xref: /openbmc/linux/drivers/acpi/acpica/rsserial.c (revision a2cce7a9)
1 /*******************************************************************************
2  *
3  * Module Name: rsserial - GPIO/serial_bus resource descriptors
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2015, Intel Corp.
9  * All rights reserved.
10  *
11  * Redistribution and use in source and binary forms, with or without
12  * modification, are permitted provided that the following conditions
13  * are met:
14  * 1. Redistributions of source code must retain the above copyright
15  *    notice, this list of conditions, and the following disclaimer,
16  *    without modification.
17  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
18  *    substantially similar to the "NO WARRANTY" disclaimer below
19  *    ("Disclaimer") and any redistribution must be conditioned upon
20  *    including a substantially similar Disclaimer requirement for further
21  *    binary redistribution.
22  * 3. Neither the names of the above-listed copyright holders nor the names
23  *    of any contributors may be used to endorse or promote products derived
24  *    from this software without specific prior written permission.
25  *
26  * Alternatively, this software may be distributed under the terms of the
27  * GNU General Public License ("GPL") version 2 as published by the Free
28  * Software Foundation.
29  *
30  * NO WARRANTY
31  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
32  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
33  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
34  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
35  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
36  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
37  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
38  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
39  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
40  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
41  * POSSIBILITY OF SUCH DAMAGES.
42  */
43 
44 #include <acpi/acpi.h>
45 #include "accommon.h"
46 #include "acresrc.h"
47 
48 #define _COMPONENT          ACPI_RESOURCES
49 ACPI_MODULE_NAME("rsserial")
50 
51 /*******************************************************************************
52  *
53  * acpi_rs_convert_gpio
54  *
55  ******************************************************************************/
56 struct acpi_rsconvert_info acpi_rs_convert_gpio[18] = {
57 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_GPIO,
58 	 ACPI_RS_SIZE(struct acpi_resource_gpio),
59 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_gpio)},
60 
61 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_GPIO,
62 	 sizeof(struct aml_resource_gpio),
63 	 0},
64 
65 	/*
66 	 * These fields are contiguous in both the source and destination:
67 	 * revision_id
68 	 * connection_type
69 	 */
70 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.gpio.revision_id),
71 	 AML_OFFSET(gpio.revision_id),
72 	 2},
73 
74 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.producer_consumer),
75 	 AML_OFFSET(gpio.flags),
76 	 0},
77 
78 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.sharable),
79 	 AML_OFFSET(gpio.int_flags),
80 	 3},
81 
82 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.wake_capable),
83 	 AML_OFFSET(gpio.int_flags),
84 	 4},
85 
86 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.gpio.io_restriction),
87 	 AML_OFFSET(gpio.int_flags),
88 	 0},
89 
90 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.triggering),
91 	 AML_OFFSET(gpio.int_flags),
92 	 0},
93 
94 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.gpio.polarity),
95 	 AML_OFFSET(gpio.int_flags),
96 	 1},
97 
98 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.gpio.pin_config),
99 	 AML_OFFSET(gpio.pin_config),
100 	 1},
101 
102 	/*
103 	 * These fields are contiguous in both the source and destination:
