Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target...
[sfrench/cifs-2.6.git] / 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
17 #include "mxl111sf-phy.h"
18 #include "mxl111sf-reg.h"
19
20 int mxl111sf_init_tuner_demod(struct mxl111sf_state *state)
21 {
22         struct mxl111sf_reg_ctrl_info mxl_111_overwrite_default[] = {
23                 {0x07, 0xff, 0x0c},
24                 {0x58, 0xff, 0x9d},
25                 {0x09, 0xff, 0x00},
26                 {0x06, 0xff, 0x06},
27                 {0xc8, 0xff, 0x40}, /* ED_LE_WIN_OLD = 0 */
28                 {0x8d, 0x01, 0x01}, /* NEGATE_Q */
29                 {0x32, 0xff, 0xac}, /* DIG_RFREFSELECT = 12 */
30                 {0x42, 0xff, 0x43}, /* DIG_REG_AMP = 4 */
31                 {0x74, 0xff, 0xc4}, /* SSPUR_FS_PRIO = 4 */
32                 {0x71, 0xff, 0xe6}, /* SPUR_ROT_PRIO_VAL = 1 */
33                 {0x83, 0xff, 0x64}, /* INF_FILT1_THD_SC = 100 */
34                 {0x85, 0xff, 0x64}, /* INF_FILT2_THD_SC = 100 */
35                 {0x88, 0xff, 0xf0}, /* INF_THD = 240 */
36                 {0x6f, 0xf0, 0xb0}, /* DFE_DLY = 11 */
37                 {0x00, 0xff, 0x01}, /* Change to page 1 */
38                 {0x81, 0xff, 0x11}, /* DSM_FERR_BYPASS = 1 */
39                 {0xf4, 0xff, 0x07}, /* DIG_FREQ_CORR = 1 */
40                 {0xd4, 0x1f, 0x0f}, /* SPUR_TEST_NOISE_TH = 15 */
41                 {0xd6, 0xff, 0x0c}, /* SPUR_TEST_NOISE_PAPR = 12 */
42                 {0x00, 0xff, 0x00}, /* Change to page 0 */
43                 {0,    0,    0}
44         };
45
46         mxl_debug("()");
47
48         return mxl111sf_ctrl_program_regs(state, mxl_111_overwrite_default);
49 }
50
51 int mxl1x1sf_soft_reset(struct mxl111sf_state *state)
52 {
53         int ret;
54         mxl_debug("()");
55
56         ret = mxl111sf_write_reg(state, 0xff, 0x00); /* AIC */
57         if (mxl_fail(ret))
58                 goto fail;
59         ret = mxl111sf_write_reg(state, 0x02, 0x01); /* get out of reset */
60         mxl_fail(ret);
61 fail:
62         return ret;
63 }
64
65 int mxl1x1sf_set_device_mode(struct mxl111sf_state *state, int mode)
66 {
67         int ret;
68
69         mxl_debug("(%s)", MXL_SOC_MODE == mode ?
70                 "MXL_SOC_MODE" : "MXL_TUNER_MODE");
71
72         /* set device mode */
73         ret = mxl111sf_write_reg(state, 0x03,
74                                  MXL_SOC_MODE == mode ? 0x01 : 0x00);
75         if (mxl_fail(ret))
76                 goto fail;
77
78         ret = mxl111sf_write_reg_mask(state,
79                                       0x7d, 0x40, MXL_SOC_MODE == mode ?
