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 #include "nv50.h" 25 26 void 27 gk104_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx) 28 { 29 u32 intr = nv_rd32(i2c, 0x00dc60); 30 u32 stat = nv_rd32(i2c, 0x00dc68) & intr, i; 31 for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) { 32 if ((stat & (1 << (i * 4)))) *hi |= 1 << i; 33 if ((stat & (2 << (i * 4)))) *lo |= 1 << i; 34 if ((stat & (4 << (i * 4)))) *rq |= 1 << i; 35 if ((stat & (8 << (i * 4)))) *tx |= 1 << i; 36 } 37 nv_wr32(i2c, 0x00dc60, intr); 38 } 39 40 void 41 gk104_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data) 42 { 43 u32 temp = nv_rd32(i2c, 0x00dc68), i; 44 for (i = 0; i < 8; i++) { 45 if (mask & (1 << i)) { 46 if (!(data & (1 << i))) { 47 temp &= ~(type << (i * 4)); 48 continue; 49 } 50 temp |= type << (i * 4); 51 } 52 } 53 nv_wr32(i2c, 0x00dc68, temp); 54 } 55 56 struct nvkm_oclass * 57 gk104_i2c_oclass = &(struct nvkm_i2c_impl) { 58 .base.handle = NV_SUBDEV(I2C, 0xe0), 59 .base.ofuncs = &(struct nvkm_ofuncs) { 60 .ctor = _nvkm_i2c_ctor, 61 .dtor = _nvkm_i2c_dtor, 62 .init = _nvkm_i2c_init, 63 .fini = _nvkm_i2c_fini, 64 }, 65 .sclass = gf110_i2c_sclass, 66 .pad_x = &nv04_i2c_pad_oclass, 67 .pad_s = &g94_i2c_pad_oclass, 68 .aux = 4, 69 .aux_stat = gk104_aux_stat, 70 .aux_mask = gk104_aux_mask, 71 }.base; 72