diff options
Diffstat (limited to 'drivers/media/common/tuners/mxl5007t.c')
| -rw-r--r-- | drivers/media/common/tuners/mxl5007t.c | 928 |
1 files changed, 0 insertions, 928 deletions
diff --git a/drivers/media/common/tuners/mxl5007t.c b/drivers/media/common/tuners/mxl5007t.c deleted file mode 100644 index 69e453e..0000000 --- a/drivers/media/common/tuners/mxl5007t.c +++ /dev/null @@ -1,928 +0,0 @@ -/* - * 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, 0x04, 0x01, cfg->loop_thru_enable); - 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; - - ret = mxl5007t_soft_reset(state); - if (mxl_fail(ret)) - goto fail; - - /* 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; - } - 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"); - -/* - * Overrides for Emacs so that we follow Linus's tabbing style. - * --------------------------------------------------------------------------- - * Local variables: - * c-basic-offset: 8 - * End: - */ |