80                                       0x00 : /* enable impulse noise filter,
81                                                 INF_BYP = 0 */
82                                       0x40); /* disable impulse noise filter,
83                                                 INF_BYP = 1 */
84         if (mxl_fail(ret))
85                 goto fail;
86
87         state->device_mode = mode;
88 fail:
89         return ret;
90 }
91
92 /* power up tuner */
93 int mxl1x1sf_top_master_ctrl(struct mxl111sf_state *state, int onoff)
94 {
95         mxl_debug("(%d)", onoff);
96
97         return mxl111sf_write_reg(state, 0x01, onoff ? 0x01 : 0x00);
98 }
99
100 int mxl111sf_disable_656_port(struct mxl111sf_state *state)
101 {
102         mxl_debug("()");
103
104         return mxl111sf_write_reg_mask(state, 0x12, 0x04, 0x00);
105 }
106
107 int mxl111sf_enable_usb_output(struct mxl111sf_state *state)
108 {
109         mxl_debug("()");
110
111         return mxl111sf_write_reg_mask(state, 0x17, 0x40, 0x00);
112 }
113
114 /* initialize TSIF as input port of MxL1X1SF for MPEG2 data transfer */
115 int mxl111sf_config_mpeg_in(struct mxl111sf_state *state,
116                             unsigned int parallel_serial,
117                             unsigned int msb_lsb_1st,
118                             unsigned int clock_phase,
119                             unsigned int mpeg_valid_pol,
120                             unsigned int mpeg_sync_pol)
121 {
122         int ret;
123         u8 mode, tmp;
124
125         mxl_debug("(%u,%u,%u,%u,%u)", parallel_serial, msb_lsb_1st,
126                   clock_phase, mpeg_valid_pol, mpeg_sync_pol);
127
128         /* Enable PIN MUX */
129         ret = mxl111sf_write_reg(state, V6_PIN_MUX_MODE_REG, V6_ENABLE_PIN_MUX);
130         mxl_fail(ret);
131
132         /* Configure MPEG Clock phase */
133         mxl111sf_read_reg(state, V6_MPEG_IN_CLK_INV_REG, &mode);
134
135         if (clock_phase == TSIF_NORMAL)
136                 mode &= ~V6_INVERTED_CLK_PHASE;
137         else
138                 mode |= V6_INVERTED_CLK_PHASE;
139
140         ret = mxl111sf_write_reg(state, V6_MPEG_IN_CLK_INV_REG, mode);
141         mxl_fail(ret);
142
143         /* Configure data input mode, MPEG Valid polarity, MPEG Sync polarity
144          * Get current configuration */
145         ret = mxl111sf_read_reg(state, V6_MPEG_IN_CTRL_REG, &mode);
146         mxl_fail(ret);
147
148         /* Data Input mode */
149         if (parallel_serial == TSIF_INPUT_PARALLEL) {
150                 /* Disable serial mode */
151                 mode &= ~V6_MPEG_IN_DATA_SERIAL;
152
153                 /* Enable Parallel mode */
154                 mode |= V6_MPEG_IN_DATA_PARALLEL;
155         } else {
156                 /* Disable Parallel mode */
157                 mode &= ~V6_MPEG_IN_DATA_PARALLEL;
158
159                 /* Enable Serial Mode */
160                 mode |= V6_MPEG_IN_DATA_SERIAL;
161
162                 /* If serial interface is chosen, configure
163                    MSB or LSB order in transmission */
164                 ret = mxl111sf_read_reg(state,
165                                         V6_MPEG_INOUT_BIT_ORDER_CTRL_REG,
166                                         &tmp);
167                 mxl_fail(ret);
168
169                 if (msb_lsb_1st == MPEG_SER_MSB_FIRST_ENABLED)
170                         tmp |= V6_MPEG_SER_MSB_FIRST;
171                 else
172                         tmp &= ~V6_MPEG_SER_MSB_FIRST;
173
174                 ret = mxl111sf_write_reg(state,
175                                          V6_MPEG_INOUT_BIT_ORDER_CTRL_REG,
176                                          tmp);
177                 mxl_fail(ret);
178         }
179
180         /* MPEG Sync polarity */
181         if (mpeg_sync_pol == TSIF_NORMAL)
182                 mode &= ~V6_INVERTED_MPEG_SYNC;
183         else
184                 mode |= V6_INVERTED_MPEG_SYNC;
185
186         /* MPEG Valid polarity */
187         if (mpeg_valid_pol == 0)
188                 mode &= ~V6_INVERTED_MPEG_VALID;
189         else
190                 mode |= V6_INVERTED_MPEG_VALID;
191
192         ret = mxl111sf_write_reg(state, V6_MPEG_IN_CTRL_REG, mode);
193         mxl_fail(ret);
194
195         return ret;
196 }
197
198 int mxl111sf_init_i2s_port(struct mxl111sf_state *state, u8 sample_size)
199 {
200         static struct mxl111sf_reg_ctrl_info init_i2s[] = {
201                 {0x1b, 0xff, 0x1e}, /* pin mux mode, Choose 656/I2S input */
