acpi_display.c revision 1.9.2.2
1 1.9.2.2 rmind /* $NetBSD: acpi_display.c,v 1.9.2.2 2011/03/05 20:53:02 rmind Exp $ */ 2 1.9.2.2 rmind 3 1.9.2.2 rmind /*- 4 1.9.2.2 rmind * Copyright (c) 2010 The NetBSD Foundation, Inc. 5 1.9.2.2 rmind * All rights reserved. 6 1.9.2.2 rmind * 7 1.9.2.2 rmind * This code is derived from software contributed to The NetBSD Foundation 8 1.9.2.2 rmind * by Gregoire Sutre. 9 1.9.2.2 rmind * 10 1.9.2.2 rmind * Redistribution and use in source and binary forms, with or without 11 1.9.2.2 rmind * modification, are permitted provided that the following conditions 12 1.9.2.2 rmind * are met: 13 1.9.2.2 rmind * 1. Redistributions of source code must retain the above copyright 14 1.9.2.2 rmind * notice, this list of conditions and the following disclaimer. 15 1.9.2.2 rmind * 2. Redistributions in binary form must reproduce the above copyright 16 1.9.2.2 rmind * notice, this list of conditions and the following disclaimer in the 17 1.9.2.2 rmind * documentation and/or other materials provided with the distribution. 18 1.9.2.2 rmind * 19 1.9.2.2 rmind * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 1.9.2.2 rmind * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 1.9.2.2 rmind * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 1.9.2.2 rmind * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 1.9.2.2 rmind * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 1.9.2.2 rmind * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 1.9.2.2 rmind * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 1.9.2.2 rmind * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 1.9.2.2 rmind * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 1.9.2.2 rmind * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 1.9.2.2 rmind * POSSIBILITY OF SUCH DAMAGE. 30 1.9.2.2 rmind */ 31 1.9.2.2 rmind 32 1.9.2.2 rmind /* 33 1.9.2.2 rmind * ACPI Display Adapter Driver. 34 1.9.2.2 rmind * 35 1.9.2.2 rmind * Appendix B of the ACPI specification presents ACPI extensions for display 36 1.9.2.2 rmind * adapters. Systems containing a built-in display adapter are required to 37 1.9.2.2 rmind * implement these extensions (in their ACPI BIOS). This driver uses these 38 1.9.2.2 rmind * extensions to provide generic support for brightness control and display 39 1.9.2.2 rmind * switching. 40 1.9.2.2 rmind * 41 1.9.2.2 rmind * If brightness control methods are absent or non-functional, ACPI brightness 42 1.9.2.2 rmind * notifications are relayed to the PMF framework. 43 1.9.2.2 rmind * 44 1.9.2.2 rmind * This driver sets the BIOS switch policy (_DOS method) as follows: 45 1.9.2.2 rmind * - The BIOS should automatically switch the active display output, with no 46 1.9.2.2 rmind * interaction required on the OS part. 47 1.9.2.2 rmind * - The BIOS should not automatically control the brightness levels. 48 1.9.2.2 rmind * 49 1.9.2.2 rmind * Brightness and BIOS switch policy can be adjusted from userland, via the 50 1.9.2.2 rmind * sysctl variables acpivga<n>.policy and acpiout<n>.brightness under hw.acpi. 51 1.9.2.2 rmind */ 52 1.9.2.2 rmind 53 1.9.2.2 rmind /* 54 1.9.2.2 rmind * The driver uses mutex(9) protection since changes to the hardware/software 55 1.9.2.2 rmind * state may be initiated both by the BIOS (ACPI notifications) and by the user 56 1.9.2.2 rmind * (sysctl). The ACPI display adapter's mutex is shared with all ACPI display 57 1.9.2.2 rmind * output devices attached to it. 58 1.9.2.2 rmind * 59 1.9.2.2 rmind * The mutex only prevents undesired interleavings of ACPI notify handlers, 60 1.9.2.2 rmind * sysctl callbacks, and pmf(9) suspend/resume routines. Race conditions with 61 1.9.2.2 rmind * autoconf(9) detachment routines could, in theory, still occur. 62 1.9.2.2 rmind * 63 1.9.2.2 rmind * The array of connected output devices (sc_odinfo) is, after attachment, only 64 1.9.2.2 rmind * used in ACPI notify handler callbacks. Since two such callbacks cannot be 65 1.9.2.2 rmind * running simultaneously, this information does not need protection. 66 1.9.2.2 rmind */ 67 1.9.2.2 rmind 68 1.9.2.2 rmind #include <sys/cdefs.h> 69 1.9.2.2 rmind __KERNEL_RCSID(0, "$NetBSD: acpi_display.c,v 1.9.2.2 2011/03/05 20:53:02 rmind Exp $"); 70 1.9.2.2 rmind 71 1.9.2.2 rmind #include <sys/param.h> 72 1.9.2.2 rmind #include <sys/device.h> 73 1.9.2.2 rmind #include <sys/kmem.h> 74 1.9.2.2 rmind #include <sys/module.h> 75 1.9.2.2 rmind #include <sys/mutex.h> 76 1.9.2.2 rmind #include <sys/sysctl.h> 77 1.9.2.2 rmind #include <sys/systm.h> 78 1.9.2.2 rmind 79 1.9.2.2 rmind #include <dev/pci/pcireg.h> 80 1.9.2.2 rmind #include <dev/pci/pcidevs.h> 81 1.9.2.2 rmind 82 1.9.2.2 rmind #include <dev/acpi/acpireg.h> 83 1.9.2.2 rmind #include <dev/acpi/acpivar.h> 84 1.9.2.2 rmind 85 1.9.2.2 rmind #define _COMPONENT ACPI_DISPLAY_COMPONENT 86 1.9.2.2 rmind ACPI_MODULE_NAME ("acpi_display") 87 1.9.2.2 rmind 88 1.9.2.2 rmind /* Notifications specific to display adapter devices (ACPI 4.0a, Sec. B.5). */ 89 1.9.2.2 rmind #define ACPI_NOTIFY_CycleOutputDevice 0x80 90 1.9.2.2 rmind #define ACPI_NOTIFY_OutputDeviceStatusChange 0x81 91 1.9.2.2 rmind #define ACPI_NOTIFY_CycleDisplayOutputHotkeyPressed 0x82 92 1.9.2.2 rmind #define ACPI_NOTIFY_NextDisplayOutputHotkeyPressed 0x83 93 1.9.2.2 rmind #define ACPI_NOTIFY_PreviousDisplayOutputHotkeyPressed 0x84 94 1.9.2.2 rmind 95 1.9.2.2 rmind /* Notifications specific to display output devices (ACPI 4.0a, Sec. B.7). */ 96 1.9.2.2 rmind #define ACPI_NOTIFY_CycleBrightness 0x85 97 1.9.2.2 rmind #define ACPI_NOTIFY_IncreaseBrightness 0x86 98 1.9.2.2 rmind #define ACPI_NOTIFY_DecreaseBrightness 0x87 99 1.9.2.2 rmind #define ACPI_NOTIFY_ZeroBrightness 0x88 100 1.9.2.2 rmind #define ACPI_NOTIFY_DisplayDeviceOff 0x89 101 1.9.2.2 rmind 102 1.9.2.2 rmind /* Format of the BIOS switch policy set by _DOS (ACPI 4.0a, Sec. B.4.1). */ 103 1.9.2.2 rmind typedef union acpidisp_bios_policy_t { 104 1.9.2.2 rmind uint8_t raw; 105 1.9.2.2 rmind struct { 106 1.9.2.2 rmind uint8_t output:2; 107 1.9.2.2 rmind uint8_t brightness:1; 108 1.9.2.2 rmind uint8_t reserved:5; 109 1.9.2.2 rmind } __packed fmt; 110 1.9.2.2 rmind } acpidisp_bios_policy_t; 111 1.9.2.2 rmind 112 1.9.2.2 rmind /* Default BIOS switch policy (ACPI 4.0a, Sec. B.4.1). */ 113 1.9.2.2 rmind static const acpidisp_bios_policy_t acpidisp_default_bios_policy = { 114 1.9.2.2 rmind .raw = 0x1 115 1.9.2.2 rmind }; 116 1.9.2.2 rmind 117 1.9.2.2 rmind /* BIOS output switch policies (ACPI 4.0a, Sec. B.4.1). */ 118 1.9.2.2 rmind #define ACPI_DISP_POLICY_OUTPUT_NORMAL 0x0 119 1.9.2.2 rmind #define ACPI_DISP_POLICY_OUTPUT_AUTO 0x1 120 1.9.2.2 rmind #define ACPI_DISP_POLICY_OUTPUT_LOCKED 0x2 121 1.9.2.2 rmind #define ACPI_DISP_POLICY_OUTPUT_HOTKEY 0x3 122 1.9.2.2 rmind 123 1.9.2.2 rmind /* BIOS brightness switch policies (ACPI 4.0a, Sec. B.4.1). */ 124 1.9.2.2 rmind #define ACPI_DISP_POLICY_BRIGHTNESS_AUTO 0x0 125 1.9.2.2 rmind #define ACPI_DISP_POLICY_BRIGHTNESS_NORMAL 0x1 126 1.9.2.2 rmind 127 1.9.2.2 rmind /* Format of output device attributes (ACPI 4.0a, Table B-2). */ 128 1.9.2.2 rmind typedef union acpidisp_od_attrs_t { 129 1.9.2.2 rmind uint16_t device_id; 130 1.9.2.2 rmind uint32_t raw; 131 1.9.2.2 rmind struct { 132 1.9.2.2 rmind uint8_t index:4; 133 1.9.2.2 rmind uint8_t port:4; 134 1.9.2.2 rmind uint8_t type:4; 135 1.9.2.2 rmind uint8_t vendor_specific:4; 136 1.9.2.2 rmind uint8_t bios_detect:1; 137 1.9.2.2 rmind uint8_t non_vga:1; 138 1.9.2.2 rmind uint8_t head_id:3; 139 1.9.2.2 rmind uint16_t reserved:10; 140 1.9.2.2 rmind uint8_t device_id_scheme:1; 141 1.9.2.2 rmind } __packed fmt; 142 1.9.2.2 rmind } acpidisp_od_attrs_t; 143 1.9.2.2 rmind 144 1.9.2.2 rmind /* Common legacy output device IDs (ACPI 2.0c, Table B-3). */ 145 1.9.2.2 rmind #define ACPI_DISP_OUT_LEGACY_DEVID_MONITOR 0x0100 146 1.9.2.2 rmind #define ACPI_DISP_OUT_LEGACY_DEVID_PANEL 0x0110 147 1.9.2.2 rmind #define ACPI_DISP_OUT_LEGACY_DEVID_TV 0x0200 148 1.9.2.2 rmind 149 1.9.2.2 rmind /* Output device display types (ACPI 4.0a, Table B-2). */ 150 1.9.2.2 rmind #define ACPI_DISP_OUT_ATTR_TYPE_OTHER 0x0 151 1.9.2.2 rmind #define ACPI_DISP_OUT_ATTR_TYPE_VGA 0x1 152 1.9.2.2 rmind #define ACPI_DISP_OUT_ATTR_TYPE_TV 0x2 153 1.9.2.2 rmind #define ACPI_DISP_OUT_ATTR_TYPE_EXTDIG 0x3 154 1.9.2.2 rmind #define ACPI_DISP_OUT_ATTR_TYPE_INTDFP 0x4 155 1.9.2.2 rmind 156 1.9.2.2 rmind /* Format of output device status (ACPI 4.0a, Table B-4). */ 157 1.9.2.2 rmind typedef union acpidisp_od_status_t { 158 1.9.2.2 rmind uint32_t raw; 159 1.9.2.2 rmind struct { 160 1.9.2.2 rmind uint8_t exists:1; 161 1.9.2.2 rmind uint8_t activated:1; 162 1.9.2.2 rmind uint8_t ready:1; 163 1.9.2.2 rmind uint8_t not_defective:1; 164 1.9.2.2 rmind uint8_t attached:1; 165 1.9.2.2 rmind uint32_t reserved:27; 166 1.9.2.2 rmind } __packed fmt; 167 1.9.2.2 rmind } acpidisp_od_status_t; 168 1.9.2.2 rmind 169 1.9.2.2 rmind /* Format of output device state (ACPI 4.0a, Table B-6). */ 170 1.9.2.2 rmind typedef union acpidisp_od_state_t { 171 1.9.2.2 rmind uint32_t raw; 172 1.9.2.2 rmind struct { 173 1.9.2.2 rmind uint8_t active:1; 174 1.9.2.2 rmind uint32_t reserved:29; 175 1.9.2.2 rmind uint8_t no_switch:1; 176 1.9.2.2 rmind uint8_t commit:1; 177 1.9.2.2 rmind } __packed fmt; 178 1.9.2.2 rmind } acpidisp_od_state_t; 179 1.9.2.2 rmind 180 1.9.2.2 rmind /* 181 1.9.2.2 rmind * acpidisp_outdev: 182 1.9.2.2 rmind * 183 1.9.2.2 rmind * Description of an ACPI display output device. This structure groups 184 1.9.2.2 rmind * together: 185 1.9.2.2 rmind * - the output device attributes, given in the display adapter's _DOD 186 1.9.2.2 rmind * method (ACPI 4.0a, Sec. B.4.2). 187 1.9.2.2 rmind * - the corresponding instance of the acpiout driver (if any). 188 1.9.2.2 rmind */ 189 1.9.2.2 rmind struct acpidisp_outdev { 190 1.9.2.2 rmind acpidisp_od_attrs_t od_attrs; /* Attributes */ 191 1.9.2.2 rmind device_t od_device; /* Matching base device */ 192 1.9.2.2 rmind }; 193 1.9.2.2 rmind 194 1.9.2.2 rmind /* 195 1.9.2.2 rmind * acpidisp_odinfo: 196 1.9.2.2 rmind * 197 1.9.2.2 rmind * Information on connected output devices (ACPI 4.0a, Sec. B.4.2). This 198 1.9.2.2 rmind * structure enumerates all devices (_DOD package) connected to a display 199 1.9.2.2 rmind * adapter. Currently, this information is only used for display output 200 1.9.2.2 rmind * switching via hotkey. 201 1.9.2.2 rmind * 202 1.9.2.2 rmind * Invariants (after initialization): 203 1.9.2.2 rmind * 204 1.9.2.2 rmind * (oi_dev != NULL) && (oi_dev_count > 0) 205 1.9.2.2 rmind */ 206 1.9.2.2 rmind struct acpidisp_odinfo { 207 1.9.2.2 rmind struct acpidisp_outdev *oi_dev; /* Array of output devices */ 208 1.9.2.2 rmind uint32_t oi_dev_count; /* Number of output devices */ 209 1.9.2.2 rmind }; 210 1.9.2.2 rmind 211 1.9.2.2 rmind /* 212 1.9.2.2 rmind * acpidisp_vga_softc: 213 1.9.2.2 rmind * 214 1.9.2.2 rmind * Software state of an ACPI display adapter. 215 1.9.2.2 rmind * 216 1.9.2.2 rmind * Invariants (after attachment): 217 1.9.2.2 rmind * 218 1.9.2.2 rmind * ((sc_caps & ACPI_DISP_VGA_CAP__DOD) == 0) => (sc_odinfo == NULL) 219 1.9.2.2 rmind */ 220 1.9.2.2 rmind struct acpidisp_vga_softc { 221 1.9.2.2 rmind device_t sc_dev; /* Base device info */ 222 1.9.2.2 rmind struct acpi_devnode *sc_node; /* ACPI device node */ 223 1.9.2.2 rmind struct sysctllog *sc_log; /* Sysctl log */ 224 1.9.2.2 rmind kmutex_t sc_mtx; /* Mutex (shared w/ outputs) */ 225 1.9.2.2 rmind uint16_t sc_caps; /* Capabilities (methods) */ 226 1.9.2.2 rmind acpidisp_bios_policy_t sc_policy; /* BIOS switch policy (_DOS) */ 227 1.9.2.2 rmind struct acpidisp_odinfo *sc_odinfo; /* Connected output devices */ 228 1.9.2.2 rmind }; 229 1.9.2.2 rmind 230 1.9.2.2 rmind /* 231 1.9.2.2 rmind * ACPI display adapter capabilities (methods). 