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Commit d2bcea68 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/bios: update gpio parsing apis to match current design 



Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent caba5570

drivers/gpu/drm/nouveau/core/include/subdev/bios/gpio.h

+5 −3
Original line number Diff line number Diff line
@@ -25,9 +25,11 @@ struct dcb_gpio_func { 
	u8 param;

};



u16 dcb_gpio_table(struct nouveau_bios *);

u16 dcb_gpio_entry(struct nouveau_bios *, int idx, int ent, u8 *ver);

int dcb_gpio_parse(struct nouveau_bios *, int idx, u8 func, u8 line,

u16 dcb_gpio_table(struct nouveau_bios *, u8 *ver, u8 *hdr, u8 *cnt, u8 *len);

u16 dcb_gpio_entry(struct nouveau_bios *, int idx, int ent, u8 *ver, u8 *len);

u16 dcb_gpio_parse(struct nouveau_bios *, int idx, int ent, u8 *ver, u8 *len,

		   struct dcb_gpio_func *);

u16 dcb_gpio_match(struct nouveau_bios *, int idx, u8 func, u8 line,

		   u8 *ver, u8 *len, struct dcb_gpio_func *);



#endif

drivers/gpu/drm/nouveau/core/subdev/bios/gpio.c

+75 −53
Original line number Diff line number Diff line
@@ -27,84 +27,105 @@ 
#include <subdev/bios/gpio.h>



u16

dcb_gpio_table(struct nouveau_bios *bios)

dcb_gpio_table(struct nouveau_bios *bios, u8 *ver, u8 *hdr, u8 *cnt, u8 *len)

{

	u8  ver, hdr, cnt, len;

	u16 dcb = dcb_table(bios, &ver, &hdr, &cnt, &len);

	u16 data = 0x0000;

	u16 dcb = dcb_table(bios, ver, hdr, cnt, len);

	if (dcb) {

		if (ver >= 0x30 && hdr >= 0x0c)

			return nv_ro16(bios, dcb + 0x0a);

		if (ver >= 0x22 && nv_ro08(bios, dcb - 1) >= 0x13)

			return nv_ro16(bios, dcb - 0x0f);

		if (*ver >= 0x30 && *hdr >= 0x0c)

			data = nv_ro16(bios, dcb + 0x0a);

		else

		if (*ver >= 0x22 && nv_ro08(bios, dcb - 1) >= 0x13)

			data = nv_ro16(bios, dcb - 0x0f);



		if (data) {

			*ver = nv_ro08(bios, data + 0x00);

			if (*ver < 0x30) {

				*hdr = 3;

				*cnt = nv_ro08(bios, data + 0x02);

				*len = nv_ro08(bios, data + 0x01);

			} else

			if (*ver <= 0x41) {

				*hdr = nv_ro08(bios, data + 0x01);

				*cnt = nv_ro08(bios, data + 0x02);

				*len = nv_ro08(bios, data + 0x03);

			} else {

				data = 0x0000;

			}

	return 0x0000;

		}

	}

	return data;

}



u16

dcb_gpio_entry(struct nouveau_bios *bios, int idx, int ent, u8 *ver)

dcb_gpio_entry(struct nouveau_bios *bios, int idx, int ent, u8 *ver, u8 *len)

{

	u16 gpio = dcb_gpio_table(bios);

	if (gpio) {

		*ver = nv_ro08(bios, gpio);

		if (*ver < 0x30 && ent < nv_ro08(bios, gpio + 2))

			return gpio + 3 + (ent * nv_ro08(bios, gpio + 1));

		else if (ent < nv_ro08(bios, gpio + 2))

			return gpio + nv_ro08(bios, gpio + 1) +

			       (ent * nv_ro08(bios, gpio + 3));

	}

	u8  hdr, cnt;

	u16 gpio = !idx ? dcb_gpio_table(bios, ver, &hdr, &cnt, len) : 0x0000;

	if (gpio && ent < cnt)

		return gpio + hdr + (ent * *len);

	return 0x0000;

}



int

dcb_gpio_parse(struct nouveau_bios *bios, int idx, u8 func, u8 line,

u16

dcb_gpio_parse(struct nouveau_bios *bios, int idx, int ent, u8 *ver, u8 *len,

	       struct dcb_gpio_func *gpio)

{

	u8  ver, hdr, cnt, len;

	u16 entry;

	int i = -1;



	while ((entry = dcb_gpio_entry(bios, idx, ++i, &ver))) {

		if (ver < 0x40) {

			u16 data = nv_ro16(bios, entry);

	u16 data = dcb_gpio_entry(bios, idx, ent, ver, len);

	if (data) {

		if (*ver < 0x40) {

			u16 info = nv_ro16(bios, data);

			*gpio = (struct dcb_gpio_func) {

				.line = (data & 0x001f) >> 0,

				.func = (data & 0x07e0) >> 5,

				.log[0] = (data & 0x1800) >> 11,

				.log[1] = (data & 0x6000) >> 13,

				.param = !!(data & 0x8000),

				.line = (info & 0x001f) >> 0,

				.func = (info & 0x07e0) >> 5,

				.log[0] = (info & 0x1800) >> 11,

				.log[1] = (info & 0x6000) >> 13,

				.param = !!(info & 0x8000),

			};

