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9#include <linux/delay.h>
10#include <linux/device.h>
11#include <linux/mod_devicetable.h>
12#include <linux/soundwire/sdw_registers.h>
13#include <linux/module.h>
14
15#include "rt711-sdca.h"
16#include "rt711-sdca-sdw.h"
17
18static bool rt711_sdca_readable_register(struct device *dev, unsigned int reg)
19{
20 switch (reg) {
21 case 0x201a ... 0x2027:
22 case 0x2029 ... 0x202a:
23 case 0x202d ... 0x2034:
24 case 0x2200 ... 0x2204:
25 case 0x2206 ... 0x2212:
26 case 0x2220 ... 0x2223:
27 case 0x2230 ... 0x2239:
28 case 0x2f01 ... 0x2f0f:
29 case 0x2f30 ... 0x2f36:
30 case 0x2f50 ... 0x2f5a:
31 case 0x2f60:
32 case 0x3200 ... 0x3212:
33 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_GE49, RT711_SDCA_CTL_SELECTED_MODE, 0):
34 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_GE49, RT711_SDCA_CTL_DETECTED_MODE, 0):
35 case SDW_SDCA_CTL(FUNC_NUM_HID, RT711_SDCA_ENT_HID01, RT711_SDCA_CTL_HIDTX_CURRENT_OWNER, 0) ...
36 SDW_SDCA_CTL(FUNC_NUM_HID, RT711_SDCA_ENT_HID01, RT711_SDCA_CTL_HIDTX_MESSAGE_LENGTH, 0):
37 case RT711_BUF_ADDR_HID1 ... RT711_BUF_ADDR_HID2:
38 return true;
39 default:
40 return false;
41 }
42}
43
44static bool rt711_sdca_volatile_register(struct device *dev, unsigned int reg)
45{
46 switch (reg) {
47 case 0x201b:
48 case 0x201c:
49 case 0x201d:
50 case 0x201f:
51 case 0x2021:
52 case 0x2023:
53 case 0x2230:
54 case 0x202d ... 0x202f:
55 case 0x2200 ... 0x2212:
56 case RT711_RC_CAL_STATUS:
57 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_GE49, RT711_SDCA_CTL_DETECTED_MODE, 0):
58 case SDW_SDCA_CTL(FUNC_NUM_HID, RT711_SDCA_ENT_HID01, RT711_SDCA_CTL_HIDTX_CURRENT_OWNER, 0) ...
59 SDW_SDCA_CTL(FUNC_NUM_HID, RT711_SDCA_ENT_HID01, RT711_SDCA_CTL_HIDTX_MESSAGE_LENGTH, 0):
60 case RT711_BUF_ADDR_HID1 ... RT711_BUF_ADDR_HID2:
61 return true;
62 default:
63 return false;
64 }
65}
66
67static bool rt711_sdca_mbq_readable_register(struct device *dev, unsigned int reg)
68{
69 switch (reg) {
70 case 0x2000000 ... 0x20000ff:
71 case 0x5600000 ... 0x56000ff:
72 case 0x5700000 ... 0x57000ff:
73 case 0x5800000 ... 0x58000ff:
74 case 0x5900000 ... 0x59000ff:
75 case 0x5b00000 ... 0x5b000ff:
76 case 0x5f00000 ... 0x5f000ff:
77 case 0x6100000 ... 0x61000ff:
78 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_USER_FU05, RT711_SDCA_CTL_FU_VOLUME, CH_L):
79 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_USER_FU05, RT711_SDCA_CTL_FU_VOLUME, CH_R):
80 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT711_SDCA_ENT_USER_FU1E, RT711_SDCA_CTL_FU_VOLUME, CH_L):
81 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT711_SDCA_ENT_USER_FU1E, RT711_SDCA_CTL_FU_VOLUME, CH_R):
82 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_USER_FU0F, RT711_SDCA_CTL_FU_VOLUME, CH_L):
83 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_USER_FU0F, RT711_SDCA_CTL_FU_VOLUME, CH_R):
84 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_PLATFORM_FU44, RT711_SDCA_CTL_FU_CH_GAIN, CH_L):
85 case SDW_SDCA_CTL(FUNC_NUM_JACK_CODEC, RT711_SDCA_ENT_PLATFORM_FU44, RT711_SDCA_CTL_FU_CH_GAIN, CH_R):
86 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT711_SDCA_ENT_PLATFORM_FU15, RT711_SDCA_CTL_FU_CH_GAIN, CH_L):
87 case SDW_SDCA_CTL(FUNC_NUM_MIC_ARRAY, RT711_SDCA_ENT_PLATFORM_FU15, RT711_SDCA_CTL_FU_CH_GAIN, CH_R):
88 return true;
89 default:
90 return false;
91 }
92}
93
