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authorAlex Deucher <alexander.deucher@amd.com>2012-07-18 13:28:52 -0400
committerAlex Deucher <alexander.deucher@amd.com>2012-09-20 13:10:34 -0400
commit9e05b2f49eb9484e857e9b6c70dea3bbbe564290 (patch)
treeaa0f042e30138f80000ee36e2f93c86050cd9f5e /drivers/gpu/drm/radeon/radeon_acpi.h
parent9e9eb7c60d57620bfe46b2a489e7f56a5925115a (diff)
drm/radeon: add new AMD ACPI header and update relevant code (v2)
Add a new header that defines the AMD ACPI interface used for laptops, PowerXpress, and chipset specific functionality and update the current code to use it. Todo: - properly verify the ACPI interfaces - hook up and handle ACPI notifications - make PX code more robust - implement PCIe Gen and width switching using ACPI v2: fix typo in header Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_acpi.h')
-rw-r--r--drivers/gpu/drm/radeon/radeon_acpi.h439
1 files changed, 439 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_acpi.h b/drivers/gpu/drm/radeon/radeon_acpi.h
new file mode 100644
index 000000000000..642aa4719454
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_acpi.h
@@ -0,0 +1,439 @@
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#ifndef RADEON_ACPI_H
25#define RADEON_ACPI_H
26
27/* AMD hw uses four ACPI control methods:
28 * 1. ATIF
29 * ARG0: (ACPI_INTEGER) function code
30 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
31 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
32 * ATIF provides an entry point for the gfx driver to interact with the sbios.
33 * The AMD ACPI notification mechanism uses Notify (VGA, 0x81) or a custom
34 * notification. Which notification is used as indicated by the ATIF Control
35 * Method GET_SYSTEM_PARAMETERS. When the driver receives Notify (VGA, 0x81) or
36 * a custom notification it invokes ATIF Control Method GET_SYSTEM_BIOS_REQUESTS
37 * to identify pending System BIOS requests and associated parameters. For
38 * example, if one of the pending requests is DISPLAY_SWITCH_REQUEST, the driver
39 * will perform display device detection and invoke ATIF Control Method
40 * SELECT_ACTIVE_DISPLAYS.
41 *
42 * 2. ATPX
43 * ARG0: (ACPI_INTEGER) function code
44 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
45 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
46 * ATPX methods are used on PowerXpress systems to handle mux switching and
47 * discrete GPU power control.
48 *
49 * 3. ATRM
50 * ARG0: (ACPI_INTEGER) offset of vbios rom data
51 * ARG1: (ACPI_BUFFER) size of the buffer to fill (up to 4K).
52 * OUTPUT: (ACPI_BUFFER) output buffer
53 * ATRM provides an interfacess to access the discrete GPU vbios image on
54 * PowerXpress systems with multiple GPUs.
55 *
56 * 4. ATCS
57 * ARG0: (ACPI_INTEGER) function code
58 * ARG1: (ACPI_BUFFER) parameter buffer, 256 bytes
59 * OUTPUT: (ACPI_BUFFER) output buffer, 256 bytes
60 * ATCS provides an interface to AMD chipset specific functionality.
