radeon_acpi.h revision 254885
1/*
2 * Copyright 2012 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24#include <sys/cdefs.h>
25__FBSDID("$FreeBSD: head/sys/dev/drm2/radeon/radeon_acpi.h 254885 2013-08-25 19:37:15Z dumbbell $");
26
27#ifndef RADEON_ACPI_H
28#define RADEON_ACPI_H
29
30struct radeon_device;
31
32void radeon_atif_handler(struct radeon_device *rdev, UINT32 type);
33
34/* AMD hw uses four ACPI control methods:
35 * 1. ATIF
36 * ARG0: (ACPI_INTEGER) function code
37 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
38 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
39 * ATIF provides an entry point for the gfx driver to interact with the sbios.
40 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
41 * notification. Which notification is used as indicated by the ATIF Control
42 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
43 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
44 * to identify pending System BIOS requests and associated parameters. For
45 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
46 * will perform display device detection and invoke ATIF Control Method
47 * SELECT_ACTIVE_DISPLAYS.
48 *
49 * 2. ATPX
50 * ARG0: (ACPI_INTEGER) function code
51 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
52 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
53 * ATPX methods are used on PowerXpress systems to handle mux switching and
54 * discrete GPU power control.
55 *
56 * 3. ATRM
57 * ARG0: (ACPI_INTEGER) offset of vbios rom data
58 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
59 * OUTPUT: (ACPI_BUFFER) output buffer
60 * ATRM provides an interfacess to access the discrete GPU vbios image on
61 * PowerXpress systems with multiple GPUs.
62 *
63 * 4. ATCS
64 * ARG0: (ACPI_INTEGER) function code
65 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
66 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
67 * ATCS provides an interface to AMD chipset specific functionality.
68 *
69 */
70/* ATIF */
71#define ATIF_FUNCTION_VERIFY_INTERFACE                             0x0
72/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
73 * ARG1: none
74 * OUTPUT:
75 * WORD  - structure size in bytes (includes size field)
76 * WORD  - version
77 * DWORD - supported notifications mask
78 * DWORD - supported functions bit vector
79 */
80/* Notifications mask */
81#       define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED               (1 << 0)
82#       define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED        (1 << 1)
83#       define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED         (1 << 2)
84#       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED    (1 << 3)
85#       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED   (1 << 4)
86#       define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED          (1 << 5)
87#       define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED                (1 << 6)
88#       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED      (1 << 7)
89#       define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED                   (1 << 8)
90/* supported functions vector */
91#       define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED               (1 << 0)
92#       define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED            (1 << 1)
93#       define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED              (1 << 2)
94#       define ATIF_GET_LID_STATE_SUPPORTED                       (1 << 3)
95#       define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED           (1 << 4)
96#       define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED             (1 << 5)
97#       define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED  (1 << 6)
98#       define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED    (1 << 7)
99#       define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED     (1 << 12)
100#       define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED           (1 << 14)
101#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS                        0x1
102/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
103 * ARG1: none
104 * OUTPUT:
105 * WORD  - structure size in bytes (includes size field)
106 * DWORD - valid flags mask
107 * DWORD - flags
108 *
109 * OR
110 *
111 * WORD  - structure size in bytes (includes size field)
112 * DWORD - valid flags mask
113 * DWORD - flags
114 * BYTE  - notify command code
115 *
116 * flags
117 * bits 1:0:
118 * 0 - Notify(VGA, 0x81) is not used for notification
119 * 1 - Notify(VGA, 0x81) is used for notification
120 * 2 - Notify(VGA, n) is used for notification where
121 * n (0xd0-0xd9) is specified in notify command code.
