xref: /openbmc/linux/drivers/acpi/acpica/rsserial.c (revision d0b73b48)
1 /*******************************************************************************
2  *
3  * Module Name: rsserial - GPIO/serial_bus resource descriptors
4  *
5  ******************************************************************************/
6 
7 /*
8  * Copyright (C) 2000 - 2012, 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[17] = {
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_2BITFLAG, ACPI_RS_OFFSET(data.gpio.sharable),
79 	 AML_OFFSET(gpio.int_flags),
80 	 3},
81 
82 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.gpio.io_restriction),
83 	 AML_OFFSET(gpio.int_flags),
84 	 0},
85 
86 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.gpio.triggering),
87 	 AML_OFFSET(gpio.int_flags),
88 	 0},
89 
90 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.gpio.polarity),
91 	 AML_OFFSET(gpio.int_flags),
92 	 1},
93 
94 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.gpio.pin_config),
95 	 AML_OFFSET(gpio.pin_config),
96 	 1},
97 
98 	/*
99 	 * These fields are contiguous in both the source and destination:
100 	 * drive_strength
101 	 * debounce_timeout
102 	 */
103 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.gpio.drive_strength),
104 	 AML_OFFSET(gpio.drive_strength),
105 	 2},
106 
107 	/* Pin Table */
108 
109 	{ACPI_RSC_COUNT_GPIO_PIN, ACPI_RS_OFFSET(data.gpio.pin_table_length),
110 	 AML_OFFSET(gpio.pin_table_offset),
111 	 AML_OFFSET(gpio.res_source_offset)},
112 
113 	{ACPI_RSC_MOVE_GPIO_PIN, ACPI_RS_OFFSET(data.gpio.pin_table),
114 	 AML_OFFSET(gpio.pin_table_offset),
115 	 0},
116 
117 	/* Resource Source */
118 
119 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.gpio.resource_source.index),
120 	 AML_OFFSET(gpio.res_source_index),
121 	 1},
122 
123 	{ACPI_RSC_COUNT_GPIO_RES,
124 	 ACPI_RS_OFFSET(data.gpio.resource_source.string_length),
125 	 AML_OFFSET(gpio.res_source_offset),
126 	 AML_OFFSET(gpio.vendor_offset)},
127 
128 	{ACPI_RSC_MOVE_GPIO_RES,
129 	 ACPI_RS_OFFSET(data.gpio.resource_source.string_ptr),
130 	 AML_OFFSET(gpio.res_source_offset),
131 	 0},
132 
133 	/* Vendor Data */
134 
135 	{ACPI_RSC_COUNT_GPIO_VEN, ACPI_RS_OFFSET(data.gpio.vendor_length),
136 	 AML_OFFSET(gpio.vendor_length),
137 	 1},
138 
139 	{ACPI_RSC_MOVE_GPIO_RES, ACPI_RS_OFFSET(data.gpio.vendor_data),
140 	 AML_OFFSET(gpio.vendor_offset),
141 	 0},
142 };
143 
144 /*******************************************************************************
145  *
146  * acpi_rs_convert_i2c_serial_bus
147  *
148  ******************************************************************************/
149 
150 struct acpi_rsconvert_info acpi_rs_convert_i2c_serial_bus[16] = {
151 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_SERIAL_BUS,
152 	 ACPI_RS_SIZE(struct acpi_resource_i2c_serialbus),
153 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_i2c_serial_bus)},
154 
155 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_SERIAL_BUS,
156 	 sizeof(struct aml_resource_i2c_serialbus),
157 	 0},
158 
159 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.revision_id),
160 	 AML_OFFSET(common_serial_bus.revision_id),
161 	 1},
162 
163 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.type),
164 	 AML_OFFSET(common_serial_bus.type),
165 	 1},
166 
167 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.common_serial_bus.slave_mode),
168 	 AML_OFFSET(common_serial_bus.flags),
169 	 0},
170 
171 	{ACPI_RSC_1BITFLAG,
172 	 ACPI_RS_OFFSET(data.common_serial_bus.producer_consumer),
173 	 AML_OFFSET(common_serial_bus.flags),
174 	 1},
175 
176 	{ACPI_RSC_MOVE8,
177 	 ACPI_RS_OFFSET(data.common_serial_bus.type_revision_id),
178 	 AML_OFFSET(common_serial_bus.type_revision_id),
179 	 1},
180 
181 	{ACPI_RSC_MOVE16,
182 	 ACPI_RS_OFFSET(data.common_serial_bus.type_data_length),
183 	 AML_OFFSET(common_serial_bus.type_data_length),
184 	 1},
185 
186 	/* Vendor data */
187 
188 	{ACPI_RSC_COUNT_SERIAL_VEN,
189 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_length),
190 	 AML_OFFSET(common_serial_bus.type_data_length),
191 	 AML_RESOURCE_I2C_MIN_DATA_LEN},
192 
193 	{ACPI_RSC_MOVE_SERIAL_VEN,
194 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_data),
195 	 0,
196 	 sizeof(struct aml_resource_i2c_serialbus)},