61 *
62 */
63/* ATIF */
64#define ATIF_FUNCTION_VERIFY_INTERFACE 0x0
65/* ARG0: ATIF_FUNCTION_VERIFY_INTERFACE
66 * ARG1: none
67 * OUTPUT:
68 * WORD - structure size in bytes (includes size field)
69 * WORD - version
70 * DWORD - supported notifications mask
71 * DWORD - supported functions bit vector
72 */
73/* Notifications mask */
74# define ATIF_DISPLAY_SWITCH_REQUEST_SUPPORTED (1 << 0)
75# define ATIF_EXPANSION_MODE_CHANGE_REQUEST_SUPPORTED (1 << 1)
76# define ATIF_THERMAL_STATE_CHANGE_REQUEST_SUPPORTED (1 << 2)
77# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST_SUPPORTED (1 << 3)
78# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST_SUPPORTED (1 << 4)
79# define ATIF_DISPLAY_CONF_CHANGE_REQUEST_SUPPORTED (1 << 5)
80# define ATIF_PX_GFX_SWITCH_REQUEST_SUPPORTED (1 << 6)
81# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST_SUPPORTED (1 << 7)
82# define ATIF_DGPU_DISPLAY_EVENT_SUPPORTED (1 << 8)
83/* supported functions vector */
84# define ATIF_GET_SYSTEM_PARAMETERS_SUPPORTED (1 << 0)
85# define ATIF_GET_SYSTEM_BIOS_REQUESTS_SUPPORTED (1 << 1)
86# define ATIF_SELECT_ACTIVE_DISPLAYS_SUPPORTED (1 << 2)
87# define ATIF_GET_LID_STATE_SUPPORTED (1 << 3)
88# define ATIF_GET_TV_STANDARD_FROM_CMOS_SUPPORTED (1 << 4)
89# define ATIF_SET_TV_STANDARD_IN_CMOS_SUPPORTED (1 << 5)
90# define ATIF_GET_PANEL_EXPANSION_MODE_FROM_CMOS_SUPPORTED (1 << 6)
91# define ATIF_SET_PANEL_EXPANSION_MODE_IN_CMOS_SUPPORTED (1 << 7)
92# define ATIF_TEMPERATURE_CHANGE_NOTIFICATION_SUPPORTED (1 << 12)
93# define ATIF_GET_GRAPHICS_DEVICE_TYPES_SUPPORTED (1 << 14)
94#define ATIF_FUNCTION_GET_SYSTEM_PARAMETERS 0x1
95/* ARG0: ATIF_FUNCTION_GET_SYSTEM_PARAMETERS
96 * ARG1: none
97 * OUTPUT:
98 * WORD - structure size in bytes (includes size field)
99 * DWORD - valid flags mask
100 * DWORD - flags
101 *
102 * OR
103 *
104 * WORD - structure size in bytes (includes size field)
105 * DWORD - valid flags mask
106 * DWORD - flags
107 * BYTE - notify command code
108 *
109 * flags
110 * bits 1:0:
111 * 0 - Notify(VGA, 0x81) is not used for notification
112 * 1 - Notify(VGA, 0x81) is used for notification
113 * 2 - Notify(VGA, n) is used for notification where
114 * n (0xd0-0xd9) is specified in notify command code.
115 * bit 2:
116 * 1 - lid changes not reported though int10
117 */
118#define ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS 0x2
119/* ARG0: ATIF_FUNCTION_GET_SYSTEM_BIOS_REQUESTS
120 * ARG1: none
121 * OUTPUT:
122 * WORD - structure size in bytes (includes size field)
123 * DWORD - pending sbios requests
124 * BYTE - panel expansion mode
125 * BYTE - thermal state: target gfx controller
126 * BYTE - thermal state: state id (0: exit state, non-0: state)
127 * BYTE - forced power state: target gfx controller
128 * BYTE - forced power state: state id
129 * BYTE - system power source
130 * BYTE - panel backlight level (0-255)
131 */
132/* pending sbios requests */
133# define ATIF_DISPLAY_SWITCH_REQUEST (1 << 0)
134# define ATIF_EXPANSION_MODE_CHANGE_REQUEST (1 << 1)
135# define ATIF_THERMAL_STATE_CHANGE_REQUEST (1 << 2)
136# define ATIF_FORCED_POWER_STATE_CHANGE_REQUEST (1 << 3)
137# define ATIF_SYSTEM_POWER_SOURCE_CHANGE_REQUEST (1 << 4)
138# define ATIF_DISPLAY_CONF_CHANGE_REQUEST (1 << 5)
139# define ATIF_PX_GFX_SWITCH_REQUEST (1 << 6)
140# define ATIF_PANEL_BRIGHTNESS_CHANGE_REQUEST (1 << 7)
141# define ATIF_DGPU_DISPLAY_EVENT (1 << 8)
142/* panel expansion mode */
143# define ATIF_PANEL_EXPANSION_DISABLE 0
144# define ATIF_PANEL_EXPANSION_FULL 1
145# define ATIF_PANEL_EXPANSION_ASPECT 2
