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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c374
1 files changed, 180 insertions, 194 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c
index d17dd1cf3c34..b7b01c3f7037 100644
--- a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c
@@ -21,272 +21,258 @@
*
* Authors: Ben Skeggs <bskeggs@redhat.com>
*/
-#include "port.h"
+#define anx9805_pad(p) container_of((p), struct anx9805_pad, base)
+#define anx9805_bus(p) container_of((p), struct anx9805_bus, base)
+#define anx9805_aux(p) container_of((p), struct anx9805_aux, base)
+#include "aux.h"
+#include "bus.h"
+
+struct anx9805_pad {
+ struct nvkm_i2c_pad base;
+ struct nvkm_i2c_bus *bus;
+ u8 addr;
+};
-struct anx9805_i2c_port {
- struct nvkm_i2c_port base;
- u32 addr;
- u32 ctrl;
+struct anx9805_bus {
+ struct nvkm_i2c_bus base;
+ struct anx9805_pad *pad;
+ u8 addr;
};
static int
-anx9805_train(struct nvkm_i2c_port *port, int link_nr, int link_bw, bool enh)
+anx9805_bus_xfer(struct nvkm_i2c_bus *base, struct i2c_msg *msgs, int num)
{
- struct anx9805_i2c_port *chan = (void *)port;
- struct nvkm_i2c_port *mast = (void *)nv_object(chan)->parent;
- u8 tmp, i;
-
- DBG("ANX9805 train %d 0x%02x %d\n", link_nr, link_bw, enh);
+ struct anx9805_bus *bus = anx9805_bus(base);
+ struct anx9805_pad *pad = bus->pad;
+ struct i2c_adapter *adap = &pad->bus->i2c;
+ struct i2c_msg *msg = msgs;
+ int ret = -ETIMEDOUT;
+ int i, j, cnt = num;
+ u8 seg = 0x00, off = 0x00, tmp;
- nv_wri2cr(mast, chan->addr, 0xa0, link_bw);
- nv_wri2cr(mast, chan->addr, 0xa1, link_nr | (enh ? 0x80 : 0x00));
- nv_wri2cr(mast, chan->addr, 0xa2, 0x01);
- nv_wri2cr(mast, chan->addr, 0xa8, 0x01);
+ tmp = nvkm_rdi2cr(adap, pad->addr, 0x07) & ~0x10;
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp | 0x10);
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp);
+ nvkm_wri2cr(adap, bus->addr, 0x43, 0x05);
+ mdelay(5);
- i = 0;
- while ((tmp = nv_rdi2cr(mast, chan->addr, 0xa8)) & 0x01) {
- mdelay(5);
- if (i++ == 100) {
- nv_error(port, "link training timed out\n");
- return -ETIMEDOUT;
+ while (cnt--) {
+ if ( (msg->flags & I2C_M_RD) && msg->addr == 0x50) {
+ nvkm_wri2cr(adap, bus->addr, 0x40, msg->addr << 1);
+ nvkm_wri2cr(adap, bus->addr, 0x41, seg);
+ nvkm_wri2cr(adap, bus->addr, 0x42, off);
+ nvkm_wri2cr(adap, bus->addr, 0x44, msg->len);
+ nvkm_wri2cr(adap, bus->addr, 0x45, 0x00);
+ nvkm_wri2cr(adap, bus->addr, 0x43, 0x01);
+ for (i = 0; i < msg->len; i++) {
+ j = 0;
+ while (nvkm_rdi2cr(adap, bus->addr, 0x46) & 0x10) {
+ mdelay(5);
+ if (j++ == 32)
+ goto done;
+ }
+ msg->buf[i] = nvkm_rdi2cr(adap, bus->addr, 0x47);
+ }
+ } else
+ if (!(msg->flags & I2C_M_RD)) {
+ if (msg->addr == 0x50 && msg->len == 0x01) {
+ off = msg->buf[0];
+ } else
+ if (msg->addr == 0x30 && msg->len == 0x01) {
+ seg = msg->buf[0];
+ } else
+ goto done;
+ } else {
+ goto done;
}
+ msg++;
}
- if (tmp & 0x70) {
- nv_error(port, "link training failed: 0x%02x\n", tmp);
- return -EIO;
+ ret = num;
+done:
+ nvkm_wri2cr(adap, bus->addr, 0x43, 0x00);
