b);
+ break;
+ case MxL_XTAL_48_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0xc0);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0c);
+ break;
+ case MxL_XTAL_49_3811_MHZ:
+ set_reg_bits(state->tab_init, 0x03, 0xf0, 0xd0);
+ set_reg_bits(state->tab_init, 0x05, 0x0f, 0x0d);
+ break;
+ default:
+ mxl_fail(-EINVAL);
+ return;
+ }
+
+ return;
+}
+
+static struct reg_pair_t *mxl5007t_calc_init_regs(struct mxl5007t_state *state,
+ enum mxl5007t_mode mode)
+{
+ struct mxl5007t_config *cfg = state->config;
+
+ memcpy(&state->tab_init, &init_tab, sizeof(init_tab));
+ memcpy(&state->tab_init_cable, &init_tab_cable, sizeof(init_tab_cable));
+
+ mxl5007t_set_mode_bits(state, mode, cfg->if_diff_out_level);
+ mxl5007t_set_if_freq_bits(state, cfg->if_freq_hz, cfg->invert_if);
+ mxl5007t_set_xtal_freq_bits(state, cfg->xtal_freq_hz);
+
+ set_reg_bits(state->tab_init, 0x03, 0x08, cfg->clk_out_enable << 3);
+ set_reg_bits(state->tab_init, 0x03, 0x07, cfg->clk_out_amp);
+
+ if (mode >= MxL_MODE_CABLE) {
+ copy_reg_bits(state->tab_init, state->tab_init_cable);
+ return state->tab_init_cable;
+ } else
+ return state->tab_init;
+}
+
+/* ------------------------------------------------------------------------- */
+
+enum mxl5007t_bw_mhz {
+ MxL_BW_6MHz = 6,
+ MxL_BW_7MHz = 7,
+ MxL_BW_8MHz = 8,
+};
+
+static void mxl5007t_set_bw_bits(struct mxl5007t_state *state,
+ enum mxl5007t_bw_mhz bw)
+{
+ u8 val;
+
+ switch (bw) {
+ case MxL_BW_6MHz:
+ val = 0x15; /* set DIG_MODEINDEX, DIG_MODEINDEX_A,
+ * and DIG_MODEINDEX_CSF */
+ break;
+ case MxL_BW_7MHz:
+ val = 0x2a;
+ break;
+ case MxL_BW_8MHz:
+ val = 0x3f;
+ break;
+ default:
+ mxl_fail(-EINVAL);
+ return;
+ }
+ set_reg_bits(state->tab_rftune, 0x0c, 0x3f, val);
+
+ return;
+}
+
+static struct
+reg_pair_t *mxl5007t_calc_rf_tune_regs(struct mxl5007t_state *state,
+ u32 rf_freq, enum mxl5007t_bw_mhz bw)
+{
+ u32 dig_rf_freq = 0;
+ u32 temp;
+ u32 frac_divider = 1000000;
+ unsigned int i;
+
+ memcpy(&state->tab_rftune, ®_pair_rftune, sizeof(reg_pair_rftune));
+
+ mxl5007t_set_bw_bits(state, bw);
+
+ /* Convert RF frequency into 16 bits =>
+ * 10 bit integer (MHz) + 6 bit fraction */
+ dig_rf_freq = rf_freq / MHz;
+
+ temp = rf_freq % MHz;
+
+ for (i = 0; i < 6; i++) {
+ dig_rf_freq <<= 1;
+ frac_divider /= 2;
+ if (temp > frac_divider) {
+ temp -= frac_divider;
+ dig_rf_freq++;
+ }
+ }
+
+ /* add to have shift center point by 7.8124 kHz */
+ if (temp > 7812)
+ dig_rf_freq++;
+
+ set_reg_bits(state->tab_rftune, 0x0d, 0xff, (u8) dig_rf_freq);
+ set_reg_bits(state->tab_rftune, 0x0e, 0xff, (u8) (dig_rf_freq >> 8));
+
+ if (rf_freq >= 333000000)
+ set_reg_bits(state->tab_rftune, 0x80, 0x40, 0x40);
+
+ return state->tab_rftune;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl5007t_write_reg(struct mxl5007t_state *state, u8 reg, u8 val)
+{
+ u8 buf[] = { reg, val };
+ struct i2c_msg msg = { .addr = state->i2c_props.addr, .flags = 0,
+ .buf = buf, .len = 2 };
+ int ret;
+
+ ret = i2c_transfer(state->i2c_props.adap, &msg, 1);
+ if (ret != 1) {
+ mxl_err("failed!");
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int mxl5007t_write_regs(struct mxl5007t_state *state,