146/* target gfx controller */
147# define ATIF_TARGET_GFX_SINGLE 0
148# define ATIF_TARGET_GFX_PX_IGPU 1
149# define ATIF_TARGET_GFX_PX_DGPU 2
150/* system power source */
151# define ATIF_POWER_SOURCE_AC 1
152# define ATIF_POWER_SOURCE_DC 2
153# define ATIF_POWER_SOURCE_RESTRICTED_AC_1 3
154# define ATIF_POWER_SOURCE_RESTRICTED_AC_2 4
155#define ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS 0x3
156/* ARG0: ATIF_FUNCTION_SELECT_ACTIVE_DISPLAYS
157 * ARG1:
158 * WORD - structure size in bytes (includes size field)
159 * WORD - selected displays
160 * WORD - connected displays
161 * OUTPUT:
162 * WORD - structure size in bytes (includes size field)
163 * WORD - selected displays
164 */
165# define ATIF_LCD1 (1 << 0)
166# define ATIF_CRT1 (1 << 1)
167# define ATIF_TV (1 << 2)
168# define ATIF_DFP1 (1 << 3)
169# define ATIF_CRT2 (1 << 4)
170# define ATIF_LCD2 (1 << 5)
171# define ATIF_DFP2 (1 << 7)
172# define ATIF_CV (1 << 8)
173# define ATIF_DFP3 (1 << 9)
174# define ATIF_DFP4 (1 << 10)
175# define ATIF_DFP5 (1 << 11)
176# define ATIF_DFP6 (1 << 12)
177#define ATIF_FUNCTION_GET_LID_STATE 0x4
178/* ARG0: ATIF_FUNCTION_GET_LID_STATE
179 * ARG1: none
180 * OUTPUT:
181 * WORD - structure size in bytes (includes size field)
182 * BYTE - lid state (0: open, 1: closed)
183 *
184 * GET_LID_STATE only works at boot and resume, for general lid
185 * status, use the kernel provided status
186 */
187#define ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS 0x5
188/* ARG0: ATIF_FUNCTION_GET_TV_STANDARD_FROM_CMOS
189 * ARG1: none
190 * OUTPUT:
191 * WORD - structure size in bytes (includes size field)
192 * BYTE - 0
193 * BYTE - TV standard
194 */
195# define ATIF_TV_STD_NTSC 0
196# define ATIF_TV_STD_PAL 1
197# define ATIF_TV_STD_PALM 2
198# define ATIF_TV_STD_PAL60 3
199# define ATIF_TV_STD_NTSCJ 4
200# define ATIF_TV_STD_PALCN 5
201# define ATIF_TV_STD_PALN 6
202# define ATIF_TV_STD_SCART_RGB 9
203#define ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS 0x6
204/* ARG0: ATIF_FUNCTION_SET_TV_STANDARD_IN_CMOS
205 * ARG1:
206 * WORD - structure size in bytes (includes size field)
207 * BYTE - 0
208 * BYTE - TV standard
209 * OUTPUT: none
210 */
211#define ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS 0x7
212/* ARG0: ATIF_FUNCTION_GET_PANEL_EXPANSION_MODE_FROM_CMOS
213 * ARG1: none
214 * OUTPUT:
215 * WORD - structure size in bytes (includes size field)
216 * BYTE - panel expansion mode
217 */
218#define ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS 0x8
219/* ARG0: ATIF_FUNCTION_SET_PANEL_EXPANSION_MODE_IN_CMOS
220 * ARG1:
221 * WORD - structure size in bytes (includes size field)
222 * BYTE - panel expansion mode
223 * OUTPUT: none
224 */
225#define ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION 0xD
226/* ARG0: ATIF_FUNCTION_TEMPERATURE_CHANGE_NOTIFICATION
227 * ARG1:
228 * WORD - structure size in bytes (includes size field)
229 * WORD - gfx controller id
230 * BYTE - current temperature (degress Celsius)
231 * OUTPUT: none
232 */
233#define ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES 0xF
234/* ARG0: ATIF_FUNCTION_GET_GRAPHICS_DEVICE_TYPES
235 * ARG1: none
236 * OUTPUT:
237 * WORD - number of gfx devices
238 * WORD - device structure size in bytes (excludes device size field)
239 * DWORD - flags \
240 * WORD - bus number } repeated structure
241 * WORD - device number /
242 */
243/* flags */
244# define ATIF_PX_REMOVABLE_GRAPHICS_DEVICE (1 << 0)
245# define ATIF_XGP_PORT (1 << 1)
246# define ATIF_VGA_ENABLED_GRAPHICS_DEVICE (1 << 2)
