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1
2 /******************************************************************************
3  *
4  * Module Name: amlresrc.h - AML resource descriptors
5  *
6  *****************************************************************************/
7
8 /*
9  * Copyright (C) 2000 - 2012, Intel Corp.
10  * All rights reserved.
11  *
12  * Redistribution and use in source and binary forms, with or without
13  * modification, are permitted provided that the following conditions
14  * are met:
15  * 1. Redistributions of source code must retain the above copyright
16  *    notice, this list of conditions, and the following disclaimer,
17  *    without modification.
18  * 2. Redistributions in binary form must reproduce at minimum a disclaimer
19  *    substantially similar to the "NO WARRANTY" disclaimer below
20  *    ("Disclaimer") and any redistribution must be conditioned upon
21  *    including a substantially similar Disclaimer requirement for further
22  *    binary redistribution.
23  * 3. Neither the names of the above-listed copyright holders nor the names
24  *    of any contributors may be used to endorse or promote products derived
25  *    from this software without specific prior written permission.
26  *
27  * Alternatively, this software may be distributed under the terms of the
28  * GNU General Public License ("GPL") version 2 as published by the Free
29  * Software Foundation.
30  *
31  * NO WARRANTY
32  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
33  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
34  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
35  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
36  * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
37  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
38  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
39  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
40  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
41  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
42  * POSSIBILITY OF SUCH DAMAGES.
43  */
44
45 /* acpisrc:struct_defs -- for acpisrc conversion */
46
47 #ifndef __AMLRESRC_H
48 #define __AMLRESRC_H
49
50 /*
51  * Resource descriptor tags, as defined in the ACPI specification.
52  * Used to symbolically reference fields within a descriptor.
53  */
54 #define ACPI_RESTAG_ADDRESS                     "_ADR"
55 #define ACPI_RESTAG_ALIGNMENT                   "_ALN"
56 #define ACPI_RESTAG_ADDRESSSPACE                "_ASI"
57 #define ACPI_RESTAG_ACCESSSIZE                  "_ASZ"
58 #define ACPI_RESTAG_TYPESPECIFICATTRIBUTES      "_ATT"
59 #define ACPI_RESTAG_BASEADDRESS                 "_BAS"
60 #define ACPI_RESTAG_BUSMASTER                   "_BM_"  /* Master(1), Slave(0) */
61 #define ACPI_RESTAG_DEBOUNCETIME                "_DBT"
62 #define ACPI_RESTAG_DECODE                      "_DEC"
63 #define ACPI_RESTAG_DEVICEPOLARITY              "_DPL"
64 #define ACPI_RESTAG_DMA                         "_DMA"
65 #define ACPI_RESTAG_DMATYPE                     "_TYP"  /* Compatible(0), A(1), B(2), F(3) */
66 #define ACPI_RESTAG_DRIVESTRENGTH               "_DRS"
67 #define ACPI_RESTAG_ENDIANNESS                  "_END"
68 #define ACPI_RESTAG_FLOWCONTROL                 "_FLC"
69 #define ACPI_RESTAG_GRANULARITY                 "_GRA"
70 #define ACPI_RESTAG_INTERRUPT                   "_INT"
71 #define ACPI_RESTAG_INTERRUPTLEVEL              "_LL_"  /* active_lo(1), active_hi(0) */
72 #define ACPI_RESTAG_INTERRUPTSHARE              "_SHR"  /* Shareable(1), no_share(0) */
73 #define ACPI_RESTAG_INTERRUPTTYPE               "_HE_"  /* Edge(1), Level(0) */
74 #define ACPI_RESTAG_IORESTRICTION               "_IOR"
75 #define ACPI_RESTAG_LENGTH                      "_LEN"
76 #define ACPI_RESTAG_LINE                        "_LIN"
77 #define ACPI_RESTAG_MEMATTRIBUTES               "_MTP"  /* Memory(0), Reserved(1), ACPI(2), NVS(3) */
78 #define ACPI_RESTAG_MEMTYPE                     "_MEM"  /* non_cache(0), Cacheable(1) Cache+combine(2), Cache+prefetch(3) */
79 #define ACPI_RESTAG_MAXADDR                     "_MAX"
80 #define ACPI_RESTAG_MINADDR                     "_MIN"
81 #define ACPI_RESTAG_MAXTYPE                     "_MAF"
82 #define ACPI_RESTAG_MINTYPE                     "_MIF"
