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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c new file mode 100644 index 000000000..48ad29b56 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c @@ -0,0 +1,119 @@ +/* + * Copyright (C) 2009 Francisco Jerez. + * All Rights Reserved. + * + * 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 (including the + * next paragraph) 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 OWNER(S) AND/OR ITS SUPPLIERS 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. + * + */ +#include "priv.h" + +static int +nv10_gpio_sense(struct nvkm_gpio *gpio, int line) +{ + struct nvkm_device *device = gpio->subdev.device; + if (line < 2) { + line = line * 16; + line = nvkm_rd32(device, 0x600818) >> line; + return !!(line & 0x0100); + } else + if (line < 10) { + line = (line - 2) * 4; + line = nvkm_rd32(device, 0x60081c) >> line; + return !!(line & 0x04); + } else + if (line < 14) { + line = (line - 10) * 4; + line = nvkm_rd32(device, 0x600850) >> line; + return !!(line & 0x04); + } + + return -EINVAL; +} + +static int +nv10_gpio_drive(struct nvkm_gpio *gpio, int line, int dir, int out) +{ + struct nvkm_device *device = gpio->subdev.device; + u32 reg, mask, data; + + if (line < 2) { + line = line * 16; + reg = 0x600818; + mask = 0x00000011; + data = (dir << 4) | out; + } else + if (line < 10) { + line = (line - 2) * 4; + reg = 0x60081c; + mask = 0x00000003; + data = (dir << 1) | out; + } else + if (line < 14) { + line = (line - 10) * 4; + reg = 0x600850; + mask = 0x00000003; + data = (dir << 1) | out; + } else { + return -EINVAL; + } + + nvkm_mask(device, reg, mask << line, data << line); + return 0; +} + +static void +nv10_gpio_intr_stat(struct nvkm_gpio *gpio, u32 *hi, u32 *lo) +{ + struct nvkm_device *device = gpio->subdev.device; + u32 intr = nvkm_rd32(device, 0x001104); + u32 stat = nvkm_rd32(device, 0x001144) & intr; + *lo = (stat & 0xffff0000) >> 16; + *hi = (stat & 0x0000ffff); + nvkm_wr32(device, 0x001104, intr); +} + +static void +nv10_gpio_intr_mask(struct nvkm_gpio *gpio, u32 type, u32 mask, u32 data) +{ + struct nvkm_device *device = gpio->subdev.device; + u32 inte = nvkm_rd32(device, 0x001144); + if (type & NVKM_GPIO_LO) + inte = (inte & ~(mask << 16)) | (data << 16); + if (type & NVKM_GPIO_HI) + inte = (inte & ~mask) | data; + nvkm_wr32(device, 0x001144, inte); +} + +static const struct nvkm_gpio_func +nv10_gpio = { + .lines = 16, + .intr_stat = nv10_gpio_intr_stat, + .intr_mask = nv10_gpio_intr_mask, + .drive = nv10_gpio_drive, + .sense = nv10_gpio_sense, +}; + +int +nv10_gpio_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_gpio **pgpio) +{ + return nvkm_gpio_new_(&nv10_gpio, device, type, inst, pgpio); +} |