Commit 5693c0f2 authored by Ben Skeggs's avatar Ben Skeggs
Browse files

drm/nouveau/gpio: split "toggled" interrupt into "went high" / "went low"


Signed-off-by: default avatarBen Skeggs <bskeggs@redhat.com>
parent 7356859a
......@@ -103,6 +103,37 @@ nouveau_gpio_get(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line)
return ret;
}
static void
nouveau_gpio_intr_disable(struct nouveau_event *event, int type, int index)
{
struct nouveau_gpio *gpio = nouveau_gpio(event->priv);
const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass;
impl->intr_mask(gpio, NVKM_GPIO_TOGGLED, 1 << index, 0);
}
static void
nouveau_gpio_intr_enable(struct nouveau_event *event, int type, int index)
{
struct nouveau_gpio *gpio = nouveau_gpio(event->priv);
const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass;
impl->intr_mask(gpio, NVKM_GPIO_TOGGLED, 1 << index, 1 << index);
}
static void
nouveau_gpio_intr(struct nouveau_subdev *subdev)
{
struct nouveau_gpio *gpio = nouveau_gpio(subdev);
const struct nouveau_gpio_impl *impl = (void *)nv_object(gpio)->oclass;
u32 hi, lo, i;
impl->intr_stat(gpio, &hi, &lo);
for (i = 0; (hi | lo) && i < impl->lines; i++) {
if ((hi | lo) & (1 << i))
nouveau_event_trigger(gpio->events, 1, i);
}
}
void
_nouveau_gpio_dtor(struct nouveau_object *object)
{
......@@ -127,13 +158,18 @@ nouveau_gpio_create_(struct nouveau_object *parent,
if (ret)
return ret;
gpio->find = nouveau_gpio_find;
gpio->set = nouveau_gpio_set;
gpio->get = nouveau_gpio_get;
ret = nouveau_event_create(1, impl->lines, &gpio->events);
if (ret)
return ret;
gpio->find = nouveau_gpio_find;
gpio->set = nouveau_gpio_set;
gpio->get = nouveau_gpio_get;
gpio->events->priv = gpio;
gpio->events->enable = nouveau_gpio_intr_enable;
gpio->events->disable = nouveau_gpio_intr_disable;
nv_subdev(gpio)->intr = nouveau_gpio_intr;
return 0;
}
......
......@@ -83,34 +83,24 @@ nv10_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out)
}
static void
nv10_gpio_intr(struct nouveau_subdev *subdev)
nv10_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo)
{
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, 1, 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);
u32 intr = nv_rd32(gpio, 0x001104);
u32 stat = nv_rd32(gpio, 0x001144) & intr;
*lo = (stat & 0xffff0000) >> 16;
*hi = (stat & 0x0000ffff);
nv_wr32(gpio, 0x001104, intr);
}
static void
nv10_gpio_intr_disable(struct nouveau_event *event, int line)
nv10_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data)
{
nv_wr32(event->priv, 0x001104, 0x00010001 << line);
nv_mask(event->priv, 0x001144, 0x00010001 << line, 0x00000000);
u32 inte = nv_rd32(gpio, 0x001144);
if (type & NVKM_GPIO_LO)
inte = (inte & ~(mask << 16)) | (data << 16);
if (type & NVKM_GPIO_HI)
inte = (inte & ~mask) | data;
nv_wr32(gpio, 0x001144, inte);
}
static int
......@@ -128,10 +118,6 @@ nv10_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
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;
}
......@@ -175,4 +161,6 @@ nv10_gpio_oclass = &(struct nouveau_gpio_impl) {
.fini = nv10_gpio_fini,
},
.lines = 16,
.intr_stat = nv10_gpio_intr_stat,
.intr_mask = nv10_gpio_intr_mask,
}.base;
......@@ -95,47 +95,25 @@ nv50_gpio_sense(struct nouveau_gpio *gpio, int line)
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 > 0x92)
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, 1, i);
}
nv_wr32(priv, 0xe054, intr0);
if (nv_device(priv)->chipset > 0x92)
nv_wr32(priv, 0xe074, intr1);
}
void
nv50_gpio_intr_enable(struct nouveau_event *event, int line)
static void
nv50_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo)
{
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);
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);
}
void
nv50_gpio_intr_disable(struct nouveau_event *event, int line)
static void
nv50_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data)
{
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);
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);
}
int
......@@ -154,10 +132,6 @@ nv50_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
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;
}
......@@ -208,5 +182,7 @@ nv50_gpio_oclass = &(struct nouveau_gpio_impl) {
.init = nv50_gpio_init,
.fini = nv50_gpio_fini,
},
.lines = 16.