		} else

		if (ver < 0x41) {

			u32 data = nv_ro32(bios, entry);

		if (*ver < 0x41) {

			u32 info = nv_ro32(bios, data);

			*gpio = (struct dcb_gpio_func) {

				.line = (data & 0x0000001f) >> 0,

				.func = (data & 0x0000ff00) >> 8,

				.log[0] = (data & 0x18000000) >> 27,

				.log[1] = (data & 0x60000000) >> 29,

				.param = !!(data & 0x80000000),

				.line = (info & 0x0000001f) >> 0,

				.func = (info & 0x0000ff00) >> 8,

				.log[0] = (info & 0x18000000) >> 27,

				.log[1] = (info & 0x60000000) >> 29,

				.param = !!(info & 0x80000000),

			};

		} else {

			u32 data = nv_ro32(bios, entry + 0);

			u8 data1 = nv_ro32(bios, entry + 4);

			u32 info = nv_ro32(bios, data + 0);

			u8 info1 = nv_ro32(bios, data + 4);

			*gpio = (struct dcb_gpio_func) {

				.line = (data & 0x0000003f) >> 0,

				.func = (data & 0x0000ff00) >> 8,

				.log[0] = (data1 & 0x30) >> 4,

				.log[1] = (data1 & 0xc0) >> 6,

				.param = !!(data & 0x80000000),

				.line = (info & 0x0000003f) >> 0,

				.func = (info & 0x0000ff00) >> 8,

				.log[0] = (info1 & 0x30) >> 4,

				.log[1] = (info1 & 0xc0) >> 6,

				.param = !!(info & 0x80000000),

			};

		}

	}



	return data;

}



u16

dcb_gpio_match(struct nouveau_bios *bios, int idx, u8 func, u8 line,

	       u8 *ver, u8 *len, struct dcb_gpio_func *gpio)

{

	u8  hdr, cnt, i = 0;

	u16 data;



	while ((data = dcb_gpio_parse(bios, idx, i++, ver, len, gpio))) {

		if ((line == 0xff || line == gpio->line) &&

		    (func == 0xff || func == gpio->func))

			return 0;

			return data;

	}



	/* DCB 2.2, fixed TVDAC GPIO data */

	if ((entry = dcb_table(bios, &ver, &hdr, &cnt, &len))) {

		if (ver >= 0x22 && ver < 0x30 && func == DCB_GPIO_TVDAC0) {

			u8 conf = nv_ro08(bios, entry - 5);

			u8 addr = nv_ro08(bios, entry - 4);

	if ((data = dcb_table(bios, ver, &hdr, &cnt, len))) {

		if (*ver >= 0x22 && *ver < 0x30 && func == DCB_GPIO_TVDAC0) {

			u8 conf = nv_ro08(bios, data - 5);

			u8 addr = nv_ro08(bios, data - 4);

			if (conf & 0x01) {

				*gpio = (struct dcb_gpio_func) {

					.func = DCB_GPIO_TVDAC0,
@@ -112,10 +133,11 @@ dcb_gpio_parse(struct nouveau_bios *bios, int idx, u8 func, u8 line, 
					.log[0] = !!(conf & 0x02),

					.log[1] =  !(conf & 0x02),

				};

				return 0;

				*ver = 0x00;

				return data;

			}

		}

	}



	return -EINVAL;

	return 0x0000;

}

drivers/gpu/drm/nouveau/core/subdev/gpio/base.c

+6 −1
Original line number Diff line number Diff line
@@ -43,10 +43,15 @@ 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;



	if (!dcb_gpio_parse(nouveau_bios(gpio), idx, tag, line, func))

	data = dcb_gpio_match(bios, idx, tag, line, &ver, &len, func);

	if (data)

		return 0;



	/* Apple iMac G4 NV18 */

drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c

+2 −2
Original line number Diff line number Diff line
@@ -33,11 +33,11 @@ nv50_gpio_reset(struct nouveau_gpio *gpio) 
{

	struct nouveau_bios *bios = nouveau_bios(gpio);

	struct nv50_gpio_priv *priv = (void *)gpio;

	u8 ver, len;

	u16 entry;

	u8 ver;

	int ent = -1;



	while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver))) {

	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);

drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c

+2 −2
Original line number Diff line number Diff line
@@ -33,11 +33,11 @@ nvd0_gpio_reset(struct nouveau_gpio *gpio) 
{

	struct nouveau_bios *bios = nouveau_bios(gpio);

	struct nvd0_gpio_priv *priv = (void *)gpio;

	u8 ver, len;

	u16 entry;

	u8 ver;

	int ent = -1;



	while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver))) {

	while ((entry = dcb_gpio_entry(bios, 0, ++ent, &ver, &len))) {

		u32 data = nv_ro32(bios, entry);

		u8  line =   (data & 0x0000003f);

		u8  defs = !!(data & 0x00000080);