232 1.9.2.2 rmind */ 233 1.9.2.2 rmind #define ACPI_DISP_VGA_CAP__DOS __BIT(0) 234 1.9.2.2 rmind #define ACPI_DISP_VGA_CAP__DOD __BIT(1) 235 1.9.2.2 rmind #define ACPI_DISP_VGA_CAP__ROM __BIT(2) 236 1.9.2.2 rmind #define ACPI_DISP_VGA_CAP__GPD __BIT(3) 237 1.9.2.2 rmind #define ACPI_DISP_VGA_CAP__SPD __BIT(4) 238 1.9.2.2 rmind #define ACPI_DISP_VGA_CAP__VPO __BIT(5) 239 1.9.2.2 rmind 240 1.9.2.2 rmind /* 241 1.9.2.2 rmind * acpidisp_acpivga_attach_args: 242 1.9.2.2 rmind * 243 1.9.2.2 rmind * Attachment structure for the acpivga interface. Used to attach display 244 1.9.2.2 rmind * output devices under a display adapter. 245 1.9.2.2 rmind */ 246 1.9.2.2 rmind struct acpidisp_acpivga_attach_args { 247 1.9.2.2 rmind struct acpi_devnode *aa_node; /* ACPI device node */ 248 1.9.2.2 rmind kmutex_t *aa_mtx; /* Shared mutex */ 249 1.9.2.2 rmind }; 250 1.9.2.2 rmind 251 1.9.2.2 rmind /* 252 1.9.2.2 rmind * acpidisp_brctl: 253 1.9.2.2 rmind * 254 1.9.2.2 rmind * Brightness control (ACPI 4.0a, Sec. B.6.2 to B.6.4). This structure 255 1.9.2.2 rmind * contains the supported brightness levels (_BCL package) and the current 256 1.9.2.2 rmind * level. Following Windows 7 brightness control, we ignore the fullpower 257 1.9.2.2 rmind * and battery levels (as it simplifies the code). 258 1.9.2.2 rmind * 259 1.9.2.2 rmind * The array bc_level is sorted in strictly ascending order. 260 1.9.2.2 rmind * 261 1.9.2.2 rmind * Invariants (after initialization): 262 1.9.2.2 rmind * 263 1.9.2.2 rmind * (bc_level != NULL) && (bc_level_count > 0) 264 1.9.2.2 rmind */ 265 1.9.2.2 rmind struct acpidisp_brctl { 266 1.9.2.2 rmind uint8_t *bc_level; /* Array of levels */ 267 1.9.2.2 rmind uint16_t bc_level_count; /* Number of levels */ 268 1.9.2.2 rmind uint8_t bc_current; /* Current level */ 269 1.9.2.2 rmind }; 270 1.9.2.2 rmind 271 1.9.2.2 rmind /* 272 1.9.2.2 rmind * Minimum brightness increment/decrement in response to increase/decrease 273 1.9.2.2 rmind * brightness hotkey notifications. Must be strictly positive. 274 1.9.2.2 rmind */ 275 1.9.2.2 rmind #define ACPI_DISP_BRCTL_STEP 5 276 1.9.2.2 rmind 277 1.9.2.2 rmind /* 278 1.9.2.2 rmind * acpidisp_out_softc: 279 1.9.2.2 rmind * 280 1.9.2.2 rmind * Software state of an ACPI display output device. 281 1.9.2.2 rmind * 282 1.9.2.2 rmind * Invariants (after attachment): 283 1.9.2.2 rmind * 284 1.9.2.2 rmind * ((sc_caps & ACPI_DISP_OUT_CAP__BCL) == 0) => (sc_brctl == NULL) 285 1.9.2.2 rmind * ((sc_caps & ACPI_DISP_OUT_CAP__BCM) == 0) => (sc_brctl == NULL) 286 1.9.2.2 rmind */ 287 1.9.2.2 rmind struct acpidisp_out_softc { 288 1.9.2.2 rmind device_t sc_dev; /* Base device info */ 289 1.9.2.2 rmind struct acpi_devnode *sc_node; /* ACPI device node */ 290 1.9.2.2 rmind struct sysctllog *sc_log; /* Sysctl log */ 291 1.9.2.2 rmind kmutex_t *sc_mtx; /* Mutex (shared w/ adapter) */ 292 1.9.2.2 rmind uint16_t sc_caps; /* Capabilities (methods) */ 293 1.9.2.2 rmind struct acpidisp_brctl *sc_brctl; /* Brightness control */ 294 1.9.2.2 rmind }; 295 1.9.2.2 rmind 296 1.9.2.2 rmind /* 297 1.9.2.2 rmind * ACPI display output device capabilities (methods). 298 1.9.2.2 rmind */ 299 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__BCL __BIT(0) 300 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__BCM __BIT(1) 301 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__BQC __BIT(2) 302 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__DDC __BIT(3) 303 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__DCS __BIT(4) 304 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__DGS __BIT(5) 305 1.9.2.2 rmind #define ACPI_DISP_OUT_CAP__DSS __BIT(6) 306 1.9.2.2 rmind 307 1.9.2.2 rmind static int acpidisp_vga_match(device_t, cfdata_t, void *); 308 1.9.2.2 rmind static void acpidisp_vga_attach(device_t, device_t, void *); 309 1.9.2.2 rmind static int acpidisp_vga_detach(device_t, int); 310 1.9.2.2 rmind static void acpidisp_vga_childdetached(device_t, device_t); 311 1.9.2.2 rmind 312 1.9.2.2 rmind static void acpidisp_vga_scan_outdevs(struct acpidisp_vga_softc *); 313 1.9.2.2 rmind static int acpidisp_acpivga_print(void *, const char *); 314 1.9.2.2 rmind 315 1.9.2.2 rmind static int acpidisp_out_match(device_t, cfdata_t, void *); 316 1.9.2.2 rmind static void acpidisp_out_attach(device_t, device_t, void *); 317 1.9.2.2 rmind static int acpidisp_out_detach(device_t, int); 318 1.9.2.2 rmind 319 1.9.2.2 rmind CFATTACH_DECL2_NEW(acpivga, sizeof(struct acpidisp_vga_softc), 320 1.9.2.2 rmind acpidisp_vga_match, acpidisp_vga_attach, acpidisp_vga_detach, NULL, 321 1.9.2.2 rmind NULL, acpidisp_vga_childdetached); 322 1.9.2.2 rmind 323 1.9.2.2 rmind CFATTACH_DECL_NEW(acpiout, sizeof(struct acpidisp_out_softc), 324 1.9.2.2 rmind acpidisp_out_match, acpidisp_out_attach, acpidisp_out_detach, NULL); 325 1.9.2.2 rmind 326 1.9.2.2 rmind static bool acpidisp_vga_resume(device_t, const pmf_qual_t *); 327 1.9.2.2 rmind static bool acpidisp_out_suspend(device_t, const pmf_qual_t *); 328 1.9.2.2 rmind static bool acpidisp_out_resume(device_t, const pmf_qual_t *); 329 1.9.2.2 rmind 330 1.9.2.2 rmind static uint16_t acpidisp_vga_capabilities(const struct acpi_devnode *); 331 1.9.2.2 rmind static uint16_t acpidisp_out_capabilities(const struct acpi_devnode *); 332 1.9.2.2 rmind static void acpidisp_vga_print_capabilities(device_t, uint16_t); 333 1.9.2.2 rmind static void acpidisp_out_print_capabilities(device_t, uint16_t); 334 1.9.2.2 rmind 335 1.9.2.2 rmind static void acpidisp_vga_notify_handler(ACPI_HANDLE, uint32_t, void *); 336 1.9.2.2 rmind static void acpidisp_out_notify_handler(ACPI_HANDLE, uint32_t, void *); 337 1.9.2.2 rmind 338 1.9.2.2 rmind static void acpidisp_vga_cycle_output_device_callback(void *); 339 1.9.2.2 rmind static void acpidisp_vga_output_device_change_callback(void *); 340 1.9.2.2 rmind static void acpidisp_out_increase_brightness_callback(void *); 341 1.9.2.2 rmind static void acpidisp_out_decrease_brightness_callback(void *); 342 1.9.2.2 rmind static void acpidisp_out_cycle_brightness_callback(void *); 343 1.9.2.2 rmind static void acpidisp_out_zero_brightness_callback(void *); 344 1.9.2.2 rmind 345 1.9.2.2 rmind static void acpidisp_vga_sysctl_setup(struct acpidisp_vga_softc *); 346 1.9.2.2 rmind static void acpidisp_out_sysctl_setup(struct acpidisp_out_softc *); 347 1.9.2.2 rmind #ifdef ACPI_DEBUG 348 1.9.2.2 rmind static int acpidisp_vga_sysctl_policy(SYSCTLFN_PROTO); 349 1.9.2.2 rmind #endif 350 1.9.2.2 rmind static int acpidisp_vga_sysctl_policy_output(SYSCTLFN_PROTO); 351 1.9.2.2 rmind #ifdef ACPI_DISP_SWITCH_SYSCTLS 352 1.9.2.2 rmind static int acpidisp_out_sysctl_status(SYSCTLFN_PROTO); 353 1.9.2.2 rmind static int acpidisp_out_sysctl_state(SYSCTLFN_PROTO); 354 1.9.2.2 rmind #endif 355 1.9.2.2 rmind static int acpidisp_out_sysctl_brightness(SYSCTLFN_PROTO); 356 1.9.2.2 rmind 357 1.9.2.2 rmind static struct acpidisp_odinfo * 358 1.9.2.2 rmind acpidisp_init_odinfo(const struct acpidisp_vga_softc *); 359 1.9.2.2 rmind static void acpidisp_vga_bind_outdevs(struct acpidisp_vga_softc *); 360 1.9.2.2 rmind static struct acpidisp_brctl * 361 1.9.2.2 rmind acpidisp_init_brctl(const struct acpidisp_out_softc *); 362 1.9.2.2 rmind 363 1.9.2.2 rmind static int acpidisp_set_policy(const struct acpidisp_vga_softc *, 364 1.9.2.2 rmind uint8_t); 365 1.9.2.2 rmind static int acpidisp_get_status(const struct acpidisp_out_softc *, 366 1.9.2.2 rmind uint32_t *); 367 1.9.2.2 rmind static int acpidisp_get_state(const struct acpidisp_out_softc *, 368 1.9.2.2 rmind uint32_t *); 369 1.9.2.2 rmind static int acpidisp_set_state(const struct acpidisp_out_softc *, 370 1.9.2.2 rmind uint32_t); 371 1.9.2.2 rmind static int acpidisp_get_brightness(const struct acpidisp_out_softc *, 372 1.9.2.2 rmind uint8_t *); 373 1.9.2.2 rmind static int acpidisp_set_brightness(const struct acpidisp_out_softc *, 374 1.9.2.2 rmind uint8_t); 375 1.9.2.2 rmind 376 1.9.2.2 rmind static void acpidisp_print_odinfo(device_t, const struct acpidisp_odinfo *); 377 1.9.2.2 rmind static void acpidisp_print_brctl(device_t, const struct acpidisp_brctl *); 378 1.9.2.2 rmind static void acpidisp_print_od_attrs(acpidisp_od_attrs_t); 379 1.9.2.2 rmind 380 1.9.2.2 rmind static bool acpidisp_has_method(ACPI_HANDLE, const char *, 381 1.9.2.2 rmind ACPI_OBJECT_TYPE); 382 1.9.2.2 rmind static ACPI_STATUS 383 1.9.2.2 rmind acpidisp_eval_package(ACPI_HANDLE, const char *, ACPI_OBJECT **, 384 1.9.2.2 rmind unsigned int); 385 1.9.2.2 rmind static void acpidisp_array_search(const uint8_t *, uint16_t, int, uint8_t *, 386 1.9.2.2 rmind uint8_t *); 387 1.9.2.2 rmind 388 1.9.2.2 rmind /* 389 1.9.2.2 rmind * Autoconfiguration for the acpivga driver. 390 1.9.2.2 rmind */ 391 1.9.2.2 rmind 392 1.9.2.2 rmind static int 393 1.9.2.2 rmind acpidisp_vga_match(device_t parent, cfdata_t match, void *aux) 394 1.9.2.2 rmind { 395 1.9.2.2 rmind struct acpi_attach_args *aa = aux; 396 1.9.2.2 rmind struct acpi_devnode *ad = aa->aa_node; 397 1.9.2.2 rmind struct acpi_pci_info *ap; 398 1.9.2.2 rmind pcireg_t id, class; 399 1.9.2.2 rmind pcitag_t tag; 400 1.9.2.2 rmind 401 1.9.2.2 rmind if (ad->ad_type != ACPI_TYPE_DEVICE) 402 1.9.2.2 rmind return 0; 403 1.9.2.2 rmind 404 1.9.2.2 rmind ap = ad->ad_pciinfo; 405 1.9.2.2 rmind 406 1.9.2.2 rmind if (ap == NULL) 407 1.9.2.2 rmind return 0; 408 1.9.2.2 rmind 409 1.9.2.2 rmind if ((ap->ap_flags & ACPI_PCI_INFO_DEVICE) == 0) 410 1.9.2.2 rmind return 0; 411 1.9.2.2 rmind 412 1.9.2.2 rmind if (ap->ap_function == 0xffff) 413 1.9.2.2 rmind return 0; 414 1.9.2.2 rmind 415 1.9.2.2 rmind KASSERT(ap->ap_bus < 256); 416 1.9.2.2 rmind KASSERT(ap->ap_device < 32); 417 1.9.2.2 rmind KASSERT(ap->ap_function < 8); 418 1.9.2.2 rmind 419 1.9.2.2 rmind /* 420 1.9.2.2 rmind * Check that the PCI device is present, verify 421 1.9.2.2 rmind * the class of the PCI device, and finally see 422 1.9.2.2 rmind * if the ACPI device is capable of something. 