83 #define ACPI_RESTAG_MODE                        "_MOD"
84 #define ACPI_RESTAG_PARITY                      "_PAR"
85 #define ACPI_RESTAG_PHASE                       "_PHA"
86 #define ACPI_RESTAG_PIN                         "_PIN"
87 #define ACPI_RESTAG_PINCONFIG                   "_PPI"
88 #define ACPI_RESTAG_POLARITY                    "_POL"
89 #define ACPI_RESTAG_REGISTERBITOFFSET           "_RBO"
90 #define ACPI_RESTAG_REGISTERBITWIDTH            "_RBW"
91 #define ACPI_RESTAG_RANGETYPE                   "_RNG"
92 #define ACPI_RESTAG_READWRITETYPE               "_RW_"  /* read_only(0), Writeable (1) */
93 #define ACPI_RESTAG_LENGTH_RX                   "_RXL"
94 #define ACPI_RESTAG_LENGTH_TX                   "_TXL"
95 #define ACPI_RESTAG_SLAVEMODE                   "_SLV"
96 #define ACPI_RESTAG_SPEED                       "_SPE"
97 #define ACPI_RESTAG_STOPBITS                    "_STB"
98 #define ACPI_RESTAG_TRANSLATION                 "_TRA"
99 #define ACPI_RESTAG_TRANSTYPE                   "_TRS"  /* Sparse(1), Dense(0) */
100 #define ACPI_RESTAG_TYPE                        "_TTP"  /* Translation(1), Static (0) */
101 #define ACPI_RESTAG_XFERTYPE                    "_SIZ"  /* 8(0), 8_and16(1), 16(2) */
102 #define ACPI_RESTAG_VENDORDATA                  "_VEN"
103
104 /* Default sizes for "small" resource descriptors */
105
106 #define ASL_RDESC_IRQ_SIZE                      0x02
107 #define ASL_RDESC_DMA_SIZE                      0x02
108 #define ASL_RDESC_ST_DEPEND_SIZE                0x00
109 #define ASL_RDESC_END_DEPEND_SIZE               0x00
110 #define ASL_RDESC_IO_SIZE                       0x07
111 #define ASL_RDESC_FIXED_IO_SIZE                 0x03
112 #define ASL_RDESC_FIXED_DMA_SIZE                0x05
113 #define ASL_RDESC_END_TAG_SIZE                  0x01
114
115 struct asl_resource_node {
116         u32 buffer_length;
117         void *buffer;
118         struct asl_resource_node *next;
119 };
120
121 /* Macros used to generate AML resource length fields */
122
123 #define ACPI_AML_SIZE_LARGE(r)      (sizeof (r) - sizeof (struct aml_resource_large_header))
124 #define ACPI_AML_SIZE_SMALL(r)      (sizeof (r) - sizeof (struct aml_resource_small_header))
125
126 /*
127  * Resource descriptors defined in the ACPI specification.
128  *
129  * Packing/alignment must be BYTE because these descriptors
130  * are used to overlay the raw AML byte stream.
131  */
132 #pragma pack(1)
133
134 /*
135  * SMALL descriptors
136  */
137 #define AML_RESOURCE_SMALL_HEADER_COMMON \
138         u8                              descriptor_type;
139
140 struct aml_resource_small_header {
141 AML_RESOURCE_SMALL_HEADER_COMMON};
142
143 struct aml_resource_irq {
144         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
145         u8 flags;
146 };
147
148 struct aml_resource_irq_noflags {
149         AML_RESOURCE_SMALL_HEADER_COMMON u16 irq_mask;
150 };
151
152 struct aml_resource_dma {
153         AML_RESOURCE_SMALL_HEADER_COMMON u8 dma_channel_mask;
154         u8 flags;
155 };
156
157 struct aml_resource_start_dependent {
158         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
159 };
160
161 struct aml_resource_start_dependent_noprio {
162 AML_RESOURCE_SMALL_HEADER_COMMON};
163
164 struct aml_resource_end_dependent {
165 AML_RESOURCE_SMALL_HEADER_COMMON};
166
167 struct aml_resource_io {
168         AML_RESOURCE_SMALL_HEADER_COMMON u8 flags;
169         u16 minimum;
170         u16 maximum;
171         u8 alignment;
172         u8 address_length;
173 };
174
175 struct aml_resource_fixed_io {
176         AML_RESOURCE_SMALL_HEADER_COMMON u16 address;
177         u8 address_length;
178 };
179
180 struct aml_resource_vendor_small {
181 AML_RESOURCE_SMALL_HEADER_COMMON};
182
183 struct aml_resource_end_tag {
184         AML_RESOURCE_SMALL_HEADER_COMMON u8 checksum;
185 };
186
187 struct aml_resource_fixed_dma {
188         AML_RESOURCE_SMALL_HEADER_COMMON u16 request_lines;
189         u16 channels;
190         u8 width;
191 };
192
193 /*
194  * LARGE descriptors
195  */
196 #define AML_RESOURCE_LARGE_HEADER_COMMON \
197         u8                              descriptor_type;\
198         u16                             resource_length;
199
200 struct aml_resource_large_header {
201 AML_RESOURCE_LARGE_HEADER_COMMON};
202