104 	 * drive_strength
105 	 * debounce_timeout
106 	 */
107 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.gpio.drive_strength),
108 	 AML_OFFSET(gpio.drive_strength),
109 	 2},
110 
111 	/* Pin Table */
112 
113 	{ACPI_RSC_COUNT_GPIO_PIN, ACPI_RS_OFFSET(data.gpio.pin_table_length),
114 	 AML_OFFSET(gpio.pin_table_offset),
115 	 AML_OFFSET(gpio.res_source_offset)},
116 
117 	{ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.gpio.pin_table),
118 	 AML_OFFSET(gpio.pin_table_offset),
119 	 0},
120 
121 	/* Resource Source */
122 
123 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.gpio.resource_source.index),
124 	 AML_OFFSET(gpio.res_source_index),
125 	 1},
126 
127 	{ACPI_RSC_COUNT_GPIO_RES,
128 	 ACPI_RS_OFFSET(data.gpio.resource_source.string_length),
129 	 AML_OFFSET(gpio.res_source_offset),
130 	 AML_OFFSET(gpio.vendor_offset)},
131 
132 	{ACPI_RSC_MOVE_GPIO_RES,
133 	 ACPI_RS_OFFSET(data.gpio.resource_source.string_ptr),
134 	 AML_OFFSET(gpio.res_source_offset),
135 	 0},
136 
137 	/* Vendor Data */
138 
139 	{ACPI_RSC_COUNT_GPIO_VEN, ACPI_RS_OFFSET(data.gpio.vendor_length),
140 	 AML_OFFSET(gpio.vendor_length),
141 	 1},
142 
143 	{ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.gpio.vendor_data),
144 	 AML_OFFSET(gpio.vendor_offset),
145 	 0},
146 };
147 
148 /*******************************************************************************
149  *
150  * acpi_rs_convert_i2c_serial_bus
151  *
152  ******************************************************************************/
153 
154 struct acpi_rsconvert_info acpi_rs_convert_i2c_serial_bus[16] = {
155 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_SERIAL_BUS,
156 	 ACPI_RS_SIZE(struct acpi_resource_i2c_serialbus),
157 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_i2c_serial_bus)},
158 
159 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_SERIAL_BUS,
160 	 sizeof(struct aml_resource_i2c_serialbus),
161 	 0},
162 
163 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.revision_id),
164 	 AML_OFFSET(common_serial_bus.revision_id),
165 	 1},
166 
167 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.type),
168 	 AML_OFFSET(common_serial_bus.type),
169 	 1},
170 
171 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.common_serial_bus.slave_mode),
172 	 AML_OFFSET(common_serial_bus.flags),
173 	 0},
174 
175 	{ACPI_RSC_1BITFLAG,
176 	 ACPI_RS_OFFSET(data.common_serial_bus.producer_consumer),
177 	 AML_OFFSET(common_serial_bus.flags),
178 	 1},
179 
180 	{ACPI_RSC_MOVE8,
181 	 ACPI_RS_OFFSET(data.common_serial_bus.type_revision_id),
182 	 AML_OFFSET(common_serial_bus.type_revision_id),
183 	 1},
184 
185 	{ACPI_RSC_MOVE16,
186 	 ACPI_RS_OFFSET(data.common_serial_bus.type_data_length),
187 	 AML_OFFSET(common_serial_bus.type_data_length),
188 	 1},
189 
190 	/* Vendor data */
191 
192 	{ACPI_RSC_COUNT_SERIAL_VEN,
193 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_length),
194 	 AML_OFFSET(common_serial_bus.type_data_length),
195 	 AML_RESOURCE_I2C_MIN_DATA_LEN},
196 
197 	{ACPI_RSC_MOVE_SERIAL_VEN,
198 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_data),
199 	 0,
200 	 sizeof(struct aml_resource_i2c_serialbus)},
201 
202 	/* Resource Source */
203 
204 	{ACPI_RSC_MOVE8,
205 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.index),
206 	 AML_OFFSET(common_serial_bus.res_source_index),
207 	 1},
208 
209 	{ACPI_RSC_COUNT_SERIAL_RES,
210 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_length),
211 	 AML_OFFSET(common_serial_bus.type_data_length),
212 	 sizeof(struct aml_resource_common_serialbus)},
213 
214 	{ACPI_RSC_MOVE_SERIAL_RES,
215 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_ptr),
216 	 AML_OFFSET(common_serial_bus.type_data_length),
217 	 sizeof(struct aml_resource_common_serialbus)},
218 
219 	/* I2C bus type specific */
220 
221 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.i2c_serial_bus.access_mode),