423 1.9.2.2 rmind */ 424 1.9.2.2 rmind tag = pci_make_tag(aa->aa_pc, ap->ap_bus, 425 1.9.2.2 rmind ap->ap_device, ap->ap_function); 426 1.9.2.2 rmind 427 1.9.2.2 rmind id = pci_conf_read(aa->aa_pc, tag, PCI_ID_REG); 428 1.9.2.2 rmind 429 1.9.2.2 rmind if (PCI_VENDOR(id) == PCI_VENDOR_INVALID || PCI_VENDOR(id) == 0) 430 1.9.2.2 rmind return 0; 431 1.9.2.2 rmind 432 1.9.2.2 rmind class = pci_conf_read(aa->aa_pc, tag, PCI_CLASS_REG); 433 1.9.2.2 rmind 434 1.9.2.2 rmind if (PCI_CLASS(class) != PCI_CLASS_DISPLAY) 435 1.9.2.2 rmind return 0; 436 1.9.2.2 rmind 437 1.9.2.2 rmind if (acpidisp_vga_capabilities(ad) == 0) 438 1.9.2.2 rmind return 0; 439 1.9.2.2 rmind 440 1.9.2.2 rmind return 1; 441 1.9.2.2 rmind } 442 1.9.2.2 rmind 443 1.9.2.2 rmind static void 444 1.9.2.2 rmind acpidisp_vga_attach(device_t parent, device_t self, void *aux) 445 1.9.2.2 rmind { 446 1.9.2.2 rmind struct acpidisp_vga_softc *asc = device_private(self); 447 1.9.2.2 rmind struct acpi_attach_args *aa = aux; 448 1.9.2.2 rmind struct acpi_devnode *ad = aa->aa_node; 449 1.9.2.2 rmind 450 1.9.2.2 rmind aprint_naive(": ACPI Display Adapter\n"); 451 1.9.2.2 rmind aprint_normal(": ACPI Display Adapter\n"); 452 1.9.2.2 rmind 453 1.9.2.2 rmind asc->sc_node = ad; 454 1.9.2.2 rmind asc->sc_dev = self; 455 1.9.2.2 rmind asc->sc_log = NULL; 456 1.9.2.2 rmind 457 1.9.2.2 rmind mutex_init(&asc->sc_mtx, MUTEX_DEFAULT, IPL_NONE); 458 1.9.2.2 rmind 459 1.9.2.2 rmind asc->sc_caps = acpidisp_vga_capabilities(ad); 460 1.9.2.2 rmind asc->sc_policy = acpidisp_default_bios_policy; 461 1.9.2.2 rmind asc->sc_odinfo = NULL; 462 1.9.2.2 rmind 463 1.9.2.2 rmind acpidisp_vga_print_capabilities(self, asc->sc_caps); 464 1.9.2.2 rmind 465 1.9.2.2 rmind /* 466 1.9.2.2 rmind * Enumerate connected output devices, attach 467 1.9.2.2 rmind * output display devices, and bind the attached 468 1.9.2.2 rmind * output devices to the enumerated ones. 469 1.9.2.2 rmind */ 470 1.9.2.2 rmind asc->sc_odinfo = acpidisp_init_odinfo(asc); 471 1.9.2.2 rmind 472 1.9.2.2 rmind acpidisp_vga_scan_outdevs(asc); 473 1.9.2.2 rmind 474 1.9.2.2 rmind if (asc->sc_odinfo != NULL) { 475 1.9.2.2 rmind acpidisp_vga_bind_outdevs(asc); 476 1.9.2.2 rmind acpidisp_print_odinfo(self, asc->sc_odinfo); 477 1.9.2.2 rmind } 478 1.9.2.2 rmind 479 1.9.2.2 rmind /* 480 1.9.2.2 rmind * Set BIOS automatic switch policy. 481 1.9.2.2 rmind * 482 1.9.2.2 rmind * Many laptops do not support output device switching with 483 1.9.2.2 rmind * the methods specified in the ACPI extensions for display 484 1.9.2.2 rmind * adapters. Therefore, we leave the BIOS output switch policy 485 1.9.2.2 rmind * on "auto" instead of setting it to "normal". 486 1.9.2.2 rmind */ 487 1.9.2.2 rmind asc->sc_policy.fmt.output = ACPI_DISP_POLICY_OUTPUT_AUTO; 488 1.9.2.2 rmind asc->sc_policy.fmt.brightness = ACPI_DISP_POLICY_BRIGHTNESS_NORMAL; 489 1.9.2.2 rmind 490 1.9.2.2 rmind if (acpidisp_set_policy(asc, asc->sc_policy.raw)) 491 1.9.2.2 rmind asc->sc_policy = acpidisp_default_bios_policy; 492 1.9.2.2 rmind 493 1.9.2.2 rmind acpidisp_vga_sysctl_setup(asc); 494 1.9.2.2 rmind 495 1.9.2.2 rmind (void)pmf_device_register(self, NULL, acpidisp_vga_resume); 496 1.9.2.2 rmind (void)acpi_register_notify(asc->sc_node, acpidisp_vga_notify_handler); 497 1.9.2.2 rmind } 498 1.9.2.2 rmind 499 1.9.2.2 rmind static int 500 1.9.2.2 rmind acpidisp_vga_detach(device_t self, int flags) 501 1.9.2.2 rmind { 502 1.9.2.2 rmind struct acpidisp_vga_softc *asc = device_private(self); 503 1.9.2.2 rmind struct acpidisp_odinfo *oi = asc->sc_odinfo; 504 1.9.2.2 rmind int rc; 505 1.9.2.2 rmind 506 1.9.2.2 rmind pmf_device_deregister(self); 507 1.9.2.2 rmind 508 1.9.2.2 rmind if (asc->sc_log != NULL) 509 1.9.2.2 rmind sysctl_teardown(&asc->sc_log); 510 1.9.2.2 rmind 511 1.9.2.2 rmind asc->sc_policy = acpidisp_default_bios_policy; 512 1.9.2.2 rmind acpidisp_set_policy(asc, asc->sc_policy.raw); 513 1.9.2.2 rmind 514 1.9.2.2 rmind acpi_deregister_notify(asc->sc_node); 515 1.9.2.2 rmind 516 1.9.2.2 rmind if ((rc = config_detach_children(self, flags)) != 0) 517 1.9.2.2 rmind return rc; 518 1.9.2.2 rmind 519 1.9.2.2 rmind if (oi != NULL) { 520 1.9.2.2 rmind kmem_free(oi->oi_dev, 521 1.9.2.2 rmind oi->oi_dev_count * sizeof(*oi->oi_dev)); 522 1.9.2.2 rmind kmem_free(oi, sizeof(*oi)); 523 1.9.2.2 rmind } 524 1.9.2.2 rmind 525 1.9.2.2 rmind mutex_destroy(&asc->sc_mtx); 526 1.9.2.2 rmind 527 1.9.2.2 rmind return 0; 528 1.9.2.2 rmind } 529 1.9.2.2 rmind 530 1.9.2.2 rmind void 531 1.9.2.2 rmind acpidisp_vga_childdetached(device_t self, device_t child) 532 1.9.2.2 rmind { 533 1.9.2.2 rmind struct acpidisp_vga_softc *asc = device_private(self); 534 1.9.2.2 rmind struct acpidisp_odinfo *oi = asc->sc_odinfo; 535 1.9.2.2 rmind struct acpidisp_outdev *od; 536 1.9.2.2 rmind struct acpi_devnode *ad; 537 1.9.2.2 rmind uint32_t i; 538 1.9.2.2 rmind 539 1.9.2.2 rmind SIMPLEQ_FOREACH(ad, &asc->sc_node->ad_child_head, ad_child_list) { 540 1.9.2.2 rmind 541 1.9.2.2 rmind if (ad->ad_device == child) 542 1.9.2.2 rmind ad->ad_device = NULL; 543 1.9.2.2 rmind } 544 1.9.2.2 rmind 545 1.9.2.2 rmind if (oi == NULL) 546 1.9.2.2 rmind return; 547 1.9.2.2 rmind 548 1.9.2.2 rmind for (i = 0, od = oi->oi_dev; i < oi->oi_dev_count; i++, od++) { 549 1.9.2.2 rmind if (od->od_device == child) 550 1.9.2.2 rmind od->od_device = NULL; 551 1.9.2.2 rmind } 552 1.9.2.2 rmind } 553 1.9.2.2 rmind 554 1.9.2.2 rmind /* 555 1.9.2.2 rmind * Attachment of acpiout under acpivga. 556 1.9.2.2 rmind */ 557 1.9.2.2 rmind 558 1.9.2.2 rmind static void 559 1.9.2.2 rmind acpidisp_vga_scan_outdevs(struct acpidisp_vga_softc *asc) 560 1.9.2.2 rmind { 561 1.9.2.2 rmind struct acpidisp_acpivga_attach_args aa; 562 1.9.2.2 rmind struct acpi_devnode *ad; 563 1.9.2.2 rmind 564 1.9.2.2 rmind /* 565 1.9.2.2 rmind * Display output devices are ACPI children of the display adapter. 566 1.9.2.2 rmind */ 567 1.9.2.2 rmind SIMPLEQ_FOREACH(ad, &asc->sc_node->ad_child_head, ad_child_list) { 568 1.9.2.2 rmind 569 1.9.2.2 rmind if (ad->ad_device != NULL) /* This should not happen. */ 570 1.9.2.2 rmind continue; 571 1.9.2.2 rmind 572 1.9.2.2 rmind aa.aa_node = ad; 573 1.9.2.2 rmind aa.aa_mtx = &asc->sc_mtx; 574 1.9.2.2 rmind 575 1.9.2.2 rmind ad->ad_device = config_found_ia(asc->sc_dev, 576 1.9.2.2 rmind "acpivga", &aa, acpidisp_acpivga_print); 577 1.9.2.2 rmind } 578 1.9.2.2 rmind } 579 1.9.2.2 rmind 580 1.9.2.2 rmind static int 581 1.9.2.2 rmind acpidisp_acpivga_print(void *aux, const char *pnp) 582 1.9.2.2 rmind { 583 1.9.2.2 rmind struct acpidisp_acpivga_attach_args *aa = aux; 584 1.9.2.2 rmind struct acpi_devnode *ad = aa->aa_node; 585 1.9.2.2 rmind 586 1.9.2.2 rmind if (pnp) { 587 1.9.2.2 rmind aprint_normal("%s at %s", ad->ad_name, pnp); 588 1.9.2.2 rmind } else { 589 1.9.2.2 rmind aprint_normal(" (%s", ad->ad_name); 590 1.9.2.2 rmind if (ad->ad_devinfo->Valid & ACPI_VALID_ADR) 591 1.9.2.2 rmind aprint_normal(", 0x%04"PRIx64, ad->ad_devinfo->Address); 592 1.9.2.2 rmind aprint_normal(")"); 593 1.9.2.2 rmind } 594 1.9.2.2 rmind 595 1.9.2.2 rmind return UNCONF; 596 1.9.2.2 rmind } 597 1.9.2.2 rmind 598 1.9.2.2 rmind /* 599 1.9.2.2 rmind * Autoconfiguration for the acpiout driver. 600 1.9.2.2 rmind */ 601 1.9.2.2 rmind 602 1.9.2.2 rmind static int 603 1.9.2.2 rmind acpidisp_out_match(device_t parent, cfdata_t match, void *aux) 604 1.9.2.2 rmind { 605 1.9.2.2 rmind struct acpidisp_acpivga_attach_args *aa = aux; 606 1.9.2.2 rmind struct acpi_devnode *ad = aa->aa_node; 607 1.9.2.2 rmind 608 1.9.2.2 rmind if (ad->ad_type != ACPI_TYPE_DEVICE) 609 1.9.2.2 rmind return 0; 610 1.9.2.2 rmind 611 1.9.2.2 rmind /* 612 1.9.2.2 rmind * The method _ADR is required for display output 613 1.9.2.2 rmind * devices (ACPI 4.0a, Sec. B.6.1). 614 1.9.2.2 rmind */ 615 1.9.2.2 rmind if (!(acpidisp_has_method(ad->ad_handle, "_ADR", ACPI_TYPE_INTEGER))) 616 1.9.2.2 rmind return 0; 617 1.9.2.2 rmind 618 1.9.2.2 rmind return 1; 619 1.9.2.2 rmind } 620 1.9.2.2 rmind 621 1.9.2.2 rmind static void 622 1.9.2.2 rmind acpidisp_out_attach(device_t parent, device_t self, void *aux) 623 1.9.2.2 rmind { 624 1.9.2.2 rmind struct acpidisp_out_softc *osc = device_private(self); 625 1.9.2.2 rmind struct acpidisp_acpivga_attach_args *aa = aux; 626 1.9.2.2 rmind struct acpi_devnode *ad = aa->aa_node; 627 1.9.2.2 rmind struct acpidisp_brctl *bc; 628 1.9.2.2 rmind 629 1.9.2.2 rmind aprint_naive("\n"); 630 1.9.2.2 rmind aprint_normal(": ACPI Display Output Device\n"); 631 1.9.2.2 rmind 632 1.9.2.2 rmind osc->sc_dev = self; 633 1.9.2.2 rmind osc->sc_node = ad; 634 1.9.2.2 rmind osc->sc_log = NULL; 635 1.9.2.2 rmind osc->sc_mtx = aa->aa_mtx; 636 1.9.2.2 rmind osc->sc_caps = acpidisp_out_capabilities(ad); 637 1.9.2.2 rmind osc->sc_brctl = NULL; 638 1.9.2.2 rmind 639 1.9.2.2 rmind acpidisp_out_print_capabilities(self, osc->sc_caps); 640 1.9.2.2 rmind 641 1.9.2.2 rmind osc->sc_brctl = acpidisp_init_brctl(osc); 642 1.9.2.2 rmind bc = osc->sc_brctl; 643 1.9.2.2 rmind if (bc != NULL) { 644 1.9.2.2 rmind bc->bc_current = bc->bc_level[bc->bc_level_count - 1]; 645 1.9.2.2 rmind 646 1.9.2.2 rmind /* 647 1.9.2.2 rmind * Synchronize ACPI and driver brightness levels, and 648 1.9.2.2 rmind * check that brightness control is working. 649 1.9.2.2 rmind */ 650 1.9.2.2 rmind (void)acpidisp_get_brightness(osc, &bc->bc_current); 651 1.9.2.2 rmind if (acpidisp_set_brightness(osc, bc->bc_current)) { 652 1.9.2.2 rmind kmem_free(bc->bc_level, 653 1.9.2.2 rmind bc->bc_level_count * sizeof(*bc->bc_level)); 654 1.9.2.2 rmind kmem_free(bc, sizeof(*bc)); 655 1.9.2.2 rmind osc->sc_brctl = NULL; 656 1.9.2.2 rmind } else { 657 1.9.2.2 rmind acpidisp_print_brctl(self, osc->sc_brctl); 658 1.9.2.2 rmind } 659 1.9.2.2 rmind } 660 1.9.2.2 rmind 661 1.9.2.2 rmind /* Install ACPI notify handler. */ 662 1.9.2.2 rmind (void)acpi_register_notify(osc->sc_node, acpidisp_out_notify_handler); 663 1.9.2.2 rmind 664 1.9.2.2 rmind /* Setup sysctl. */ 665 1.9.2.2 rmind acpidisp_out_sysctl_setup(osc); 666 1.9.2.2 rmind 667 1.9.2.2 rmind /* Power management. */ 668 1.9.2.2 rmind if (!pmf_device_register(self, acpidisp_out_suspend, 669 1.9.2.2 rmind acpidisp_out_resume)) 670 1.9.2.2 rmind aprint_error_dev(self, "couldn't establish power handler\n"); 671 1.9.2.2 rmind } 672 1.9.2.2 rmind 673 1.9.2.2 rmind static int 674 1.9.2.2 rmind acpidisp_out_detach(device_t self, int flags) 675 1.9.2.2 rmind { 676 1.9.2.2 rmind struct acpidisp_out_softc *osc = device_private(self); 677 1.9.2.2 rmind struct acpidisp_brctl *bc = osc->sc_brctl; 678 1.9.2.2 rmind 679 1.9.2.2 rmind pmf_device_deregister(self); 680 1.9.2.2 rmind 681 1.9.2.2 rmind if (osc->sc_log != NULL) 682 1.9.2.2 rmind sysctl_teardown(&osc->sc_log); 683 1.9.2.2 rmind 684 1.9.2.2 rmind acpi_deregister_notify(osc->sc_node); 685 1.9.2.2 rmind 686 1.9.2.2 rmind if (bc != NULL) { 687 1.9.2.2 rmind kmem_free(bc->bc_level, 688 1.9.2.2 rmind bc->bc_level_count * sizeof(*bc->bc_level)); 689 1.9.2.2 rmind kmem_free(bc, sizeof(*bc)); 690 1.9.2.2 rmind } 691 1.9.2.2 rmind 692 1.9.2.2 rmind return 0; 693 1.9.2.2 rmind } 694 1.9.2.2 rmind 695 1.9.2.2 rmind /* 696 1.9.2.2 rmind * Power management. 697 1.9.2.2 rmind */ 698 1.9.2.2 rmind 699 1.9.2.2 rmind static bool 700 1.9.2.2 rmind acpidisp_vga_resume(device_t self, const pmf_qual_t *qual) 701 1.9.2.2 rmind { 702 1.9.2.2 rmind struct acpidisp_vga_softc *asc = device_private(self); 703 1.9.2.2 rmind 704 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 705 1.9.2.2 rmind (void)acpidisp_set_policy(asc, asc->sc_policy.raw); 706 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 707 1.9.2.2 rmind 708 1.9.2.2 rmind return true; 709 1.9.2.2 rmind } 710 1.9.2.2 rmind 711 1.9.2.2 rmind static bool 712 1.9.2.2 rmind acpidisp_out_suspend(device_t self, const pmf_qual_t *qual) 713 1.9.2.2 rmind { 714 1.9.2.2 rmind struct acpidisp_out_softc *osc = device_private(self); 715 1.9.2.2 rmind 716 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 717 1.9.2.2 rmind if (osc->sc_brctl != NULL) 718 1.9.2.2 rmind (void)acpidisp_get_brightness(osc, &osc->sc_brctl->bc_current); 719 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 720 1.9.2.2 rmind 721 1.9.2.2 rmind return true; 722 1.9.2.2 rmind } 723 1.9.2.2 rmind 724 1.9.2.2 rmind static bool 725 1.9.2.2 rmind acpidisp_out_resume(device_t self, const pmf_qual_t *qual) 726 1.9.2.2 rmind { 727 1.9.2.2 rmind struct acpidisp_out_softc *osc = device_private(self); 728 1.9.2.2 rmind 729 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 730 1.9.2.2 rmind if (osc->sc_brctl != NULL) 731 1.9.2.2 rmind (void)acpidisp_set_brightness(osc, osc->sc_brctl->bc_current); 732 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 733 1.9.2.2 rmind 734 1.9.2.2 rmind return true; 735 1.9.2.2 rmind } 736 1.9.2.2 rmind 737 1.9.2.2 rmind /* 738 1.9.2.2 rmind * Capabilities (available methods). 