94static bool rt711_sdca_mbq_volatile_register(struct device *dev, unsigned int reg)
95{
96 switch (reg) {
97 case 0x2000000:
98 case 0x200001a:
99 case 0x2000046:
100 case 0x2000080:
101 case 0x2000081:
102 case 0x2000083:
103 case 0x5800000:
104 case 0x5800001:
105 case 0x5f00001:
106 case 0x6100008:
107 return true;
108 default:
109 return false;
110 }
111}
112
113static const struct regmap_config rt711_sdca_regmap = {
114 .reg_bits = 32,
115 .val_bits = 8,
116 .readable_reg = rt711_sdca_readable_register,
117 .volatile_reg = rt711_sdca_volatile_register,
118 .max_register = 0x44ffffff,
119 .reg_defaults = rt711_sdca_reg_defaults,
120 .num_reg_defaults = ARRAY_SIZE(rt711_sdca_reg_defaults),
121 .cache_type = REGCACHE_RBTREE,
122 .use_single_read = true,
123 .use_single_write = true,
124};
125
126static const struct regmap_config rt711_sdca_mbq_regmap = {
127 .name = "sdw-mbq",
128 .reg_bits = 32,
129 .val_bits = 16,
130 .readable_reg = rt711_sdca_mbq_readable_register,
131 .volatile_reg = rt711_sdca_mbq_volatile_register,
132 .max_register = 0x40800f12,
133 .reg_defaults = rt711_sdca_mbq_defaults,
134 .num_reg_defaults = ARRAY_SIZE(rt711_sdca_mbq_defaults),
135 .cache_type = REGCACHE_RBTREE,
136 .use_single_read = true,
137 .use_single_write = true,
138};
139
140static int rt711_sdca_update_status(struct sdw_slave *slave,
141 enum sdw_slave_status status)
142{
143 struct rt711_sdca_priv *rt711 = dev_get_drvdata(&slave->dev);
144
145
146 rt711->status = status;
147
148 if (status == SDW_SLAVE_UNATTACHED)
149 rt711->hw_init = false;
150
151 if (status == SDW_SLAVE_ATTACHED) {
152 if (rt711->hs_jack) {
153
154
155
156
157
158
159 sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INTMASK1,
160 SDW_SCP_SDCA_INTMASK_SDCA_0);
161 sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INTMASK2,
162 SDW_SCP_SDCA_INTMASK_SDCA_8);
163 }
164 }
165
166
167
168
169
170 if (rt711->hw_init || rt711->status != SDW_SLAVE_ATTACHED)
171 return 0;
172
173
174 return rt711_sdca_io_init(&slave->dev, slave);
175}
176
177static int rt711_sdca_read_prop(struct sdw_slave *slave)
178{
179 struct sdw_slave_prop *prop = &slave->prop;
180 int nval;
181 int i, j;
182 u32 bit;
183 unsigned long addr;
184 struct sdw_dpn_prop *dpn;
185
186 prop->scp_int1_mask = SDW_SCP_INT1_BUS_CLASH | SDW_SCP_INT1_PARITY;
187 prop->quirks = SDW_SLAVE_QUIRKS_INVALID_INITIAL_PARITY;
188 prop->is_sdca = true;
189
190 prop->paging_support = true;
191
192
193 prop->source_ports = 0x14;
194 prop->sink_ports = 0x8;
195
196 nval = hweight32(prop->source_ports);
197 prop->src_dpn_prop = devm_kcalloc(&slave->dev, nval,
198 sizeof(*prop->src_dpn_prop), GFP_KERNEL);
199 if (!prop->src_dpn_prop)
200 return -ENOMEM;
201
202 i = 0;
203 dpn = prop->src_dpn_prop;
204 addr = prop->source_ports;
205 for_each_set_bit(bit, &addr, 32) {
206 dpn[i].num = bit;
207 dpn[i].type = SDW_DPN_FULL;
208 dpn[i].simple_ch_prep_sm = true;
209 dpn[i].ch_prep_timeout = 10;
210 i++;
211 }
212
213
214 nval = hweight32(prop->sink_ports);
215 prop->sink_dpn_prop = devm_kcalloc(&slave->dev, nval,
216 sizeof(*prop->sink_dpn_prop), GFP_KERNEL);
217 if (!prop->sink_dpn_prop)
218 return -ENOMEM;
219
220 j = 0;
221 dpn = prop->sink_dpn_prop;
222 addr = prop->sink_ports;
223 for_each_set_bit(bit, &addr, 32) {
224 dpn[j].num = bit;
225 dpn[j].type = SDW_DPN_FULL;
226 dpn[j].simple_ch_prep_sm = true;
227 dpn[j].ch_prep_timeout = 10;
228 j++;
229 }
230
231
