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-rw-r--r--drivers/gpu/drm/nouveau/nouveau_dp.c6
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_i2c.c230
-rw-r--r--drivers/gpu/drm/nouveau/nouveau_i2c.h6
3 files changed, 94 insertions, 148 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
index 5722fd55764..07bac360245 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -578,7 +578,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
dp.dcb = nv_encoder->dcb;
dp.crtc = nv_crtc->index;
- dp.auxch = auxch->rd;
+ dp.auxch = auxch->drive;
dp.or = nv_encoder->or;
dp.link = !(nv_encoder->dcb->sorconf.link & 1);
dp.dpcd = nv_encoder->dp.dpcd;
@@ -653,7 +653,7 @@ nouveau_dp_detect(struct drm_encoder *encoder)
if (!auxch)
return false;
- ret = auxch_tx(dev, auxch->rd, 9, DP_DPCD_REV, dpcd, 8);
+ ret = auxch_tx(dev, auxch->drive, 9, DP_DPCD_REV, dpcd, 8);
if (ret)
return false;
@@ -681,7 +681,7 @@ int
nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
uint8_t *data, int data_nr)
{
- return auxch_tx(auxch->dev, auxch->rd, cmd, addr, data, data_nr);
+ return auxch_tx(auxch->dev, auxch->drive, cmd, addr, data, data_nr);
}
static int
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.c b/drivers/gpu/drm/nouveau/nouveau_i2c.c
index 36ffcb84f55..d0d581440d5 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.c
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.c
@@ -30,132 +30,83 @@
#include "nouveau_hw.h"
static void
-nv04_i2c_setscl(void *data, int state)
+i2c_drive_scl(void *data, int state)
{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
- uint8_t val;
-
- val = (NVReadVgaCrtc(dev, 0, i2c->wr) & 0xd0) | (state ? 0x20 : 0);
- NVWriteVgaCrtc(dev, 0, i2c->wr, val | 0x01);
-}
-
-static void
-nv04_i2c_setsda(void *data, int state)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
- uint8_t val;
-
- val = (NVReadVgaCrtc(dev, 0, i2c->wr) & 0xe0) | (state ? 0x10 : 0);
- NVWriteVgaCrtc(dev, 0, i2c->wr, val | 0x01);
-}
-
-static int
-nv04_i2c_getscl(void *data)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
-
- return !!(NVReadVgaCrtc(dev, 0, i2c->rd) & 4);
-}
-
-static int
-nv04_i2c_getsda(void *data)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
-
- return !!(NVReadVgaCrtc(dev, 0, i2c->rd) & 8);
-}
-
-static void
-nv4e_i2c_setscl(void *data, int state)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
- uint8_t val;
-
- val = (nv_rd32(dev, i2c->wr) & 0xd0) | (state ? 0x20 : 0);
- nv_wr32(dev, i2c->wr, val | 0x01);
-}
-
-static void
-nv4e_i2c_setsda(void *data, int state)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
- uint8_t val;
-
- val = (nv_rd32(dev, i2c->wr) & 0xe0) | (state ? 0x10 : 0);
- nv_wr32(dev, i2c->wr, val | 0x01);
-}
-
-static int
-nv4e_i2c_getscl(void *data)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
-
- return !!((nv_rd32(dev, i2c->rd) >> 16) & 4);
-}
-
-static int
-nv4e_i2c_getsda(void *data)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
-
- return !!((nv_rd32(dev, i2c->rd) >> 16) & 8);
-}
-
-static int