122 * bit 2:
123 * 1 - lid changes not reported though int10
124 */
125#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS                     0x2
126/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
127 * ARG1: none
128 * OUTPUT:
129 * WORD  - structure size in bytes (includes size field)
130 * DWORD - pending sbios requests
131 * BYTE  - panel expansion mode
132 * BYTE  - thermal state: target gfx controller
133 * BYTE  - thermal state: state id (0: exit state, non-0: state)
134 * BYTE  - forced power state: target gfx controller
135 * BYTE  - forced power state: state id
136 * BYTE  - system power source
137 * BYTE  - panel backlight level (0-255)
138 */
139/* pending sbios requests */
140#       define ATIF_DISPLAY_SWITCH_REQUEST                         (1 << 0)
141#       define ATIF_EXPANSION_MODE_CHANGE_REQUEST                  (1 << 1)
142#       define ATIF_THERMAL_STATE_CHANGE_REQUEST                   (1 << 2)
143#       define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST              (1 << 3)
144#       define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST             (1 << 4)
145#       define ATIF_DISPLAY_CONF_CHANGE_REQUEST                    (1 << 5)
146#       define ATIF_PX_GFX_SWITCH_REQUEST                          (1 << 6)
147#       define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST                (1 << 7)
148#       define ATIF_DGPU_DISPLAY_EVENT                             (1 << 8)
149/* panel expansion mode */
150#       define ATIF_PANEL_EXPANSION_DISABLE                        0
151#       define ATIF_PANEL_EXPANSION_FULL                           1
152#       define ATIF_PANEL_EXPANSION_ASPECT                         2
153/* target gfx controller */
154#       define ATIF_TARGET_GFX_SINGLE                              0
155#       define ATIF_TARGET_GFX_PX_IGPU                             1
156#       define ATIF_TARGET_GFX_PX_DGPU                             2
157/* system power source */
158#       define ATIF_POWER_SOURCE_AC                                1
159#       define ATIF_POWER_SOURCE_DC                                2
160#       define ATIF_POWER_SOURCE_RESTRICTED_AC_1                   3
161#       define ATIF_POWER_SOURCE_RESTRICTED_AC_2                   4
162#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS                       0x3
163/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
164 * ARG1:
165 * WORD  - structure size in bytes (includes size field)
166 * WORD  - selected displays
167 * WORD  - connected displays
168 * OUTPUT:
169 * WORD  - structure size in bytes (includes size field)
170 * WORD  - selected displays
171 */
172#       define ATIF_LCD1                                           (1 << 0)
173#       define ATIF_CRT1                                           (1 << 1)
174#       define ATIF_TV                                             (1 << 2)
175#       define ATIF_DFP1                                           (1 << 3)
176#       define ATIF_CRT2                                           (1 << 4)
177#       define ATIF_LCD2                                           (1 << 5)
178#       define ATIF_DFP2                                           (1 << 7)
179#       define ATIF_CV                                             (1 << 8)
180#       define ATIF_DFP3                                           (1 << 9)
181#       define ATIF_DFP4                                           (1 << 10)
182#       define ATIF_DFP5                                           (1 << 11)
183#       define ATIF_DFP6                                           (1 << 12)
184#define ATIF_FUNCTION_GET_LID_STATE                                0x4
185/* ARG0: ATIF_FUNCTION_GET_LID_STATE
186 * ARG1: none
187 * OUTPUT:
188 * WORD  - structure size in bytes (includes size field)
189 * BYTE  - lid state (0: open, 1: closed)
190 *
191 * GET_LID_STATE only works at boot and resume, for general lid
192 * status, use the kernel provided status
193 */
194#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS                    0x5
195/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
196 * ARG1: none
197 * OUTPUT:
198 * WORD  - structure size in bytes (includes size field)
199 * BYTE  - 0
200 * BYTE  - TV standard
201 */
202#       define ATIF_TV_STD_NTSC                                    0
203#       define ATIF_TV_STD_PAL                                     1
204#       define ATIF_TV_STD_PALM                                    2
205#       define ATIF_TV_STD_PAL60                                   3
206#       define ATIF_TV_STD_NTSCJ                                   4
207#       define ATIF_TV_STD_PALCN                                   5
208#       define ATIF_TV_STD_PALN                                    6
209#       define ATIF_TV_STD_SCART_RGB                               9
210#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS                      0x6
211/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
212 * ARG1:
213 * WORD  - structure size in bytes (includes size field)
214 * BYTE  - 0
215 * BYTE  - TV standard
216 * OUTPUT: none
217 */
218#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS           0x7
219/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
220 * ARG1: none
221 * OUTPUT:
222 * WORD  - structure size in bytes (includes size field)
223 * BYTE  - panel expansion mode
224 */
225#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS             0x8