+ return ret;
+}
+
+static const struct nvkm_i2c_bus_func
+anx9805_bus_func = {
+ .xfer = anx9805_bus_xfer,
+};
+
+static int
+anx9805_bus_new(struct nvkm_i2c_pad *base, int id, u8 drive,
+ struct nvkm_i2c_bus **pbus)
+{
+ struct anx9805_pad *pad = anx9805_pad(base);
+ struct anx9805_bus *bus;
+ int ret;
+
+ if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &bus->base;
+ bus->pad = pad;
+
+ ret = nvkm_i2c_bus_ctor(&anx9805_bus_func, &pad->base, id, &bus->base);
+ if (ret)
+ return ret;
+
+ switch (pad->addr) {
+ case 0x39: bus->addr = 0x3d; break;
+ case 0x3b: bus->addr = 0x3f; break;
+ default:
+ return -ENOSYS;
}
- return 1;
+ return 0;
}
+struct anx9805_aux {
+ struct nvkm_i2c_aux base;
+ struct anx9805_pad *pad;
+ u8 addr;
+};
+
static int
-anx9805_aux(struct nvkm_i2c_port *port, bool retry,
- u8 type, u32 addr, u8 *data, u8 size)
+anx9805_aux_xfer(struct nvkm_i2c_aux *base, bool retry,
+ u8 type, u32 addr, u8 *data, u8 size)
{
- struct anx9805_i2c_port *chan = (void *)port;
- struct nvkm_i2c_port *mast = (void *)nv_object(chan)->parent;
+ struct anx9805_aux *aux = anx9805_aux(base);
+ struct anx9805_pad *pad = aux->pad;
+ struct i2c_adapter *adap = &pad->bus->i2c;
int i, ret = -ETIMEDOUT;
u8 buf[16] = {};
u8 tmp;
- DBG("%02x %05x %d\n", type, addr, size);
+ AUX_DBG(&aux->base, "%02x %05x %d", type, addr, size);
- tmp = nv_rdi2cr(mast, chan->ctrl, 0x07) & ~0x04;
- nv_wri2cr(mast, chan->ctrl, 0x07, tmp | 0x04);
- nv_wri2cr(mast, chan->ctrl, 0x07, tmp);
- nv_wri2cr(mast, chan->ctrl, 0xf7, 0x01);
+ tmp = nvkm_rdi2cr(adap, pad->addr, 0x07) & ~0x04;
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp | 0x04);
+ nvkm_wri2cr(adap, pad->addr, 0x07, tmp);
+ nvkm_wri2cr(adap, pad->addr, 0xf7, 0x01);
- nv_wri2cr(mast, chan->addr, 0xe4, 0x80);
+ nvkm_wri2cr(adap, aux->addr, 0xe4, 0x80);
if (!(type & 1)) {
memcpy(buf, data, size);
- DBG("%16ph", buf);
+ AUX_DBG(&aux->base, "%16ph", buf);
for (i = 0; i < size; i++)
- nv_wri2cr(mast, chan->addr, 0xf0 + i, buf[i]);
+ nvkm_wri2cr(adap, aux->addr, 0xf0 + i, buf[i]);
}
- nv_wri2cr(mast, chan->addr, 0xe5, ((size - 1) << 4) | type);
- nv_wri2cr(mast, chan->addr, 0xe6, (addr & 0x000ff) >> 0);
- nv_wri2cr(mast, chan->addr, 0xe7, (addr & 0x0ff00) >> 8);
- nv_wri2cr(mast, chan->addr, 0xe8, (addr & 0xf0000) >> 16);
- nv_wri2cr(mast, chan->addr, 0xe9, 0x01);
+ nvkm_wri2cr(adap, aux->addr, 0xe5, ((size - 1) << 4) | type);
+ nvkm_wri2cr(adap, aux->addr, 0xe6, (addr & 0x000ff) >> 0);
+ nvkm_wri2cr(adap, aux->addr, 0xe7, (addr & 0x0ff00) >> 8);
+ nvkm_wri2cr(adap, aux->addr, 0xe8, (addr & 0xf0000) >> 16);
+ nvkm_wri2cr(adap, aux->addr, 0xe9, 0x01);
i = 0;
- while ((tmp = nv_rdi2cr(mast, chan->addr, 0xe9)) & 0x01) {
+ while ((tmp = nvkm_rdi2cr(adap, aux->addr, 0xe9)) & 0x01) {
mdelay(5);
if (i++ == 32)
goto done;
}
- if ((tmp = nv_rdi2cr(mast, chan->ctrl, 0xf7)) & 0x01) {
+ if ((tmp = nvkm_rdi2cr(adap, pad->addr, 0xf7)) & 0x01) {
ret = -EIO;
goto done;
}
if (type & 1) {
for (i = 0; i < size; i++)
- buf[i] = nv_rdi2cr(mast, chan->addr, 0xf0 + i);