739 1.9.2.2 rmind */ 740 1.9.2.2 rmind 741 1.9.2.2 rmind static uint16_t 742 1.9.2.2 rmind acpidisp_vga_capabilities(const struct acpi_devnode *ad) 743 1.9.2.2 rmind { 744 1.9.2.2 rmind uint16_t cap; 745 1.9.2.2 rmind 746 1.9.2.2 rmind cap = 0; 747 1.9.2.2 rmind 748 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_DOS", ACPI_TYPE_METHOD)) 749 1.9.2.2 rmind cap |= ACPI_DISP_VGA_CAP__DOS; 750 1.9.2.2 rmind 751 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_DOD", ACPI_TYPE_PACKAGE)) 752 1.9.2.2 rmind cap |= ACPI_DISP_VGA_CAP__DOD; 753 1.9.2.2 rmind 754 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_ROM", ACPI_TYPE_BUFFER)) 755 1.9.2.2 rmind cap |= ACPI_DISP_VGA_CAP__ROM; 756 1.9.2.2 rmind 757 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_GPD", ACPI_TYPE_INTEGER)) 758 1.9.2.2 rmind cap |= ACPI_DISP_VGA_CAP__GPD; 759 1.9.2.2 rmind 760 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_SPD", ACPI_TYPE_METHOD)) 761 1.9.2.2 rmind cap |= ACPI_DISP_VGA_CAP__SPD; 762 1.9.2.2 rmind 763 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_VPO", ACPI_TYPE_INTEGER)) 764 1.9.2.2 rmind cap |= ACPI_DISP_VGA_CAP__VPO; 765 1.9.2.2 rmind 766 1.9.2.2 rmind return cap; 767 1.9.2.2 rmind } 768 1.9.2.2 rmind 769 1.9.2.2 rmind static void 770 1.9.2.2 rmind acpidisp_vga_print_capabilities(device_t self, uint16_t cap) 771 1.9.2.2 rmind { 772 1.9.2.2 rmind aprint_debug_dev(self, "capabilities:%s%s%s%s%s%s\n", 773 1.9.2.2 rmind (cap & ACPI_DISP_VGA_CAP__DOS) ? " _DOS" : "", 774 1.9.2.2 rmind (cap & ACPI_DISP_VGA_CAP__DOD) ? " _DOD" : "", 775 1.9.2.2 rmind (cap & ACPI_DISP_VGA_CAP__ROM) ? " _ROM" : "", 776 1.9.2.2 rmind (cap & ACPI_DISP_VGA_CAP__GPD) ? " _GPD" : "", 777 1.9.2.2 rmind (cap & ACPI_DISP_VGA_CAP__SPD) ? " _SPD" : "", 778 1.9.2.2 rmind (cap & ACPI_DISP_VGA_CAP__VPO) ? " _VPO" : ""); 779 1.9.2.2 rmind } 780 1.9.2.2 rmind 781 1.9.2.2 rmind static uint16_t 782 1.9.2.2 rmind acpidisp_out_capabilities(const struct acpi_devnode *ad) 783 1.9.2.2 rmind { 784 1.9.2.2 rmind uint16_t cap; 785 1.9.2.2 rmind 786 1.9.2.2 rmind cap = 0; 787 1.9.2.2 rmind 788 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_BCL", ACPI_TYPE_PACKAGE)) 789 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__BCL; 790 1.9.2.2 rmind 791 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_BCM", ACPI_TYPE_METHOD)) 792 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__BCM; 793 1.9.2.2 rmind 794 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_BQC", ACPI_TYPE_INTEGER)) 795 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__BQC; 796 1.9.2.2 rmind 797 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_DDC", ACPI_TYPE_METHOD)) 798 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__DDC; 799 1.9.2.2 rmind 800 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_DCS", ACPI_TYPE_INTEGER)) 801 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__DCS; 802 1.9.2.2 rmind 803 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_DGS", ACPI_TYPE_INTEGER)) 804 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__DGS; 805 1.9.2.2 rmind 806 1.9.2.2 rmind if (acpidisp_has_method(ad->ad_handle, "_DSS", ACPI_TYPE_METHOD)) 807 1.9.2.2 rmind cap |= ACPI_DISP_OUT_CAP__DSS; 808 1.9.2.2 rmind 809 1.9.2.2 rmind return cap; 810 1.9.2.2 rmind } 811 1.9.2.2 rmind 812 1.9.2.2 rmind static void 813 1.9.2.2 rmind acpidisp_out_print_capabilities(device_t self, uint16_t cap) 814 1.9.2.2 rmind { 815 1.9.2.2 rmind aprint_debug_dev(self, "capabilities:%s%s%s%s%s%s%s\n", 816 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__BCL) ? " _BCL" : "", 817 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__BCM) ? " _BCM" : "", 818 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__BQC) ? " _BQC" : "", 819 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__DDC) ? " _DDC" : "", 820 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__DCS) ? " _DCS" : "", 821 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__DGS) ? " _DGS" : "", 822 1.9.2.2 rmind (cap & ACPI_DISP_OUT_CAP__DSS) ? " _DSS" : ""); 823 1.9.2.2 rmind } 824 1.9.2.2 rmind 825 1.9.2.2 rmind /* 826 1.9.2.2 rmind * ACPI notify handlers. 827 1.9.2.2 rmind */ 828 1.9.2.2 rmind 829 1.9.2.2 rmind static void 830 1.9.2.2 rmind acpidisp_vga_notify_handler(ACPI_HANDLE handle, uint32_t notify, 831 1.9.2.2 rmind void *context) 832 1.9.2.2 rmind { 833 1.9.2.2 rmind struct acpidisp_vga_softc *asc = device_private(context); 834 1.9.2.2 rmind ACPI_OSD_EXEC_CALLBACK callback; 835 1.9.2.2 rmind 836 1.9.2.2 rmind callback = NULL; 837 1.9.2.2 rmind 838 1.9.2.2 rmind switch (notify) { 839 1.9.2.2 rmind case ACPI_NOTIFY_CycleOutputDevice: 840 1.9.2.2 rmind callback = acpidisp_vga_cycle_output_device_callback; 841 1.9.2.2 rmind break; 842 1.9.2.2 rmind case ACPI_NOTIFY_OutputDeviceStatusChange: 843 1.9.2.2 rmind callback = acpidisp_vga_output_device_change_callback; 844 1.9.2.2 rmind break; 845 1.9.2.2 rmind case ACPI_NOTIFY_CycleDisplayOutputHotkeyPressed: 846 1.9.2.2 rmind case ACPI_NOTIFY_NextDisplayOutputHotkeyPressed: 847 1.9.2.2 rmind case ACPI_NOTIFY_PreviousDisplayOutputHotkeyPressed: 848 1.9.2.2 rmind aprint_debug_dev(asc->sc_dev, 849 1.9.2.2 rmind "unhandled notify: 0x%"PRIx32"\n", notify); 850 1.9.2.2 rmind return; 851 1.9.2.2 rmind default: 852 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, 853 1.9.2.2 rmind "unknown notify: 0x%"PRIx32"\n", notify); 854 1.9.2.2 rmind return; 855 1.9.2.2 rmind } 856 1.9.2.2 rmind 857 1.9.2.2 rmind KASSERT(callback != NULL); 858 1.9.2.2 rmind (void)AcpiOsExecute(OSL_NOTIFY_HANDLER, callback, asc); 859 1.9.2.2 rmind } 860 1.9.2.2 rmind 861 1.9.2.2 rmind static void 862 1.9.2.2 rmind acpidisp_out_notify_handler(ACPI_HANDLE handle, uint32_t notify, 863 1.9.2.2 rmind void *context) 864 1.9.2.2 rmind { 865 1.9.2.2 rmind struct acpidisp_out_softc *osc = device_private(context); 866 1.9.2.2 rmind ACPI_OSD_EXEC_CALLBACK callback; 867 1.9.2.2 rmind 868 1.9.2.2 rmind callback = NULL; 869 1.9.2.2 rmind 870 1.9.2.2 rmind switch (notify) { 871 1.9.2.2 rmind case ACPI_NOTIFY_IncreaseBrightness: 872 1.9.2.2 rmind callback = acpidisp_out_increase_brightness_callback; 873 1.9.2.2 rmind break; 874 1.9.2.2 rmind case ACPI_NOTIFY_DecreaseBrightness: 875 1.9.2.2 rmind callback = acpidisp_out_decrease_brightness_callback; 876 1.9.2.2 rmind break; 877 1.9.2.2 rmind case ACPI_NOTIFY_CycleBrightness: 878 1.9.2.2 rmind callback = acpidisp_out_cycle_brightness_callback; 879 1.9.2.2 rmind break; 880 1.9.2.2 rmind case ACPI_NOTIFY_ZeroBrightness: 881 1.9.2.2 rmind callback = acpidisp_out_zero_brightness_callback; 882 1.9.2.2 rmind break; 883 1.9.2.2 rmind case ACPI_NOTIFY_DisplayDeviceOff: 884 1.9.2.2 rmind aprint_debug_dev(osc->sc_dev, 885 1.9.2.2 rmind "unhandled notify: 0x%"PRIx32"\n", notify); 886 1.9.2.2 rmind return; 887 1.9.2.2 rmind default: 888 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, 889 1.9.2.2 rmind "unknown notify: 0x%"PRIx32"\n", notify); 890 1.9.2.2 rmind return; 891 1.9.2.2 rmind } 892 1.9.2.2 rmind 893 1.9.2.2 rmind KASSERT(callback != NULL); 894 1.9.2.2 rmind (void)AcpiOsExecute(OSL_NOTIFY_HANDLER, callback, osc); 895 1.9.2.2 rmind } 896 1.9.2.2 rmind 897 1.9.2.2 rmind /* 898 1.9.2.2 rmind * ACPI notify callbacks. 899 1.9.2.2 rmind * 900 1.9.2.2 rmind * Exclusive access to the sc_odinfo field of struct acpidisp_vga_softc is 901 1.9.2.2 rmind * guaranteed since: 902 1.9.2.2 rmind * 903 1.9.2.2 rmind * (a) this field is only used in ACPI display notify callbacks, 904 1.9.2.2 rmind * (b) ACPI display notify callbacks are scheduled with AcpiOsExecute, 905 1.9.2.2 rmind * (c) callbacks scheduled with AcpiOsExecute are executed sequentially. 906 1.9.2.2 rmind */ 907 1.9.2.2 rmind 908 1.9.2.2 rmind static void 909 1.9.2.2 rmind acpidisp_vga_cycle_output_device_callback(void *arg) 910 1.9.2.2 rmind { 911 1.9.2.2 rmind struct acpidisp_vga_softc *asc = arg; 912 1.9.2.2 rmind struct acpidisp_odinfo *oi = asc->sc_odinfo; 913 1.9.2.2 rmind struct acpidisp_outdev *od; 914 1.9.2.2 rmind struct acpidisp_out_softc *osc, *last_osc; 915 1.9.2.2 rmind acpidisp_od_state_t state, last_state; 916 1.9.2.2 rmind acpidisp_od_status_t status; 917 1.9.2.2 rmind acpidisp_bios_policy_t lock_policy; 918 1.9.2.2 rmind uint32_t i; 919 1.9.2.2 rmind 920 1.9.2.2 rmind if (oi == NULL) 921 1.9.2.2 rmind return; 922 1.9.2.2 rmind 923 1.9.2.2 rmind /* Mutual exclusion with callbacks of connected output devices. */ 924 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 925 1.9.2.2 rmind 926 1.9.2.2 rmind /* Lock the _DGS values. */ 927 1.9.2.2 rmind lock_policy = asc->sc_policy; 928 1.9.2.2 rmind lock_policy.fmt.output = ACPI_DISP_POLICY_OUTPUT_LOCKED; 929 1.9.2.2 rmind (void)acpidisp_set_policy(asc, lock_policy.raw); 930 1.9.2.2 rmind 931 1.9.2.2 rmind last_osc = NULL; 932 1.9.2.2 rmind for (i = 0, od = oi->oi_dev; i < oi->oi_dev_count; i++, od++) { 933 1.9.2.2 rmind if (od->od_device == NULL) 934 1.9.2.2 rmind continue; 935 1.9.2.2 rmind osc = device_private(od->od_device); 936 1.9.2.2 rmind 937 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__DSS)) 938 1.9.2.2 rmind continue; 939 1.9.2.2 rmind if (acpidisp_get_state(osc, &state.raw)) 940 1.9.2.2 rmind continue; 941 1.9.2.2 rmind 942 1.9.2.2 rmind if (acpidisp_get_status(osc, &status.raw)) { 943 1.9.2.2 rmind state.fmt.no_switch = 0; 944 1.9.2.2 rmind } else { 945 1.9.2.2 rmind state.fmt.active &= status.fmt.ready; 946 1.9.2.2 rmind 947 1.9.2.2 rmind if (state.fmt.active == status.fmt.activated) 948 1.9.2.2 rmind state.fmt.no_switch = 1; 949 1.9.2.2 rmind else 950 1.9.2.2 rmind state.fmt.no_switch = 0; 951 1.9.2.2 rmind } 952 1.9.2.2 rmind 953 1.9.2.2 rmind state.fmt.commit = 0; 954 1.9.2.2 rmind 955 1.9.2.2 rmind if (last_osc != NULL) 956 1.9.2.2 rmind (void)acpidisp_set_state(last_osc, last_state.raw); 957 1.9.2.2 rmind 958 1.9.2.2 rmind last_osc = osc; 959 1.9.2.2 rmind last_state = state; 960 1.9.2.2 rmind } 961 1.9.2.2 rmind 962 1.9.2.2 rmind if (last_osc != NULL) { 963 1.9.2.2 rmind last_state.fmt.commit = 1; 964 1.9.2.2 rmind (void)acpidisp_set_state(last_osc, last_state.raw); 965 1.9.2.2 rmind } 966 1.9.2.2 rmind 967 1.9.2.2 rmind /* Restore the original BIOS policy. */ 968 1.9.2.2 rmind (void)acpidisp_set_policy(asc, asc->sc_policy.raw); 969 1.9.2.2 rmind 970 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 971 1.9.2.2 rmind } 972 1.9.2.2 rmind 973 1.9.2.2 rmind static void 974 1.9.2.2 rmind acpidisp_vga_output_device_change_callback(void *arg) 975 1.9.2.2 rmind { 976 1.9.2.2 rmind struct acpidisp_vga_softc *asc = arg; 977 1.9.2.2 rmind struct acpidisp_odinfo *oi = asc->sc_odinfo; 978 1.9.2.2 rmind bool switch_outputs; 979 1.9.2.2 rmind 980 1.9.2.2 rmind if (oi != NULL) { 981 1.9.2.2 rmind kmem_free(oi->oi_dev, 982 1.9.2.2 rmind oi->oi_dev_count * sizeof(*oi->oi_dev)); 983 1.9.2.2 rmind kmem_free(oi, sizeof(*oi)); 984 1.9.2.2 rmind } 985 1.9.2.2 rmind 986 1.9.2.2 rmind asc->sc_odinfo = acpidisp_init_odinfo(asc); 987 1.9.2.2 rmind if (asc->sc_odinfo != NULL) { 