Benjamin Doron | 289a67d | 2019-09-22 17:33:12 +1000 | [diff] [blame] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| 2 | |
| 3 | #if !CONFIG(EC_USE_LGMR) |
| 4 | /* TODO: Consider actually enforcing mutex? */ |
| 5 | Mutex (BMTX, 0) |
| 6 | #endif |
| 7 | Name (B0ST, 0) /* Battery 0 status */ |
| 8 | |
| 9 | /* |
| 10 | * EC Registers |
| 11 | * |
| 12 | * "EBID" is the battery page selector. |
| 13 | * |
| 14 | * |
| 15 | * Data on the 128 bits following offset |
| 16 | * 0xE0 is accessed in the following order: |
| 17 | * |
| 18 | * Information: |
| 19 | * Page 0: EBCM # start on page 0 # |
| 20 | * Page 0: EBFC |
| 21 | * Page 1: EBDC # switch to page 1 # |
| 22 | * Page 1: EBDV |
| 23 | * Page 1: EBSN |
| 24 | * Page 3: EBDN # switch to page 3 # |
| 25 | * Page 4: EBCH # switch to page 4 # |
| 26 | * Page 2: EBMN # switch to page 2 # |
| 27 | * |
| 28 | * Status: |
| 29 | * Page 0: EBAC # start on page 0 # |
| 30 | * Page 0: EBRC |
| 31 | * Page 0: EBFC |
| 32 | * Page 0: EBVO |
| 33 | */ |
| 34 | /* Page 0 */ |
| 35 | Field (RAM, ByteAcc, Lock, Preserve) |
| 36 | { |
| 37 | Offset (0xE0), |
| 38 | EBRC, 16, /* Battery remaining capacity */ |
| 39 | EBFC, 16, /* Battery full charge capacity */ |
| 40 | EBPE, 16, |
| 41 | EBAC, 16, /* Battery present rate */ |
| 42 | EBVO, 16, /* Battery voltage */ |
| 43 | , 15, |
| 44 | EBCM, 1, /* Battery charging */ |
| 45 | EBCU, 16, |
| 46 | EBTV, 16, |
| 47 | } |
| 48 | |
| 49 | /* Page 1 */ |
| 50 | Field (RAM, ByteAcc, Lock, Preserve) |
| 51 | { |
| 52 | Offset (0xE0), |
| 53 | EBDC, 16, /* Battery design capacity */ |
| 54 | EBDV, 16, /* Battery design voltage */ |
| 55 | EBSN, 16, /* Battery serial number */ |
| 56 | } |
| 57 | |
| 58 | /* Page 2 */ |
| 59 | Field (RAM, ByteAcc, NoLock, Preserve) |
| 60 | { |
| 61 | Offset (0xE0), |
| 62 | EBMN, 128, /* Battery manufacturer */ |
| 63 | } |
| 64 | |
| 65 | /* Page 3 */ |
| 66 | Field (RAM, ByteAcc, NoLock, Preserve) |
| 67 | { |
| 68 | Offset (0xE0), |
| 69 | EBDN, 128, /* Battery model */ |
| 70 | } |
| 71 | |
| 72 | /* Page 4 */ |
| 73 | Field (RAM, ByteAcc, NoLock, Preserve) |
| 74 | { |
| 75 | Offset (0xE0), |
| 76 | EBCH, 128, /* Battery type */ |
| 77 | } |
| 78 | |
| 79 | #if CONFIG(EC_USE_LGMR) |
| 80 | OperationRegion (MBB0, SystemMemory, (LGMR + 0x80), 0xFF) |
| 81 | Field (MBB0, ByteAcc, Lock, Preserve) |
| 82 | { |
| 83 | MBRC, 16, |
| 84 | MBFC, 16, |
| 85 | MBPE, 16, |
| 86 | MBAC, 16, |
| 87 | MBVO, 16, |
| 88 | , 15, |
| 89 | MBCM, 1, |
| 90 | MBCU, 16, |
| 91 | MBTV, 16, |
| 92 | } |
| 93 | |
| 94 | Field (MBB0, ByteAcc, Lock, Preserve) |
| 95 | { |
| 96 | Offset (0x10), |
| 97 | MBDC, 16, |
| 98 | MBDV, 16, |
| 99 | MBSN, 16, |
| 100 | } |
| 101 | |
| 102 | Field (MBB0, ByteAcc, Lock, Preserve) |
| 103 | { |
| 104 | Offset (0x40), |
| 105 | MBMN, 128, |
