diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nv50_gpio.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nv50_gpio.c | 139 |
1 files changed, 0 insertions, 139 deletions
diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c deleted file mode 100644 index f429e6a8ca7a..000000000000 --- a/drivers/gpu/drm/nouveau/nv50_gpio.c +++ /dev/null @@ -1,139 +0,0 @@ -/* - * Copyright 2010 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 "drmP.h" -#include "nouveau_drv.h" -#include "nouveau_hw.h" -#include "nouveau_gpio.h" - -#include "nv50_display.h" - -static int -nv50_gpio_location(int line, u32 *reg, u32 *shift) -{ - const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 }; - - if (line >= 32) - return -EINVAL; - - *reg = nv50_gpio_reg[line >> 3]; - *shift = (line & 7) << 2; - return 0; -} - -int -nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out) -{ - u32 reg, shift; - - if (nv50_gpio_location(line, ®, &shift)) - return -EINVAL; - - nv_mask(dev, reg, 7 << shift, (((dir ^ 1) << 1) | out) << shift); - return 0; -} - -int -nv50_gpio_sense(struct drm_device *dev, int line) -{ - u32 reg, shift; - - if (nv50_gpio_location(line, ®, &shift)) - return -EINVAL; - - return !!(nv_rd32(dev, reg) & (4 << shift)); -} - -void -nv50_gpio_irq_enable(struct drm_device *dev, int line, bool on) -{ - u32 reg = line < 16 ? 0xe050 : 0xe070; - u32 mask = 0x00010001 << (line & 0xf); - - nv_wr32(dev, reg + 4, mask); - nv_mask(dev, reg + 0, mask, on ? mask : 0); -} - -int -nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out) -{ - u32 data = ((dir ^ 1) << 13) | (out << 12); - nv_mask(dev, 0x00d610 + (line * 4), 0x00003000, data); - nv_mask(dev, 0x00d604, 0x00000001, 0x00000001); /* update? */ - return 0; -} - -int -nvd0_gpio_sense(struct drm_device *dev, int line) -{ - return !!(nv_rd32(dev, 0x00d610 + (line * 4)) & 0x00004000); -} - -static void -nv50_gpio_isr(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - u32 intr0, intr1 = 0; - u32 hi, lo; - - intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050); - if (dev_priv->chipset >= 0x90) - intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070); - - hi = (intr0 & 0x0000ffff) | (intr1 << 16); - lo = (intr0 >> 16) | (intr1 & 0xffff0000); - nouveau_gpio_isr(dev, 0, hi | lo); - - nv_wr32(dev, 0xe054, intr0); - if (dev_priv->chipset >= 0x90) - nv_wr32(dev, 0xe074, intr1); -} - -int -nv50_gpio_init(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - /* disable, and ack any pending gpio interrupts */ - nv_wr32(dev, 0xe050, 0x00000000); - nv_wr32(dev, 0xe054, 0xffffffff); - if (dev_priv->chipset >= 0x90) { - nv_wr32(dev, 0xe070, 0x00000000); - nv_wr32(dev, 0xe074, 0xffffffff); - } - - nouveau_irq_register(dev, 21, nv50_gpio_isr); - return 0; -} - -void -nv50_gpio_fini(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - - nv_wr32(dev, 0xe050, 0x00000000); - if (dev_priv->chipset >= 0x90) - nv_wr32(dev, 0xe070, 0x00000000); - nouveau_irq_unregister(dev, 21); -} |