197 
198 	/* Resource Source */
199 
200 	{ACPI_RSC_MOVE8,
201 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.index),
202 	 AML_OFFSET(common_serial_bus.res_source_index),
203 	 1},
204 
205 	{ACPI_RSC_COUNT_SERIAL_RES,
206 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_length),
207 	 AML_OFFSET(common_serial_bus.type_data_length),
208 	 sizeof(struct aml_resource_common_serialbus)},
209 
210 	{ACPI_RSC_MOVE_SERIAL_RES,
211 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_ptr),
212 	 AML_OFFSET(common_serial_bus.type_data_length),
213 	 sizeof(struct aml_resource_common_serialbus)},
214 
215 	/* I2C bus type specific */
216 
217 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.i2c_serial_bus.access_mode),
218 	 AML_OFFSET(i2c_serial_bus.type_specific_flags),
219 	 0},
220 
221 	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.i2c_serial_bus.connection_speed),
222 	 AML_OFFSET(i2c_serial_bus.connection_speed),
223 	 1},
224 
225 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.i2c_serial_bus.slave_address),
226 	 AML_OFFSET(i2c_serial_bus.slave_address),
227 	 1},
228 };
229 
230 /*******************************************************************************
231  *
232  * acpi_rs_convert_spi_serial_bus
233  *
234  ******************************************************************************/
235 
236 struct acpi_rsconvert_info acpi_rs_convert_spi_serial_bus[20] = {
237 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_SERIAL_BUS,
238 	 ACPI_RS_SIZE(struct acpi_resource_spi_serialbus),
239 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_spi_serial_bus)},
240 
241 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_SERIAL_BUS,
242 	 sizeof(struct aml_resource_spi_serialbus),
243 	 0},
244 
245 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.revision_id),
246 	 AML_OFFSET(common_serial_bus.revision_id),
247 	 1},
248 
249 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.type),
250 	 AML_OFFSET(common_serial_bus.type),
251 	 1},
252 
253 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.common_serial_bus.slave_mode),
254 	 AML_OFFSET(common_serial_bus.flags),
255 	 0},
256 
257 	{ACPI_RSC_1BITFLAG,
258 	 ACPI_RS_OFFSET(data.common_serial_bus.producer_consumer),
259 	 AML_OFFSET(common_serial_bus.flags),
260 	 1},
261 
262 	{ACPI_RSC_MOVE8,
263 	 ACPI_RS_OFFSET(data.common_serial_bus.type_revision_id),
264 	 AML_OFFSET(common_serial_bus.type_revision_id),
265 	 1},
266 
267 	{ACPI_RSC_MOVE16,
268 	 ACPI_RS_OFFSET(data.common_serial_bus.type_data_length),
269 	 AML_OFFSET(common_serial_bus.type_data_length),
270 	 1},
271 
272 	/* Vendor data */
273 
274 	{ACPI_RSC_COUNT_SERIAL_VEN,
275 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_length),
276 	 AML_OFFSET(common_serial_bus.type_data_length),
277 	 AML_RESOURCE_SPI_MIN_DATA_LEN},
278 
279 	{ACPI_RSC_MOVE_SERIAL_VEN,
280 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_data),
281 	 0,
282 	 sizeof(struct aml_resource_spi_serialbus)},
283 
284 	/* Resource Source */
285 
286 	{ACPI_RSC_MOVE8,
287 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.index),
288 	 AML_OFFSET(common_serial_bus.res_source_index),
289 	 1},
290 
291 	{ACPI_RSC_COUNT_SERIAL_RES,
292 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_length),
293 	 AML_OFFSET(common_serial_bus.type_data_length),
294 	 sizeof(struct aml_resource_common_serialbus)},
295 
296 	{ACPI_RSC_MOVE_SERIAL_RES,
297 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_ptr),
298 	 AML_OFFSET(common_serial_bus.type_data_length),
299 	 sizeof(struct aml_resource_common_serialbus)},
300 
301 	/* Spi bus type specific  */
302 
303 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.spi_serial_bus.wire_mode),
304 	 AML_OFFSET(spi_serial_bus.type_specific_flags),
305 	 0},
306 
307 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.spi_serial_bus.device_polarity),
308 	 AML_OFFSET(spi_serial_bus.type_specific_flags),
309 	 1},
310 
311 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.spi_serial_bus.data_bit_length),
312 	 AML_OFFSET(spi_serial_bus.data_bit_length),
313 	 1},
314 
315 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.spi_serial_bus.clock_phase),
316 	 AML_OFFSET(spi_serial_bus.clock_phase),
317 	 1},
318 