203 struct aml_resource_memory24 {
204         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
205         u16 minimum;
206         u16 maximum;
207         u16 alignment;
208         u16 address_length;
209 };
210
211 struct aml_resource_vendor_large {
212 AML_RESOURCE_LARGE_HEADER_COMMON};
213
214 struct aml_resource_memory32 {
215         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
216         u32 minimum;
217         u32 maximum;
218         u32 alignment;
219         u32 address_length;
220 };
221
222 struct aml_resource_fixed_memory32 {
223         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
224         u32 address;
225         u32 address_length;
226 };
227
228 #define AML_RESOURCE_ADDRESS_COMMON \
229         u8                              resource_type; \
230         u8                              flags; \
231         u8                              specific_flags;
232
233 struct aml_resource_address {
234 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_ADDRESS_COMMON};
235
236 struct aml_resource_extended_address64 {
237         AML_RESOURCE_LARGE_HEADER_COMMON
238             AML_RESOURCE_ADDRESS_COMMON u8 revision_iD;
239         u8 reserved;
240         u64 granularity;
241         u64 minimum;
242         u64 maximum;
243         u64 translation_offset;
244         u64 address_length;
245         u64 type_specific;
246 };
247
248 #define AML_RESOURCE_EXTENDED_ADDRESS_REVISION          1       /* ACPI 3.0 */
249
250 struct aml_resource_address64 {
251         AML_RESOURCE_LARGE_HEADER_COMMON
252             AML_RESOURCE_ADDRESS_COMMON u64 granularity;
253         u64 minimum;
254         u64 maximum;
255         u64 translation_offset;
256         u64 address_length;
257 };
258
259 struct aml_resource_address32 {
260         AML_RESOURCE_LARGE_HEADER_COMMON
261             AML_RESOURCE_ADDRESS_COMMON u32 granularity;
262         u32 minimum;
263         u32 maximum;
264         u32 translation_offset;
265         u32 address_length;
266 };
267
268 struct aml_resource_address16 {
269         AML_RESOURCE_LARGE_HEADER_COMMON
270             AML_RESOURCE_ADDRESS_COMMON u16 granularity;
271         u16 minimum;
272         u16 maximum;
273         u16 translation_offset;
274         u16 address_length;
275 };
276
277 struct aml_resource_extended_irq {
278         AML_RESOURCE_LARGE_HEADER_COMMON u8 flags;
279         u8 interrupt_count;
280         u32 interrupts[1];
281         /* res_source_index, res_source optional fields follow */
282 };
283
284 struct aml_resource_generic_register {
285         AML_RESOURCE_LARGE_HEADER_COMMON u8 address_space_id;
286         u8 bit_width;
287         u8 bit_offset;
288         u8 access_size;         /* ACPI 3.0, was previously Reserved */
289         u64 address;
290 };
291
292 /* Common descriptor for gpio_int and gpio_io (ACPI 5.0) */
293
294 struct aml_resource_gpio {
295         AML_RESOURCE_LARGE_HEADER_COMMON u8 revision_id;
296         u8 connection_type;
297         u16 flags;
298         u16 int_flags;
299         u8 pin_config;
300         u16 drive_strength;
301         u16 debounce_timeout;
302         u16 pin_table_offset;
303         u8 res_source_index;
304         u16 res_source_offset;
305         u16 vendor_offset;
306         u16 vendor_length;
307         /*
308          * Optional fields follow immediately:
309          * 1) PIN list (Words)
310          * 2) Resource Source String
311          * 3) Vendor Data bytes
312          */
313 };
314
315 #define AML_RESOURCE_GPIO_REVISION              1       /* ACPI 5.0 */
316
317 /* Values for connection_type above */
318
319 #define AML_RESOURCE_GPIO_TYPE_INT              0
320 #define AML_RESOURCE_GPIO_TYPE_IO               1
321 #define AML_RESOURCE_MAX_GPIOTYPE               1
322
323 /* Common preamble for all serial descriptors (ACPI 5.0) */
324
325 #define AML_RESOURCE_SERIAL_COMMON \
326         u8                              revision_id; \
327         u8                              res_source_index; \
328         u8                              type; \
329         u8                              flags; \
330         u16                             type_specific_flags; \
331         u8                              type_revision_id; \
332         u16                             type_data_length; \
333