| 106 | } |
| 107 | |
| 108 | Field (MBB0, ByteAcc, Lock, Preserve) |
| 109 | { |
| 110 | Offset (0x50), |
| 111 | MBDN, 256, |
| 112 | } |
| 113 | |
| 114 | Field (MBB0, ByteAcc, Lock, Preserve) |
| 115 | { |
| 116 | Offset (0x70), |
| 117 | MBCH, 128, |
| 118 | } |
| 119 | #endif |
| 120 | |
| 121 | /* |
| 122 | * Arg0: Battery number |
| 123 | * Arg1: Battery Information Package |
| 124 | * Arg2: Status |
| 125 | */ |
| 126 | #if !CONFIG(EC_USE_LGMR) |
| 127 | Method (GBIF, 3, Serialized) |
| 128 | { |
| 129 | Acquire (BMTX, 0xFFFF) // Due to EC paging, don't run this with another function |
| 130 | #else |
| 131 | Method (GBIF, 3, NotSerialized) |
| 132 | { |
| 133 | #endif |
| 134 | If (Arg2) |
| 135 | { |
| 136 | Arg1[1] = 0xFFFFFFFF |
| 137 | Arg1[2] = 0xFFFFFFFF |
| 138 | Arg1[4] = 0xFFFFFFFF |
| 139 | Arg1[5] = 0 |
| 140 | Arg1[6] = 0 |
| 141 | } |
| 142 | Else |
| 143 | { |
| 144 | #if CONFIG(EC_USE_LGMR) |
| 145 | Local0 = MBCM |
| 146 | #else |
| 147 | EBID = 0 // We don't know which page was active |
| 148 | Local0 = EBCM |
| 149 | #endif |
| 150 | Arg1[0] = (Local0 ^ 1) |
| 151 | |
| 152 | #if CONFIG(EC_USE_LGMR) |
| 153 | Local2 = MBFC |
| 154 | Local1 = MBDC |
| 155 | #else |
| 156 | Local2 = EBFC |
| 157 | EBID = 1 |
| 158 | Local1 = EBDC |
| 159 | #endif |
| 160 | If (Local0) |
| 161 | { |
| 162 | Local2 *= 10 |
| 163 | Local1 *= 10 |
| 164 | } |
| 165 | |
| 166 | Arg1[1] = Local1 // Design capacity |
| 167 | Arg1[2] = Local2 // Last full charge capacity |
| 168 | #if CONFIG(EC_USE_LGMR) |
| 169 | Arg1[4] = MBDV // Design voltage |
| 170 | #else |
| 171 | Arg1[4] = EBDV // Design voltage |
| 172 | #endif |
| 173 | Local6 = (Local2 / 100) // Warning capacities; Remainders ignored |
| 174 | Arg1[5] = (Local6 * 7) /* Low: 7% */ |
| 175 | Arg1[6] = ((Local6 * 11) / 2) /* Very low: 5.5% */ |
| 176 | #if CONFIG(EC_USE_LGMR) |
| 177 | Local7 = MBSN |
| 178 | #else |
| 179 | Local7 = EBSN |
| 180 | #endif |
| 181 | Name (SERN, Buffer (0x06) { " " }) |
| 182 | /* |
| 183 | * Convert hex to decimal. |
| 184 | * - There appears to be a bug in the vendor's implementation: |
| 185 | * The correct answer has, or can have, 5 digits, so Local6 = 5. |
| 186 | * Also see "SERN" buffer. |
| 187 | * - Userspace prints reversed serial number? |
| 188 | */ |
| 189 | Local6 = 4 |
| 190 | While (Local7) |
| 191 | { |
Felix Singer | 8171364 | 2022-12-25 16:54:45 +0100 | [diff] [blame^] | 192 | Local5 = Local7 % 10 |
| 193 | Local7 = Local7 / 10 |
Benjamin Doron | 289a67d | 2019-09-22 17:33:12 +1000 | [diff] [blame] | 194 | SERN[Local6] = (Local5 + 0x30) // Add 0x30 to get numeric ASCII |
| 195 | Local6-- |
| 196 | } |
| 197 | |
| 198 | Arg1[10] = SERN // Serial number |
| 199 | #if CONFIG(EC_USE_LGMR) |
| 200 | Arg1[9] = MBDN // Model number |