202                 {0x15, 0x60, 0x60}, /* Enable I2S */
203                 {0x17, 0xe0, 0x20}, /* Input, MPEG MODE USB,
204                                        Inverted 656 Clock, I2S_SOFT_RESET,
205                                        0 : Normal operation, 1 : Reset State */
206 #if 0
207                 {0x12, 0x01, 0x00}, /* AUDIO_IRQ_CLR (Overflow Indicator) */
208 #endif
209                 {0x00, 0xff, 0x02}, /* Change to Control Page */
210                 {0x26, 0x0d, 0x0d}, /* I2S_MODE & BT656_SRC_SEL for FPGA only */
211                 {0x00, 0xff, 0x00},
212                 {0,    0,    0}
213         };
214         int ret;
215
216         mxl_debug("(0x%02x)", sample_size);
217
218         ret = mxl111sf_ctrl_program_regs(state, init_i2s);
219         if (mxl_fail(ret))
220                 goto fail;
221
222         ret = mxl111sf_write_reg(state, V6_I2S_NUM_SAMPLES_REG, sample_size);
223         mxl_fail(ret);
224 fail:
225         return ret;
226 }
227
228 int mxl111sf_disable_i2s_port(struct mxl111sf_state *state)
229 {
230         static struct mxl111sf_reg_ctrl_info disable_i2s[] = {
231                 {0x15, 0x40, 0x00},
232                 {0,    0,    0}
233         };
234
235         mxl_debug("()");
236
237         return mxl111sf_ctrl_program_regs(state, disable_i2s);
238 }
239
240 int mxl111sf_config_i2s(struct mxl111sf_state *state,
241                         u8 msb_start_pos, u8 data_width)
242 {
243         int ret;
244         u8 tmp;
245
246         mxl_debug("(0x%02x, 0x%02x)", msb_start_pos, data_width);
247
248         ret = mxl111sf_read_reg(state, V6_I2S_STREAM_START_BIT_REG, &tmp);
249         if (mxl_fail(ret))
250                 goto fail;
251
252         tmp &= 0xe0;
253         tmp |= msb_start_pos;
254         ret = mxl111sf_write_reg(state, V6_I2S_STREAM_START_BIT_REG, tmp);
255         if (mxl_fail(ret))
256                 goto fail;
257
258         ret = mxl111sf_read_reg(state, V6_I2S_STREAM_END_BIT_REG, &tmp);
259         if (mxl_fail(ret))
260                 goto fail;
261
262         tmp &= 0xe0;
263         tmp |= data_width;
264         ret = mxl111sf_write_reg(state, V6_I2S_STREAM_END_BIT_REG, tmp);
265         mxl_fail(ret);
266 fail:
267         return ret;
268 }
269
270 int mxl111sf_config_spi(struct mxl111sf_state *state, int onoff)
271 {
272         u8 val;
273         int ret;
274
275         mxl_debug("(%d)", onoff);
276
277         ret = mxl111sf_write_reg(state, 0x00, 0x02);
278         if (mxl_fail(ret))
279                 goto fail;
280
281         ret = mxl111sf_read_reg(state, V8_SPI_MODE_REG, &val);
282         if (mxl_fail(ret))
283                 goto fail;
284
285         if (onoff)
286                 val |= 0x04;
287         else
288                 val &= ~0x04;
289
290         ret = mxl111sf_write_reg(state, V8_SPI_MODE_REG, val);
291         if (mxl_fail(ret))
292                 goto fail;
293
294         ret = mxl111sf_write_reg(state, 0x00, 0x00);
295         mxl_fail(ret);
296 fail:
297         return ret;
298 }
299
300 int mxl111sf_idac_config(struct mxl111sf_state *state,
301                          u8 control_mode, u8 current_setting,
302                          u8 current_value, u8 hysteresis_value)
303 {
304         int ret;
305         u8 val;
306         /* current value will be set for both automatic & manual IDAC control */
307         val = current_value;
308
309         if (control_mode == IDAC_MANUAL_CONTROL) {
310                 /* enable manual control of IDAC */
311                 val |= IDAC_MANUAL_CONTROL_BIT_MASK;
312
313                 if (current_setting == IDAC_CURRENT_SINKING_ENABLE)
314                         /* enable current sinking in manual mode */
315                         val |= IDAC_CURRENT_SINKING_BIT_MASK;
316                 else
317                         /* disable current sinking in manual mode */
318                         val &= ~IDAC_CURRENT_SINKING_BIT_MASK;
319         } else {
320                 /* disable manual control of IDAC */
321                 val &= ~IDAC_MANUAL_CONTROL_BIT_MASK;
322
323                 /* set hysteresis value  reg: 0x0B<5:0> */
324                 ret = mxl111sf_write_reg(state, V6_IDAC_HYSTERESIS_REG,
325                                          (hysteresis_value & 0x3F));
326                 mxl_fail(ret);
327         }
328
329         ret = mxl111sf_write_reg(state, V6_IDAC_SETTINGS_REG, val);
330         mxl_fail(ret);
331
332         return ret;
333 }