+ struct reg_pair_t *reg_pair)
+{
+ unsigned int i = 0;
+ int ret = 0;
+
+ while ((ret == 0) && (reg_pair[i].reg || reg_pair[i].val)) {
+ ret = mxl5007t_write_reg(state,
+ reg_pair[i].reg, reg_pair[i].val);
+ i++;
+ }
+ return ret;
+}
+
+static int mxl5007t_read_reg(struct mxl5007t_state *state, u8 reg, u8 *val)
+{
+ u8 buf[2] = { 0xfb, reg };
+ struct i2c_msg msg[] = {
+ { .addr = state->i2c_props.addr, .flags = 0,
+ .buf = buf, .len = 2 },
+ { .addr = state->i2c_props.addr, .flags = I2C_M_RD,
+ .buf = val, .len = 1 },
+ };
+ int ret;
+
+ ret = i2c_transfer(state->i2c_props.adap, msg, 2);
+ if (ret != 2) {
+ mxl_err("failed!");
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int mxl5007t_soft_reset(struct mxl5007t_state *state)
+{
+ u8 d = 0xff;
+ struct i2c_msg msg = {
+ .addr = state->i2c_props.addr, .flags = 0,
+ .buf = &d, .len = 1
+ };
+ int ret = i2c_transfer(state->i2c_props.adap, &msg, 1);
+
+ if (ret != 1) {
+ mxl_err("failed!");
+ return -EREMOTEIO;
+ }
+ return 0;
+}
+
+static int mxl5007t_tuner_init(struct mxl5007t_state *state,
+ enum mxl5007t_mode mode)
+{
+ struct reg_pair_t *init_regs;
+ int ret;
+
+ /* calculate initialization reg array */
+ init_regs = mxl5007t_calc_init_regs(state, mode);
+
+ ret = mxl5007t_write_regs(state, init_regs);
+ if (mxl_fail(ret))
+ goto fail;
+ mdelay(1);
+fail:
+ return ret;
+}
+
+static int mxl5007t_tuner_rf_tune(struct mxl5007t_state *state, u32 rf_freq_hz,
+ enum mxl5007t_bw_mhz bw)
+{
+ struct reg_pair_t *rf_tune_regs;
+ int ret;
+
+ /* calculate channel change reg array */
+ rf_tune_regs = mxl5007t_calc_rf_tune_regs(state, rf_freq_hz, bw);
+
+ ret = mxl5007t_write_regs(state, rf_tune_regs);
+ if (mxl_fail(ret))
+ goto fail;
+ msleep(3);
+fail:
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl5007t_synth_lock_status(struct mxl5007t_state *state,
+ int *rf_locked, int *ref_locked)
+{
+ u8 d;
+ int ret;
+
+ *rf_locked = 0;
+ *ref_locked = 0;
+
+ ret = mxl5007t_read_reg(state, 0xd8, &d);
+ if (mxl_fail(ret))
+ goto fail;
+
+ if ((d & 0x0c) == 0x0c)
+ *rf_locked = 1;
+
+ if ((d & 0x03) == 0x03)
+ *ref_locked = 1;
+fail:
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl5007t_get_status(struct dvb_frontend *fe, u32 *status)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+ int rf_locked, ref_locked, ret;
+
+ *status = 0;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ ret = mxl5007t_synth_lock_status(state, &rf_locked, &ref_locked);
+ if (mxl_fail(ret))
+ goto fail;
+ mxl_debug("%s%s", rf_locked ? "rf locked " : "",
+ ref_locked ? "ref locked" : "");
+
+ if ((rf_locked) || (ref_locked))
+ *status |= TUNER_STATUS_LOCKED;
+fail:
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl5007t_set_params(struct dvb_frontend *fe)
+{
+ struct dtv_frontend_properties *c = &fe->dtv_property_cache;
+ u32 delsys = c->delivery_system;
+ struct mxl5007t_state *state = fe->tuner_priv;
+ enum mxl5007t_bw_mhz bw;
+ enum mxl5007t_mode mode;
+ int ret;
+ u32 freq = c->frequency;
+
+ switch (delsys) {
+ case SYS_ATSC:
+ mode = MxL_MODE_ATSC;
+ bw = MxL_BW_6MHz;
+ break;
