nouveau-y += core/subdev/i2c/anx9805.o
nouveau-y += core/subdev/i2c/aux.o
nouveau-y += core/subdev/i2c/bit.o
+nouveau-y += core/subdev/i2c/pad.o
+nouveau-y += core/subdev/i2c/padnv04.o
+nouveau-y += core/subdev/i2c/padnv94.o
nouveau-y += core/subdev/i2c/nv04.o
nouveau-y += core/subdev/i2c/nv4e.o
nouveau-y += core/subdev/i2c/nv50.o
struct nouveau_i2c_port {
struct nouveau_object base;
struct i2c_adapter adapter;
+ struct mutex mutex;
struct list_head head;
u8 index;
};
struct nouveau_i2c_func {
- void (*acquire)(struct nouveau_i2c_port *);
- void (*release)(struct nouveau_i2c_port *);
-
void (*drive_scl)(struct nouveau_i2c_port *, int);
void (*drive_sda)(struct nouveau_i2c_port *, int);
int (*sense_scl)(struct nouveau_i2c_port *);
struct nouveau_i2c_port *(*find)(struct nouveau_i2c *, u8 index);
struct nouveau_i2c_port *(*find_type)(struct nouveau_i2c *, u16 type);
+ int (*acquire_pad)(struct nouveau_i2c_port *, unsigned long timeout);
+ void (*release_pad)(struct nouveau_i2c_port *);
int (*acquire)(struct nouveau_i2c_port *, unsigned long timeout);
void (*release)(struct nouveau_i2c_port *);
int (*identify)(struct nouveau_i2c *, int index,
const char *what, struct nouveau_i2c_board_info *,
bool (*match)(struct nouveau_i2c_port *,
struct i2c_board_info *, void *), void *);
+
+ wait_queue_head_t wait;
struct list_head ports;
};
#include <subdev/vga.h>
#include "priv.h"
+#include "pad.h"
/******************************************************************************
* interface to linux i2c bit-banging algorithm
* base i2c "port" class implementation
*****************************************************************************/
+int
+_nouveau_i2c_port_fini(struct nouveau_object *object, bool suspend)
+{
+ struct nouveau_i2c_port *port = (void *)object;
+ struct nvkm_i2c_pad *pad = nvkm_i2c_pad(port);
+ nv_ofuncs(pad)->fini(nv_object(pad), suspend);
+ return nouveau_object_fini(&port->base, suspend);
+}
+
void
_nouveau_i2c_port_dtor(struct nouveau_object *object)
{
const struct nouveau_i2c_func *func,
int size, void **pobject)
{
- struct nouveau_device *device = nv_device(parent);
+ struct nouveau_device *device = nv_device(engine);
struct nouveau_i2c *i2c = (void *)engine;
struct nouveau_i2c_port *port;
int ret;
port->index = index;
port->aux = -1;
port->func = func;
+ mutex_init(&port->mutex);
if ( algo == &nouveau_i2c_bit_algo &&
!nouveau_boolopt(device->cfgopt, "NvI2C", CSTMSEL)) {
return NULL;
}
+static void
+nouveau_i2c_release_pad(struct nouveau_i2c_port *port)
+{
+ struct nvkm_i2c_pad *pad = nvkm_i2c_pad(port);
+ struct nouveau_i2c *i2c = nouveau_i2c(port);
+
+ if (atomic_dec_and_test(&nv_object(pad)->usecount)) {
+ nv_ofuncs(pad)->fini(nv_object(pad), false);
+ wake_up_all(&i2c->wait);
+ }
+}
+
+static int
+nouveau_i2c_try_acquire_pad(struct nouveau_i2c_port *port)
+{
+ struct nvkm_i2c_pad *pad = nvkm_i2c_pad(port);
+
+ if (atomic_add_return(1, &nv_object(pad)->usecount) != 1) {
+ struct nouveau_object *owner = (void *)pad->port;
+ do {
+ if (owner == (void *)port)
+ return 0;
+ owner = owner->parent;
+ } while(owner);
+ nouveau_i2c_release_pad(port);
+ return -EBUSY;
+ }
+
+ pad->next = port;
+ nv_ofuncs(pad)->init(nv_object(pad));
+ return 0;
+}
+
+static int
+nouveau_i2c_acquire_pad(struct nouveau_i2c_port *port, unsigned long timeout)
+{