226/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
227 * ARG1:
228 * WORD  - structure size in bytes (includes size field)
229 * BYTE  - panel expansion mode
230 * OUTPUT: none
231 */
232#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION              0xD
233/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
234 * ARG1:
235 * WORD  - structure size in bytes (includes size field)
236 * WORD  - gfx controller id
237 * BYTE  - current temperature (degress Celsius)
238 * OUTPUT: none
239 */
240#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES                    0xF
241/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
242 * ARG1: none
243 * OUTPUT:
244 * WORD  - number of gfx devices
245 * WORD  - device structure size in bytes (excludes device size field)
246 * DWORD - flags         \
247 * WORD  - bus number     } repeated structure
248 * WORD  - device number /
249 */
250/* flags */
251#       define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE                   (1 << 0)
252#       define ATIF_XGP_PORT                                       (1 << 1)
253#       define ATIF_VGA_ENABLED_GRAPHICS_DEVICE                    (1 << 2)
254#       define ATIF_XGP_PORT_IN_DOCK                               (1 << 3)
255
256/* ATPX */
257#define ATPX_FUNCTION_VERIFY_INTERFACE                             0x0
258/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
259 * ARG1: none
260 * OUTPUT:
261 * WORD  - structure size in bytes (includes size field)
262 * WORD  - version
263 * DWORD - supported functions bit vector
264 */
265/* supported functions vector */
266#       define ATPX_GET_PX_PARAMETERS_SUPPORTED                    (1 << 0)
267#       define ATPX_POWER_CONTROL_SUPPORTED                        (1 << 1)
268#       define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED                  (1 << 2)
269#       define ATPX_I2C_MUX_CONTROL_SUPPORTED                      (1 << 3)
270#       define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
271#       define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED   (1 << 5)
272#       define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED       (1 << 7)
273#       define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED          (1 << 8)
274#define ATPX_FUNCTION_GET_PX_PARAMETERS                            0x1
275/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
276 * ARG1: none
277 * OUTPUT:
278 * WORD  - structure size in bytes (includes size field)
279 * DWORD - valid flags mask
280 * DWORD - flags
281 */
282/* flags */
283#       define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 0)
284#       define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 1)
285#       define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS                (1 << 2)
286#       define ATPX_CRT1_RGB_SIGNAL_MUXED                          (1 << 3)
287#       define ATPX_TV_SIGNAL_MUXED                                (1 << 4)
288#       define ATPX_DFP_SIGNAL_MUXED                               (1 << 5)
289#       define ATPX_SEPARATE_MUX_FOR_I2C                           (1 << 6)
290#       define ATPX_DYNAMIC_PX_SUPPORTED                           (1 << 7)
291#       define ATPX_ACF_NOT_SUPPORTED                              (1 << 8)
292#       define ATPX_FIXED_NOT_SUPPORTED                            (1 << 9)
293#       define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED               (1 << 10)
294#       define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS                    (1 << 11)
295#define ATPX_FUNCTION_POWER_CONTROL                                0x2
296/* ARG0: ATPX_FUNCTION_POWER_CONTROL
297 * ARG1:
298 * WORD  - structure size in bytes (includes size field)
299 * BYTE  - dGPU power state (0: power off, 1: power on)
300 * OUTPUT: none
301 */
302#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL                          0x3
303/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
304 * ARG1:
305 * WORD  - structure size in bytes (includes size field)
306 * WORD  - display mux control (0: iGPU, 1: dGPU)
307 * OUTPUT: none
308 */
309#       define ATPX_INTEGRATED_GPU                                 0
310#       define ATPX_DISCRETE_GPU                                   1
311#define ATPX_FUNCTION_I2C_MUX_CONTROL                              0x4
312/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
313 * ARG1:
314 * WORD  - structure size in bytes (includes size field)
315 * WORD  - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
316 * OUTPUT: none
317 */
318#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION    0x5
319/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
320 * ARG1:
321 * WORD  - structure size in bytes (includes size field)
322 * WORD  - target gpu (0: iGPU, 1: dGPU)
323 * OUTPUT: none
324 */
325#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION      0x6
326/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION
327 * ARG1:
328 * WORD  - structure size in bytes (includes size field)
329 * WORD  - target gpu (0: iGPU, 1: dGPU)
330 * OUTPUT: none
331 */
332#define ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING               0x8
333/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
334 * ARG1: none
335 * OUTPUT:
336 * WORD  - number of display connectors
337 * WORD  - connector structure size in bytes (excludes connector size field)