| 201 | Arg1[11] = MBCH // Battery type |
| 202 | Arg1[12] = MBMN // OEM information |
| 203 | #else |
| 204 | EBID = 3 |
| 205 | Arg1[9] = EBDN // Model number |
| 206 | EBID = 4 |
| 207 | Arg1[11] = EBCH // Battery type |
| 208 | EBID = 2 |
| 209 | Arg1[12] = EBMN // OEM information |
| 210 | #endif |
| 211 | } |
| 212 | |
| 213 | #if !CONFIG(EC_USE_LGMR) |
| 214 | Release (BMTX) |
| 215 | #endif |
| 216 | Return (Arg1) |
| 217 | } |
| 218 | |
| 219 | /* |
| 220 | * Arg0: Battery number |
| 221 | * Arg1: State information |
| 222 | * Arg2: Power units |
| 223 | * Arg3: Battery Status Package |
| 224 | */ |
| 225 | Method (GBST, 4, NotSerialized) // All on one page |
| 226 | { |
| 227 | #if !CONFIG(EC_USE_LGMR) |
| 228 | Acquire (BMTX, 0xFFFF) // Due to EC paging, don't run this with another function |
| 229 | #endif |
| 230 | If (Arg1 & 0x02) // BIT1 in "MB0S/EB0S" |
| 231 | { |
| 232 | Local0 = 2 |
| 233 | If (Arg1 & 0x20) // "EB0F" |
| 234 | { |
| 235 | Local0 = 0 |
| 236 | } |
| 237 | } |
| 238 | ElseIf (Arg1 & 0x04) // BIT2 in "MB0S/EB0S" |
| 239 | { |
| 240 | Local0 = 1 |
| 241 | } |
| 242 | Else |
| 243 | { |
| 244 | Local0 = 0 |
| 245 | } |
| 246 | |
| 247 | If (Arg1 & 0x10) // "EB0L" |
| 248 | { |
| 249 | Local0 |= 0x04 |
| 250 | } |
| 251 | |
| 252 | If (Arg1 & 0x01) // "EB0A" |
| 253 | { |
| 254 | /* |
| 255 | * Present rate is a 16bit signed int, positive while charging |
| 256 | * and negative while discharging. |
| 257 | */ |
| 258 | #if CONFIG(EC_USE_LGMR) |
| 259 | Local1 = MBAC |
| 260 | Local2 = MBRC |
| 261 | If (MACS) // Charging |
| 262 | #else |
| 263 | EBID = 0 // We don't know which page was active |
| 264 | Local1 = EBAC |
| 265 | Local2 = EBRC |
| 266 | If (EACS) // Charging |
| 267 | #endif |
| 268 | { |
| 269 | If (Arg1 & 0x20) // "EB0F" |
| 270 | { |
| 271 | #if CONFIG(EC_USE_LGMR) |
| 272 | Local2 = MBFC |
| 273 | #else |
| 274 | Local2 = EBFC |
| 275 | #endif |
| 276 | } |
| 277 | } |
| 278 | |
| 279 | If (Arg2) |
| 280 | { |
| 281 | Local2 *= 10 |
| 282 | } |
| 283 | |
| 284 | #if CONFIG(EC_USE_LGMR) |
| 285 | Local3 = MBVO |
| 286 | #else |
| 287 | Local3 = EBVO |
| 288 | #endif |
| 289 | /* |
| 290 | * The present rate value should be positive unless discharging. If so, |
| 291 | * negate present rate. |
| 292 | */ |
| 293 | If (Local1 >= 0x8000) |
| 294 | { |
| 295 | If (Local0 & 0x01) |
| 296 | { |
| 297 | Local1 = (0x00010000 - Local1) |
| 298 | } |
| 299 | Else |
| 300 | { |
| 301 | Local1 = 0 // Full battery, force to 0 |
| 302 | } |
| 303 | } |
| 304 | /* |
| 305 | * If that was not the case, we have an EC bug or inconsistency |
| 306 | * and force the value to 0. |
| 307 | */ |
| 308 | ElseIf ((Local0 & 0x02) == 0) |
| 309 | { |
| 310 | Local1 = 0 |
| 311 | } |
| 312 | |
| 313 | If (Arg2) |
| 314 | { |
| 315 | Local1 *= Local3 |