+ struct nouveau_i2c *i2c = nouveau_i2c(port);
+
+ if (timeout) {
+ if (wait_event_timeout(i2c->wait,
+ nouveau_i2c_try_acquire_pad(port) == 0,
+ timeout) == 0)
+ return -EBUSY;
+ } else {
+ wait_event(i2c->wait, nouveau_i2c_try_acquire_pad(port) == 0);
+ }
+
+ return 0;
+}
+
static void
nouveau_i2c_release(struct nouveau_i2c_port *port)
+__releases(pad->mutex)
{
- if (port->func->release)
- port->func->release(port);
+ nouveau_i2c(port)->release_pad(port);
+ mutex_unlock(&port->mutex);
}
static int
nouveau_i2c_acquire(struct nouveau_i2c_port *port, unsigned long timeout)
+__acquires(pad->mutex)
{
- if (port->func->acquire)
- port->func->acquire(port);
- return 0;
+ int ret;
+ mutex_lock(&port->mutex);
+ if ((ret = nouveau_i2c(port)->acquire_pad(port, timeout)))
+ mutex_unlock(&port->mutex);
+ return ret;
}
static int
struct nouveau_i2c *i2c;
struct nouveau_object *object;
struct dcb_i2c_entry info;
- int ret, i, j, index = -1;
+ int ret, i, j, index = -1, pad;
struct dcb_output outp;
u8 ver, hdr;
u32 data;
nv_subdev(i2c)->intr = nouveau_i2c_intr;
i2c->find = nouveau_i2c_find;
i2c->find_type = nouveau_i2c_find_type;
+ i2c->acquire_pad = nouveau_i2c_acquire_pad;
+ i2c->release_pad = nouveau_i2c_release_pad;
i2c->acquire = nouveau_i2c_acquire;
i2c->release = nouveau_i2c_release;
i2c->identify = nouveau_i2c_identify;
+ init_waitqueue_head(&i2c->wait);
INIT_LIST_HEAD(&i2c->ports);
while (!dcb_i2c_parse(bios, ++index, &info)) {
if (info.type == DCB_I2C_UNUSED)
continue;
+ if (info.share != DCB_I2C_UNUSED) {
+ if (info.type == DCB_I2C_NVIO_AUX)
+ pad = info.drive;
+ else
+ pad = info.share;
+ oclass = impl->pad_s;
+ } else {
+ pad = 0x100 + info.drive;
+ oclass = impl->pad_x;
+ }
+
+ ret = nouveau_object_ctor(NULL, *pobject, oclass,
+ NULL, pad, &parent);
+ if (ret < 0)
+ continue;
+
oclass = impl->sclass;
do {
ret = -EINVAL;
if (oclass->handle == info.type) {
- ret = nouveau_object_ctor(*pobject, *pobject,
+ ret = nouveau_object_ctor(parent, *pobject,
oclass, &info,
index, &object);
}
} while (ret && (++oclass)->handle);
+
+ nouveau_object_ref(NULL, &parent);
}
/* in addition to the busses specified in the i2c table, there
.fini = _nouveau_i2c_fini,
},
.sclass = nv04_i2c_sclass,
+ .pad_x = &nv04_i2c_pad_oclass,
}.base;
.fini = _nouveau_i2c_fini,
},
.sclass = nv4e_i2c_sclass,
+ .pad_x = &nv04_i2c_pad_oclass,
}.base;
.fini = _nouveau_i2c_fini,
},
.sclass = nv50_i2c_sclass,
+ .pad_x = &nv04_i2c_pad_oclass,
}.base;
return ret < 0 ? ret : (stat & 0x000f0000) >> 16;
}
-void
-nv94_i2c_acquire(struct nouveau_i2c_port *base)
-{
- struct nv50_i2c_priv *priv = (void *)nv_object(base)->engine;
- struct nv50_i2c_port *port = (void *)base;
- if (port->ctrl) {
- nv_mask(priv, port->ctrl + 0x0c, 0x00000001, 0x00000000);
- nv_mask(priv, port->ctrl + 0x00, 0x0000f003, port->data);
- }
-}
-
-void
-nv94_i2c_release(struct nouveau_i2c_port *base)
-{
-}
-
static const struct nouveau_i2c_func
nv94_i2c_func = {
- .acquire = nv94_i2c_acquire,
- .release = nv94_i2c_release,
.drive_scl = nv50_i2c_drive_scl,
.drive_sda = nv50_i2c_drive_sda,
.sense_scl = nv50_i2c_sense_scl,
static const struct nouveau_i2c_func
nv94_aux_func = {
- .acquire = nv94_i2c_acquire,
- .release = nv94_i2c_release,
.aux = nv94_aux,
};
.fini = _nouveau_i2c_fini,
},
.sclass = nv94_i2c_sclass,