988 1.9.2.2 rmind acpidisp_vga_bind_outdevs(asc); 989 1.9.2.2 rmind acpidisp_print_odinfo(asc->sc_dev, asc->sc_odinfo); 990 1.9.2.2 rmind } 991 1.9.2.2 rmind 992 1.9.2.2 rmind /* Perform display output switch if needed. */ 993 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 994 1.9.2.2 rmind switch_outputs = 995 1.9.2.2 rmind (asc->sc_policy.fmt.output == ACPI_DISP_POLICY_OUTPUT_NORMAL); 996 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 997 1.9.2.2 rmind if (switch_outputs) 998 1.9.2.2 rmind acpidisp_vga_cycle_output_device_callback(arg); 999 1.9.2.2 rmind } 1000 1.9.2.2 rmind 1001 1.9.2.2 rmind static void 1002 1.9.2.2 rmind acpidisp_out_increase_brightness_callback(void *arg) 1003 1.9.2.2 rmind { 1004 1.9.2.2 rmind struct acpidisp_out_softc *osc = arg; 1005 1.9.2.2 rmind struct acpidisp_brctl *bc = osc->sc_brctl; 1006 1.9.2.2 rmind uint8_t lo, up; 1007 1.9.2.2 rmind 1008 1.9.2.2 rmind if (bc == NULL) { 1009 1.9.2.2 rmind /* Fallback to pmf(9). */ 1010 1.9.2.2 rmind pmf_event_inject(NULL, PMFE_DISPLAY_BRIGHTNESS_UP); 1011 1.9.2.2 rmind return; 1012 1.9.2.2 rmind } 1013 1.9.2.2 rmind 1014 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1015 1.9.2.2 rmind 1016 1.9.2.2 rmind (void)acpidisp_get_brightness(osc, &bc->bc_current); 1017 1.9.2.2 rmind 1018 1.9.2.2 rmind acpidisp_array_search(bc->bc_level, bc->bc_level_count, 1019 1.9.2.2 rmind bc->bc_current + ACPI_DISP_BRCTL_STEP, &lo, &up); 1020 1.9.2.2 rmind 1021 1.9.2.2 rmind bc->bc_current = up; 1022 1.9.2.2 rmind (void)acpidisp_set_brightness(osc, bc->bc_current); 1023 1.9.2.2 rmind 1024 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1025 1.9.2.2 rmind } 1026 1.9.2.2 rmind 1027 1.9.2.2 rmind static void 1028 1.9.2.2 rmind acpidisp_out_decrease_brightness_callback(void *arg) 1029 1.9.2.2 rmind { 1030 1.9.2.2 rmind struct acpidisp_out_softc *osc = arg; 1031 1.9.2.2 rmind struct acpidisp_brctl *bc = osc->sc_brctl; 1032 1.9.2.2 rmind uint8_t lo, up; 1033 1.9.2.2 rmind 1034 1.9.2.2 rmind if (bc == NULL) { 1035 1.9.2.2 rmind /* Fallback to pmf(9). */ 1036 1.9.2.2 rmind pmf_event_inject(NULL, PMFE_DISPLAY_BRIGHTNESS_DOWN); 1037 1.9.2.2 rmind return; 1038 1.9.2.2 rmind } 1039 1.9.2.2 rmind 1040 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1041 1.9.2.2 rmind 1042 1.9.2.2 rmind (void)acpidisp_get_brightness(osc, &bc->bc_current); 1043 1.9.2.2 rmind 1044 1.9.2.2 rmind acpidisp_array_search(bc->bc_level, bc->bc_level_count, 1045 1.9.2.2 rmind bc->bc_current - ACPI_DISP_BRCTL_STEP, &lo, &up); 1046 1.9.2.2 rmind 1047 1.9.2.2 rmind bc->bc_current = lo; 1048 1.9.2.2 rmind (void)acpidisp_set_brightness(osc, bc->bc_current); 1049 1.9.2.2 rmind 1050 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1051 1.9.2.2 rmind } 1052 1.9.2.2 rmind 1053 1.9.2.2 rmind static void 1054 1.9.2.2 rmind acpidisp_out_cycle_brightness_callback(void *arg) 1055 1.9.2.2 rmind { 1056 1.9.2.2 rmind struct acpidisp_out_softc *osc = arg; 1057 1.9.2.2 rmind struct acpidisp_brctl *bc = osc->sc_brctl; 1058 1.9.2.2 rmind uint8_t lo, up; 1059 1.9.2.2 rmind 1060 1.9.2.2 rmind if (bc == NULL) { 1061 1.9.2.2 rmind /* No fallback. */ 1062 1.9.2.2 rmind return; 1063 1.9.2.2 rmind } 1064 1.9.2.2 rmind 1065 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1066 1.9.2.2 rmind 1067 1.9.2.2 rmind (void)acpidisp_get_brightness(osc, &bc->bc_current); 1068 1.9.2.2 rmind 1069 1.9.2.2 rmind if (bc->bc_current >= bc->bc_level[bc->bc_level_count - 1]) { 1070 1.9.2.2 rmind bc->bc_current = bc->bc_level[0]; 1071 1.9.2.2 rmind } else { 1072 1.9.2.2 rmind acpidisp_array_search(bc->bc_level, bc->bc_level_count, 1073 1.9.2.2 rmind bc->bc_current + 1, &lo, &up); 1074 1.9.2.2 rmind bc->bc_current = up; 1075 1.9.2.2 rmind } 1076 1.9.2.2 rmind 1077 1.9.2.2 rmind (void)acpidisp_set_brightness(osc, bc->bc_current); 1078 1.9.2.2 rmind 1079 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1080 1.9.2.2 rmind } 1081 1.9.2.2 rmind 1082 1.9.2.2 rmind static void 1083 1.9.2.2 rmind acpidisp_out_zero_brightness_callback(void *arg) 1084 1.9.2.2 rmind { 1085 1.9.2.2 rmind struct acpidisp_out_softc *osc = arg; 1086 1.9.2.2 rmind struct acpidisp_brctl *bc = osc->sc_brctl; 1087 1.9.2.2 rmind 1088 1.9.2.2 rmind if (bc == NULL) { 1089 1.9.2.2 rmind /* Fallback to pmf(9). */ 1090 1.9.2.2 rmind /* XXX Is this the intended meaning of PMFE_DISPLAY_REDUCED? */ 1091 1.9.2.2 rmind pmf_event_inject(NULL, PMFE_DISPLAY_REDUCED); 1092 1.9.2.2 rmind return; 1093 1.9.2.2 rmind } 1094 1.9.2.2 rmind 1095 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1096 1.9.2.2 rmind 1097 1.9.2.2 rmind bc->bc_current = bc->bc_level[0]; 1098 1.9.2.2 rmind (void)acpidisp_set_brightness(osc, bc->bc_current); 1099 1.9.2.2 rmind 1100 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1101 1.9.2.2 rmind } 1102 1.9.2.2 rmind 1103 1.9.2.2 rmind /* 1104 1.9.2.2 rmind * Sysctl setup. 1105 1.9.2.2 rmind */ 1106 1.9.2.2 rmind 1107 1.9.2.2 rmind static void 1108 1.9.2.2 rmind acpidisp_vga_sysctl_setup(struct acpidisp_vga_softc *asc) 1109 1.9.2.2 rmind { 1110 1.9.2.2 rmind const struct sysctlnode *rnode; 1111 1.9.2.2 rmind 1112 1.9.2.2 rmind if (asc->sc_caps & ACPI_DISP_VGA_CAP__DOS) { 1113 1.9.2.2 rmind if ((sysctl_createv(&asc->sc_log, 0, NULL, &rnode, 1114 1.9.2.2 rmind 0, CTLTYPE_NODE, "hw", NULL, 1115 1.9.2.2 rmind NULL, 0, NULL, 0, 1116 1.9.2.2 rmind CTL_HW, CTL_EOL)) != 0) 1117 1.9.2.2 rmind goto fail; 1118 1.9.2.2 rmind 1119 1.9.2.2 rmind if ((sysctl_createv(&asc->sc_log, 0, &rnode, &rnode, 1120 1.9.2.2 rmind 0, CTLTYPE_NODE, "acpi", NULL, 1121 1.9.2.2 rmind NULL, 0, NULL, 0, 1122 1.9.2.2 rmind CTL_CREATE, CTL_EOL)) != 0) 1123 1.9.2.2 rmind goto fail; 1124 1.9.2.2 rmind 1125 1.9.2.2 rmind if ((sysctl_createv(&asc->sc_log, 0, &rnode, &rnode, 1126 1.9.2.2 rmind 0, CTLTYPE_NODE, device_xname(asc->sc_dev), 1127 1.9.2.2 rmind SYSCTL_DESCR("ACPI display adapter controls"), 1128 1.9.2.2 rmind NULL, 0, NULL, 0, 1129 1.9.2.2 rmind CTL_CREATE, CTL_EOL)) != 0) 1130 1.9.2.2 rmind goto fail; 1131 1.9.2.2 rmind 1132 1.9.2.2 rmind #ifdef ACPI_DEBUG 1133 1.9.2.2 rmind (void)sysctl_createv(&asc->sc_log, 0, &rnode, NULL, 1134 1.9.2.2 rmind CTLFLAG_READWRITE | CTLFLAG_HEX, CTLTYPE_INT, "bios_policy", 1135 1.9.2.2 rmind SYSCTL_DESCR("Current BIOS switch policies (debug)"), 1136 1.9.2.2 rmind acpidisp_vga_sysctl_policy, 0, asc, 0, 1137 1.9.2.2 rmind CTL_CREATE, CTL_EOL); 1138 1.9.2.2 rmind #endif 1139 1.9.2.2 rmind 1140 1.9.2.2 rmind (void)sysctl_createv(&asc->sc_log, 0, &rnode, NULL, 1141 1.9.2.2 rmind CTLFLAG_READWRITE, CTLTYPE_BOOL, "bios_switch", 1142 1.9.2.2 rmind SYSCTL_DESCR("Current BIOS output switching policy"), 1143 1.9.2.2 rmind acpidisp_vga_sysctl_policy_output, 0, asc, 0, 1144 1.9.2.2 rmind CTL_CREATE, CTL_EOL); 1145 1.9.2.2 rmind } 1146 1.9.2.2 rmind 1147 1.9.2.2 rmind return; 1148 1.9.2.2 rmind 1149 1.9.2.2 rmind fail: 1150 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, "couldn't add sysctl nodes\n"); 1151 1.9.2.2 rmind } 1152 1.9.2.2 rmind 1153 1.9.2.2 rmind static void 1154 1.9.2.2 rmind acpidisp_out_sysctl_setup(struct acpidisp_out_softc *osc) 1155 1.9.2.2 rmind { 1156 1.9.2.2 rmind const struct sysctlnode *rnode; 1157 1.9.2.2 rmind 1158 1.9.2.2 rmind #ifdef ACPI_DISP_SWITCH_SYSCTLS 1159 1.9.2.2 rmind if ((osc->sc_brctl != NULL) || 1160 1.9.2.2 rmind (osc->sc_caps & ACPI_DISP_OUT_CAP__DCS) || 1161 1.9.2.2 rmind (osc->sc_caps & ACPI_DISP_OUT_CAP__DGS)) { 1162 1.9.2.2 rmind #else 1163 1.9.2.2 rmind if (osc->sc_brctl != NULL) { 1164 1.9.2.2 rmind #endif 1165 1.9.2.2 rmind if ((sysctl_createv(&osc->sc_log, 0, NULL, &rnode, 1166 1.9.2.2 rmind 0, CTLTYPE_NODE, "hw", NULL, 1167 1.9.2.2 rmind NULL, 0, NULL, 0, 1168 1.9.2.2 rmind CTL_HW, CTL_EOL)) != 0) 1169 1.9.2.2 rmind goto fail; 1170 1.9.2.2 rmind 1171 1.9.2.2 rmind if ((sysctl_createv(&osc->sc_log, 0, &rnode, &rnode, 1172 1.9.2.2 rmind 0, CTLTYPE_NODE, "acpi", NULL, 1173 1.9.2.2 rmind NULL, 0, NULL, 0, 1174 1.9.2.2 rmind CTL_CREATE, CTL_EOL)) != 0) 1175 1.9.2.2 rmind goto fail; 1176 1.9.2.2 rmind 1177 1.9.2.2 rmind if ((sysctl_createv(&osc->sc_log, 0, &rnode, &rnode, 1178 1.9.2.2 rmind 0, CTLTYPE_NODE, device_xname(osc->sc_dev), 1179 1.9.2.2 rmind SYSCTL_DESCR("ACPI display output device controls"), 1180 1.9.2.2 rmind NULL, 0, NULL, 0, 1181 1.9.2.2 rmind CTL_CREATE, CTL_EOL)) != 0) 1182 1.9.2.2 rmind goto fail; 1183 1.9.2.2 rmind } 1184 1.9.2.2 rmind 1185 1.9.2.2 rmind if (osc->sc_brctl != NULL) { 1186 1.9.2.2 rmind (void)sysctl_createv(&osc->sc_log, 0, &rnode, NULL, 1187 1.9.2.2 rmind CTLFLAG_READWRITE, CTLTYPE_INT, "brightness", 1188 1.9.2.2 rmind SYSCTL_DESCR("Current brightness level"), 1189 1.9.2.2 rmind acpidisp_out_sysctl_brightness, 0, osc, 0, 1190 1.9.2.2 rmind CTL_CREATE, CTL_EOL); 1191 1.9.2.2 rmind } 1192 1.9.2.2 rmind 1193 1.9.2.2 rmind #ifdef ACPI_DISP_SWITCH_SYSCTLS 1194 1.9.2.2 rmind if (osc->sc_caps & ACPI_DISP_OUT_CAP__DCS) { 1195 1.9.2.2 rmind (void)sysctl_createv(&osc->sc_log, 0, &rnode, NULL, 1196 1.9.2.2 rmind CTLFLAG_READONLY | CTLFLAG_HEX, CTLTYPE_INT, "status", 1197 1.9.2.2 rmind SYSCTL_DESCR("Current status"), 1198 1.9.2.2 rmind acpidisp_out_sysctl_status, 0, osc, 0, 1199 1.9.2.2 rmind CTL_CREATE, CTL_EOL); 1200 1.9.2.2 rmind } 1201 1.9.2.2 rmind 1202 1.9.2.2 rmind if (osc->sc_caps & ACPI_DISP_OUT_CAP__DGS) { 1203 1.9.2.2 rmind int access; 1204 1.9.2.2 rmind 1205 1.9.2.2 rmind if (osc->sc_caps & ACPI_DISP_OUT_CAP__DSS) 1206 1.9.2.2 rmind access = CTLFLAG_READWRITE; 1207 1.9.2.2 rmind else 1208 1.9.2.2 rmind access = CTLFLAG_READONLY; 1209 1.9.2.2 rmind 1210 1.9.2.2 rmind (void)sysctl_createv(&osc->sc_log, 0, &rnode, NULL, 1211 1.9.2.2 rmind access | CTLFLAG_HEX, CTLTYPE_INT, "state", 1212 1.9.2.2 rmind SYSCTL_DESCR("Next state (active or inactive)"), 1213 1.9.2.2 rmind acpidisp_out_sysctl_state, 0, osc, 0, 1214 1.9.2.2 rmind CTL_CREATE, CTL_EOL); 1215 1.9.2.2 rmind } 1216 1.9.2.2 rmind #endif 1217 1.9.2.2 rmind 1218 1.9.2.2 rmind return; 1219 1.9.2.2 rmind 1220 1.9.2.2 rmind fail: 1221 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "couldn't add sysctl nodes\n"); 1222 1.9.2.2 rmind } 1223 1.9.2.2 rmind 1224 1.9.2.2 rmind /* 1225 1.9.2.2 rmind * Sysctl callbacks. 