- DBG("%16ph", buf);
+ buf[i] = nvkm_rdi2cr(adap, aux->addr, 0xf0 + i);
+ AUX_DBG(&aux->base, "%16ph", buf);
memcpy(data, buf, size);
}
ret = 0;
done:
- nv_wri2cr(mast, chan->ctrl, 0xf7, 0x01);
+ nvkm_wri2cr(adap, pad->addr, 0xf7, 0x01);
return ret;
}
-static const struct nvkm_i2c_func
-anx9805_aux_func = {
- .aux = anx9805_aux,
- .lnk_ctl = anx9805_train,
-};
-
static int
-anx9805_aux_chan_ctor(struct nvkm_object *parent,
- struct nvkm_object *engine,
- struct nvkm_oclass *oclass, void *data, u32 index,
- struct nvkm_object **pobject)
+anx9805_aux_lnk_ctl(struct nvkm_i2c_aux *base,
+ int link_nr, int link_bw, bool enh)
{
- struct nvkm_i2c_port *mast = (void *)parent;
- struct anx9805_i2c_port *chan;
- int ret;
-
- ret = nvkm_i2c_port_create(parent, engine, oclass, index,
- &nvkm_i2c_aux_algo, &anx9805_aux_func,
- &chan);
- *pobject = nv_object(chan);
- if (ret)
- return ret;
-
- switch ((oclass->handle & 0xff00) >> 8) {
- case 0x0d:
- chan->addr = 0x38;
- chan->ctrl = 0x39;
- break;
- case 0x0e:
- chan->addr = 0x3c;
- chan->ctrl = 0x3b;
- break;
- default:
- BUG_ON(1);
- }
-
- if (mast->adapter.algo == &i2c_bit_algo) {
- struct i2c_algo_bit_data *algo = mast->adapter.algo_data;
- algo->udelay = max(algo->udelay, 40);
- }
-
- return 0;
-}
-
-static struct nvkm_ofuncs
-anx9805_aux_ofuncs = {
- .ctor = anx9805_aux_chan_ctor,
- .dtor = _nvkm_i2c_port_dtor,
- .init = _nvkm_i2c_port_init,
- .fini = _nvkm_i2c_port_fini,
-};
+ struct anx9805_aux *aux = anx9805_aux(base);
+ struct anx9805_pad *pad = aux->pad;
+ struct i2c_adapter *adap = &pad->bus->i2c;
+ u8 tmp, i;
-static int
-anx9805_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
-{
- struct anx9805_i2c_port *port = adap->algo_data;
- struct nvkm_i2c_port *mast = (void *)nv_object(port)->parent;
- struct i2c_msg *msg = msgs;
- int ret = -ETIMEDOUT;
- int i, j, cnt = num;
- u8 seg = 0x00, off = 0x00, tmp;
+ AUX_DBG(&aux->base, "ANX9805 train %d %02x %d",
+ link_nr, link_bw, enh);
- tmp = nv_rdi2cr(mast, port->ctrl, 0x07) & ~0x10;
- nv_wri2cr(mast, port->ctrl, 0x07, tmp | 0x10);
- nv_wri2cr(mast, port->ctrl, 0x07, tmp);
- nv_wri2cr(mast, port->addr, 0x43, 0x05);
- mdelay(5);
+ nvkm_wri2cr(adap, aux->addr, 0xa0, link_bw);
+ nvkm_wri2cr(adap, aux->addr, 0xa1, link_nr | (enh ? 0x80 : 0x00));
+ nvkm_wri2cr(adap, aux->addr, 0xa2, 0x01);
+ nvkm_wri2cr(adap, aux->addr, 0xa8, 0x01);
- while (cnt--) {
- if ( (msg->flags & I2C_M_RD) && msg->addr == 0x50) {
- nv_wri2cr(mast, port->addr, 0x40, msg->addr << 1);
- nv_wri2cr(mast, port->addr, 0x41, seg);
- nv_wri2cr(mast, port->addr, 0x42, off);
- nv_wri2cr(mast, port->addr, 0x44, msg->len);
- nv_wri2cr(mast, port->addr, 0x45, 0x00);
- nv_wri2cr(mast, port->addr, 0x43, 0x01);
- for (i = 0; i < msg->len; i++) {
- j = 0;
- while (nv_rdi2cr(mast, port->addr, 0x46) & 0x10) {
- mdelay(5);
- if (j++ == 32)
- goto done;
- }
- msg->buf[i] = nv_rdi2cr(mast, port->addr, 0x47);
- }
- } else
- if (!(msg->flags & I2C_M_RD)) {
- if (msg->addr == 0x50 && msg->len == 0x01) {
- off = msg->buf[0];
- } else
- if (msg->addr == 0x30 && msg->len == 0x01) {