247# define ATIF_XGP_PORT_IN_DOCK (1 << 3)
248
249/* ATPX */
250#define ATPX_FUNCTION_VERIFY_INTERFACE 0x0
251/* ARG0: ATPX_FUNCTION_VERIFY_INTERFACE
252 * ARG1: none
253 * OUTPUT:
254 * WORD - structure size in bytes (includes size field)
255 * WORD - version
256 * DWORD - supported functions bit vector
257 */
258/* supported functions vector */
259# define ATPX_GET_PX_PARAMETERS_SUPPORTED (1 << 0)
260# define ATPX_POWER_CONTROL_SUPPORTED (1 << 1)
261# define ATPX_DISPLAY_MUX_CONTROL_SUPPORTED (1 << 2)
262# define ATPX_I2C_MUX_CONTROL_SUPPORTED (1 << 3)
263# define ATPX_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION_SUPPORTED (1 << 4)
264# define ATPX_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION_SUPPORTED (1 << 5)
265# define ATPX_GET_DISPLAY_CONNECTORS_MAPPING_SUPPORTED (1 << 7)
266# define ATPX_GET_DISPLAY_DETECTION_PORTS_SUPPORTED (1 << 8)
267#define ATPX_FUNCTION_GET_PX_PARAMETERS 0x1
268/* ARG0: ATPX_FUNCTION_GET_PX_PARAMETERS
269 * ARG1: none
270 * OUTPUT:
271 * WORD - structure size in bytes (includes size field)
272 * DWORD - valid flags mask
273 * DWORD - flags
274 */
275/* flags */
276# define ATPX_LVDS_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 0)
277# define ATPX_CRT1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 1)
278# define ATPX_DVI1_I2C_AVAILABLE_TO_BOTH_GPUS (1 << 2)
279# define ATPX_CRT1_RGB_SIGNAL_MUXED (1 << 3)
280# define ATPX_TV_SIGNAL_MUXED (1 << 4)
281# define ATPX_DFP_SIGNAL_MUXED (1 << 5)
282# define ATPX_SEPARATE_MUX_FOR_I2C (1 << 6)
283# define ATPX_DYNAMIC_PX_SUPPORTED (1 << 7)
284# define ATPX_ACF_NOT_SUPPORTED (1 << 8)
285# define ATPX_FIXED_NOT_SUPPORTED (1 << 9)
286# define ATPX_DYNAMIC_DGPU_POWER_OFF_SUPPORTED (1 << 10)
287# define ATPX_DGPU_REQ_POWER_FOR_DISPLAYS (1 << 11)
288#define ATPX_FUNCTION_POWER_CONTROL 0x2
289/* ARG0: ATPX_FUNCTION_POWER_CONTROL
290 * ARG1:
291 * WORD - structure size in bytes (includes size field)
292 * BYTE - dGPU power state (0: power off, 1: power on)
293 * OUTPUT: none
294 */
295#define ATPX_FUNCTION_DISPLAY_MUX_CONTROL 0x3
296/* ARG0: ATPX_FUNCTION_DISPLAY_MUX_CONTROL
297 * ARG1:
298 * WORD - structure size in bytes (includes size field)
299 * WORD - display mux control (0: iGPU, 1: dGPU)
300 * OUTPUT: none
301 */
302# define ATPX_INTEGRATED_GPU 0
303# define ATPX_DISCRETE_GPU 1
304#define ATPX_FUNCTION_I2C_MUX_CONTROL 0x4
305/* ARG0: ATPX_FUNCTION_I2C_MUX_CONTROL
306 * ARG1:
307 * WORD - structure size in bytes (includes size field)
308 * WORD - i2c/aux/hpd mux control (0: iGPU, 1: dGPU)
309 * OUTPUT: none
310 */
311#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION 0x5
312/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_START_NOTIFICATION
313 * ARG1:
314 * WORD - structure size in bytes (includes size field)
315 * WORD - target gpu (0: iGPU, 1: dGPU)
316 * OUTPUT: none
317 */
318#define ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_NOTIFICATION 0x6
319/* ARG0: ATPX_FUNCTION_GRAPHICS_DEVICE_SWITCH_END_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_GET_DISPLAY_CONNECTORS_MAPPING 0x8
326/* ARG0: ATPX_FUNCTION_GET_DISPLAY_CONNECTORS_MAPPING
327 * ARG1: none
328 * OUTPUT:
329 * WORD - number of display connectors
330 * WORD - connector structure size in bytes (excludes connector size field)
331 * BYTE - flags \
332 * BYTE - ATIF display vector bit position } repeated
333 * BYTE - adapter id (0: iGPU, 1-n: dGPU ordered by pcie bus number) } structure
334 * WORD - connector ACPI id /
335 */
336/* flags */