+ case SYS_DVBC_ANNEX_B:
+ mode = MxL_MODE_CABLE;
+ bw = MxL_BW_6MHz;
+ break;
+ case SYS_DVBT:
+ case SYS_DVBT2:
+ mode = MxL_MODE_DVBT;
+ switch (c->bandwidth_hz) {
+ case 6000000:
+ bw = MxL_BW_6MHz;
+ break;
+ case 7000000:
+ bw = MxL_BW_7MHz;
+ break;
+ case 8000000:
+ bw = MxL_BW_8MHz;
+ break;
+ default:
+ return -EINVAL;
+ }
+ break;
+ default:
+ mxl_err("modulation type not supported!");
+ return -EINVAL;
+ }
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ mutex_lock(&state->lock);
+
+ ret = mxl5007t_tuner_init(state, mode);
+ if (mxl_fail(ret))
+ goto fail;
+
+ ret = mxl5007t_tuner_rf_tune(state, freq, bw);
+ if (mxl_fail(ret))
+ goto fail;
+
+ state->frequency = freq;
+ state->bandwidth = c->bandwidth_hz;
+fail:
+ mutex_unlock(&state->lock);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl5007t_init(struct dvb_frontend *fe)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+ int ret;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ /* wake from standby */
+ ret = mxl5007t_write_reg(state, 0x01, 0x01);
+ mxl_fail(ret);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ return ret;
+}
+
+static int mxl5007t_sleep(struct dvb_frontend *fe)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+ int ret;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ /* enter standby mode */
+ ret = mxl5007t_write_reg(state, 0x01, 0x00);
+ mxl_fail(ret);
+ ret = mxl5007t_write_reg(state, 0x0f, 0x00);
+ mxl_fail(ret);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ return ret;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static int mxl5007t_get_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+ *frequency = state->frequency;
+ return 0;
+}
+
+static int mxl5007t_get_bandwidth(struct dvb_frontend *fe, u32 *bandwidth)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+ *bandwidth = state->bandwidth;
+ return 0;
+}
+
+static int mxl5007t_get_if_frequency(struct dvb_frontend *fe, u32 *frequency)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+
+ *frequency = 0;
+
+ switch (state->if_freq) {
+ case MxL_IF_4_MHZ:
+ *frequency = 4000000;
+ break;
+ case MxL_IF_4_5_MHZ:
+ *frequency = 4500000;
+ break;
+ case MxL_IF_4_57_MHZ:
+ *frequency = 4570000;
+ break;
+ case MxL_IF_5_MHZ:
+ *frequency = 5000000;
+ break;
+ case MxL_IF_5_38_MHZ:
+ *frequency = 5380000;
+ break;
+ case MxL_IF_6_MHZ:
+ *frequency = 6000000;
+ break;
+ case MxL_IF_6_28_MHZ:
+ *frequency = 6280000;
+ break;
+ case MxL_IF_9_1915_MHZ:
+ *frequency = 9191500;
+ break;
+ case MxL_IF_35_25_MHZ:
+ *frequency = 35250000;
+ break;
+ case MxL_IF_36_15_MHZ:
+ *frequency = 36150000;
+ break;
+ case MxL_IF_44_MHZ:
+ *frequency = 44000000;
+ break;
+ }
+ return 0;
+}
+
+static int mxl5007t_release(struct dvb_frontend *fe)
+{
+ struct mxl5007t_state *state = fe->tuner_priv;
+
+ mutex_lock(&mxl5007t_list_mutex);
+
+ if (state)
+ hybrid_tuner_release_state(state);
+
+ mutex_unlock(&mxl5007t_list_mutex);
+
+ fe->tuner_priv = NULL;
+
+ return 0;
+}
+
+/* ------------------------------------------------------------------------- */
+
+static struct dvb_tuner_ops mxl5007t_tuner_ops = {
