76 lines
2.6 KiB
C
76 lines
2.6 KiB
C
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/*
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* Copyright 2012 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "priv.h"
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void
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g94_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo)
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{
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struct nvkm_device *device = gpio->subdev.device;
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u32 intr0 = nvkm_rd32(device, 0x00e054);
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u32 intr1 = nvkm_rd32(device, 0x00e074);
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u32 stat0 = nvkm_rd32(device, 0x00e050) & intr0;
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u32 stat1 = nvkm_rd32(device, 0x00e070) & intr1;
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*lo = (stat1 & 0xffff0000) | (stat0 >> 16);
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*hi = (stat1 << 16) | (stat0 & 0x0000ffff);
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nvkm_wr32(device, 0x00e054, intr0);
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nvkm_wr32(device, 0x00e074, intr1);
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}
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void
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g94_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data)
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{
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struct nvkm_device *device = gpio->subdev.device;
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u32 inte0 = nvkm_rd32(device, 0x00e050);
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u32 inte1 = nvkm_rd32(device, 0x00e070);
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if (type & NVKM_GPIO_LO)
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inte0 = (inte0 & ~(mask << 16)) | (data << 16);
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if (type & NVKM_GPIO_HI)
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inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);
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mask >>= 16;
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data >>= 16;
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if (type & NVKM_GPIO_LO)
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inte1 = (inte1 & ~(mask << 16)) | (data << 16);
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if (type & NVKM_GPIO_HI)
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inte1 = (inte1 & ~mask) | data;
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nvkm_wr32(device, 0x00e050, inte0);
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nvkm_wr32(device, 0x00e070, inte1);
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}
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static const struct nvkm_gpio_func
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g94_gpio = {
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.lines = 32,
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.intr_stat = g94_gpio_intr_stat,
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.intr_mask = g94_gpio_intr_mask,
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.drive = nv50_gpio_drive,
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.sense = nv50_gpio_sense,
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.reset = nv50_gpio_reset,
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};
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int
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g94_gpio_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
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struct nvkm_gpio **pgpio)
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{
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return nvkm_gpio_new_(&g94_gpio, device, type, inst, pgpio);
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}
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