337# define ATPX_DISPLAY_OUTPUT_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 0)
338# define ATPX_DISPLAY_HPD_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 1)
339# define ATPX_DISPLAY_I2C_SUPPORTED_BY_ADAPTER_ID_DEVICE (1 << 2)
340#define ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS 0x9
341/* ARG0: ATPX_FUNCTION_GET_DISPLAY_DETECTION_PORTS
342 * ARG1: none
343 * OUTPUT:
344 * WORD - number of HPD/DDC ports
345 * WORD - port structure size in bytes (excludes port size field)
346 * BYTE - ATIF display vector bit position \
347 * BYTE - hpd id } reapeated structure
348 * BYTE - ddc id /
349 *
350 * available on A+A systems only
351 */
352/* hpd id */
353# define ATPX_HPD_NONE 0
354# define ATPX_HPD1 1
355# define ATPX_HPD2 2
356# define ATPX_HPD3 3
357# define ATPX_HPD4 4
358# define ATPX_HPD5 5
359# define ATPX_HPD6 6
360/* ddc id */
361# define ATPX_DDC_NONE 0
362# define ATPX_DDC1 1
363# define ATPX_DDC2 2
364# define ATPX_DDC3 3
365# define ATPX_DDC4 4
366# define ATPX_DDC5 5
367# define ATPX_DDC6 6
368# define ATPX_DDC7 7
369# define ATPX_DDC8 8
370
371/* ATCS */
372#define ATCS_FUNCTION_VERIFY_INTERFACE 0x0
373/* ARG0: ATCS_FUNCTION_VERIFY_INTERFACE
374 * ARG1: none
375 * OUTPUT:
376 * WORD - structure size in bytes (includes size field)
377 * WORD - version
378 * DWORD - supported functions bit vector
379 */
380/* supported functions vector */
381# define ATCS_GET_EXTERNAL_STATE_SUPPORTED (1 << 0)
382# define ATCS_PCIE_PERFORMANCE_REQUEST_SUPPORTED (1 << 1)
383# define ATCS_PCIE_DEVICE_READY_NOTIFICATION_SUPPORTED (1 << 2)
384# define ATCS_SET_PCIE_BUS_WIDTH_SUPPORTED (1 << 3)
385#define ATCS_FUNCTION_GET_EXTERNAL_STATE 0x1
386/* ARG0: ATCS_FUNCTION_GET_EXTERNAL_STATE
387 * ARG1: none
388 * OUTPUT:
389 * WORD - structure size in bytes (includes size field)
390 * DWORD - valid flags mask
391 * DWORD - flags (0: undocked, 1: docked)
392 */
393/* flags */
394# define ATCS_DOCKED (1 << 0)
395#define ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST 0x2
396/* ARG0: ATCS_FUNCTION_PCIE_PERFORMANCE_REQUEST
397 * ARG1:
398 * WORD - structure size in bytes (includes size field)
399 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
400 * WORD - valid flags mask
401 * WORD - flags
402 * BYTE - request type
403 * BYTE - performance request
404 * OUTPUT:
405 * WORD - structure size in bytes (includes size field)
406 * BYTE - return value
407 */
408/* flags */
409# define ATCS_ADVERTISE_CAPS (1 << 0)
410# define ATCS_WAIT_FOR_COMPLETION (1 << 1)
411/* request type */
412# define ATCS_PCIE_LINK_SPEED 1
413/* performance request */
414# define ATCS_REMOVE 0
415# define ATCS_FORCE_LOW_POWER 1
416# define ATCS_PERF_LEVEL_1 2 /* PCIE Gen 1 */
417# define ATCS_PERF_LEVEL_2 3 /* PCIE Gen 2 */
418# define ATCS_PERF_LEVEL_3 4 /* PCIE Gen 3 */
419/* return value */
420# define ATCS_REQUEST_REFUSED 1
421# define ATCS_REQUEST_COMPLETE 2
422# define ATCS_REQUEST_IN_PROGRESS 3
423#define ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION 0x3
424/* ARG0: ATCS_FUNCTION_PCIE_DEVICE_READY_NOTIFICATION
425 * ARG1: none
426 * OUTPUT: none
427 */
428#define ATCS_FUNCTION_SET_PCIE_BUS_WIDTH 0x4
429/* ARG0: ATCS_FUNCTION_SET_PCIE_BUS_WIDTH
430 * ARG1:
431 * WORD - structure size in bytes (includes size field)
432 * WORD - client id (bit 2-0: func num, 7-3: dev num, 15-8: bus num)
433 * BYTE - number of active lanes
434 * OUTPUT:
435 * WORD - structure size in bytes (includes size field)
436 * BYTE - number of active lanes
437 */
438
439#endif
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