LXR linux/drivers/media/usb/dvb-usb-v2/mxl111sf-phy.c

   1/*
   2 *  mxl111sf-phy.c - driver for the MaxLinear MXL111SF
   3 *
   4 *  Copyright (C) 2010-2014 Michael Krufky <mkrufky@linuxtv.org>
   5 *
   6 *  This program is free software; you can redistribute it and/or modify
   7 *  it under the terms of the GNU General Public License as published by
   8 *  the Free Software Foundation; either version 2 of the License, or
   9 *  (at your option) any later version.
  10 *
  11 *  This program is distributed in the hope that it will be useful,
  12 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 *  GNU General Public License for more details.
  15 *
  16 *  You should have received a copy of the GNU General Public License
  17 *  along with this program; if not, write to the Free Software
  18 *  Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  19 */
  20
  21#include "mxl111sf-phy.h"
  22#include "mxl111sf-reg.h"
  23
  24int mxl111sf_init_tuner_demod(struct mxl111sf_state *state)
  25{
  26        struct mxl111sf_reg_ctrl_info mxl_111_overwrite_default[] = {
  27                {0x07, 0xff, 0x0c},
  28                {0x58, 0xff, 0x9d},
  29                {0x09, 0xff, 0x00},
  30                {0x06, 0xff, 0x06},
  31                {0xc8, 0xff, 0x40}, /* ED_LE_WIN_OLD = 0 */
  32                {0x8d, 0x01, 0x01}, /* NEGATE_Q */
  33                {0x32, 0xff, 0xac}, /* DIG_RFREFSELECT = 12 */
  34                {0x42, 0xff, 0x43}, /* DIG_REG_AMP = 4 */
  35                {0x74, 0xff, 0xc4}, /* SSPUR_FS_PRIO = 4 */
  36                {0x71, 0xff, 0xe6}, /* SPUR_ROT_PRIO_VAL = 1 */
  37                {0x83, 0xff, 0x64}, /* INF_FILT1_THD_SC = 100 */
  38                {0x85, 0xff, 0x64}, /* INF_FILT2_THD_SC = 100 */
  39                {0x88, 0xff, 0xf0}, /* INF_THD = 240 */
  40                {0x6f, 0xf0, 0xb0}, /* DFE_DLY = 11 */
  41                {0x00, 0xff, 0x01}, /* Change to page 1 */
  42                {0x81, 0xff, 0x11}, /* DSM_FERR_BYPASS = 1 */
  43                {0xf4, 0xff, 0x07}, /* DIG_FREQ_CORR = 1 */
  44                {0xd4, 0x1f, 0x0f}, /* SPUR_TEST_NOISE_TH = 15 */
  45                {0xd6, 0xff, 0x0c}, /* SPUR_TEST_NOISE_PAPR = 12 */
  46                {0x00, 0xff, 0x00}, /* Change to page 0 */
  47                {0,    0,    0}
  48        };
  49
  50        mxl_debug("()");
  51
  52        return mxl111sf_ctrl_program_regs(state, mxl_111_overwrite_default);
  53}
  54
  55int mxl1x1sf_soft_reset(struct mxl111sf_state *state)
  56{
  57        int ret;
  58        mxl_debug("()");
  59
  60        ret = mxl111sf_write_reg(state, 0xff, 0x00); /* AIC */
  61        if (mxl_fail(ret))
  62                goto fail;
  63        ret = mxl111sf_write_reg(state, 0x02, 0x01); /* get out of reset */
  64        mxl_fail(ret);
  65fail:
  66        return ret;
  67}
  68
  69int mxl1x1sf_set_device_mode(struct mxl111sf_state *state, int mode)
  70{
  71        int ret;
  72
  73        mxl_debug("(%s)", MXL_SOC_MODE == mode ?
  74                "MXL_SOC_MODE" : "MXL_TUNER_MODE");
  75
  76        /* set device mode */
  77        ret = mxl111sf_write_reg(state, 0x03,
  78                                 MXL_SOC_MODE == mode ? 0x01 : 0x00);
  79        if (mxl_fail(ret))
  80                goto fail;
  81
  82        ret = mxl111sf_write_reg_mask(state,
  83                                      0x7d, 0x40, MXL_SOC_MODE == mode ?
