diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/gpio')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/base.c | 158 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c | 177 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c | 212 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c | 107 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c | 131 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h | 17 |
6 files changed, 802 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c new file mode 100644 index 00000000..d422acc9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c @@ -0,0 +1,158 @@ +/* + * Copyright 2011 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 <subdev/gpio.h> +#include <subdev/bios.h> +#include <subdev/bios/gpio.h> + +static int +nouveau_gpio_drive(struct nouveau_gpio *gpio, + int idx, int line, int dir, int out) +{ + return gpio->drive ? gpio->drive(gpio, line, dir, out) : -ENODEV; +} + +static int +nouveau_gpio_sense(struct nouveau_gpio *gpio, int idx, int line) +{ + return gpio->sense ? gpio->sense(gpio, line) : -ENODEV; +} + +static int +nouveau_gpio_find(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, + struct dcb_gpio_func *func) +{ + struct nouveau_bios *bios = nouveau_bios(gpio); + u8 ver, len; + u16 data; + + if (line == 0xff && tag == 0xff) + return -EINVAL; + + data = dcb_gpio_match(bios, idx, tag, line, &ver, &len, func); + if (data) + return 0; + + /* Apple iMac G4 NV18 */ + if (nv_device_match(nv_object(gpio), 0x0189, 0x10de, 0x0010)) { + if (tag == DCB_GPIO_TVDAC0) { + *func = (struct dcb_gpio_func) { + .func = DCB_GPIO_TVDAC0, + .line = 4, + .log[0] = 0, + .log[1] = 1, + }; + return 0; + } + } + + return -EINVAL; +} + +static int +nouveau_gpio_set(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, int state) +{ + struct dcb_gpio_func func; + int ret; + + ret = nouveau_gpio_find(gpio, idx, tag, line, &func); + if (ret == 0) { + int dir = !!(func.log[state] & 0x02); + int out = !!(func.log[state] & 0x01); + ret = nouveau_gpio_drive(gpio, idx, func.line, dir, out); + } + + return ret; +} + +static int +nouveau_gpio_get(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line) +{ + struct dcb_gpio_func func; + int ret; + + ret = nouveau_gpio_find(gpio, idx, tag, line, &func); + if (ret == 0) { + ret = nouveau_gpio_sense(gpio, idx, func.line); + if (ret >= 0) + ret = (ret == (func.log[1] & 1)); + } + + return ret; +} + +void +_nouveau_gpio_dtor(struct nouveau_object *object) +{ + struct nouveau_gpio *gpio = (void *)object; + nouveau_event_destroy(&gpio->events); + nouveau_subdev_destroy(&gpio->base); +} + +int +nouveau_gpio_create_(struct nouveau_object *parent, + struct nouveau_object *engine, + struct nouveau_oclass *oclass, int lines, + int length, void **pobject) +{ + struct nouveau_gpio *gpio; + int ret; + + ret = nouveau_subdev_create_(parent, engine, oclass, 0, "GPIO", "gpio", + length, pobject); + gpio = *pobject; + if (ret) + return ret; + + ret = nouveau_event_create(lines, &gpio->events); + if (ret) + return ret; + + gpio->find = nouveau_gpio_find; + gpio->set = nouveau_gpio_set; + gpio->get = nouveau_gpio_get; + return 0; +} + +static struct dmi_system_id gpio_reset_ids[] = { + { + .ident = "Apple Macbook 10,1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Apple Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro10,1"), + } + }, + { } +}; + +int +nouveau_gpio_init(struct nouveau_gpio *gpio) +{ + int ret = nouveau_subdev_init(&gpio->base); + if (ret == 0 && gpio->reset) { + if (dmi_check_system(gpio_reset_ids)) + gpio->reset(gpio, DCB_GPIO_UNUSED); + } + return ret; +} diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c new file mode 100644 index 00000000..76d5d546 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c @@ -0,0 +1,177 @@ +/* + * 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" + +struct nv10_gpio_priv { + struct nouveau_gpio base; +}; + +static int +nv10_gpio_sense(struct nouveau_gpio *gpio, int line) +{ + if (line < 2) { + line = line * 16; + line = nv_rd32(gpio, 0x600818) >> line; + return !!(line & 0x0100); + } else + if (line < 10) { + line = (line - 2) * 4; + line = nv_rd32(gpio, 0x60081c) >> line; + return !!