222 	 AML_OFFSET(i2c_serial_bus.type_specific_flags),
223 	 0},
224 
225 	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.i2c_serial_bus.connection_speed),
226 	 AML_OFFSET(i2c_serial_bus.connection_speed),
227 	 1},
228 
229 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.i2c_serial_bus.slave_address),
230 	 AML_OFFSET(i2c_serial_bus.slave_address),
231 	 1},
232 };
233 
234 /*******************************************************************************
235  *
236  * acpi_rs_convert_spi_serial_bus
237  *
238  ******************************************************************************/
239 
240 struct acpi_rsconvert_info acpi_rs_convert_spi_serial_bus[20] = {
241 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_SERIAL_BUS,
242 	 ACPI_RS_SIZE(struct acpi_resource_spi_serialbus),
243 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_spi_serial_bus)},
244 
245 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_SERIAL_BUS,
246 	 sizeof(struct aml_resource_spi_serialbus),
247 	 0},
248 
249 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.revision_id),
250 	 AML_OFFSET(common_serial_bus.revision_id),
251 	 1},
252 
253 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.type),
254 	 AML_OFFSET(common_serial_bus.type),
255 	 1},
256 
257 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.common_serial_bus.slave_mode),
258 	 AML_OFFSET(common_serial_bus.flags),
259 	 0},
260 
261 	{ACPI_RSC_1BITFLAG,
262 	 ACPI_RS_OFFSET(data.common_serial_bus.producer_consumer),
263 	 AML_OFFSET(common_serial_bus.flags),
264 	 1},
265 
266 	{ACPI_RSC_MOVE8,
267 	 ACPI_RS_OFFSET(data.common_serial_bus.type_revision_id),
268 	 AML_OFFSET(common_serial_bus.type_revision_id),
269 	 1},
270 
271 	{ACPI_RSC_MOVE16,
272 	 ACPI_RS_OFFSET(data.common_serial_bus.type_data_length),
273 	 AML_OFFSET(common_serial_bus.type_data_length),
274 	 1},
275 
276 	/* Vendor data */
277 
278 	{ACPI_RSC_COUNT_SERIAL_VEN,
279 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_length),
280 	 AML_OFFSET(common_serial_bus.type_data_length),
281 	 AML_RESOURCE_SPI_MIN_DATA_LEN},
282 
283 	{ACPI_RSC_MOVE_SERIAL_VEN,
284 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_data),
285 	 0,
286 	 sizeof(struct aml_resource_spi_serialbus)},
287 
288 	/* Resource Source */
289 
290 	{ACPI_RSC_MOVE8,
291 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.index),
292 	 AML_OFFSET(common_serial_bus.res_source_index),
293 	 1},
294 
295 	{ACPI_RSC_COUNT_SERIAL_RES,
296 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_length),
297 	 AML_OFFSET(common_serial_bus.type_data_length),
298 	 sizeof(struct aml_resource_common_serialbus)},
299 
300 	{ACPI_RSC_MOVE_SERIAL_RES,
301 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_ptr),
302 	 AML_OFFSET(common_serial_bus.type_data_length),
303 	 sizeof(struct aml_resource_common_serialbus)},
304 
305 	/* Spi bus type specific  */
306 
307 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.spi_serial_bus.wire_mode),
308 	 AML_OFFSET(spi_serial_bus.type_specific_flags),
309 	 0},
310 
311 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.spi_serial_bus.device_polarity),
312 	 AML_OFFSET(spi_serial_bus.type_specific_flags),
313 	 1},
314 
315 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.spi_serial_bus.data_bit_length),
316 	 AML_OFFSET(spi_serial_bus.data_bit_length),
317 	 1},
318 
319 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.spi_serial_bus.clock_phase),
320 	 AML_OFFSET(spi_serial_bus.clock_phase),
321 	 1},
322 
323 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.spi_serial_bus.clock_polarity),
324 	 AML_OFFSET(spi_serial_bus.clock_polarity),
325 	 1},
326 
327 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.spi_serial_bus.device_selection),
328 	 AML_OFFSET(spi_serial_bus.device_selection),
329 	 1},
330 
331 	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.spi_serial_bus.connection_speed),