  84                                      0x00 : /* enable impulse noise filter,
  85                                                INF_BYP = 0 */
  86                                      0x40); /* disable impulse noise filter,
  87                                                INF_BYP = 1 */
  88        if (mxl_fail(ret))
  89                goto fail;
  90
  91        state->device_mode = mode;
  92fail:
  93        return ret;
  94}
  95
  96/* power up tuner */
  97int mxl1x1sf_top_master_ctrl(struct mxl111sf_state *state, int onoff)
  98{
  99        mxl_debug("(%d)", onoff);
 100
 101        return mxl111sf_write_reg(state, 0x01, onoff ? 0x01 : 0x00);
 102}
 103
 104int mxl111sf_disable_656_port(struct mxl111sf_state *state)
 105{
 106        mxl_debug("()");
 107
 108        return mxl111sf_write_reg_mask(state, 0x12, 0x04, 0x00);
 109}
 110
 111int mxl111sf_enable_usb_output(struct mxl111sf_state *state)
 112{
 113        mxl_debug("()");
 114
 115        return mxl111sf_write_reg_mask(state, 0x17, 0x40, 0x00);
 116}
 117
 118/* initialize TSIF as input port of MxL1X1SF for MPEG2 data transfer */
 119int mxl111sf_config_mpeg_in(struct mxl111sf_state *state,
 120                            unsigned int parallel_serial,
 121                            unsigned int msb_lsb_1st,
 122                            unsigned int clock_phase,
 123                            unsigned int mpeg_valid_pol,
 124                            unsigned int mpeg_sync_pol)
 125{
 126        int ret;
 127        u8 mode, tmp;
 128
 129        mxl_debug("(%u,%u,%u,%u,%u)", parallel_serial, msb_lsb_1st,
 130                  clock_phase, mpeg_valid_pol, mpeg_sync_pol);
 131
 132        /* Enable PIN MUX */
 133        ret = mxl111sf_write_reg(state, V6_PIN_MUX_MODE_REG, V6_ENABLE_PIN_MUX);
 134        mxl_fail(ret);
 135
 136        /* Configure MPEG Clock phase */
 137        mxl111sf_read_reg(state, V6_MPEG_IN_CLK_INV_REG, &mode);
 138
 139        if (clock_phase == TSIF_NORMAL)
 140                mode &= ~V6_INVERTED_CLK_PHASE;
 141        else
 142                mode |= V6_INVERTED_CLK_PHASE;
 143
 144        ret = mxl111sf_write_reg(state, V6_MPEG_IN_CLK_INV_REG, mode);
 145        mxl_fail(ret);
 146
 147        /* Configure data input mode, MPEG Valid polarity, MPEG Sync polarity
 148         * Get current configuration */
 149        ret = mxl111sf_read_reg(state, V6_MPEG_IN_CTRL_REG, &mode);
 150        mxl_fail(ret);
 151
 152        /* Data Input mode */
 153        if (parallel_serial == TSIF_INPUT_PARALLEL) {
 154                /* Disable serial mode */
 155                mode &= ~V6_MPEG_IN_DATA_SERIAL;
 156
 157                /* Enable Parallel mode */
 158                mode |= V6_MPEG_IN_DATA_PARALLEL;
 159        } else {
 160                /* Disable Parallel mode */
 161                mode &= ~V6_MPEG_IN_DATA_PARALLEL;
 162
 163                /* Enable Serial Mode */
 164                mode |= V6_MPEG_IN_DATA_SERIAL;
 165
 166                /* If serial interface is chosen, configure
 167                   MSB or LSB order in transmission */
 168                ret = mxl111sf_read_reg(state,
 169                                        V6_MPEG_INOUT_BIT_ORDER_CTRL_REG,
 170                                        &tmp);
 171                mxl_fail(ret);
 172
 173                if (msb_lsb_1st == MPEG_SER_MSB_FIRST_ENABLED)
 174                        tmp |= V6_MPEG_SER_MSB_FIRST;
 175                else
 176                        tmp &= ~V6_MPEG_SER_MSB_FIRST;
 177
 178                ret = mxl111sf_write_reg(state,
 179                                         V6_MPEG_INOUT_BIT_ORDER_CTRL_REG,
 180                                         tmp);
 181                mxl_fail(ret);
 182        }
 183
 184        /* MPEG Sync polarity */
 185        if (mpeg_sync_pol == TSIF_NORMAL)
 186                mode &= ~V6_INVERTED_MPEG_SYNC;
 187        else
 188                mode |= V6_INVERTED_MPEG_SYNC;
 189
 190        /* MPEG Valid polarity */
 191        if (mpeg_valid_pol == 0)
 192                mode &= ~V6_INVERTED_MPEG_VALID;
 193        else
 194                mode |= V6_INVERTED_MPEG_VALID;
 195
 196        ret = mxl111sf_write_reg(state, V6_MPEG_IN_CTRL_REG, mode);
 197        mxl_fail(ret);
 198
 199        return ret;
 200}
 201
 202int mxl111sf_init_i2s_port(struct mxl111sf_state *state, u8 sample_size)
 203{
 204        static struct mxl111sf_reg_ctrl_info init_i2s[] = {
 205                {0x1b, 0xff, 0x1e}, /* pin mux mode, Choose 656/I2S input */
 206                {0x15, 0x60, 0x60}, /* Enable I2S */