-nv50_i2c_getscl(void *data)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
-
- return !!(nv_rd32(dev, i2c->rd) & 1);
-}
-
-static int
-nv50_i2c_getsda(void *data)
-{
- struct nouveau_i2c_chan *i2c = data;
- struct drm_device *dev = i2c->dev;
-
- return !!(nv_rd32(dev, i2c->rd) & 2);
-}
-
-static void
-nv50_i2c_setscl(void *data, int state)
-{
- struct nouveau_i2c_chan *i2c = data;
-
- nv_wr32(i2c->dev, i2c->wr, 4 | (i2c->data ? 2 : 0) | (state ? 1 : 0));
+ struct nouveau_i2c_chan *port = data;
+ if (port->type == 0) {
+ u8 val = NVReadVgaCrtc(port->dev, 0, port->drive);
+ if (state) val |= 0x20;
+ else val &= 0xdf;
+ NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01);
+ } else
+ if (port->type == 4) {
+ nv_mask(port->dev, port->drive, 0x2f, state ? 0x21 : 0x01);
+ } else
+ if (port->type == 5) {
+ if (state) port->state |= 0x01;
+ else port->state &= 0xfe;
+ nv_wr32(port->dev, port->drive, 4 | port->state);
+ }
}
static void
-nv50_i2c_setsda(void *data, int state)
+i2c_drive_sda(void *data, int state)
{
- struct nouveau_i2c_chan *i2c = data;
-
- nv_mask(i2c->dev, i2c->wr, 0x00000006, 4 | (state ? 2 : 0));
- i2c->data = state;
+ struct nouveau_i2c_chan *port = data;
+ if (port->type == 0) {
+ u8 val = NVReadVgaCrtc(port->dev, 0, port->drive);
+ if (state) val |= 0x10;
+ else val &= 0xef;
+ NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01);
+ } else
+ if (port->type == 4) {
+ nv_mask(port->dev, port->drive, 0x1f, state ? 0x11 : 0x01);
+ } else
+ if (port->type == 5) {
+ if (state) port->state |= 0x02;
+ else port->state &= 0xfd;
+ nv_wr32(port->dev, port->drive, 4 | port->state);
+ }
}
static int
-nvd0_i2c_getscl(void *data)
+i2c_sense_scl(void *data)
{
- struct nouveau_i2c_chan *i2c = data;
- return !!(nv_rd32(i2c->dev, i2c->rd) & 0x10);
+ struct nouveau_i2c_chan *port = data;
+ struct drm_nouveau_private *dev_priv = port->dev->dev_private;
+ if (port->type == 0) {
+ return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x04);
+ } else
+ if (port->type == 4) {
+ return !!(nv_rd32(port->dev, port->sense) & 0x00040000);
+ } else
+ if (port->type == 5) {
+ if (dev_priv->card_type < NV_D0)
+ return !!(nv_rd32(port->dev, port->sense) & 0x01);
+ else
+ return !!(nv_rd32(port->dev, port->sense) & 0x10);
+ }
+ return 0;
}
static int
-nvd0_i2c_getsda(void *data)
+i2c_sense_sda(void *data)
{
- struct nouveau_i2c_chan *i2c = data;
- return !!(nv_rd32(i2c->dev, i2c->rd) & 0x20);
+ struct nouveau_i2c_chan *port = data;
+ struct drm_nouveau_private *dev_priv = port->dev->dev_private;
+ if (port->type == 0) {
+ return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x08);
+ } else
+ if (port->type == 4) {
+ return !!(nv_rd32(port->dev, port->sense) & 0x00080000);
+ } else
+ if (port->type == 5) {
+ if (dev_priv->card_type < NV_D0)
+ return !!(nv_rd32(port->dev, port->sense) & 0x02);
+ else
+ return !!(nv_rd32(port->dev, port->sense) & 0x20);
+ }
+ return 0;
}
static const uint32_t nv50_i2c_port[] = {
@@ -258,51 +209,37 @@ nouveau_i2c_init(struct drm_device *dev)
switch (port->type) {