+ .pad_x = &nv04_i2c_pad_oclass,
+ .pad_s = &nv94_i2c_pad_oclass,
.aux = 4,
.aux_stat = nv94_aux_stat,
.aux_mask = nv94_aux_mask,
static const struct nouveau_i2c_func
nvd0_i2c_func = {
- .acquire = nv94_i2c_acquire,
- .release = nv94_i2c_release,
.drive_scl = nv50_i2c_drive_scl,
.drive_sda = nv50_i2c_drive_sda,
.sense_scl = nvd0_i2c_sense_scl,
.fini = _nouveau_i2c_fini,
},
.sclass = nvd0_i2c_sclass,
+ .pad_x = &nv04_i2c_pad_oclass,
+ .pad_s = &nv94_i2c_pad_oclass,
.aux = 4,
.aux_stat = nv94_aux_stat,
.aux_mask = nv94_aux_mask,
.fini = _nouveau_i2c_fini,
},
.sclass = nvd0_i2c_sclass,
+ .pad_x = &nv04_i2c_pad_oclass,
+ .pad_s = &nv94_i2c_pad_oclass,
.aux = 4,
.aux_stat = nve0_aux_stat,
.aux_mask = nve0_aux_mask,
--- /dev/null
+/*
+ * Copyright 2014 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 "pad.h"
+
+int
+_nvkm_i2c_pad_fini(struct nouveau_object *object, bool suspend)
+{
+ struct nvkm_i2c_pad *pad = (void *)object;
+ DBG("-> NULL\n");
+ pad->port = NULL;
+ return nouveau_object_fini(&pad->base, suspend);
+}
+
+int
+_nvkm_i2c_pad_init(struct nouveau_object *object)
+{
+ struct nvkm_i2c_pad *pad = (void *)object;
+ DBG("-> PORT:%02x\n", pad->next->index);
+ pad->port = pad->next;
+ return nouveau_object_init(&pad->base);
+}
+
+int
+nvkm_i2c_pad_create_(struct nouveau_object *parent,
+ struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, int index,
+ int size, void **pobject)
+{
+ struct nouveau_i2c *i2c = (void *)engine;
+ struct nouveau_i2c_port *port;
+ struct nvkm_i2c_pad *pad;
+ int ret;
+
+ list_for_each_entry(port, &i2c->ports, head) {
+ pad = nvkm_i2c_pad(port);
+ if (pad->index == index) {
+ atomic_inc(&nv_object(pad)->refcount);
+ *pobject = pad;
+ return 1;
+ }
+ }
+
+ ret = nouveau_object_create_(parent, engine, oclass, 0, size, pobject);
+ pad = *pobject;
+ if (ret)
+ return ret;
+
+ pad->index = index;
+ return 0;
+}
+
+int
+_nvkm_i2c_pad_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, void *data, u32 index,
+ struct nouveau_object **pobject)
+{
+ struct nvkm_i2c_pad *pad;
+ int ret;
+ ret = nvkm_i2c_pad_create(parent, engine, oclass, index, &pad);
+ *pobject = nv_object(pad);
+ return ret;
+}
--- /dev/null
+#ifndef __NVKM_I2C_PAD_H__
+#define __NVKM_I2C_PAD_H__
+
+#include "priv.h"
+
+struct nvkm_i2c_pad {
+ struct nouveau_object base;
+ int index;
+ struct nouveau_i2c_port *port;
+ struct nouveau_i2c_port *next;
+};
+
+static inline struct nvkm_i2c_pad *
+nvkm_i2c_pad(struct nouveau_i2c_port *port)
+{
+ struct nouveau_object *pad = nv_object(port);
+ while (pad->parent)
+ pad = pad->parent;
+ return (void *)pad;
+}
+
+#define nvkm_i2c_pad_create(p,e,o,i,d) \
+ nvkm_i2c_pad_create_((p), (e), (o), (i), sizeof(**d), (void **)d)
+#define nvkm_i2c_pad_destroy(p) ({ \
+ struct nvkm_i2c_pad *_p = (p); \
+ _nvkm_i2c_pad_dtor(nv_object(_p)); \
+})
+#define nvkm_i2c_pad_init(p) ({ \
+ struct nvkm_i2c_pad *_p = (p); \
+ _nvkm_i2c_pad_init(nv_object(_p)); \
+})
+#define nvkm_i2c_pad_fini(p,s) ({ \
+ struct nvkm_i2c_pad *_p = (p); \
+ _nvkm_i2c_pad_fini(nv_object(_p), (s)); \
+})
+
+int nvkm_i2c_pad_create_(struct nouveau_object *, struct nouveau_object *,
+ struct nouveau_oclass *, int index, int, void **);
+
+int _nvkm_i2c_pad_ctor(struct nouveau_object *, struct nouveau_object *,
+ struct nouveau_oclass *, void *, u32,
+ struct nouveau_object **);