334 /* Values for the type field above */
335
336 #define AML_RESOURCE_I2C_SERIALBUSTYPE          1
337 #define AML_RESOURCE_SPI_SERIALBUSTYPE          2
338 #define AML_RESOURCE_UART_SERIALBUSTYPE         3
339 #define AML_RESOURCE_MAX_SERIALBUSTYPE          3
340 #define AML_RESOURCE_VENDOR_SERIALBUSTYPE       192     /* Vendor defined is 0xC0-0xFF (NOT SUPPORTED) */
341
342 struct aml_resource_common_serialbus {
343 AML_RESOURCE_LARGE_HEADER_COMMON AML_RESOURCE_SERIAL_COMMON};
344
345 struct aml_resource_i2c_serialbus {
346         AML_RESOURCE_LARGE_HEADER_COMMON
347             AML_RESOURCE_SERIAL_COMMON u32 connection_speed;
348         u16 slave_address;
349         /*
350          * Optional fields follow immediately:
351          * 1) Vendor Data bytes
352          * 2) Resource Source String
353          */
354 };
355
356 #define AML_RESOURCE_I2C_REVISION               1       /* ACPI 5.0 */
357 #define AML_RESOURCE_I2C_TYPE_REVISION          1       /* ACPI 5.0 */
358 #define AML_RESOURCE_I2C_MIN_DATA_LEN           6
359
360 struct aml_resource_spi_serialbus {
361         AML_RESOURCE_LARGE_HEADER_COMMON
362             AML_RESOURCE_SERIAL_COMMON u32 connection_speed;
363         u8 data_bit_length;
364         u8 clock_phase;
365         u8 clock_polarity;
366         u16 device_selection;
367         /*
368          * Optional fields follow immediately:
369          * 1) Vendor Data bytes
370          * 2) Resource Source String
371          */
372 };
373
374 #define AML_RESOURCE_SPI_REVISION               1       /* ACPI 5.0 */
375 #define AML_RESOURCE_SPI_TYPE_REVISION          1       /* ACPI 5.0 */
376 #define AML_RESOURCE_SPI_MIN_DATA_LEN           9
377
378 struct aml_resource_uart_serialbus {
379         AML_RESOURCE_LARGE_HEADER_COMMON
380             AML_RESOURCE_SERIAL_COMMON u32 default_baud_rate;
381         u16 rx_fifo_size;
382         u16 tx_fifo_size;
383         u8 parity;
384         u8 lines_enabled;
385         /*
386          * Optional fields follow immediately:
387          * 1) Vendor Data bytes
388          * 2) Resource Source String
389          */
390 };
391
392 #define AML_RESOURCE_UART_REVISION              1       /* ACPI 5.0 */
393 #define AML_RESOURCE_UART_TYPE_REVISION         1       /* ACPI 5.0 */
394 #define AML_RESOURCE_UART_MIN_DATA_LEN          10
395
396 /* restore default alignment */
397
398 #pragma pack()
399
400 /* Union of all resource descriptors, so we can allocate the worst case */
401
402 union aml_resource {
403         /* Descriptor headers */
404
405         u8 descriptor_type;
406         struct aml_resource_small_header small_header;
407         struct aml_resource_large_header large_header;
408
409         /* Small resource descriptors */
410
411         struct aml_resource_irq irq;
412         struct aml_resource_dma dma;
413         struct aml_resource_start_dependent start_dpf;
414         struct aml_resource_end_dependent end_dpf;
415         struct aml_resource_io io;
416         struct aml_resource_fixed_io fixed_io;
417         struct aml_resource_fixed_dma fixed_dma;
418         struct aml_resource_vendor_small vendor_small;
419         struct aml_resource_end_tag end_tag;
420
421         /* Large resource descriptors */
422
423         struct aml_resource_memory24 memory24;
424         struct aml_resource_generic_register generic_reg;
425         struct aml_resource_vendor_large vendor_large;
426         struct aml_resource_memory32 memory32;
427         struct aml_resource_fixed_memory32 fixed_memory32;
428         struct aml_resource_address16 address16;
429         struct aml_resource_address32 address32;
430         struct aml_resource_address64 address64;
431         struct aml_resource_extended_address64 ext_address64;
432         struct aml_resource_extended_irq extended_irq;
433         struct aml_resource_gpio gpio;
434         struct aml_resource_i2c_serialbus i2c_serial_bus;
435         struct aml_resource_spi_serialbus spi_serial_bus;
436         struct aml_resource_uart_serialbus uart_serial_bus;
437         struct aml_resource_common_serialbus common_serial_bus;
438
439         /* Utility overlays */
440
441         struct aml_resource_address address;
442         u32 dword_item;
443         u16 word_item;
444         u8 byte_item;
445 };
446
447 #endif