case 0: /* NV04:NV50 */
- port->wr = entry[0];
- port->rd = entry[1];
- port->bit.setsda = nv04_i2c_setsda;
- port->bit.setscl = nv04_i2c_setscl;
- port->bit.getsda = nv04_i2c_getsda;
- port->bit.getscl = nv04_i2c_getscl;
+ port->drive = entry[0];
+ port->sense = entry[1];
break;
case 4: /* NV4E */
- port->wr = 0x600800 + entry[1];
- port->rd = port->wr;
- port->bit.setsda = nv4e_i2c_setsda;
- port->bit.setscl = nv4e_i2c_setscl;
- port->bit.getsda = nv4e_i2c_getsda;
- port->bit.getscl = nv4e_i2c_getscl;
+ port->drive = 0x600800 + entry[1];
+ port->sense = port->drive;
break;
case 5: /* NV50- */
- port->wr = entry[0] & 0x0f;
+ port->drive = entry[0] & 0x0f;
if (dev_priv->card_type < NV_D0) {
- if (port->wr >= ARRAY_SIZE(nv50_i2c_port))
+ if (port->drive >= ARRAY_SIZE(nv50_i2c_port))
break;
- port->wr = nv50_i2c_port[port->wr];
- port->rd = port->wr;
- port->bit.getsda = nv50_i2c_getsda;
- port->bit.getscl = nv50_i2c_getscl;
+ port->drive = nv50_i2c_port[port->drive];
+ port->sense = port->drive;
} else {
- port->wr = 0x00d014 + (port->wr * 0x20);
- port->rd = port->wr;
- port->bit.getsda = nvd0_i2c_getsda;
- port->bit.getscl = nvd0_i2c_getscl;
+ port->drive = 0x00d014 + (port->drive * 0x20);
+ port->sense = port->drive;
}
- port->bit.setsda = nv50_i2c_setsda;
- port->bit.setscl = nv50_i2c_setscl;
break;
case 6: /* NV50- DP AUX */
- port->wr = entry[0];
- port->rd = port->wr;
+ port->drive = entry[0];
+ port->sense = port->drive;
port->adapter.algo = &nouveau_dp_i2c_algo;
break;
default:
break;
}
- if (!port->adapter.algo && !port->wr) {
+ if (!port->adapter.algo && !port->drive) {
NV_ERROR(dev, "I2C%d: type %d index %x/%x unknown\n",
- i, port->type, port->wr, port->rd);
+ i, port->type, port->drive, port->sense);
kfree(port);
continue;
}
@@ -321,6 +258,15 @@ nouveau_i2c_init(struct drm_device *dev)
port->bit.udelay = 40;
port->bit.timeout = usecs_to_jiffies(5000);
port->bit.data = port;
+ port->bit.setsda = i2c_drive_sda;
+ port->bit.setscl = i2c_drive_scl;
+ port->bit.getsda = i2c_sense_sda;
+ port->bit.getscl = i2c_sense_scl;
+
+ i2c_drive_scl(port, 0);
+ i2c_drive_sda(port, 1);
+ i2c_drive_scl(port, 1);
+
ret = i2c_bit_add_bus(&port->adapter);
} else {
port->adapter.algo = &nouveau_dp_i2c_algo;
@@ -381,7 +327,7 @@ nouveau_i2c_find(struct drm_device *dev, u8 index)
if (dev_priv->card_type >= NV_50 && (port->dcb & 0x00000100)) {
u32 reg = 0x00e500, val;
if (port->type == 6) {
- reg += port->rd * 0x50;
+ reg += port->drive * 0x50;
val = 0x2002;
} else {
reg += ((port->dcb & 0x1e00) >> 9) * 0x50;
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.h b/drivers/gpu/drm/nouveau/nouveau_i2c.h
index cf5f67d51fb..1d083893a4d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.h
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.h
@@ -39,9 +39,9 @@ struct nouveau_i2c_chan {
u8 index;
u8 type;
u32 dcb;
- unsigned rd;
- unsigned wr;
- unsigned data;
+ u32 drive;
+ u32 sense;
+ u32 state;
};
int nouveau_i2c_init(struct drm_device *);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 22:39:16 +0000