319 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.spi_serial_bus.clock_polarity),
320 	 AML_OFFSET(spi_serial_bus.clock_polarity),
321 	 1},
322 
323 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.spi_serial_bus.device_selection),
324 	 AML_OFFSET(spi_serial_bus.device_selection),
325 	 1},
326 
327 	{ACPI_RSC_MOVE32, ACPI_RS_OFFSET(data.spi_serial_bus.connection_speed),
328 	 AML_OFFSET(spi_serial_bus.connection_speed),
329 	 1},
330 };
331 
332 /*******************************************************************************
333  *
334  * acpi_rs_convert_uart_serial_bus
335  *
336  ******************************************************************************/
337 
338 struct acpi_rsconvert_info acpi_rs_convert_uart_serial_bus[22] = {
339 	{ACPI_RSC_INITGET, ACPI_RESOURCE_TYPE_SERIAL_BUS,
340 	 ACPI_RS_SIZE(struct acpi_resource_uart_serialbus),
341 	 ACPI_RSC_TABLE_SIZE(acpi_rs_convert_uart_serial_bus)},
342 
343 	{ACPI_RSC_INITSET, ACPI_RESOURCE_NAME_SERIAL_BUS,
344 	 sizeof(struct aml_resource_uart_serialbus),
345 	 0},
346 
347 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.revision_id),
348 	 AML_OFFSET(common_serial_bus.revision_id),
349 	 1},
350 
351 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.common_serial_bus.type),
352 	 AML_OFFSET(common_serial_bus.type),
353 	 1},
354 
355 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.common_serial_bus.slave_mode),
356 	 AML_OFFSET(common_serial_bus.flags),
357 	 0},
358 
359 	{ACPI_RSC_1BITFLAG,
360 	 ACPI_RS_OFFSET(data.common_serial_bus.producer_consumer),
361 	 AML_OFFSET(common_serial_bus.flags),
362 	 1},
363 
364 	{ACPI_RSC_MOVE8,
365 	 ACPI_RS_OFFSET(data.common_serial_bus.type_revision_id),
366 	 AML_OFFSET(common_serial_bus.type_revision_id),
367 	 1},
368 
369 	{ACPI_RSC_MOVE16,
370 	 ACPI_RS_OFFSET(data.common_serial_bus.type_data_length),
371 	 AML_OFFSET(common_serial_bus.type_data_length),
372 	 1},
373 
374 	/* Vendor data */
375 
376 	{ACPI_RSC_COUNT_SERIAL_VEN,
377 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_length),
378 	 AML_OFFSET(common_serial_bus.type_data_length),
379 	 AML_RESOURCE_UART_MIN_DATA_LEN},
380 
381 	{ACPI_RSC_MOVE_SERIAL_VEN,
382 	 ACPI_RS_OFFSET(data.common_serial_bus.vendor_data),
383 	 0,
384 	 sizeof(struct aml_resource_uart_serialbus)},
385 
386 	/* Resource Source */
387 
388 	{ACPI_RSC_MOVE8,
389 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.index),
390 	 AML_OFFSET(common_serial_bus.res_source_index),
391 	 1},
392 
393 	{ACPI_RSC_COUNT_SERIAL_RES,
394 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_length),
395 	 AML_OFFSET(common_serial_bus.type_data_length),
396 	 sizeof(struct aml_resource_common_serialbus)},
397 
398 	{ACPI_RSC_MOVE_SERIAL_RES,
399 	 ACPI_RS_OFFSET(data.common_serial_bus.resource_source.string_ptr),
400 	 AML_OFFSET(common_serial_bus.type_data_length),
401 	 sizeof(struct aml_resource_common_serialbus)},
402 
403 	/* Uart bus type specific  */
404 
405 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.flow_control),
406 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
407 	 0},
408 
409 	{ACPI_RSC_2BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.stop_bits),
410 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
411 	 2},
412 
413 	{ACPI_RSC_3BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.data_bits),
414 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
415 	 4},
416 
417 	{ACPI_RSC_1BITFLAG, ACPI_RS_OFFSET(data.uart_serial_bus.endian),
418 	 AML_OFFSET(uart_serial_bus.type_specific_flags),
419 	 7},
420 
421 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.uart_serial_bus.parity),
422 	 AML_OFFSET(uart_serial_bus.parity),
423 	 1},
424 
425 	{ACPI_RSC_MOVE8, ACPI_RS_OFFSET(data.uart_serial_bus.lines_enabled),
426 	 AML_OFFSET(uart_serial_bus.lines_enabled),
427 	 1},
428 
429 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.uart_serial_bus.rx_fifo_size),
430 	 AML_OFFSET(uart_serial_bus.rx_fifo_size),
431 	 1},
432 
433 	{ACPI_RSC_MOVE16, ACPI_RS_OFFSET(data.uart_serial_bus.tx_fifo_size),
434 	 AML_OFFSET(uart_serial_bus.tx_fifo_size),
435 	 1},
436 
437 	{ACPI_RSC_MOVE32,
438 	 ACPI_RS_OFFSET(data.uart_serial_bus.default_baud_rate),
439 	 AML_OFFSET(uart_serial_bus.default_baud_rate),
440 	 1},
441 };
442