232 prop->clk_stop_timeout = 20;
233
234
235 prop->wake_capable = 1;
236
237 return 0;
238}
239
240static int rt711_sdca_interrupt_callback(struct sdw_slave *slave,
241 struct sdw_slave_intr_status *status)
242{
243 struct rt711_sdca_priv *rt711 = dev_get_drvdata(&slave->dev);
244 int ret, stat;
245 int count = 0, retry = 3;
246 unsigned int sdca_cascade, scp_sdca_stat1, scp_sdca_stat2 = 0;
247
248 dev_dbg(&slave->dev,
249 "%s control_port_stat=%x, sdca_cascade=%x", __func__,
250 status->control_port, status->sdca_cascade);
251
252 if (cancel_delayed_work_sync(&rt711->jack_detect_work)) {
253 dev_warn(&slave->dev, "%s the pending delayed_work was cancelled", __func__);
254
255 if (rt711->scp_sdca_stat2)
256 scp_sdca_stat2 = rt711->scp_sdca_stat2;
257 }
258
259
260
261
262
263
264
265
266 mutex_lock(&rt711->disable_irq_lock);
267
268 ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT1);
269 if (ret < 0)
270 goto io_error;
271 rt711->scp_sdca_stat1 = ret;
272 ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT2);
273 if (ret < 0)
274 goto io_error;
275 rt711->scp_sdca_stat2 = ret;
276 if (scp_sdca_stat2)
277 rt711->scp_sdca_stat2 |= scp_sdca_stat2;
278
279 do {
280
281 ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT1);
282 if (ret < 0)
283 goto io_error;
284 if (ret & SDW_SCP_SDCA_INTMASK_SDCA_0) {
285 ret = sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INT1,
286 SDW_SCP_SDCA_INTMASK_SDCA_0);
287 if (ret < 0)
288 goto io_error;
289 }
290 ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT2);
291 if (ret < 0)
292 goto io_error;
293 if (ret & SDW_SCP_SDCA_INTMASK_SDCA_8) {
294 ret = sdw_write_no_pm(rt711->slave, SDW_SCP_SDCA_INT2,
295 SDW_SCP_SDCA_INTMASK_SDCA_8);
296 if (ret < 0)
297 goto io_error;
298 }
299
300
301 ret = sdw_read_no_pm(rt711->slave, SDW_DP0_INT);
302 if (ret < 0)
303 goto io_error;
304 sdca_cascade = ret & SDW_DP0_SDCA_CASCADE;
305
306 ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT1);
307 if (ret < 0)
308 goto io_error;
309 scp_sdca_stat1 = ret & SDW_SCP_SDCA_INTMASK_SDCA_0;
310
311 ret = sdw_read_no_pm(rt711->slave, SDW_SCP_SDCA_INT2);
312 if (ret < 0)
313 goto io_error;
314 scp_sdca_stat2 = ret & SDW_SCP_SDCA_INTMASK_SDCA_8;
315
316 stat = scp_sdca_stat1 || scp_sdca_stat2 || sdca_cascade;
317
318 count++;
319 } while (stat != 0 && count < retry);
320
321 if (stat)
322 dev_warn(&slave->dev,
323 "%s scp_sdca_stat1=0x%x, scp_sdca_stat2=0x%x\n", __func__,
324 rt711->scp_sdca_stat1, rt711->scp_sdca_stat2);
325
326 if (status->sdca_cascade && !rt711->disable_irq)
327 mod_delayed_work(system_power_efficient_wq,
328 &rt711->jack_detect_work, msecs_to_jiffies(30));
329
330 mutex_unlock(&rt711->disable_irq_lock);
331
332 return 0;
333
334io_error:
335 mutex_unlock(&rt711->disable_irq_lock);
336 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
337 return ret;
338}
339
340static struct sdw_slave_ops rt711_sdca_slave_ops = {
341 .read_prop = rt711_sdca_read_prop,
342 .interrupt_callback = rt711_sdca_interrupt_callback,
343 .update_status = rt711_sdca_update_status,
344};
345
346static int rt711_sdca_sdw_probe(struct sdw_slave *slave,
347 const struct sdw_device_id *id)
348{
349 struct regmap *regmap, *mbq_regmap;
350
351
352 mbq_regmap = devm_regmap_init_sdw_mbq(slave, &rt711_sdca_mbq_regmap);
353 if (IS_ERR(mbq_regmap))
354 return PTR_ERR(mbq_regmap);
355
356 regmap = devm_regmap_init_sdw(slave, &rt711_sdca_regmap);
