| /* |
| * Copyright 2012 Red Hat Inc. |
| * |
| * Permission is hereby granted, free of charge, to any person obtaining a |
| * copy of this software and associated documentation files (the "Software"), |
| * to deal in the Software without restriction, including without limitation |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| * and/or sell copies of the Software, and to permit persons to whom the |
| * Software is furnished to do so, subject to the following conditions: |
| * |
| * The above copyright notice and this permission notice shall be included in |
| * all copies or substantial portions of the Software. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
| * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR |
| * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, |
| * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
| * OTHER DEALINGS IN THE SOFTWARE. |
| * |
| * Authors: Ben Skeggs |
| */ |
| #include "priv.h" |
| #include "pad.h" |
| |
| void |
| g94_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx) |
| { |
| struct nvkm_device *device = i2c->subdev.device; |
| u32 intr = nvkm_rd32(device, 0x00e06c); |
| u32 stat = nvkm_rd32(device, 0x00e068) & intr, i; |
| for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) { |
| if ((stat & (1 << (i * 4)))) *hi |= 1 << i; |
| if ((stat & (2 << (i * 4)))) *lo |= 1 << i; |
| if ((stat & (4 << (i * 4)))) *rq |= 1 << i; |
| if ((stat & (8 << (i * 4)))) *tx |= 1 << i; |
| } |
| nvkm_wr32(device, 0x00e06c, intr); |
| } |
| |
| void |
| g94_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data) |
| { |
| struct nvkm_device *device = i2c->subdev.device; |
| u32 temp = nvkm_rd32(device, 0x00e068), i; |
| for (i = 0; i < 8; i++) { |
| if (mask & (1 << i)) { |
| if (!(data & (1 << i))) { |
| temp &= ~(type << (i * 4)); |
| continue; |
| } |
| temp |= type << (i * 4); |
| } |
| } |
| nvkm_wr32(device, 0x00e068, temp); |
| } |
| |
| static const struct nvkm_i2c_func |
| g94_i2c = { |
| .pad_x_new = g94_i2c_pad_x_new, |
| .pad_s_new = g94_i2c_pad_s_new, |
| .aux = 4, |
| .aux_stat = g94_aux_stat, |
| .aux_mask = g94_aux_mask, |
| }; |
| |
| int |
| g94_i2c_new(struct nvkm_device *device, int index, struct nvkm_i2c **pi2c) |
| { |
| return nvkm_i2c_new_(&g94_i2c, device, index, pi2c); |
| } |