1226 1.9.2.2 rmind */ 1227 1.9.2.2 rmind 1228 1.9.2.2 rmind #ifdef ACPI_DEBUG 1229 1.9.2.2 rmind static int 1230 1.9.2.2 rmind acpidisp_vga_sysctl_policy(SYSCTLFN_ARGS) 1231 1.9.2.2 rmind { 1232 1.9.2.2 rmind struct sysctlnode node; 1233 1.9.2.2 rmind struct acpidisp_vga_softc *asc; 1234 1.9.2.2 rmind uint32_t val; 1235 1.9.2.2 rmind int error; 1236 1.9.2.2 rmind 1237 1.9.2.2 rmind node = *rnode; 1238 1.9.2.2 rmind asc = node.sysctl_data; 1239 1.9.2.2 rmind 1240 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 1241 1.9.2.2 rmind val = (uint32_t)asc->sc_policy.raw; 1242 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 1243 1.9.2.2 rmind 1244 1.9.2.2 rmind node.sysctl_data = &val; 1245 1.9.2.2 rmind error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1246 1.9.2.2 rmind if (error || newp == NULL) 1247 1.9.2.2 rmind return error; 1248 1.9.2.2 rmind 1249 1.9.2.2 rmind if (val > 0x7) 1250 1.9.2.2 rmind return EINVAL; 1251 1.9.2.2 rmind 1252 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 1253 1.9.2.2 rmind asc->sc_policy.raw = (uint8_t)val; 1254 1.9.2.2 rmind error = acpidisp_set_policy(asc, asc->sc_policy.raw); 1255 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 1256 1.9.2.2 rmind 1257 1.9.2.2 rmind return error; 1258 1.9.2.2 rmind } 1259 1.9.2.2 rmind #endif 1260 1.9.2.2 rmind 1261 1.9.2.2 rmind static int 1262 1.9.2.2 rmind acpidisp_vga_sysctl_policy_output(SYSCTLFN_ARGS) 1263 1.9.2.2 rmind { 1264 1.9.2.2 rmind struct sysctlnode node; 1265 1.9.2.2 rmind struct acpidisp_vga_softc *asc; 1266 1.9.2.2 rmind bool val; 1267 1.9.2.2 rmind int error; 1268 1.9.2.2 rmind 1269 1.9.2.2 rmind node = *rnode; 1270 1.9.2.2 rmind asc = node.sysctl_data; 1271 1.9.2.2 rmind 1272 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 1273 1.9.2.2 rmind val = (asc->sc_policy.fmt.output == ACPI_DISP_POLICY_OUTPUT_AUTO); 1274 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 1275 1.9.2.2 rmind 1276 1.9.2.2 rmind node.sysctl_data = &val; 1277 1.9.2.2 rmind error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1278 1.9.2.2 rmind if (error || newp == NULL) 1279 1.9.2.2 rmind return error; 1280 1.9.2.2 rmind 1281 1.9.2.2 rmind mutex_enter(&asc->sc_mtx); 1282 1.9.2.2 rmind if (val) 1283 1.9.2.2 rmind asc->sc_policy.fmt.output = ACPI_DISP_POLICY_OUTPUT_AUTO; 1284 1.9.2.2 rmind else 1285 1.9.2.2 rmind asc->sc_policy.fmt.output = ACPI_DISP_POLICY_OUTPUT_NORMAL; 1286 1.9.2.2 rmind error = acpidisp_set_policy(asc, asc->sc_policy.raw); 1287 1.9.2.2 rmind mutex_exit(&asc->sc_mtx); 1288 1.9.2.2 rmind 1289 1.9.2.2 rmind return error; 1290 1.9.2.2 rmind } 1291 1.9.2.2 rmind 1292 1.9.2.2 rmind #ifdef ACPI_DISP_SWITCH_SYSCTLS 1293 1.9.2.2 rmind static int 1294 1.9.2.2 rmind acpidisp_out_sysctl_status(SYSCTLFN_ARGS) 1295 1.9.2.2 rmind { 1296 1.9.2.2 rmind struct sysctlnode node; 1297 1.9.2.2 rmind struct acpidisp_out_softc *osc; 1298 1.9.2.2 rmind uint32_t val; 1299 1.9.2.2 rmind int error; 1300 1.9.2.2 rmind 1301 1.9.2.2 rmind node = *rnode; 1302 1.9.2.2 rmind osc = node.sysctl_data; 1303 1.9.2.2 rmind 1304 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1305 1.9.2.2 rmind error = acpidisp_get_status(osc, &val); 1306 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1307 1.9.2.2 rmind 1308 1.9.2.2 rmind if (error) 1309 1.9.2.2 rmind return error; 1310 1.9.2.2 rmind 1311 1.9.2.2 rmind node.sysctl_data = &val; 1312 1.9.2.2 rmind error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1313 1.9.2.2 rmind if (error || newp == NULL) 1314 1.9.2.2 rmind return error; 1315 1.9.2.2 rmind 1316 1.9.2.2 rmind return 0; 1317 1.9.2.2 rmind } 1318 1.9.2.2 rmind 1319 1.9.2.2 rmind static int 1320 1.9.2.2 rmind acpidisp_out_sysctl_state(SYSCTLFN_ARGS) 1321 1.9.2.2 rmind { 1322 1.9.2.2 rmind struct sysctlnode node; 1323 1.9.2.2 rmind struct acpidisp_out_softc *osc; 1324 1.9.2.2 rmind uint32_t val; 1325 1.9.2.2 rmind int error; 1326 1.9.2.2 rmind 1327 1.9.2.2 rmind node = *rnode; 1328 1.9.2.2 rmind osc = node.sysctl_data; 1329 1.9.2.2 rmind 1330 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1331 1.9.2.2 rmind error = acpidisp_get_state(osc, &val); 1332 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1333 1.9.2.2 rmind 1334 1.9.2.2 rmind if (error) 1335 1.9.2.2 rmind return error; 1336 1.9.2.2 rmind 1337 1.9.2.2 rmind node.sysctl_data = &val; 1338 1.9.2.2 rmind error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1339 1.9.2.2 rmind if (error || newp == NULL) 1340 1.9.2.2 rmind return error; 1341 1.9.2.2 rmind 1342 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1343 1.9.2.2 rmind error = acpidisp_set_state(osc, val); 1344 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1345 1.9.2.2 rmind 1346 1.9.2.2 rmind return error; 1347 1.9.2.2 rmind } 1348 1.9.2.2 rmind #endif 1349 1.9.2.2 rmind 1350 1.9.2.2 rmind static int 1351 1.9.2.2 rmind acpidisp_out_sysctl_brightness(SYSCTLFN_ARGS) 1352 1.9.2.2 rmind { 1353 1.9.2.2 rmind struct sysctlnode node; 1354 1.9.2.2 rmind struct acpidisp_out_softc *osc; 1355 1.9.2.2 rmind struct acpidisp_brctl *bc; 1356 1.9.2.2 rmind int val, error; 1357 1.9.2.2 rmind uint8_t lo, up, level; 1358 1.9.2.2 rmind 1359 1.9.2.2 rmind node = *rnode; 1360 1.9.2.2 rmind osc = node.sysctl_data; 1361 1.9.2.2 rmind bc = osc->sc_brctl; 1362 1.9.2.2 rmind 1363 1.9.2.2 rmind KASSERT(bc != NULL); 1364 1.9.2.2 rmind 1365 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1366 1.9.2.2 rmind (void)acpidisp_get_brightness(osc, &bc->bc_current); 1367 1.9.2.2 rmind val = (int)bc->bc_current; 1368 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1369 1.9.2.2 rmind 1370 1.9.2.2 rmind node.sysctl_data = &val; 1371 1.9.2.2 rmind error = sysctl_lookup(SYSCTLFN_CALL(&node)); 1372 1.9.2.2 rmind if (error || newp == NULL) 1373 1.9.2.2 rmind return error; 1374 1.9.2.2 rmind 1375 1.9.2.2 rmind acpidisp_array_search(bc->bc_level, bc->bc_level_count, val, &lo, &up); 1376 1.9.2.2 rmind if ((lo != up) && (val - lo) < (up - val)) 1377 1.9.2.2 rmind level = lo; 1378 1.9.2.2 rmind else 1379 1.9.2.2 rmind level = up; 1380 1.9.2.2 rmind 1381 1.9.2.2 rmind mutex_enter(osc->sc_mtx); 1382 1.9.2.2 rmind bc->bc_current = level; 1383 1.9.2.2 rmind error = acpidisp_set_brightness(osc, bc->bc_current); 1384 1.9.2.2 rmind mutex_exit(osc->sc_mtx); 1385 1.9.2.2 rmind 1386 1.9.2.2 rmind return error; 1387 1.9.2.2 rmind } 1388 1.9.2.2 rmind 1389 1.9.2.2 rmind /* 1390 1.9.2.2 rmind * Initialization of acpidisp_odinfo (_DOD) and acpidisp_brctl (_BCL). 1391 1.9.2.2 rmind */ 1392 1.9.2.2 rmind 1393 1.9.2.2 rmind /* 1394 1.9.2.2 rmind * Regarding _DOD (ACPI 4.0a, Sec. B.4.2): 1395 1.9.2.2 rmind * 1396 1.9.2.2 rmind * "The _DOD method returns a list of devices attached to the graphics adapter, 1397 1.9.2.2 rmind * along with device-specific configuration information." 1398 1.9.2.2 rmind * 1399 1.9.2.2 rmind * "Every child device enumerated in the ACPI namespace under the graphics 1400 1.9.2.2 rmind * adapter must be specified in this list of devices. Each display device 1401 1.9.2.2 rmind * must have its own ID, which is unique with respect to any other attachable 1402 1.9.2.2 rmind * devices enumerated." 1403 1.9.2.2 rmind * 1404 1.9.2.2 rmind * "Return value: a package containing a variable-length list of integers, 1405 1.9.2.2 rmind * each of which contains the 32-bit device attribute of a child device." 1406 1.9.2.2 rmind */ 1407 1.9.2.2 rmind 1408 1.9.2.2 rmind static struct acpidisp_odinfo * 1409 1.9.2.2 rmind acpidisp_init_odinfo(const struct acpidisp_vga_softc *asc) 1410 1.9.2.2 rmind { 1411 1.9.2.2 rmind ACPI_HANDLE hdl = asc->sc_node->ad_handle; 1412 1.9.2.2 rmind ACPI_STATUS rv; 1413 1.9.2.2 rmind ACPI_OBJECT *pkg; 1414 1.9.2.2 rmind struct acpidisp_odinfo *oi; 1415 1.9.2.2 rmind struct acpidisp_outdev *devp; 1416 1.9.2.2 rmind uint32_t count, i; 1417 1.9.2.2 rmind 1418 1.9.2.2 rmind if (!(asc->sc_caps & ACPI_DISP_VGA_CAP__DOD)) 1419 1.9.2.2 rmind return NULL; 1420 1.9.2.2 rmind 1421 1.9.2.2 rmind oi = NULL; 1422 1.9.2.2 rmind pkg = NULL; 1423 1.9.2.2 rmind 1424 1.9.2.2 rmind rv = acpidisp_eval_package(hdl, "_DOD", &pkg, 1); 1425 1.9.2.2 rmind if (ACPI_FAILURE(rv)) 1426 1.9.2.2 rmind goto fail; 1427 1.9.2.2 rmind 1428 1.9.2.2 rmind /* 1429 1.9.2.2 rmind * Allocate and fill the struct acpidisp_odinfo to be returned. 1430 1.9.2.2 rmind */ 1431 1.9.2.2 rmind oi = kmem_zalloc(sizeof(*oi), KM_SLEEP); 1432 1.9.2.2 rmind if (oi == NULL) { 1433 1.9.2.2 rmind rv = AE_NO_MEMORY; 1434 1.9.2.2 rmind goto fail; 1435 1.9.2.2 rmind } 1436 1.9.2.2 rmind 1437 1.9.2.2 rmind oi->oi_dev_count = pkg->Package.Count; 1438 1.9.2.2 rmind 1439 1.9.2.2 rmind oi->oi_dev = kmem_zalloc(oi->oi_dev_count * sizeof(*oi->oi_dev), 1440 1.9.2.2 rmind KM_SLEEP); 1441 1.9.2.2 rmind if (oi->oi_dev == NULL) { 1442 1.9.2.2 rmind rv = AE_NO_MEMORY; 1443 1.9.2.2 rmind goto fail; 1444 1.9.2.2 rmind } 1445 1.9.2.2 rmind 1446 1.9.2.2 rmind /* 1447 1.9.2.2 rmind * Fill the array oi->oi_dev. 1448 1.9.2.2 rmind */ 1449 1.9.2.2 rmind for (count = 0, i = 0; i < pkg->Package.Count; i++) { 1450 1.9.2.2 rmind /* List of 32-bit integers (ACPI 4.0a, Sec. B.4.2). */ 1451 1.9.2.2 rmind if (pkg->Package.Elements[i].Type != ACPI_TYPE_INTEGER || 1452 1.9.2.2 rmind pkg->Package.Elements[i].Integer.Value > UINT32_MAX) 1453 1.9.2.2 rmind continue; 1454 1.9.2.2 rmind 1455 1.9.2.2 rmind oi->oi_dev[count].od_attrs.raw = 1456 1.9.2.2 rmind (uint32_t)pkg->Package.Elements[i].Integer.Value; 1457 1.9.2.2 rmind count++; 1458 1.9.2.2 rmind } 1459 1.9.2.2 rmind 1460 1.9.2.2 rmind if (count == 0) { 1461 1.9.2.2 rmind rv = AE_BAD_DATA; 1462 1.9.2.2 rmind goto fail; 1463 1.9.2.2 rmind } 1464 1.9.2.2 rmind 1465 1.9.2.2 rmind ACPI_FREE(pkg); 1466 1.9.2.2 rmind pkg = NULL; 1467 1.9.2.2 rmind 1468 1.9.2.2 rmind /* 1469 1.9.2.2 rmind * Resize the array oi->oi_dev if needed. 1470 1.9.2.2 rmind */ 1471 1.9.2.2 rmind if (count < oi->oi_dev_count) { 1472 1.9.2.2 rmind devp = kmem_alloc(count * sizeof(*devp), KM_SLEEP); 1473 1.9.2.2 rmind if (devp == NULL) { 1474 1.9.2.2 rmind rv = AE_NO_MEMORY; 1475 1.9.2.2 rmind goto fail; 1476 1.9.2.2 rmind } 1477 1.9.2.2 rmind 1478 1.9.2.2 rmind (void)memcpy(devp, oi->oi_dev, count * sizeof(*devp)); 1479 1.9.2.2 rmind kmem_free(oi->oi_dev, oi->oi_dev_count * sizeof(*oi->oi_dev)); 1480 1.9.2.2 rmind 1481 1.9.2.2 rmind oi->oi_dev = devp; 1482 1.9.2.2 rmind oi->oi_dev_count = count; 1483 1.9.2.2 rmind } 1484 1.9.2.2 rmind 1485 1.9.2.2 rmind return oi; 1486 1.9.2.2 rmind 1487 1.9.2.2 rmind fail: 1488 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, "failed to evaluate %s.%s: %s\n", 1489 1.9.2.2 rmind acpi_name(hdl), "_DOD", AcpiFormatException(rv)); 1490 1.9.2.2 rmind if (pkg != NULL) 1491 1.9.2.2 rmind ACPI_FREE(pkg); 1492 1.9.2.2 rmind if (oi != NULL) { 1493 1.9.2.2 rmind if (oi->oi_dev != NULL) 1494 1.9.2.2 rmind kmem_free(oi->oi_dev, 1495 1.9.2.2 rmind oi->oi_dev_count * sizeof(*oi->oi_dev)); 1496 1.9.2.2 rmind kmem_free(oi, sizeof(*oi)); 1497 1.9.2.2 rmind } 1498 1.9.2.2 rmind return NULL; 1499 1.9.2.2 rmind } 1500 1.9.2.2 rmind 1501 1.9.2.2 rmind /* 1502 1.9.2.2 rmind * acpidisp_vga_bind_outdevs: 1503 1.9.2.2 rmind * 1504 1.9.2.2 rmind * Bind each acpiout device attached under an acpivga device to the 1505 1.9.2.2 rmind * corresponding (_DOD enumerated) connected output device. 1506 1.9.2.2 rmind */ 1507 1.9.2.2 rmind static void 1508 1.9.2.2 rmind acpidisp_vga_bind_outdevs(struct acpidisp_vga_softc *asc) 1509 1.9.2.2 rmind { 1510 1.9.2.2 rmind struct acpidisp_odinfo *oi = asc->sc_odinfo; 1511 1.9.2.2 rmind struct acpidisp_out_softc *osc; 1512 1.9.2.2 rmind struct acpidisp_outdev *od; 1513 1.9.2.2 rmind struct acpi_devnode *ad; 1514 1.9.2.2 rmind ACPI_HANDLE hdl; 1515 1.9.2.2 rmind ACPI_INTEGER val; 1516 1.9.2.2 rmind ACPI_STATUS rv; 1517 1.9.2.2 rmind uint16_t devid; 1518 1.9.2.2 rmind uint32_t i; 1519 1.9.2.2 rmind 1520 1.9.2.2 rmind KASSERT(oi != NULL); 1521 1.9.2.2 rmind 1522 1.9.2.2 rmind /* Reset all bindings. */ 1523 1.9.2.2 rmind for (i = 0, od = oi->oi_dev; i < oi->oi_dev_count; i++, od++) 1524 1.9.2.2 rmind od->od_device = NULL; 1525 1.9.2.2 rmind 1526 1.9.2.2 rmind /* 1527 1.9.2.2 rmind * Iterate over all ACPI children that have been attached under this 1528 1.9.2.2 rmind * acpivga device (as acpiout devices). 