338 * BYTE  - flags                                                     \
339 * BYTE  - ATIF display vector bit position                           } repeated
340 * BYTE  - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
341 * WORD  - connector ACPI id                                         /
342 */
343/* flags */
344#       define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE  (1 << 0)
345#       define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 1)
346#       define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE     (1 << 2)
347#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS                  0x9
348/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
349 * ARG1: none
350 * OUTPUT:
351 * WORD  - number of HPD/DDC ports
352 * WORD  - port structure size in bytes (excludes port size field)
353 * BYTE  - ATIF display vector bit position \
354 * BYTE  - hpd id                            } reapeated structure
355 * BYTE  - ddc id                           /
356 *
357 * available on A+A systems only
358 */
359/* hpd id */
360#       define ATPX_HPD_NONE                                       0
361#       define ATPX_HPD1                                           1
362#       define ATPX_HPD2                                           2
363#       define ATPX_HPD3                                           3
364#       define ATPX_HPD4                                           4
365#       define ATPX_HPD5                                           5
366#       define ATPX_HPD6                                           6
367/* ddc id */
368#       define ATPX_DDC_NONE                                       0
369#       define ATPX_DDC1                                           1
370#       define ATPX_DDC2                                           2
371#       define ATPX_DDC3                                           3
372#       define ATPX_DDC4                                           4
373#       define ATPX_DDC5                                           5
374#       define ATPX_DDC6                                           6
375#       define ATPX_DDC7                                           7
376#       define ATPX_DDC8                                           8
377
378/* ATCS */
379#define ATCS_FUNCTION_VERIFY_INTERFACE                             0x0
380/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
381 * ARG1: none
382 * OUTPUT:
383 * WORD  - structure size in bytes (includes size field)
384 * WORD  - version
385 * DWORD - supported functions bit vector
386 */
387/* supported functions vector */
388#       define ATCS_GET_EXTERNAL_STATE_SUPPORTED                   (1 << 0)
389#       define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED             (1 << 1)
390#       define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED       (1 << 2)
391#       define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED                   (1 << 3)
392#define ATCS_FUNCTION_GET_EXTERNAL_STATE                           0x1
393/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
394 * ARG1: none
395 * OUTPUT:
396 * WORD  - structure size in bytes (includes size field)
397 * DWORD - valid flags mask
398 * DWORD - flags (0: undocked, 1: docked)
399 */
400/* flags */
401#       define ATCS_DOCKED                                         (1 << 0)
402#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST                     0x2
403/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
404 * ARG1:
405 * WORD  - structure size in bytes (includes size field)
406 * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
407 * WORD  - valid flags mask
408 * WORD  - flags
409 * BYTE  - request type
410 * BYTE  - performance request
411 * OUTPUT:
412 * WORD  - structure size in bytes (includes size field)
413 * BYTE  - return value
414 */
415/* flags */
416#       define ATCS_ADVERTISE_CAPS                                 (1 << 0)
417#       define ATCS_WAIT_FOR_COMPLETION                            (1 << 1)
418/* request type */
419#       define ATCS_PCIE_LINK_SPEED                                1
420/* performance request */
421#       define ATCS_REMOVE                                         0
422#       define ATCS_FORCE_LOW_POWER                                1
423#       define ATCS_PERF_LEVEL_1                                   2 /* PCIE Gen 1 */
424#       define ATCS_PERF_LEVEL_2                                   3 /* PCIE Gen 2 */
425#       define ATCS_PERF_LEVEL_3                                   4 /* PCIE Gen 3 */
426/* return value */
427#       define ATCS_REQUEST_REFUSED                                1
428#       define ATCS_REQUEST_COMPLETE                               2
429#       define ATCS_REQUEST_IN_PROGRESS                            3
430#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION               0x3
431/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
432 * ARG1: none
433 * OUTPUT: none
434 */
435#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH                           0x4
436/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
437 * ARG1:
438 * WORD  - structure size in bytes (includes size field)
439 * WORD  - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
440 * BYTE  - number of active lanes
441 * OUTPUT:
442 * WORD  - structure size in bytes (includes size field)
443 * BYTE  - number of active lanes
444 */
445
446#endif
447