diff options
Diffstat (limited to 'nvkm/subdev/gpio/nv50.c')
| -rw-r--r-- | nvkm/subdev/gpio/nv50.c | 129 |
1 files changed, 0 insertions, 129 deletions
diff --git a/nvkm/subdev/gpio/nv50.c b/nvkm/subdev/gpio/nv50.c deleted file mode 100644 index 2e30d5a62..000000000 --- a/nvkm/subdev/gpio/nv50.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * 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" - -void -nv50_gpio_reset(struct nouveau_gpio *gpio, u8 match) -{ - struct nouveau_bios *bios = nouveau_bios(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]; - u32 lsh = line & 0x0f; - - if ( func == DCB_GPIO_UNUSED || - (match != DCB_GPIO_UNUSED && match != func)) - continue; - - gpio->set(gpio, 0, func, line, defs); - - nv_mask(gpio, reg, 0x00010001 << lsh, val << lsh); - } -} - -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; -} - -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, 3 << shift, (((dir ^ 1) << 1) | out) << shift); - return 0; -} - -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)); -} - -static void -nv50_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo) -{ - u32 intr = nv_rd32(gpio, 0x00e054); - u32 stat = nv_rd32(gpio, 0x00e050) & intr; - *lo = (stat & 0xffff0000) >> 16; - *hi = (stat & 0x0000ffff); - nv_wr32(gpio, 0x00e054, intr); -} - -static void -nv50_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data) -{ - u32 inte = nv_rd32(gpio, 0x00e050); - if (type & NVKM_GPIO_LO) - inte = (inte & ~(mask << 16)) | (data << 16); - if (type & NVKM_GPIO_HI) - inte = (inte & ~mask) | data; - nv_wr32(gpio, 0x00e050, inte); -} - -struct nouveau_oclass * -nv50_gpio_oclass = &(struct nouveau_gpio_impl) { - .base.handle = NV_SUBDEV(GPIO, 0x50), - .base.ofuncs = &(struct nouveau_ofuncs) { - .ctor = _nouveau_gpio_ctor, - .dtor = _nouveau_gpio_dtor, - .init = _nouveau_gpio_init, - .fini = _nouveau_gpio_fini, - }, - .lines = 16, - .intr_stat = nv50_gpio_intr_stat, - .intr_mask = nv50_gpio_intr_mask, - .drive = nv50_gpio_drive, - .sense = nv50_gpio_sense, - .reset = nv50_gpio_reset, -}.base; |