357 if (IS_ERR(regmap))
358 return PTR_ERR(regmap);
359
360 return rt711_sdca_init(&slave->dev, regmap, mbq_regmap, slave);
361}
362
363static int rt711_sdca_sdw_remove(struct sdw_slave *slave)
364{
365 struct rt711_sdca_priv *rt711 = dev_get_drvdata(&slave->dev);
366
367 if (rt711 && rt711->hw_init) {
368 cancel_delayed_work_sync(&rt711->jack_detect_work);
369 cancel_delayed_work_sync(&rt711->jack_btn_check_work);
370 }
371
372 return 0;
373}
374
375static const struct sdw_device_id rt711_sdca_id[] = {
376 SDW_SLAVE_ENTRY_EXT(0x025d, 0x711, 0x3, 0x1, 0),
377 {},
378};
379MODULE_DEVICE_TABLE(sdw, rt711_sdca_id);
380
381static int __maybe_unused rt711_sdca_dev_suspend(struct device *dev)
382{
383 struct rt711_sdca_priv *rt711 = dev_get_drvdata(dev);
384
385 if (!rt711->hw_init)
386 return 0;
387
388 cancel_delayed_work_sync(&rt711->jack_detect_work);
389 cancel_delayed_work_sync(&rt711->jack_btn_check_work);
390
391 regcache_cache_only(rt711->regmap, true);
392 regcache_cache_only(rt711->mbq_regmap, true);
393
394 return 0;
395}
396
397static int __maybe_unused rt711_sdca_dev_system_suspend(struct device *dev)
398{
399 struct rt711_sdca_priv *rt711_sdca = dev_get_drvdata(dev);
400 struct sdw_slave *slave = dev_to_sdw_dev(dev);
401 int ret1, ret2;
402
403 if (!rt711_sdca->hw_init)
404 return 0;
405
406
407
408
409
410
411 mutex_lock(&rt711_sdca->disable_irq_lock);
412 rt711_sdca->disable_irq = true;
413 ret1 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK1,
414 SDW_SCP_SDCA_INTMASK_SDCA_0, 0);
415 ret2 = sdw_update_no_pm(slave, SDW_SCP_SDCA_INTMASK2,
416 SDW_SCP_SDCA_INTMASK_SDCA_8, 0);
417 mutex_unlock(&rt711_sdca->disable_irq_lock);
418
419 if (ret1 < 0 || ret2 < 0) {
420
421 dev_dbg(&slave->dev, "%s: could not disable SDCA interrupts\n:", __func__);
422 }
423
424 return rt711_sdca_dev_suspend(dev);
425}
426
427#define RT711_PROBE_TIMEOUT 5000
428
429static int __maybe_unused rt711_sdca_dev_resume(struct device *dev)
430{
431 struct sdw_slave *slave = dev_to_sdw_dev(dev);
432 struct rt711_sdca_priv *rt711 = dev_get_drvdata(dev);
433 unsigned long time;
434
435 if (!rt711->first_hw_init)
436 return 0;
437
438 if (!slave->unattach_request)
439 goto regmap_sync;
440
441 time = wait_for_completion_timeout(&slave->initialization_complete,
442 msecs_to_jiffies(RT711_PROBE_TIMEOUT));
443 if (!time) {
444 dev_err(&slave->dev, "Initialization not complete, timed out\n");
445 return -ETIMEDOUT;
446 }
447
448regmap_sync:
449 slave->unattach_request = 0;
450 regcache_cache_only(rt711->regmap, false);
451 regcache_sync(rt711->regmap);
452 regcache_cache_only(rt711->mbq_regmap, false);
453 regcache_sync(rt711->mbq_regmap);
454 return 0;
455}
456
457static const struct dev_pm_ops rt711_sdca_pm = {
458 SET_SYSTEM_SLEEP_PM_OPS(rt711_sdca_dev_system_suspend, rt711_sdca_dev_resume)
459 SET_RUNTIME_PM_OPS(rt711_sdca_dev_suspend, rt711_sdca_dev_resume, NULL)
460};
461
462static struct sdw_driver rt711_sdca_sdw_driver = {
463 .driver = {
464 .name = "rt711-sdca",
465 .owner = THIS_MODULE,
466 .pm = &rt711_sdca_pm,
467 },
468 .probe = rt711_sdca_sdw_probe,
469 .remove = rt711_sdca_sdw_remove,
470 .ops = &rt711_sdca_slave_ops,
471 .id_table = rt711_sdca_id,
472};
473module_sdw_driver(rt711_sdca_sdw_driver);
474
475MODULE_DESCRIPTION("ASoC RT711 SDCA SDW driver");
476MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
477MODULE_LICENSE("GPL");
478