+ .info = {
+ .name = "MaxLinear MxL5007T",
+ },
+ .init = mxl5007t_init,
+ .sleep = mxl5007t_sleep,
+ .set_params = mxl5007t_set_params,
+ .get_status = mxl5007t_get_status,
+ .get_frequency = mxl5007t_get_frequency,
+ .get_bandwidth = mxl5007t_get_bandwidth,
+ .release = mxl5007t_release,
+ .get_if_frequency = mxl5007t_get_if_frequency,
+};
+
+static int mxl5007t_get_chip_id(struct mxl5007t_state *state)
+{
+ char *name;
+ int ret;
+ u8 id;
+
+ ret = mxl5007t_read_reg(state, 0xd9, &id);
+ if (mxl_fail(ret))
+ goto fail;
+
+ switch (id) {
+ case MxL_5007_V1_F1:
+ name = "MxL5007.v1.f1";
+ break;
+ case MxL_5007_V1_F2:
+ name = "MxL5007.v1.f2";
+ break;
+ case MxL_5007_V2_100_F1:
+ name = "MxL5007.v2.100.f1";
+ break;
+ case MxL_5007_V2_100_F2:
+ name = "MxL5007.v2.100.f2";
+ break;
+ case MxL_5007_V2_200_F1:
+ name = "MxL5007.v2.200.f1";
+ break;
+ case MxL_5007_V2_200_F2:
+ name = "MxL5007.v2.200.f2";
+ break;
+ case MxL_5007_V4:
+ name = "MxL5007T.v4";
+ break;
+ default:
+ name = "MxL5007T";
+ printk(KERN_WARNING "%s: unknown rev (%02x)\n", __func__, id);
+ id = MxL_UNKNOWN_ID;
+ }
+ state->chip_id = id;
+ mxl_info("%s detected @ %d-%04x", name,
+ i2c_adapter_id(state->i2c_props.adap),
+ state->i2c_props.addr);
+ return 0;
+fail:
+ mxl_warn("unable to identify device @ %d-%04x",
+ i2c_adapter_id(state->i2c_props.adap),
+ state->i2c_props.addr);
+
+ state->chip_id = MxL_UNKNOWN_ID;
+ return ret;
+}
+
+struct dvb_frontend *mxl5007t_attach(struct dvb_frontend *fe,
+ struct i2c_adapter *i2c, u8 addr,
+ struct mxl5007t_config *cfg)
+{
+ struct mxl5007t_state *state = NULL;
+ int instance, ret;
+
+ mutex_lock(&mxl5007t_list_mutex);
+ instance = hybrid_tuner_request_state(struct mxl5007t_state, state,
+ hybrid_tuner_instance_list,
+ i2c, addr, "mxl5007t");
+ switch (instance) {
+ case 0:
+ goto fail;
+ case 1:
+ /* new tuner instance */
+ state->config = cfg;
+
+ mutex_init(&state->lock);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ ret = mxl5007t_get_chip_id(state);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ /* check return value of mxl5007t_get_chip_id */
+ if (mxl_fail(ret))
+ goto fail;
+ break;
+ default:
+ /* existing tuner instance */
+ break;
+ }
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ ret = mxl5007t_soft_reset(state);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ if (mxl_fail(ret))
+ goto fail;
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 1);
+
+ ret = mxl5007t_write_reg(state, 0x04,
+ state->config->loop_thru_enable);
+
+ if (fe->ops.i2c_gate_ctrl)
+ fe->ops.i2c_gate_ctrl(fe, 0);
+
+ if (mxl_fail(ret))
+ goto fail;
+
+ fe->tuner_priv = state;
+
+ mutex_unlock(&mxl5007t_list_mutex);
+
+ memcpy(&fe->ops.tuner_ops, &mxl5007t_tuner_ops,
+ sizeof(struct dvb_tuner_ops));
+
+ return fe;
+fail:
+ mutex_unlock(&mxl5007t_list_mutex);
+
+ mxl5007t_release(fe);
+ return NULL;
+}
+EXPORT_SYMBOL_GPL(mxl5007t_attach);
+MODULE_DESCRIPTION("MaxLinear MxL5007T Silicon IC tuner driver");
+MODULE_AUTHOR("Michael Krufky <mkrufky@linuxtv.org>");
+MODULE_LICENSE("GPL");
+MODULE_VERSION("0.2");
Code Review / kvmfornfv.git / blobdiff