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 25#include "nv50.h" 26 27static void 28nve0_aux_stat(struct nouveau_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx) 29{ 30 u32 intr = nv_rd32(i2c, 0x00dc60); 31 u32 stat = nv_rd32(i2c, 0x00dc68) & intr, i; 32 for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) { 33 if ((stat & (1 << (i * 4)))) *hi |= 1 << i; 34 if ((stat & (2 << (i * 4)))) *lo |= 1 << i; 35 if ((stat & (4 << (i * 4)))) *rq |= 1 << i; 36 if ((stat & (8 << (i * 4)))) *tx |= 1 << i; 37 } 38 nv_wr32(i2c, 0x00dc60, intr); 39} 40 41static void 42nve0_aux_mask(struct nouveau_i2c *i2c, u32 type, u32 mask, u32 data) 43{ 44 u32 temp = nv_rd32(i2c, 0x00dc68), i; 45 for (i = 0; i < 8; i++) { 46 if (mask & (1 << i)) { 47 if (!(data & (1 << i))) { 48 temp &= ~(type << (i * 4)); 49 continue; 50 } 51 temp |= type << (i * 4); 52 } 53 } 54 nv_wr32(i2c, 0x00dc68, temp); 55} 56 57struct nouveau_oclass * 58nve0_i2c_oclass = &(struct nouveau_i2c_impl) { 59 .base.handle = NV_SUBDEV(I2C, 0xe0), 60 .base.ofuncs = &(struct nouveau_ofuncs) { 61 .ctor = _nouveau_i2c_ctor, 62 .dtor = _nouveau_i2c_dtor, 63 .init = _nouveau_i2c_init, 64 .fini = _nouveau_i2c_fini, 65 }, 66 .sclass = nvd0_i2c_sclass, 67 .pad_x = &nv04_i2c_pad_oclass, 68 .pad_s = &nv94_i2c_pad_oclass, 69 .aux = 4, 70 .aux_stat = nve0_aux_stat, 71 .aux_mask = nve0_aux_mask, 72}.base; 73