 207                {0x17, 0xe0, 0x20}, /* Input, MPEG MODE USB,
 208                                       Inverted 656 Clock, I2S_SOFT_RESET,
 209                                       0 : Normal operation, 1 : Reset State */
 210#if 0
 211                {0x12, 0x01, 0x00}, /* AUDIO_IRQ_CLR (Overflow Indicator) */
 212#endif
 213                {0x00, 0xff, 0x02}, /* Change to Control Page */
 214                {0x26, 0x0d, 0x0d}, /* I2S_MODE & BT656_SRC_SEL for FPGA only */
 215                {0x00, 0xff, 0x00},
 216                {0,    0,    0}
 217        };
 218        int ret;
 219
 220        mxl_debug("(0x%02x)", sample_size);
 221
 222        ret = mxl111sf_ctrl_program_regs(state, init_i2s);
 223        if (mxl_fail(ret))
 224                goto fail;
 225
 226        ret = mxl111sf_write_reg(state, V6_I2S_NUM_SAMPLES_REG, sample_size);
 227        mxl_fail(ret);
 228fail:
 229        return ret;
 230}
 231
 232int mxl111sf_disable_i2s_port(struct mxl111sf_state *state)
 233{
 234        static struct mxl111sf_reg_ctrl_info disable_i2s[] = {
 235                {0x15, 0x40, 0x00},
 236                {0,    0,    0}
 237        };
 238
 239        mxl_debug("()");
 240
 241        return mxl111sf_ctrl_program_regs(state, disable_i2s);
 242}
 243
 244int mxl111sf_config_i2s(struct mxl111sf_state *state,
 245                        u8 msb_start_pos, u8 data_width)
 246{
 247        int ret;
 248        u8 tmp;
 249
 250        mxl_debug("(0x%02x, 0x%02x)", msb_start_pos, data_width);
 251
 252        ret = mxl111sf_read_reg(state, V6_I2S_STREAM_START_BIT_REG, &tmp);
 253        if (mxl_fail(ret))
 254                goto fail;
 255
 256        tmp &= 0xe0;
 257        tmp |= msb_start_pos;
 258        ret = mxl111sf_write_reg(state, V6_I2S_STREAM_START_BIT_REG, tmp);
 259        if (mxl_fail(ret))
 260                goto fail;
 261
 262        ret = mxl111sf_read_reg(state, V6_I2S_STREAM_END_BIT_REG, &tmp);
 263        if (mxl_fail(ret))
 264                goto fail;
 265
 266        tmp &= 0xe0;
 267        tmp |= data_width;
 268        ret = mxl111sf_write_reg(state, V6_I2S_STREAM_END_BIT_REG, tmp);
 269        mxl_fail(ret);
 270fail:
 271        return ret;
 272}
 273
 274int mxl111sf_config_spi(struct mxl111sf_state *state, int onoff)
 275{
 276        u8 val;
 277        int ret;
 278
 279        mxl_debug("(%d)", onoff);
 280
 281        ret = mxl111sf_write_reg(state, 0x00, 0x02);
 282        if (mxl_fail(ret))
 283                goto fail;
 284
 285        ret = mxl111sf_read_reg(state, V8_SPI_MODE_REG, &val);
 286        if (mxl_fail(ret))
 287                goto fail;
 288
 289        if (onoff)
 290                val |= 0x04;
 291        else
 292                val &= ~0x04;
 293
 294        ret = mxl111sf_write_reg(state, V8_SPI_MODE_REG, val);
 295        if (mxl_fail(ret))
 296                goto fail;
 297
 298        ret = mxl111sf_write_reg(state, 0x00, 0x00);
 299        mxl_fail(ret);
 300fail:
 301        return ret;
 302}
 303
 304int mxl111sf_idac_config(struct mxl111sf_state *state,
 305                         u8 control_mode, u8 current_setting,
 306                         u8 current_value, u8 hysteresis_value)
 307{
 308        int ret;
 309        u8 val;
 310        /* current value will be set for both automatic & manual IDAC control */
 311        val = current_value;
 312
 313        if (control_mode == IDAC_MANUAL_CONTROL) {
 314                /* enable manual control of IDAC */
 315                val |= IDAC_MANUAL_CONTROL_BIT_MASK;
 316
 317                if (current_setting == IDAC_CURRENT_SINKING_ENABLE)
 318                        /* enable current sinking in manual mode */
 319                        val |= IDAC_CURRENT_SINKING_BIT_MASK;
 320                else
 321                        /* disable current sinking in manual mode */
 322                        val &= ~IDAC_CURRENT_SINKING_BIT_MASK;
 323        } else {
 324                /* disable manual control of IDAC */
 325                val &= ~IDAC_MANUAL_CONTROL_BIT_MASK;
 326
 327                /* set hysteresis value  reg: 0x0B<5:0> */
 328                ret = mxl111sf_write_reg(state, V6_IDAC_HYSTERESIS_REG,
 329                                         (hysteresis_value & 0x3F));
 330                mxl_fail(ret);
 331        }
 332
 333        ret = mxl111sf_write_reg(state, V6_IDAC_SETTINGS_REG, val);
 334        mxl_fail(ret);
 335
 336        return ret;
 337}
 338
 339/*
 340 * Local variables:
 341 * c-basic-offset: 8
 342 * End:
 343 */
 344