From: Ben Skeggs Date: Fri, 7 Dec 2012 00:31:09 +0000 (+1000) Subject: drm/nouveau/bios: add support for parsing xpio table data X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=112a12aab8a5c1137a140c341f98a160e27b8c49;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git drm/nouveau/bios: add support for parsing xpio table data Signed-off-by: Ben Skeggs --- diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index ad586f0e351c..6985740afa19 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile @@ -40,6 +40,7 @@ nouveau-y += core/subdev/bios/mxm.o nouveau-y += core/subdev/bios/perf.o nouveau-y += core/subdev/bios/pll.o nouveau-y += core/subdev/bios/therm.o +nouveau-y += core/subdev/bios/xpio.o nouveau-y += core/subdev/bus/nv04.o nouveau-y += core/subdev/bus/nv31.o nouveau-y += core/subdev/bus/nv50.o diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h index e6563b5cb08e..94e540e10567 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h @@ -1,8 +1,6 @@ #ifndef __NVBIOS_GPIO_H__ #define __NVBIOS_GPIO_H__ -struct nouveau_bios; - enum dcb_gpio_func_name { DCB_GPIO_PANEL_POWER = 0x01, DCB_GPIO_TVDAC0 = 0x0c, diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/bios/xpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/bios/xpio.h new file mode 100644 index 000000000000..360baab52e4c --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/include/subdev/bios/xpio.h @@ -0,0 +1,19 @@ +#ifndef __NVBIOS_XPIO_H__ +#define __NVBIOS_XPIO_H__ + +#define NVBIOS_XPIO_FLAG_AUX 0x10 +#define NVBIOS_XPIO_FLAG_AUX0 0x00 +#define NVBIOS_XPIO_FLAG_AUX1 0x10 + +struct nvbios_xpio { + u8 type; + u8 addr; + u8 flags; +}; + +u16 dcb_xpio_table(struct nouveau_bios *, u8 idx, + u8 *ver, u8 *hdr, u8 *cnt, u8 *len); +u16 dcb_xpio_parse(struct nouveau_bios *, u8 idx, + u8 *ver, u8 *hdr, u8 *cnt, u8 *len, struct nvbios_xpio *); + +#endif diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/gpio.c b/drivers/gpu/drm/nouveau/core/subdev/bios/gpio.c index c84e93fa6d95..172a4f999990 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/bios/gpio.c +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/gpio.c @@ -25,6 +25,7 @@ #include #include #include +#include u16 dcb_gpio_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) @@ -60,8 +61,14 @@ dcb_gpio_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) u16 dcb_gpio_entry(struct nouveau_bios *bios, int idx, int ent, u8 *ver, u8 *len) { - u8 hdr, cnt; - u16 gpio = !idx ? dcb_gpio_table(bios, ver, &hdr, &cnt, len) : 0x0000; + u8 hdr, cnt, xver; /* use gpio version for xpio entry parsing */ + u16 gpio; + + if (!idx--) + gpio = dcb_gpio_table(bios, ver, &hdr, &cnt, len); + else + gpio = dcb_xpio_table(bios, idx, &xver, &hdr, &cnt, len); + if (gpio && ent < cnt) return gpio + hdr + (ent * *len); return 0x0000; diff --git a/drivers/gpu/drm/nouveau/core/subdev/bios/xpio.c b/drivers/gpu/drm/nouveau/core/subdev/bios/xpio.c new file mode 100644 index 000000000000..e9b8e5d30a7a --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/bios/xpio.c @@ -0,0 +1,76 @@ +/* + * 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 +#include +#include + +static u16 +dcb_xpiod_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len) +{ + u16 data = dcb_gpio_table(bios, ver, hdr, cnt, len); + if (data && *ver >= 0x40 && *hdr >= 0x06) { + u16 xpio = nv_ro16(bios, data + 0x04); + if (xpio) { + *ver = nv_ro08(bios, data + 0x00); + *hdr = nv_ro08(bios, data + 0x01); + *cnt = nv_ro08(bios, data + 0x02); + *len = nv_ro08(bios, data + 0x03); + return xpio; + } + } + return 0x0000; +} + +u16 +dcb_xpio_table(struct nouveau_bios *bios, u8 idx, + u8 *ver, u8 *hdr, u8 *cnt, u8 *len) +{ + u16 data = dcb_xpiod_table(bios, ver, hdr, cnt, len); + if (data && idx < *cnt) { + u16 xpio = nv_ro16(bios, data + *hdr + (idx * *len)); + if (xpio) { + *ver = nv_ro08(bios, data + 0x00); + *hdr = nv_ro08(bios, data + 0x01); + *cnt = nv_ro08(bios, data + 0x02); + *len = nv_ro08(bios, data + 0x03); + return xpio; + } + } + return 0x0000; +} + +u16 +dcb_xpio_parse(struct nouveau_bios *bios, u8 idx, + u8 *ver, u8 *hdr, u8 *cnt, u8 *len, + struct nvbios_xpio *info) +{ + u16 data = dcb_xpio_table(bios, idx, ver, hdr, cnt, len); + if (data && *len >= 6) { + info->type = nv_ro08(bios, data + 0x04); + info->addr = nv_ro08(bios, data + 0x05); + info->flags = nv_ro08(bios, data + 0x06); + } + return 0x0000; +}