(line & 0x04); + } else + if (line < 14) { + line = (line - 10) * 4; + line = nv_rd32(gpio, 0x600850) >> line; + return !!(line & 0x04); + } + + return -EINVAL; +} + +static int +nv10_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) +{ + 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; + } + + nv_mask(gpio, reg, mask << line, data << line); + return 0; +} + +static void +nv10_gpio_intr(struct nouveau_subdev *subdev) +{ + struct nv10_gpio_priv *priv = (void *)subdev; + u32 intr = nv_rd32(priv, 0x001104); + u32 hi = (intr & 0x0000ffff) >> 0; + u32 lo = (intr & 0xffff0000) >> 16; + int i; + + for (i = 0; (hi | lo) && i < 32; i++) { + if ((hi | lo) & (1 << i)) + nouveau_event_trigger(priv->base.events, i); + } + + nv_wr32(priv, 0x001104, intr); +} + +static void +nv10_gpio_intr_enable(struct nouveau_event *event, int line) +{ + nv_wr32(event->priv, 0x001104, 0x00010001 << line); + nv_mask(event->priv, 0x001144, 0x00010001 << line, 0x00010001 << line); +} + +static void +nv10_gpio_intr_disable(struct nouveau_event *event, int line) +{ + nv_wr32(event->priv, 0x001104, 0x00010001 << line); + nv_mask(event->priv, 0x001144, 0x00010001 << line, 0x00000000); +} + +static int +nv10_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nv10_gpio_priv *priv; + int ret; + + ret = nouveau_gpio_create(parent, engine, oclass, 16, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.drive = nv10_gpio_drive; + priv->base.sense = nv10_gpio_sense; + priv->base.events->priv = priv; + priv->base.events->enable = nv10_gpio_intr_enable; + priv->base.events->disable = nv10_gpio_intr_disable; + nv_subdev(priv)->intr = nv10_gpio_intr; + return 0; +} + +static void +nv10_gpio_dtor(struct nouveau_object *object) +{ + struct nv10_gpio_priv *priv = (void *)object; + nouveau_gpio_destroy(&priv->base); +} + +static int +nv10_gpio_init(struct nouveau_object *object) +{ + struct nv10_gpio_priv *priv = (void *)object; + int ret; + + ret = nouveau_gpio_init(&priv->base); + if (ret) + return ret; + + nv_wr32(priv, 0x001144, 0x00000000); + nv_wr32(priv, 0x001104, 0xffffffff); + return 0; +} + +static int +nv10_gpio_fini(struct nouveau_object *object, bool suspend) +{ + struct nv10_gpio_priv *priv = (void *)object; + nv_wr32(priv, 0x001144, 0x00000000); + return nouveau_gpio_fini(&priv->base, suspend); +} + +struct nouveau_oclass +nv10_gpio_oclass = { + .handle = NV_SUBDEV(GPIO, 0x10), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nv10_gpio_ctor, + .dtor = nv10_gpio_dtor, + .init = nv10_gpio_init, + .fini = nv10_gpio_fini, + }, +}; diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c new file mode 100644 index 00000000..bf489dcf --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c @@ -0,0 +1,212 @@ +/* + * 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" + +struct nv50_gpio_priv { + struct nouveau_gpio base; +}; + +static void +nv50_gpio_reset(struct nouveau_gpio *gpio, u8 match) +{ + struct nouveau_bios *bios = nouveau_bios(gpio); + struct nv50_gpio_priv *priv = (void *)gpio; + u8 ver, len; + u16 entry; + int ent = -1; + + while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver, &len))) { + static const u32 regs[] = { 0xe100, 0xe28c }; + u32 data = nv_ro32(bios, entry); + u8 line = (data & 0x0000001f); + u8 func = (data & 0x0000ff00) >> 8; + u8 defs = !!(data & 0x01000000); + u8 unk0 = !!(data & 0x02000000); + u8 unk1 = !!(data & 0x04000000); + u32 val = (unk1 << 16) | unk0; + u32 reg = regs[line >> 4]; line &= 0x0f; + + if ( func == DCB_GPIO_UNUSED || + (match != DCB_GPIO_UNUSED && match != func)) + continue; + + gpio->set(gpio, 0, func, line, defs); + + nv_mask(priv, reg, 0x00010001 << line, val << line); + } +} + +static int +nv50_gpio_location(int line, u32 *reg, u32 *shift) +{ + const u32 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; +} + +static int +nv50_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) +{ + u32 reg, shift; + + if (nv50_gpio_location(line, ®, &shift)) + return -EINVAL; + + nv_mask(gpio, reg, 7 << shift, (((dir ^ 1) << 1) | out) << shift); + return 0; +} + +static int +nv50_gpio_sense(struct nouveau_gpio *gpio, int line) +{ + u32 reg, shift; + + if (nv50_gpio_location(line, ®, &shift)) + return -EINVAL; + + return !!