1529 1.9.2.2 rmind */ 1530 1.9.2.2 rmind SIMPLEQ_FOREACH(ad, &asc->sc_node->ad_child_head, ad_child_list) { 1531 1.9.2.2 rmind if ((ad->ad_device == NULL) || 1532 1.9.2.2 rmind (device_parent(ad->ad_device) != asc->sc_dev)) 1533 1.9.2.2 rmind continue; 1534 1.9.2.2 rmind 1535 1.9.2.2 rmind KASSERT(device_is_a(ad->ad_device, "acpiout")); 1536 1.9.2.2 rmind 1537 1.9.2.2 rmind osc = device_private(ad->ad_device); 1538 1.9.2.2 rmind 1539 1.9.2.2 rmind /* 1540 1.9.2.2 rmind * For display output devices, the method _ADR returns 1541 1.9.2.2 rmind * the device's ID (ACPI 4.0a, Sec. B.6.1). We do not 1542 1.9.2.2 rmind * cache the result of _ADR since it may vary. 1543 1.9.2.2 rmind */ 1544 1.9.2.2 rmind hdl = osc->sc_node->ad_handle; 1545 1.9.2.2 rmind rv = acpi_eval_integer(hdl, "_ADR", &val); 1546 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1547 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, 1548 1.9.2.2 rmind "failed to evaluate %s.%s: %s\n", 1549 1.9.2.2 rmind acpi_name(hdl), "_ADR", AcpiFormatException(rv)); 1550 1.9.2.2 rmind continue; 1551 1.9.2.2 rmind } 1552 1.9.2.2 rmind 1553 1.9.2.2 rmind /* The device ID is a 16-bit integer (ACPI 4.0a, Table B-2). */ 1554 1.9.2.2 rmind devid = (uint16_t)val; 1555 1.9.2.2 rmind 1556 1.9.2.2 rmind /* 1557 1.9.2.2 rmind * The device ID must be unique (among output devices), and must 1558 1.9.2.2 rmind * appear in the list returned by _DOD (ACPI 4.0a, Sec. B.6.1). 1559 1.9.2.2 rmind */ 1560 1.9.2.2 rmind for (i = 0, od = oi->oi_dev; i < oi->oi_dev_count; i++, od++) { 1561 1.9.2.2 rmind if (devid == od->od_attrs.device_id) { 1562 1.9.2.2 rmind if (od->od_device != NULL) 1563 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, 1564 1.9.2.2 rmind "%s has same device ID as %s\n", 1565 1.9.2.2 rmind device_xname(osc->sc_dev), 1566 1.9.2.2 rmind device_xname(od->od_device)); 1567 1.9.2.2 rmind else 1568 1.9.2.2 rmind od->od_device = osc->sc_dev; 1569 1.9.2.2 rmind break; 1570 1.9.2.2 rmind } 1571 1.9.2.2 rmind } 1572 1.9.2.2 rmind if (i == oi->oi_dev_count) 1573 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, 1574 1.9.2.2 rmind "unknown output device %s\n", 1575 1.9.2.2 rmind device_xname(osc->sc_dev)); 1576 1.9.2.2 rmind } 1577 1.9.2.2 rmind } 1578 1.9.2.2 rmind 1579 1.9.2.2 rmind /* 1580 1.9.2.2 rmind * Regarding _BCL (ACPI 4.0a, Sec. B.6.2): 1581 1.9.2.2 rmind * 1582 1.9.2.2 rmind * "This method allows the OS to query a list of brightness levels supported by 1583 1.9.2.2 rmind * built-in display output devices." 1584 1.9.2.2 rmind * 1585 1.9.2.2 rmind * "Return value: a variable-length package containing a list of integers 1586 1.9.2.2 rmind * representing the supported brightness levels. Each integer has 8 bits of 1587 1.9.2.2 rmind * significant data." 1588 1.9.2.2 rmind */ 1589 1.9.2.2 rmind 1590 1.9.2.2 rmind static struct acpidisp_brctl * 1591 1.9.2.2 rmind acpidisp_init_brctl(const struct acpidisp_out_softc *osc) 1592 1.9.2.2 rmind { 1593 1.9.2.2 rmind ACPI_HANDLE hdl = osc->sc_node->ad_handle; 1594 1.9.2.2 rmind ACPI_STATUS rv; 1595 1.9.2.2 rmind ACPI_OBJECT *pkg; 1596 1.9.2.2 rmind struct acpidisp_brctl *bc; 1597 1.9.2.2 rmind uint8_t *levelp; 1598 1.9.2.2 rmind uint32_t i; 1599 1.9.2.2 rmind int32_t j; 1600 1.9.2.2 rmind uint16_t count, k; 1601 1.9.2.2 rmind uint8_t level; 1602 1.9.2.2 rmind 1603 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__BCL)) 1604 1.9.2.2 rmind return NULL; 1605 1.9.2.2 rmind 1606 1.9.2.2 rmind bc = NULL; 1607 1.9.2.2 rmind pkg = NULL; 1608 1.9.2.2 rmind 1609 1.9.2.2 rmind rv = acpidisp_eval_package(hdl, "_BCL", &pkg, 2); 1610 1.9.2.2 rmind if (ACPI_FAILURE(rv)) 1611 1.9.2.2 rmind goto fail; 1612 1.9.2.2 rmind 1613 1.9.2.2 rmind /* 1614 1.9.2.2 rmind * Allocate and fill the struct acpidisp_brctl to be returned. 1615 1.9.2.2 rmind */ 1616 1.9.2.2 rmind bc = kmem_zalloc(sizeof(*bc), KM_SLEEP); 1617 1.9.2.2 rmind if (bc == NULL) { 1618 1.9.2.2 rmind rv = AE_NO_MEMORY; 1619 1.9.2.2 rmind goto fail; 1620 1.9.2.2 rmind } 1621 1.9.2.2 rmind 1622 1.9.2.2 rmind /* At most 256 brightness levels (8-bit integers). */ 1623 1.9.2.2 rmind if (pkg->Package.Count > 256) 1624 1.9.2.2 rmind bc->bc_level_count = 256; 1625 1.9.2.2 rmind else 1626 1.9.2.2 rmind bc->bc_level_count = (uint16_t)pkg->Package.Count; 1627 1.9.2.2 rmind 1628 1.9.2.2 rmind bc->bc_level = kmem_zalloc(bc->bc_level_count * sizeof(*bc->bc_level), 1629 1.9.2.2 rmind KM_SLEEP); 1630 1.9.2.2 rmind if (bc->bc_level == NULL) { 1631 1.9.2.2 rmind rv = AE_NO_MEMORY; 1632 1.9.2.2 rmind goto fail; 1633 1.9.2.2 rmind } 1634 1.9.2.2 rmind 1635 1.9.2.2 rmind /* 1636 1.9.2.2 rmind * Fill the array bc->bc_level with an insertion sort. 1637 1.9.2.2 rmind */ 1638 1.9.2.2 rmind for (count = 0, i = 0; i < pkg->Package.Count; i++) { 1639 1.9.2.2 rmind /* List of 8-bit integers (ACPI 4.0a, Sec. B.6.2). */ 1640 1.9.2.2 rmind if (pkg->Package.Elements[i].Type != ACPI_TYPE_INTEGER || 1641 1.9.2.2 rmind pkg->Package.Elements[i].Integer.Value > UINT8_MAX) 1642 1.9.2.2 rmind continue; 1643 1.9.2.2 rmind 1644 1.9.2.2 rmind level = (uint8_t)pkg->Package.Elements[i].Integer.Value; 1645 1.9.2.2 rmind 1646 1.9.2.2 rmind /* Find the correct slot but do not modify the array yet. */ 1647 1.9.2.2 rmind for (j = count; --j >= 0 && bc->bc_level[j] > level; ); 1648 1.9.2.2 rmind if (j >= 0 && bc->bc_level[j] == level) 1649 1.9.2.2 rmind continue; 1650 1.9.2.2 rmind j++; 1651 1.9.2.2 rmind 1652 1.9.2.2 rmind /* Make room for the new level. */ 1653 1.9.2.2 rmind for (k = count; k > j; k--) 1654 1.9.2.2 rmind bc->bc_level[k] = bc->bc_level[k-1]; 1655 1.9.2.2 rmind 1656 1.9.2.2 rmind /* Insert the new level. */ 1657 1.9.2.2 rmind bc->bc_level[j] = level; 1658 1.9.2.2 rmind count++; 1659 1.9.2.2 rmind } 1660 1.9.2.2 rmind 1661 1.9.2.2 rmind if (count == 0) { 1662 1.9.2.2 rmind rv = AE_BAD_DATA; 1663 1.9.2.2 rmind goto fail; 1664 1.9.2.2 rmind } 1665 1.9.2.2 rmind 1666 1.9.2.2 rmind ACPI_FREE(pkg); 1667 1.9.2.2 rmind pkg = NULL; 1668 1.9.2.2 rmind 1669 1.9.2.2 rmind /* 1670 1.9.2.2 rmind * Resize the array bc->bc_level if needed. 1671 1.9.2.2 rmind */ 1672 1.9.2.2 rmind if (count < bc->bc_level_count) { 1673 1.9.2.2 rmind levelp = kmem_alloc(count * sizeof(*levelp), KM_SLEEP); 1674 1.9.2.2 rmind if (levelp == NULL) { 1675 1.9.2.2 rmind rv = AE_NO_MEMORY; 1676 1.9.2.2 rmind goto fail; 1677 1.9.2.2 rmind } 1678 1.9.2.2 rmind 1679 1.9.2.2 rmind (void)memcpy(levelp, bc->bc_level, count * sizeof(*levelp)); 1680 1.9.2.2 rmind kmem_free(bc->bc_level, 1681 1.9.2.2 rmind bc->bc_level_count * sizeof(*bc->bc_level)); 1682 1.9.2.2 rmind 1683 1.9.2.2 rmind bc->bc_level = levelp; 1684 1.9.2.2 rmind bc->bc_level_count = count; 1685 1.9.2.2 rmind } 1686 1.9.2.2 rmind 1687 1.9.2.2 rmind return bc; 1688 1.9.2.2 rmind 1689 1.9.2.2 rmind fail: 1690 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "failed to evaluate %s.%s: %s\n", 1691 1.9.2.2 rmind acpi_name(hdl), "_BCL", AcpiFormatException(rv)); 1692 1.9.2.2 rmind if (pkg != NULL) 1693 1.9.2.2 rmind ACPI_FREE(pkg); 1694 1.9.2.2 rmind if (bc != NULL) { 1695 1.9.2.2 rmind if (bc->bc_level != NULL) 1696 1.9.2.2 rmind kmem_free(bc->bc_level, 1697 1.9.2.2 rmind bc->bc_level_count * sizeof(*bc->bc_level)); 1698 1.9.2.2 rmind kmem_free(bc, sizeof(*bc)); 1699 1.9.2.2 rmind } 1700 1.9.2.2 rmind return NULL; 1701 1.9.2.2 rmind } 1702 1.9.2.2 rmind 1703 1.9.2.2 rmind /* 1704 1.9.2.2 rmind * Evaluation of simple ACPI display methods. 1705 1.9.2.2 rmind */ 1706 1.9.2.2 rmind 1707 1.9.2.2 rmind static int 1708 1.9.2.2 rmind acpidisp_set_policy(const struct acpidisp_vga_softc *asc, uint8_t value) 1709 1.9.2.2 rmind { 1710 1.9.2.2 rmind ACPI_HANDLE hdl = asc->sc_node->ad_handle; 1711 1.9.2.2 rmind ACPI_INTEGER val; 1712 1.9.2.2 rmind ACPI_STATUS rv; 1713 1.9.2.2 rmind 1714 1.9.2.2 rmind ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: set %s: 0x%"PRIx8"\n", 1715 1.9.2.2 rmind device_xname(asc->sc_dev), "policy", value)); 1716 1.9.2.2 rmind 1717 1.9.2.2 rmind if (!(asc->sc_caps & ACPI_DISP_VGA_CAP__DOS)) 1718 1.9.2.2 rmind return ENODEV; 1719 1.9.2.2 rmind 1720 1.9.2.2 rmind val = (ACPI_INTEGER)value; 1721 1.9.2.2 rmind rv = acpi_eval_set_integer(hdl, "_DOS", val); 1722 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1723 1.9.2.2 rmind aprint_error_dev(asc->sc_dev, "failed to evaluate %s.%s: %s\n", 1724 1.9.2.2 rmind acpi_name(hdl), "_DOS", AcpiFormatException(rv)); 1725 1.9.2.2 rmind return EIO; 1726 1.9.2.2 rmind } 1727 1.9.2.2 rmind 1728 1.9.2.2 rmind return 0; 1729 1.9.2.2 rmind } 1730 1.9.2.2 rmind 1731 1.9.2.2 rmind static int 1732 1.9.2.2 rmind acpidisp_get_status(const struct acpidisp_out_softc *osc, uint32_t *valuep) 1733 1.9.2.2 rmind { 1734 1.9.2.2 rmind ACPI_HANDLE hdl = osc->sc_node->ad_handle; 1735 1.9.2.2 rmind ACPI_INTEGER val; 1736 1.9.2.2 rmind ACPI_STATUS rv; 1737 1.9.2.2 rmind 1738 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__DCS)) 1739 1.9.2.2 rmind return ENODEV; 1740 1.9.2.2 rmind 1741 1.9.2.2 rmind rv = acpi_eval_integer(hdl, "_DCS", &val); 1742 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1743 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "failed to evaluate %s.%s: %s\n", 1744 1.9.2.2 rmind acpi_name(hdl), "_DCS", AcpiFormatException(rv)); 1745 1.9.2.2 rmind return EIO; 1746 1.9.2.2 rmind } 1747 1.9.2.2 rmind 1748 1.9.2.2 rmind if (val > UINT32_MAX) 1749 1.9.2.2 rmind return ERANGE; 1750 1.9.2.2 rmind 1751 1.9.2.2 rmind *valuep = (uint32_t)val; 1752 1.9.2.2 rmind 1753 1.9.2.2 rmind ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: get %s: 0x%"PRIx32"\n", 1754 1.9.2.2 rmind device_xname(osc->sc_dev), "status", *valuep)); 1755 1.9.2.2 rmind 1756 1.9.2.2 rmind return 0; 1757 1.9.2.2 rmind } 1758 1.9.2.2 rmind 1759 1.9.2.2 rmind static int 1760 1.9.2.2 rmind acpidisp_get_state(const struct acpidisp_out_softc *osc, uint32_t *valuep) 1761 1.9.2.2 rmind { 1762 1.9.2.2 rmind ACPI_HANDLE hdl = osc->sc_node->ad_handle; 1763 1.9.2.2 rmind ACPI_INTEGER val; 1764 1.9.2.2 rmind ACPI_STATUS rv; 1765 1.9.2.2 rmind 1766 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__DGS)) 1767 1.9.2.2 rmind return ENODEV; 1768 1.9.2.2 rmind 1769 1.9.2.2 rmind rv = acpi_eval_integer(hdl, "_DGS", &val); 1770 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1771 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "failed to evaluate %s.%s: %s\n", 1772 1.9.2.2 rmind acpi_name(hdl), "_DGS", AcpiFormatException(rv)); 1773 1.9.2.2 rmind return EIO; 1774 1.9.2.2 rmind } 1775 1.9.2.2 rmind 1776 1.9.2.2 rmind if (val > UINT32_MAX) 1777 1.9.2.2 rmind return ERANGE; 1778 1.9.2.2 rmind 1779 1.9.2.2 rmind *valuep = (uint32_t)val; 1780 1.9.2.2 rmind 1781 1.9.2.2 rmind ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: get %s: 0x%"PRIx32"\n", 1782 1.9.2.2 rmind device_xname(osc->sc_dev), "state", *valuep)); 1783 1.9.2.2 rmind 1784 1.9.2.2 rmind return 0; 1785 1.9.2.2 rmind } 1786 1.9.2.2 rmind 1787 1.9.2.2 rmind static int 1788 1.9.2.2 rmind acpidisp_set_state(const struct acpidisp_out_softc *osc, uint32_t value) 1789 1.9.2.2 rmind { 1790 1.9.2.2 rmind ACPI_HANDLE hdl = osc->sc_node->ad_handle; 1791 1.9.2.2 rmind ACPI_INTEGER val; 1792 1.9.2.2 rmind ACPI_STATUS rv; 1793 1.9.2.2 rmind 1794 1.9.2.2 rmind ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: set %s: 0x%"PRIx32"\n", 1795 1.9.2.2 rmind device_xname(osc->sc_dev), "state", value)); 1796 1.9.2.2 rmind 1797 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__DSS)) 1798 1.9.2.2 rmind return ENODEV; 1799 1.9.2.2 rmind 1800 1.9.2.2 rmind val = (ACPI_INTEGER)value; 1801 1.9.2.2 rmind rv = acpi_eval_set_integer(hdl, "_DSS", val); 1802 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1803 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "failed to evaluate %s.