+#define _nvkm_i2c_pad_dtor nouveau_object_destroy
+int _nvkm_i2c_pad_init(struct nouveau_object *);
+int _nvkm_i2c_pad_fini(struct nouveau_object *, bool);
+
+#ifndef MSG
+#define MSG(l,f,a...) do { \
+ struct nvkm_i2c_pad *_pad = (void *)pad; \
+ nv_##l(nv_object(_pad)->engine, "PAD:%c:%02x: "f, \
+ _pad->index >= 0x100 ? 'X' : 'S', \
+ _pad->index >= 0x100 ? _pad->index - 0x100 : _pad->index, ##a); \
+} while(0)
+#define DBG(f,a...) MSG(debug, f, ##a)
+#define ERR(f,a...) MSG(error, f, ##a)
+#endif
+
+#endif
--- /dev/null
+/*
+ * Copyright 2014 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 "pad.h"
+
+struct nouveau_oclass
+nv04_i2c_pad_oclass = {
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = _nvkm_i2c_pad_ctor,
+ .dtor = _nvkm_i2c_pad_dtor,
+ .init = _nvkm_i2c_pad_init,
+ .fini = _nvkm_i2c_pad_fini,
+ },
+};
--- /dev/null
+/*
+ * Copyright 2014 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 "pad.h"
+
+struct nv94_i2c_pad {
+ struct nvkm_i2c_pad base;
+ int addr;
+};
+
+static int
+nv94_i2c_pad_fini(struct nouveau_object *object, bool suspend)
+{
+ struct nouveau_i2c *i2c = (void *)object->engine;
+ struct nv94_i2c_pad *pad = (void *)object;
+ nv_mask(i2c, 0x00e50c + pad->addr, 0x00000001, 0x00000001);
+ return nvkm_i2c_pad_fini(&pad->base, suspend);
+}
+
+static int
+nv94_i2c_pad_init(struct nouveau_object *object)
+{
+ struct nouveau_i2c *i2c = (void *)object->engine;
+ struct nv94_i2c_pad *pad = (void *)object;
+
+ switch (nv_oclass(pad->base.next)->handle) {
+ case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_AUX):
+ nv_mask(i2c, 0x00e500 + pad->addr, 0x0000c003, 0x00000002);
+ break;
+ case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_BIT):
+ default:
+ nv_mask(i2c, 0x00e500 + pad->addr, 0x0000c003, 0x0000c001);
+ break;
+ }
+
+ nv_mask(i2c, 0x00e50c + pad->addr, 0x00000001, 0x00000000);
+ return nvkm_i2c_pad_init(&pad->base);
+}
+
+static int
+nv94_i2c_pad_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, void *data, u32 index,
+ struct nouveau_object **pobject)
+{
+ struct nv94_i2c_pad *pad;
+ int ret;
+
+ ret = nvkm_i2c_pad_create(parent, engine, oclass, index, &pad);
+ *pobject = nv_object(pad);
+ if (ret)
+ return ret;
+
+ pad->addr = index * 0x50;;
+ return 0;
+}
+
+struct nouveau_oclass
+nv94_i2c_pad_oclass = {
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = nv94_i2c_pad_ctor,
+ .dtor = _nvkm_i2c_pad_dtor,
+ .init = nv94_i2c_pad_init,
+ .fini = nv94_i2c_pad_fini,
+ },
+};
#include <subdev/i2c.h>
+extern struct nouveau_oclass nv04_i2c_pad_oclass;
+extern struct nouveau_oclass nv94_i2c_pad_oclass;
+
#define nouveau_i2c_port_create(p,e,o,i,a,f,d) \
nouveau_i2c_port_create_((p), (e), (o), (i), (a), (f), \
sizeof(**d), (void **)d)
int, void **);
void _nouveau_i2c_port_dtor(struct nouveau_object *);
#define _nouveau_i2c_port_init nouveau_object_init
-#define _nouveau_i2c_port_fini nouveau_object_fini
+int _nouveau_i2c_port_fini(struct nouveau_object *, bool);
#define nouveau_i2c_create(p,e,o,d) \
nouveau_i2c_create_((p), (e), (o), sizeof(**d), (void **)d)
/* supported i2c port classes */
struct nouveau_oclass *sclass;
+ struct nouveau_oclass *pad_x;
+ struct nouveau_oclass *pad_s;
/* number of native dp aux channels present */
int aux;
projects / karo-tx-linux.git / commitdiff