(nv_rd32(gpio, reg) & (4 << shift)); +} + +void +nv50_gpio_intr(struct nouveau_subdev *subdev) +{ + struct nv50_gpio_priv *priv = (void *)subdev; + u32 intr0, intr1 = 0; + u32 hi, lo; + int i; + + intr0 = nv_rd32(priv, 0xe054) & nv_rd32(priv, 0xe050); + if (nv_device(priv)->chipset >= 0x90) + intr1 = nv_rd32(priv, 0xe074) & nv_rd32(priv, 0xe070); + + hi = (intr0 & 0x0000ffff) | (intr1 << 16); + lo = (intr0 >> 16) | (intr1 & 0xffff0000); + + for (i = 0; (hi | lo) && i < 32; i++) { + if ((hi | lo) & (1 << i)) + nouveau_event_trigger(priv->base.events, i); + } + + nv_wr32(priv, 0xe054, intr0); + if (nv_device(priv)->chipset >= 0x90) + nv_wr32(priv, 0xe074, intr1); +} + +void +nv50_gpio_intr_enable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xe050 : 0xe070; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x04, mask); + nv_mask(event->priv, addr + 0x00, mask, mask); +} + +void +nv50_gpio_intr_disable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xe050 : 0xe070; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x04, mask); + nv_mask(event->priv, addr + 0x00, mask, 0x00000000); +} + +static int +nv50_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nv50_gpio_priv *priv; + int ret; + + ret = nouveau_gpio_create(parent, engine, oclass, + nv_device(parent)->chipset >= 0x90 ? 32 : 16, + &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.reset = nv50_gpio_reset; + priv->base.drive = nv50_gpio_drive; + priv->base.sense = nv50_gpio_sense; + priv->base.events->priv = priv; + priv->base.events->enable = nv50_gpio_intr_enable; + priv->base.events->disable = nv50_gpio_intr_disable; + nv_subdev(priv)->intr = nv50_gpio_intr; + return 0; +} + +void +nv50_gpio_dtor(struct nouveau_object *object) +{ + struct nv50_gpio_priv *priv = (void *)object; + nouveau_gpio_destroy(&priv->base); +} + +int +nv50_gpio_init(struct nouveau_object *object) +{ + struct nv50_gpio_priv *priv = (void *)object; + int ret; + + ret = nouveau_gpio_init(&priv->base); + if (ret) + return ret; + + /* disable, and ack any pending gpio interrupts */ + nv_wr32(priv, 0xe050, 0x00000000); + nv_wr32(priv, 0xe054, 0xffffffff); + if (nv_device(priv)->chipset >= 0x90) { + nv_wr32(priv, 0xe070, 0x00000000); + nv_wr32(priv, 0xe074, 0xffffffff); + } + + return 0; +} + +int +nv50_gpio_fini(struct nouveau_object *object, bool suspend) +{ + struct nv50_gpio_priv *priv = (void *)object; + nv_wr32(priv, 0xe050, 0x00000000); + if (nv_device(priv)->chipset >= 0x90) + nv_wr32(priv, 0xe070, 0x00000000); + return nouveau_gpio_fini(&priv->base, suspend); +} + +struct nouveau_oclass +nv50_gpio_oclass = { + .handle = NV_SUBDEV(GPIO, 0x50), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nv50_gpio_ctor, + .dtor = nv50_gpio_dtor, + .init = nv50_gpio_init, + .fini = nv50_gpio_fini, + }, +}; diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c new file mode 100644 index 00000000..010431e3 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c @@ -0,0 +1,107 @@ +/* + * 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" + +struct nvd0_gpio_priv { + struct nouveau_gpio base; +}; + +void +nvd0_gpio_reset(struct nouveau_gpio *gpio, u8 match) +{ + struct nouveau_bios *bios = nouveau_bios(gpio); + struct nvd0_gpio_priv *priv = (void *)gpio; + u8 ver, len; + u16 entry; + int ent = -1; + + while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver, &len))) { + u32 data = nv_ro32(bios, entry); + u8 line = (data & 0x0000003f); + u8 defs = !!(data & 0x00000080); + u8 func = (data & 0x0000ff00) >> 8; + u8 unk0 = (data & 0x00ff0000) >> 16; + u8 unk1 = (data & 0x1f000000) >> 24; + + if ( func == DCB_GPIO_UNUSED || + (match != DCB_GPIO_UNUSED && match != func)) + continue; + + gpio->set(gpio, 0, func, line, defs); + + nv_mask(priv, 0x00d610 + (line * 4), 0xff, unk0); + if (unk1--) + nv_mask(priv, 0x00d740 + (unk1 * 4), 0xff, line); + } +} + +int +nvd0_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) +{ + u32 data = ((dir ^ 1) << 13) | (out << 12); + nv_mask(gpio, 0x00d610 + (line * 4), 0x00003000, data); + nv_mask(gpio, 0x00d604, 0x00000001, 0x00000001); /* update? */ + return 0; +} + +int +nvd0_gpio_sense(struct nouveau_gpio *gpio, int line) +{ + return !!