.lines = 16,
.intr_stat = nv50_gpio_intr_stat,
.intr_mask = nv50_gpio_intr_mask,
}.base;
......@@ -24,6 +24,38 @@
#include "priv.h"
void
nv92_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo)
{
u32 intr0 = nv_rd32(gpio, 0x00e054);
u32 intr1 = nv_rd32(gpio, 0x00e074);
u32 stat0 = nv_rd32(gpio, 0x00e050) & intr0;
u32 stat1 = nv_rd32(gpio, 0x00e070) & intr1;
*lo = (stat1 & 0xffff0000) | (stat0 >> 16);
*hi = (stat1 << 16) | (stat0 & 0x0000ffff);
nv_wr32(gpio, 0x00e054, intr0);
nv_wr32(gpio, 0x00e074, intr1);
}
void
nv92_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data)
{
u32 inte0 = nv_rd32(gpio, 0x00e050);
u32 inte1 = nv_rd32(gpio, 0x00e070);
if (type & NVKM_GPIO_LO)
inte0 = (inte0 & ~(mask << 16)) | (data << 16);
if (type & NVKM_GPIO_HI)
inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);
mask >>= 16;
data >>= 16;
if (type & NVKM_GPIO_LO)
inte1 = (inte1 & ~(mask << 16)) | (data << 16);
if (type & NVKM_GPIO_HI)
inte1 = (inte1 & ~mask) | data;
nv_wr32(gpio, 0x00e050, inte0);
nv_wr32(gpio, 0x00e070, inte1);
}
struct nouveau_oclass *
nv92_gpio_oclass = &(struct nouveau_gpio_impl) {
.base.handle = NV_SUBDEV(GPIO, 0x92),
......@@ -33,5 +65,7 @@ nv92_gpio_oclass = &(struct nouveau_gpio_impl) {
.init = nv50_gpio_init,
.fini = nv50_gpio_fini,
},
.lines = 32.
.lines = 32,
.intr_stat = nv92_gpio_intr_stat,
.intr_mask = nv92_gpio_intr_mask,
}.base;
......@@ -88,10 +88,6 @@ nvd0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
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;
}
......@@ -105,4 +101,6 @@ nvd0_gpio_oclass = &(struct nouveau_gpio_impl) {
.fini = nv50_gpio_fini,
},
.lines = 32,
.intr_stat = nv92_gpio_intr_stat,
.intr_mask = nv92_gpio_intr_mask,
}.base;
......@@ -28,41 +28,36 @@ 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, 1, i);
}
nv_wr32(priv, 0xdc00, intr0);
nv_wr32(priv, 0xdc80, intr1);
}
void
nve0_gpio_intr_enable(struct nouveau_event *event, int line)
static void
nve0_gpio_intr_stat(struct nouveau_gpio *gpio, u32 *hi, u32 *lo)
{
const u32 addr = line < 16 ? 0xdc00 : 0xdc80;
const u32 mask = 0x00010001 << (line & 0xf);
nv_wr32(event->priv, addr + 0x00, mask);
nv_mask(event->priv, addr + 0x08, mask, mask);
u32 intr0 = nv_rd32(gpio, 0x00dc00);
u32 intr1 = nv_rd32(gpio, 0x00dc80);
u32 stat0 = nv_rd32(gpio, 0x00dc08) & intr0;
u32 stat1 = nv_rd32(gpio, 0x00dc88) & intr1;
*lo = (stat1 & 0xffff0000) | (stat0 >> 16);
*hi = (stat1 << 16) | (stat0 & 0x0000ffff);
nv_wr32(gpio, 0x00dc00, intr0);
nv_wr32(gpio, 0x00dc80, intr1);
}
void
nve0_gpio_intr_disable(struct nouveau_event *event, int line)
nve0_gpio_intr_mask(struct nouveau_gpio *gpio, u32 type, u32 mask, u32 data)
{
const u32 addr = line < 16 ? 0xdc00 : 0xdc80;
const u32 mask = 0x00010001 << (line & 0xf);
nv_mask(event->priv, addr + 0x08, mask, 0x00000000);
nv_wr32(event->priv, addr + 0x00, mask);
u32 inte0 = nv_rd32(gpio, 0x00dc08);
u32 inte1 = nv_rd32(gpio, 0x00dc88);
if (type & NVKM_GPIO_LO)
inte0 = (inte0 & ~(mask << 16)) | (data << 16);
if (type & NVKM_GPIO_HI)
inte0 = (inte0 & ~(mask & 0xffff)) | (data & 0xffff);
mask >>= 16;
data >>= 16;
if (type & NVKM_GPIO_LO)
inte1 = (inte1 & ~(mask << 16)) | (data << 16);
if (type & NVKM_GPIO_HI)
inte1 = (inte1 & ~mask) | data;
nv_wr32(gpio, 0x00dc08, inte0);
nv_wr32(gpio, 0x00dc88, inte1);
}
int
......@@ -112,10 +107,6 @@ nve0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
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;
}
......@@ -129,4 +120,6 @@ nve0_gpio_oclass = &(struct nouveau_gpio_impl) {
.fini = nve0_gpio_fini,
},
.lines = 32,
.intr_stat = nve0_gpio_intr_stat,
.intr_mask = nve0_gpio_intr_mask,
}.base;
......@@ -23,18 +23,35 @@ int nv50_gpio_ctor(struct nouveau_object *, struct nouveau_object *,
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);
enum nvkm_gpio_event {
NVKM_GPIO_HI = 1,
NVKM_GPIO_LO = 2,
NVKM_GPIO_TOGGLED = (NVKM_GPIO_HI | NVKM_GPIO_LO),
};
struct nouveau_gpio_impl {
struct nouveau_oclass base;
int lines;
/* read and ack pending interrupts, returning only data
* for lines that have not been masked off, while still
* performing the ack for anything that was pending.
*/
void (*intr_stat)(struct nouveau_gpio *, u32 *, u32 *);
/* mask on/off interrupts for hi/lo transitions on a
* given set of gpio lines
*/
void (*intr_mask)(struct nouveau_gpio *, u32, u32, u32);
};
void nv92_gpio_intr_stat(struct nouveau_gpio *, u32 *, u32 *);
void nv92_gpio_intr_mask(struct nouveau_gpio *, u32, u32, u32);
#endif
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