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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/gpu/drm/nouveau/nvkm/subdev/gpio/nv10.c
parentInitial commit. (diff)
downloadlinux-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.c119
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);
+}