(nv_rd32(gpio, 0x00d610 + (line * 4)) & 0x00004000); +} + +static int +nvd0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nvd0_gpio_priv *priv; + int ret; + + ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.reset = nvd0_gpio_reset; + priv->base.drive = nvd0_gpio_drive; + priv->base.sense = nvd0_gpio_sense; + priv->base.events->priv = priv; + priv->base.events->enable = nv50_gpio_intr_enable; + priv->base.events->disable = nv50_gpio_intr_disable; + nv_subdev(priv)->intr = nv50_gpio_intr; + return 0; +} + +struct nouveau_oclass +nvd0_gpio_oclass = { + .handle = NV_SUBDEV(GPIO, 0xd0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nvd0_gpio_ctor, + .dtor = nv50_gpio_dtor, + .init = nv50_gpio_init, + .fini = nv50_gpio_fini, + }, +}; diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c new file mode 100644 index 00000000..16b8c5bf --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c @@ -0,0 +1,131 @@ +/* + * 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" + +struct nve0_gpio_priv { + struct nouveau_gpio base; +}; + +void +nve0_gpio_intr(struct nouveau_subdev *subdev) +{ + struct nve0_gpio_priv *priv = (void *)subdev; + u32 intr0 = nv_rd32(priv, 0xdc00) & nv_rd32(priv, 0xdc08); + u32 intr1 = nv_rd32(priv, 0xdc80) & nv_rd32(priv, 0xdc88); + u32 hi = (intr0 & 0x0000ffff) | (intr1 << 16); + u32 lo = (intr0 >> 16) | (intr1 & 0xffff0000); + int i; + + for (i = 0; (hi | lo) && i < 32; i++) { + if ((hi | lo) & (1 << i)) + nouveau_event_trigger(priv->base.events, i); + } + + nv_wr32(priv, 0xdc00, intr0); + nv_wr32(priv, 0xdc88, intr1); +} + +void +nve0_gpio_intr_enable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xdc00 : 0xdc80; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x08, mask); + nv_mask(event->priv, addr + 0x00, mask, mask); +} + +void +nve0_gpio_intr_disable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xdc00 : 0xdc80; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x08, mask); + nv_mask(event->priv, addr + 0x00, mask, 0x00000000); +} + +int +nve0_gpio_fini(struct nouveau_object *object, bool suspend) +{ + struct nve0_gpio_priv *priv = (void *)object; + nv_wr32(priv, 0xdc08, 0x00000000); + nv_wr32(priv, 0xdc88, 0x00000000); + return nouveau_gpio_fini(&priv->base, suspend); +} + +int +nve0_gpio_init(struct nouveau_object *object) +{ + struct nve0_gpio_priv *priv = (void *)object; + int ret; + + ret = nouveau_gpio_init(&priv->base); + if (ret) + return ret; + + nv_wr32(priv, 0xdc00, 0xffffffff); + nv_wr32(priv, 0xdc80, 0xffffffff); + return 0; +} + +void +nve0_gpio_dtor(struct nouveau_object *object) +{ + struct nve0_gpio_priv *priv = (void *)object; + nouveau_gpio_destroy(&priv->base); +} + +static int +nve0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nve0_gpio_priv *priv; + int ret; + + ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.reset = nvd0_gpio_reset; + priv->base.drive = nvd0_gpio_drive; + priv->base.sense = nvd0_gpio_sense; + priv->base.events->priv = priv; + priv->base.events->enable = nve0_gpio_intr_enable; + priv->base.events->disable = nve0_gpio_intr_disable; + nv_subdev(priv)->intr = nve0_gpio_intr; + return 0; +} + +struct nouveau_oclass +nve0_gpio_oclass = { + .handle = NV_SUBDEV(GPIO, 0xe0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nve0_gpio_ctor, + .dtor = nv50_gpio_dtor, + .init = nve0_gpio_init, + .fini = nve0_gpio_fini, + }, +}; diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h new file mode 100644 index 00000000..2ee1c895 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h @@ -0,0 +1,17 @@ +#ifndef __NVKM_GPIO_H__ +#define __NVKM_GPIO_H__ + +#include <subdev/gpio.h> + +void nv50_gpio_dtor(struct nouveau_object *); +int nv50_gpio_init(struct nouveau_object *); +int nv50_gpio_fini(struct nouveau_object *, bool); +void nv50_gpio_intr(struct nouveau_subdev *); +void nv50_gpio_intr_enable(struct nouveau_event *, int line); +void nv50_gpio_intr_disable(struct nouveau_event *, int line); + +void nvd0_gpio_reset(struct nouveau_gpio *, u8); +int nvd0_gpio_drive(struct nouveau_gpio *, int, int, int); +int nvd0_gpio_sense(struct nouveau_gpio *, int); + +#endif |