| 316 | Local1 /= 1000 /* Remainder ignored by vendor */ |
| 317 | } |
| 318 | } |
| 319 | Else |
| 320 | { |
| 321 | Local0 = 0 |
| 322 | Local1 = 0xFFFFFFFF |
| 323 | Local2 = 0xFFFFFFFF |
| 324 | Local3 = 0xFFFFFFFF |
| 325 | } |
| 326 | |
| 327 | Arg3[0] = Local0 |
| 328 | Arg3[1] = Local1 |
| 329 | Arg3[2] = Local2 |
| 330 | Arg3[3] = Local3 |
| 331 | |
| 332 | #if !CONFIG(EC_USE_LGMR) |
| 333 | Release (BMTX) |
| 334 | #endif |
| 335 | Return (Arg3) |
| 336 | } |
| 337 | |
| 338 | Device (BAT0) |
| 339 | { |
| 340 | Name (_HID, EisaId ("PNP0C0A") /* Control Method Battery */) // _HID: Hardware ID |
| 341 | Name (_UID, 0) // _UID: Unique ID |
| 342 | Name (_PCL, Package () { \_SB }) // _PCL: Power Consumer List |
| 343 | |
| 344 | Name (B0IP, Package (0x0D) |
| 345 | { |
| 346 | 1, /* 0x00: Power Unit: mAh */ |
| 347 | 0xFFFFFFFF, /* 0x01: Design Capacity */ |
| 348 | 0xFFFFFFFF, /* 0x02: Last Full Charge Capacity */ |
| 349 | 1, /* 0x03: Battery Technology: Rechargeable */ |
| 350 | 0xFFFFFFFF, /* 0x04: Design Voltage */ |
| 351 | 0, /* 0x05: Design Capacity of Warning */ |
| 352 | 0, /* 0x06: Design Capacity of Low */ |
| 353 | 1, /* 0x07: Capacity Granularity 1 */ |
| 354 | 1, /* 0x08: Capacity Granularity 2 */ |
| 355 | "", /* 0x09: Model Number */ |
| 356 | "100", /* 0x0a: Serial Number */ |
| 357 | "Lion", /* 0x0b: Battery Type */ |
| 358 | 0 /* 0x0c: OEM Information */ |
| 359 | }) |
| 360 | Name (B0SP, Package (0x04) |
| 361 | { |
| 362 | 0, /* 0x00: Battery State */ |
| 363 | 0xFFFFFFFF, /* 0x01: Battery Present Rate */ |
| 364 | 0xFFFFFFFF, /* 0x02: Battery Remaining Capacity */ |
| 365 | 0xFFFFFFFF /* 0x03: Battery Present Voltage */ |
| 366 | }) |
| 367 | Method (_STA, 0, NotSerialized) // _STA: Status |
| 368 | { |
| 369 | /* Bitwise AND by vendor is lossy? */ |
| 370 | Local1 = EB0A |
| 371 | If (Local1 & 0x40) |
| 372 | { |
| 373 | Local1 = 0 |
| 374 | } |
| 375 | |
| 376 | B0ST = Local1 |
| 377 | If (Local1) |
| 378 | { |
| 379 | Return (0x1F) |
| 380 | } |
| 381 | Else |
| 382 | { |
| 383 | Return (0x0F) |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | Method (_BIF, 0, NotSerialized) // _BIF: Battery Information |
| 388 | { |
| 389 | Local6 = B0ST |
| 390 | Local7 = 20 |
| 391 | While (Local6 && Local7) |
| 392 | { |
| 393 | If (EB0R) |
| 394 | { |
| 395 | Local6 = 0 |
| 396 | } |
| 397 | Else |
| 398 | { |
| 399 | Sleep (500) |
| 400 | Local7-- |
| 401 | } |
| 402 | } |
| 403 | |
| 404 | Return (GBIF (0, B0IP, Local6)) |
| 405 | } |
| 406 | |
| 407 | Method (_BST, 0, NotSerialized) // _BST: Battery Status |
| 408 | { |
| 409 | Local0 = (DerefOf (B0IP[0]) ^ 1) |
| 410 | #if CONFIG(EC_USE_LGMR) |
| 411 | Local5 = MB0S |
| 412 | #else |
| 413 | Local5 = EB0S |
| 414 | #endif |
| 415 | Return (GBST (0, Local5, Local0, B0SP)) |
| 416 | } |
| 417 | } |