Merge branch 'exynos-drm' of git://git.infradead.org/users/kmpark/linux-samsung into...
[pandora-kernel.git] / drivers / media / dvb / dvb-usb / mxl111sf-phy.c
1 /*
2  *  mxl111sf-phy.c - driver for the MaxLinear MXL111SF
3  *
4  *  Copyright (C) 2010 Michael Krufky <mkrufky@kernellabs.com>
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
24 int 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
55 int 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);
65 fail:
66         return ret;
67 }
68
69 int 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;
92 fail:
93         return ret;
94 }
95
96 /* power up tuner */
97 int 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
104 int 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
111 int 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 */
119 int 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
202 int 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);
228 fail:
229         return ret;
230 }
231
232 int 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
244 int 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);
270 fail:
271         return ret;
272 }
273
274 int 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);
300 fail:
301         return ret;
302 }
303
304 int 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  */