332 	 AML_OFFSET(spi_serial_bus.connection_speed),
333 	 1},
334 };
335 
336 /*******************************************************************************
337  *
338  * acpi_rs_convert_uart_serial_bus
339  *
340  ******************************************************************************/
341 
342 struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[22] = {
343 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_SERIAL_BUS,
344 	 ACPI_RS_SIZE(struct acpi_resource_uart_serialbus),
345 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_uart_serial_bus)},
346 
347 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_SERIAL_BUS,
348 	 sizeof(struct aml_resource_uart_serialbus),
349 	 0},
350 
351 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.revision_id),
352 	 AML_OFFSET(common_serial_bus.revision_id),
353 	 1},
354 
355 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.type),
356 	 AML_OFFSET(common_serial_bus.type),
357 	 1},
358 
359 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.common_serial_bus.slave_mode),
360 	 AML_OFFSET(common_serial_bus.flags),
361 	 0},
362 
363 	{ACPI_RSC_1BITFLAG,
364 	 ACPI_RS_OFFSET(data.common_serial_bus.producer_consumer),
365 	 AML_OFFSET(common_serial_bus.flags),
366 	 1},
367 
368 	{ACPI_RSC_MOVE8,
369 	 ACPI_RS_OFFSET(data.common_serial_bus.type_revision_id),
370 	 AML_OFFSET(common_serial_bus.type_revision_id),
371 	 1},
372 
373 	{ACPI_RSC_MOVE16,
374 	 ACPI_RS_OFFSET(data.common_serial_bus.type_data_length),
375 	 AML_OFFSET(common_serial_bus.type_data_length),
376 	 1},
377 
378 	/* Vendor data */
379 
380 	{ACPI_RSC_COUNT_SERIAL_VEN,
381 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_length),
382 	 AML_OFFSET(common_serial_bus.type_data_length),
383 	 AML_RESOURCE_UART_MIN_DATA_LEN},
384 
385 	{ACPI_RSC_MOVE_SERIAL_VEN,
386 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_data),
387 	 0,
388 	 sizeof(struct aml_resource_uart_serialbus)},
389 
390 	/* Resource Source */
391 
392 	{ACPI_RSC_MOVE8,
393 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.index),
394 	 AML_OFFSET(common_serial_bus.res_source_index),
395 	 1},
396 
397 	{ACPI_RSC_COUNT_SERIAL_RES,
398 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_length),
399 	 AML_OFFSET(common_serial_bus.type_data_length),
400 	 sizeof(struct aml_resource_common_serialbus)},
401 
402 	{ACPI_RSC_MOVE_SERIAL_RES,
403 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_ptr),
404 	 AML_OFFSET(common_serial_bus.type_data_length),
405 	 sizeof(struct aml_resource_common_serialbus)},
406 
407 	/* Uart bus type specific  */
408 
409 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.flow_control),
410 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
411 	 0},
412 
413 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.stop_bits),
414 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
415 	 2},
416 
417 	{ACPI_RSC_3BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.data_bits),
418 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
419 	 4},
420 
421 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.endian),
422 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
423 	 7},
424 
425 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.uart_serial_bus.parity),
426 	 AML_OFFSET(uart_serial_bus.parity),
427 	 1},
428 
429 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.uart_serial_bus.lines_enabled),
430 	 AML_OFFSET(uart_serial_bus.lines_enabled),
431 	 1},
432 
433 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.uart_serial_bus.rx_fifo_size),
434 	 AML_OFFSET(uart_serial_bus.rx_fifo_size),
435 	 1},
436 
437 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.uart_serial_bus.tx_fifo_size),
438 	 AML_OFFSET(uart_serial_bus.tx_fifo_size),
439 	 1},
440 
441 	{ACPI_RSC_MOVE32,
442 	 ACPI_RS_OFFSET(data.uart_serial_bus.default_baud_rate),
443 	 AML_OFFSET(uart_serial_bus.default_baud_rate),
444 	 1},
445 };
446