projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| e0996aea BS |
1 | /* |
| 2 | * Copyright 2012 Red Hat Inc. | |
| 3 | * | |
| 4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
| 5 | * copy of this software and associated documentation files (the "Software"), | |
| 6 | * to deal in the Software without restriction, including without limitation | |
| 7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
| 8 | * and/or sell copies of the Software, and to permit persons to whom the | |
| 9 | * Software is furnished to do so, subject to the following conditions: | |
| 10 | * | |
| 11 | * The above copyright notice and this permission notice shall be included in | |
| 12 | * all copies or substantial portions of the Software. | |
| 13 | * | |
| 14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
| 15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
| 16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
| 17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
| 18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
| 19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
| 20 | * OTHER DEALINGS IN THE SOFTWARE. | |
| 21 | * | |
| 22 | * Authors: Ben Skeggs | |
| 23 | */ | |
| 24 | ||
| fa531bc8 | 25 | #include "priv.h" |
| e0996aea | 26 | |
| fa531bc8 | 27 | void |
| 1ed73166 | 28 | nvd0_gpio_reset(struct nouveau_gpio *gpio, u8 match) |
| e0996aea BS |
29 | { |
| 30 | struct nouveau_bios *bios = nouveau_bios(gpio); | |
| d2bcea68 | 31 | u8 ver, len; |
| e0996aea | 32 | u16 entry; |
| e0996aea BS |
33 | int ent = -1; |
| 34 | ||
| d2bcea68 | 35 | while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver, &len))) { |
| e0996aea BS |
36 | u32 data = nv_ro32(bios, entry); |
| 37 | u8 line = (data & 0x0000003f); | |
| 38 | u8 defs = !!(data & 0x00000080); | |
| 39 | u8 func = (data & 0x0000ff00) >> 8; | |
| 40 | u8 unk0 = (data & 0x00ff0000) >> 16; | |
| 41 | u8 unk1 = (data & 0x1f000000) >> 24; | |
| 42 | ||
| 1ed73166 BS |
43 | if ( func == DCB_GPIO_UNUSED || |
| 44 | (match != DCB_GPIO_UNUSED && match != func)) | |
| e0996aea BS |
45 | continue; |
| 46 | ||
| 47 | gpio->set(gpio, 0, func, line, defs); | |
| 48 | ||
| bc3b0c41 | 49 | nv_mask(gpio, 0x00d610 + (line * 4), 0xff, unk0); |
| e0996aea | 50 | if (unk1--) |
| bc3b0c41 | 51 | nv_mask(gpio, 0x00d740 + (unk1 * 4), 0xff, line); |
| e0996aea BS |
52 | } |
| 53 | } | |
| 54 | ||
| fa531bc8 | 55 | int |
| e0996aea BS |
56 | nvd0_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) |
| 57 | { | |
| 58 | u32 data = ((dir ^ 1) << 13) | (out << 12); | |
| 59 | nv_mask(gpio, 0x00d610 + (line * 4), 0x00003000, data); | |
| 60 | nv_mask(gpio, 0x00d604, 0x00000001, 0x00000001); /* update? */ | |
| 61 | return 0; | |
| 62 | } | |
| 63 | ||
| fa531bc8 | 64 | int |
| e0996aea BS |
65 | nvd0_gpio_sense(struct nouveau_gpio *gpio, int line) |
| 66 | { | |
| 67 | return !!(nv_rd32(gpio, 0x00d610 + (line * 4)) & 0x00004000); | |
| 68 | } | |
| 69 | ||
| d93174ec | 70 | struct nouveau_oclass * |
| 7356859a BS |
71 | nvd0_gpio_oclass = &(struct nouveau_gpio_impl) { |
| 72 | .base.handle = NV_SUBDEV(GPIO, 0xd0), | |
| 73 | .base.ofuncs = &(struct nouveau_ofuncs) { | |
| bc3b0c41 | 74 | .ctor = _nouveau_gpio_ctor, |
| f4277a0e BS |
75 | .dtor = _nouveau_gpio_dtor, |
| 76 | .init = _nouveau_gpio_init, | |
| 77 | .fini = _nouveau_gpio_fini, | |
| e0996aea | 78 | }, |
| 7356859a | 79 | .lines = 32, |
| 5693c0f2 BS |
80 | .intr_stat = nv92_gpio_intr_stat, |
| 81 | .intr_mask = nv92_gpio_intr_mask, | |
| bc3b0c41 BS |
82 | .drive = nvd0_gpio_drive, |
| 83 | .sense = nvd0_gpio_sense, | |
| 84 | .reset = nvd0_gpio_reset, | |
| 7356859a | 85 | }.base; |