%s: %s\n", 1804 1.9.2.2 rmind acpi_name(hdl), "_DSS", AcpiFormatException(rv)); 1805 1.9.2.2 rmind return EIO; 1806 1.9.2.2 rmind } 1807 1.9.2.2 rmind 1808 1.9.2.2 rmind return 0; 1809 1.9.2.2 rmind } 1810 1.9.2.2 rmind 1811 1.9.2.2 rmind static int 1812 1.9.2.2 rmind acpidisp_get_brightness(const struct acpidisp_out_softc *osc, uint8_t *valuep) 1813 1.9.2.2 rmind { 1814 1.9.2.2 rmind ACPI_HANDLE hdl = osc->sc_node->ad_handle; 1815 1.9.2.2 rmind ACPI_INTEGER val; 1816 1.9.2.2 rmind ACPI_STATUS rv; 1817 1.9.2.2 rmind 1818 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__BQC)) 1819 1.9.2.2 rmind return ENODEV; 1820 1.9.2.2 rmind 1821 1.9.2.2 rmind rv = acpi_eval_integer(hdl, "_BQC", &val); 1822 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1823 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "failed to evaluate %s.%s: %s\n", 1824 1.9.2.2 rmind acpi_name(hdl), "_BQC", AcpiFormatException(rv)); 1825 1.9.2.2 rmind return EIO; 1826 1.9.2.2 rmind } 1827 1.9.2.2 rmind 1828 1.9.2.2 rmind if (val > UINT8_MAX) 1829 1.9.2.2 rmind return ERANGE; 1830 1.9.2.2 rmind 1831 1.9.2.2 rmind *valuep = (uint8_t)val; 1832 1.9.2.2 rmind 1833 1.9.2.2 rmind ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: get %s: %"PRIu8"\n", 1834 1.9.2.2 rmind device_xname(osc->sc_dev), "brightness", *valuep)); 1835 1.9.2.2 rmind 1836 1.9.2.2 rmind return 0; 1837 1.9.2.2 rmind } 1838 1.9.2.2 rmind 1839 1.9.2.2 rmind static int 1840 1.9.2.2 rmind acpidisp_set_brightness(const struct acpidisp_out_softc *osc, uint8_t value) 1841 1.9.2.2 rmind { 1842 1.9.2.2 rmind ACPI_HANDLE hdl = osc->sc_node->ad_handle; 1843 1.9.2.2 rmind ACPI_INTEGER val; 1844 1.9.2.2 rmind ACPI_STATUS rv; 1845 1.9.2.2 rmind 1846 1.9.2.2 rmind ACPI_DEBUG_PRINT((ACPI_DB_INFO, "%s: set %s: %"PRIu8"\n", 1847 1.9.2.2 rmind device_xname(osc->sc_dev), "brightness", value)); 1848 1.9.2.2 rmind 1849 1.9.2.2 rmind if (!(osc->sc_caps & ACPI_DISP_OUT_CAP__BCM)) 1850 1.9.2.2 rmind return ENODEV; 1851 1.9.2.2 rmind 1852 1.9.2.2 rmind val = (ACPI_INTEGER)value; 1853 1.9.2.2 rmind rv = acpi_eval_set_integer(hdl, "_BCM", val); 1854 1.9.2.2 rmind if (ACPI_FAILURE(rv)) { 1855 1.9.2.2 rmind aprint_error_dev(osc->sc_dev, "failed to evaluate %s.%s: %s\n", 1856 1.9.2.2 rmind acpi_name(hdl), "_BCM", AcpiFormatException(rv)); 1857 1.9.2.2 rmind return EIO; 1858 1.9.2.2 rmind } 1859 1.9.2.2 rmind 1860 1.9.2.2 rmind return 0; 1861 1.9.2.2 rmind } 1862 1.9.2.2 rmind 1863 1.9.2.2 rmind /* 1864 1.9.2.2 rmind * Pretty printing. 1865 1.9.2.2 rmind */ 1866 1.9.2.2 rmind 1867 1.9.2.2 rmind static void 1868 1.9.2.2 rmind acpidisp_print_odinfo(device_t self, const struct acpidisp_odinfo *oi) 1869 1.9.2.2 rmind { 1870 1.9.2.2 rmind struct acpidisp_outdev *od; 1871 1.9.2.2 rmind uint32_t i; 1872 1.9.2.2 rmind 1873 1.9.2.2 rmind KASSERT(oi != NULL); 1874 1.9.2.2 rmind 1875 1.9.2.2 rmind aprint_verbose_dev(self, "connected output devices:\n"); 1876 1.9.2.2 rmind for (i = 0, od = oi->oi_dev; i < oi->oi_dev_count; i++, od++) { 1877 1.9.2.2 rmind aprint_verbose_dev(self, " 0x%04"PRIx16, od->od_attrs.device_id); 1878 1.9.2.2 rmind if (od->od_device != NULL) 1879 1.9.2.2 rmind aprint_verbose(" (%s)", device_xname(od->od_device)); 1880 1.9.2.2 rmind aprint_verbose(": "); 1881 1.9.2.2 rmind acpidisp_print_od_attrs(od->od_attrs); 1882 1.9.2.2 rmind aprint_verbose("\n"); 1883 1.9.2.2 rmind } 1884 1.9.2.2 rmind } 1885 1.9.2.2 rmind 1886 1.9.2.2 rmind static void 1887 1.9.2.2 rmind acpidisp_print_brctl(device_t self, const struct acpidisp_brctl *bc) 1888 1.9.2.2 rmind { 1889 1.9.2.2 rmind uint16_t i; 1890 1.9.2.2 rmind 1891 1.9.2.2 rmind KASSERT(bc != NULL); 1892 1.9.2.2 rmind 1893 1.9.2.2 rmind aprint_verbose_dev(self, "brightness levels:"); 1894 1.9.2.2 rmind for (i = 0; i < bc->bc_level_count; i++) 1895 1.9.2.2 rmind aprint_verbose(" %"PRIu8, bc->bc_level[i]); 1896 1.9.2.2 rmind aprint_verbose("\n"); 1897 1.9.2.2 rmind } 1898 1.9.2.2 rmind 1899 1.9.2.2 rmind static void 1900 1.9.2.2 rmind acpidisp_print_od_attrs(acpidisp_od_attrs_t oda) 1901 1.9.2.2 rmind { 1902 1.9.2.2 rmind const char *type; 1903 1.9.2.2 rmind 1904 1.9.2.2 rmind if (oda.fmt.device_id_scheme == 1) { 1905 1.9.2.2 rmind /* Uses the device ID scheme introduced in ACPI 3.0. */ 1906 1.9.2.2 rmind switch (oda.fmt.type) { 1907 1.9.2.2 rmind case ACPI_DISP_OUT_ATTR_TYPE_OTHER: 1908 1.9.2.2 rmind type = "Other"; 1909 1.9.2.2 rmind break; 1910 1.9.2.2 rmind case ACPI_DISP_OUT_ATTR_TYPE_VGA: 1911 1.9.2.2 rmind type = "VGA Analog Monitor"; 1912 1.9.2.2 rmind break; 1913 1.9.2.2 rmind case ACPI_DISP_OUT_ATTR_TYPE_TV: 1914 1.9.2.2 rmind type = "TV/HDTV Monitor"; 1915 1.9.2.2 rmind break; 1916 1.9.2.2 rmind case ACPI_DISP_OUT_ATTR_TYPE_EXTDIG: 1917 1.9.2.2 rmind type = "Ext. Digital Monitor"; 1918 1.9.2.2 rmind break; 1919 1.9.2.2 rmind case ACPI_DISP_OUT_ATTR_TYPE_INTDFP: 1920 1.9.2.2 rmind type = "Int. Digital Flat Panel"; 1921 1.9.2.2 rmind break; 1922 1.9.2.2 rmind default: 1923 1.9.2.2 rmind type = "Invalid"; 1924 1.9.2.2 rmind break; 1925 1.9.2.2 rmind } 1926 1.9.2.2 rmind 1927 1.9.2.2 rmind aprint_verbose("%s, index %d, port %d", 1928 1.9.2.2 rmind type, oda.fmt.index, oda.fmt.port); 1929 1.9.2.2 rmind } else { 1930 1.9.2.2 rmind /* Uses vendor-specific device IDs. */ 1931 1.9.2.2 rmind switch (oda.device_id) { 1932 1.9.2.2 rmind case ACPI_DISP_OUT_LEGACY_DEVID_MONITOR: 1933 1.9.2.2 rmind type = "Ext. Monitor"; 1934 1.9.2.2 rmind break; 1935 1.9.2.2 rmind case ACPI_DISP_OUT_LEGACY_DEVID_PANEL: 1936 1.9.2.2 rmind type = "LCD Panel"; 1937 1.9.2.2 rmind break; 1938 1.9.2.2 rmind case ACPI_DISP_OUT_LEGACY_DEVID_TV: 1939 1.9.2.2 rmind type = "TV"; 1940 1.9.2.2 rmind break; 1941 1.9.2.2 rmind default: 1942 1.9.2.2 rmind type = "Unknown Output Device"; 1943 1.9.2.2 rmind break; 1944 1.9.2.2 rmind } 1945 1.9.2.2 rmind 1946 1.9.2.2 rmind aprint_verbose("%s", type); 1947 1.9.2.2 rmind } 1948 1.9.2.2 rmind 1949 1.9.2.2 rmind aprint_verbose(", head %d", oda.fmt.head_id); 1950 1.9.2.2 rmind if (oda.fmt.bios_detect) 1951 1.9.2.2 rmind aprint_verbose(", bios detect"); 1952 1.9.2.2 rmind if (oda.fmt.non_vga) 1953 1.9.2.2 rmind aprint_verbose(", non vga"); 1954 1.9.2.2 rmind } 1955 1.9.2.2 rmind 1956 1.9.2.2 rmind /* 1957 1.9.2.2 rmind * General-purpose utility functions. 1958 1.9.2.2 rmind */ 1959 1.9.2.2 rmind 1960 1.9.2.2 rmind /* 1961 1.9.2.2 rmind * acpidisp_has_method: 1962 1.9.2.2 rmind * 1963 1.9.2.2 rmind * Returns true if and only if (a) the object handle.path exists and 1964 1.9.2.2 rmind * (b) this object is a method or has the given type. 1965 1.9.2.2 rmind */ 1966 1.9.2.2 rmind static bool 1967 1.9.2.2 rmind acpidisp_has_method(ACPI_HANDLE handle, const char *path, ACPI_OBJECT_TYPE type) 1968 1.9.2.2 rmind { 1969 1.9.2.2 rmind ACPI_HANDLE hdl; 1970 1.9.2.2 rmind ACPI_OBJECT_TYPE typ; 1971 1.9.2.2 rmind 1972 1.9.2.2 rmind KASSERT(handle != NULL); 1973 1.9.2.2 rmind 1974 1.9.2.2 rmind if (ACPI_FAILURE(AcpiGetHandle(handle, path, &hdl))) 1975 1.9.2.2 rmind return false; 1976 1.9.2.2 rmind 1977 1.9.2.2 rmind if (ACPI_FAILURE(AcpiGetType(hdl, &typ))) 1978 1.9.2.2 rmind return false; 1979 1.9.2.2 rmind 1980 1.9.2.2 rmind if (typ != ACPI_TYPE_METHOD && typ != type) 1981 1.9.2.2 rmind return false; 1982 1.9.2.2 rmind 1983 1.9.2.2 rmind return true; 1984 1.9.2.2 rmind } 1985 1.9.2.2 rmind 1986 1.9.2.2 rmind /* 1987 1.9.2.2 rmind * acpidisp_eval_package: 1988 1.9.2.2 rmind * 1989 1.9.2.2 rmind * Evaluate a package (with an expected minimum number of elements). 1990 1.9.2.2 rmind * Caller must free *pkg by ACPI_FREE(). 1991 1.9.2.2 rmind */ 1992 1.9.2.2 rmind static ACPI_STATUS 1993 1.9.2.2 rmind acpidisp_eval_package(ACPI_HANDLE handle, const char *path, ACPI_OBJECT **pkg, 1994 1.9.2.2 rmind unsigned int mincount) 1995 1.9.2.2 rmind { 1996 1.9.2.2 rmind ACPI_BUFFER buf; 1997 1.9.2.2 rmind ACPI_OBJECT *obj; 1998 1.9.2.2 rmind ACPI_STATUS rv; 1999 1.9.2.2 rmind 2000 1.9.2.2 rmind rv = acpi_eval_struct(handle, path, &buf); 2001 1.9.2.2 rmind if (ACPI_FAILURE(rv)) 2002 1.9.2.2 rmind return rv; 2003 1.9.2.2 rmind 2004 1.9.2.2 rmind if (buf.Length == 0 || buf.Pointer == NULL) 2005 1.9.2.2 rmind return AE_NULL_OBJECT; 2006 1.9.2.2 rmind 2007 1.9.2.2 rmind obj = buf.Pointer; 2008 1.9.2.2 rmind 2009 1.9.2.2 rmind if (obj->Type != ACPI_TYPE_PACKAGE) { 2010 1.9.2.2 rmind ACPI_FREE(obj); 2011 1.9.2.2 rmind return AE_TYPE; 2012 1.9.2.2 rmind } 2013 1.9.2.2 rmind 2014 1.9.2.2 rmind if (obj->Package.Count < mincount) { 2015 1.9.2.2 rmind ACPI_FREE(obj); 2016 1.9.2.2 rmind return AE_BAD_DATA; 2017 1.9.2.2 rmind } 2018 1.9.2.2 rmind 2019 1.9.2.2 rmind *pkg = obj; 2020 1.9.2.2 rmind return rv; 2021 1.9.2.2 rmind } 2022 1.9.2.2 rmind 2023 1.9.2.2 rmind /* 2024 1.9.2.2 rmind * acpidisp_array_search: 2025 1.9.2.2 rmind * 2026 1.9.2.2 rmind * Look for a value v in a sorted array a of n integers (n > 0). Fill *l 2027 1.9.2.2 rmind * and *u as follows: 2028 1.9.2.2 rmind * 2029 1.9.2.2 rmind * *l = Max {a[i] | a[i] <= v or i = 0} 2030 1.9.2.2 rmind * *u = Min {a[i] | a[i] >= v or i = n-1} 2031 1.9.2.2 rmind */ 2032 1.9.2.2 rmind static void 2033 1.9.2.2 rmind acpidisp_array_search(const uint8_t *a, uint16_t n, int v, uint8_t *l, uint8_t *u) 2034 1.9.2.2 rmind { 2035 1.9.2.2 rmind uint16_t i, j, m; 2036 1.9.2.2 rmind 2037 1.9.2.2 rmind if (v <= a[0]) { 2038 1.9.2.2 rmind *l = a[0]; 2039 1.9.2.2 rmind *u = a[0]; 2040 1.9.2.2 rmind return; 2041 1.9.2.2 rmind } 2042 1.9.2.2 rmind if (v >= a[n-1]) { 2043 1.9.2.2 rmind *l = a[n-1]; 2044 1.9.2.2 rmind *u = a[n-1]; 2045 1.9.2.2 rmind return; 2046 1.9.2.2 rmind } 2047 1.9.2.2 rmind 2048 1.9.2.2 rmind for (i = 0, j = n - 1; j - i > 1; ) { 2049 1.9.2.2 rmind m = (i + j) / 2; 2050 1.9.2.2 rmind 2051 1.9.2.2 rmind if (a[m] == v) { 2052 1.9.2.2 rmind *l = v; 2053 1.9.2.2 rmind *u = v; 2054 1.9.2.2 rmind return; 2055 1.9.2.2 rmind } 2056 1.9.2.2 rmind 2057 1.9.2.2 rmind if (a[m] < v) 2058 1.9.2.2 rmind i = m; 2059 1.9.2.2 rmind else 2060 1.9.2.2 rmind j = m; 2061 1.9.2.2 rmind } 2062 1.9.2.2 rmind 2063 1.9.2.2 rmind /* Here a[i] < v < a[j] and j = i + 1. */ 2064 1.9.2.2 rmind *l = a[i]; 2065 1.9.2.2 rmind *u = a[j]; 2066 1.9.2.2 rmind return; 2067 1.9.2.2 rmind } 2068 1.9.2.2 rmind 2069 1.9.2.2 rmind MODULE(MODULE_CLASS_DRIVER, acpivga, NULL); 2070 1.9.2.2 rmind 2071 1.9.2.2 rmind #ifdef _MODULE 2072 1.9.2.2 rmind #include "ioconf.c" 2073 1.9.2.2 rmind #endif 2074 1.9.2.2 rmind 2075 1.9.2.2 rmind static int 2076 1.9.2.2 rmind acpivga_modcmd(modcmd_t cmd, void *aux) 2077 1.9.2.2 rmind { 2078 1.9.2.2 rmind int rv = 0; 2079 1.9.2.2 rmind 2080 1.9.2.2 rmind switch (cmd) { 2081 1.9.2.2 rmind 2082 1.9.2.2 rmind case MODULE_CMD_INIT: 2083 1.9.2.2 rmind 2084 1.9.2.2 rmind #ifdef _MODULE 2085 1.9.2.2 rmind rv = config_init_component(cfdriver_ioconf_acpivga, 2086 1.9.2.2 rmind cfattach_ioconf_acpivga, cfdata_ioconf_acpivga); 2087 1.9.2.2 rmind #endif 2088 1.9.2.2 rmind break; 2089 1.9.2.2 rmind 2090 1.9.2.2 rmind case MODULE_CMD_FINI: 2091 1.9.2.2 rmind 2092 1.9.2.2 rmind #ifdef _MODULE 2093 1.9.2.2 rmind rv = config_fini_component(cfdriver_ioconf_acpivga, 2094 1.9.2.2 rmind cfattach_ioconf_acpivga, cfdata_ioconf_acpivga); 2095 1.9.2.2 rmind #endif 2096 1.9.2.2 rmind break; 2097 1.9.2.2 rmind 2098 1.9.2.2 rmind default: 2099 1.9.2.2 rmind rv = ENOTTY; 2100 1.9.2.2 rmind } 2101 1.9.2.2 rmind 2102 1.9.2.2 rmind return rv; 2103 1.9.2.2 rmind } 2104
Indexes created Sun Oct 19 02:09:48 GMT 2025