- seg = msg->buf[0];
- } else
- goto done;
- } else {
- goto done;
+ i = 0;
+ while ((tmp = nvkm_rdi2cr(adap, aux->addr, 0xa8)) & 0x01) {
+ mdelay(5);
+ if (i++ == 100) {
+ AUX_ERR(&aux->base, "link training timeout");
+ return -ETIMEDOUT;
}
- msg++;
}
- ret = num;
-done:
- nv_wri2cr(mast, port->addr, 0x43, 0x00);
- return ret;
-}
+ if (tmp & 0x70) {
+ AUX_ERR(&aux->base, "link training failed");
+ return -EIO;
+ }
-static u32
-anx9805_func(struct i2c_adapter *adap)
-{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+ return 0;
}
-static const struct i2c_algorithm
-anx9805_i2c_algo = {
- .master_xfer = anx9805_xfer,
- .functionality = anx9805_func
-};
-
-static const struct nvkm_i2c_func
-anx9805_i2c_func = {
+static const struct nvkm_i2c_aux_func
+anx9805_aux_func = {
+ .xfer = anx9805_aux_xfer,
+ .lnk_ctl = anx9805_aux_lnk_ctl,
};
static int
-anx9805_ddc_port_ctor(struct nvkm_object *parent,
- struct nvkm_object *engine,
- struct nvkm_oclass *oclass, void *data, u32 index,
- struct nvkm_object **pobject)
+anx9805_aux_new(struct nvkm_i2c_pad *base, int id, u8 drive,
+ struct nvkm_i2c_aux **pbus)
{
- struct nvkm_i2c_port *mast = (void *)parent;
- struct anx9805_i2c_port *port;
+ struct anx9805_pad *pad = anx9805_pad(base);
+ struct anx9805_aux *aux;
int ret;
- ret = nvkm_i2c_port_create(parent, engine, oclass, index,
- &anx9805_i2c_algo, &anx9805_i2c_func, &port);
- *pobject = nv_object(port);
+ if (!(aux = kzalloc(sizeof(*aux), GFP_KERNEL)))
+ return -ENOMEM;
+ *pbus = &aux->base;
+ aux->pad = pad;
+
+ ret = nvkm_i2c_aux_ctor(&anx9805_aux_func, &pad->base, id, &aux->base);
if (ret)
return ret;
- switch ((oclass->handle & 0xff00) >> 8) {
- case 0x0d:
- port->addr = 0x3d;
- port->ctrl = 0x39;
- break;
- case 0x0e:
- port->addr = 0x3f;
- port->ctrl = 0x3b;
- break;
+ switch (pad->addr) {
+ case 0x39: aux->addr = 0x38; break;
+ case 0x3b: aux->addr = 0x3c; break;
default:
- BUG_ON(1);
- }
-
- if (mast->adapter.algo == &i2c_bit_algo) {
- struct i2c_algo_bit_data *algo = mast->adapter.algo_data;
- algo->udelay = max(algo->udelay, 40);
+ return -ENOSYS;
}
return 0;
}
-static struct nvkm_ofuncs
-anx9805_ddc_ofuncs = {
- .ctor = anx9805_ddc_port_ctor,
- .dtor = _nvkm_i2c_port_dtor,
- .init = _nvkm_i2c_port_init,
- .fini = _nvkm_i2c_port_fini,
+static const struct nvkm_i2c_pad_func
+anx9805_pad_func = {
+ .bus_new_4 = anx9805_bus_new,
+ .aux_new_6 = anx9805_aux_new,
};
-struct nvkm_oclass
-nvkm_anx9805_sclass[] = {
- { .handle = NV_I2C_TYPE_EXTDDC(0x0d), .ofuncs = &anx9805_ddc_ofuncs },
- { .handle = NV_I2C_TYPE_EXTAUX(0x0d), .ofuncs = &anx9805_aux_ofuncs },
- { .handle = NV_I2C_TYPE_EXTDDC(0x0e), .ofuncs = &anx9805_ddc_ofuncs },
- { .handle = NV_I2C_TYPE_EXTAUX(0x0e), .ofuncs = &anx9805_aux_ofuncs },
- {}
-};
+int
+anx9805_pad_new(struct nvkm_i2c_bus *bus, int id, u8 addr,
+ struct nvkm_i2c_pad **ppad)
+{
+ struct anx9805_pad *pad;
+
+ if (!(pad = kzalloc(sizeof(*pad), GFP_KERNEL)))
+ return -ENOMEM;
+ *ppad = &pad->base;
+
+ nvkm_i2c_pad_ctor(&anx9805_pad_func, bus->pad->i2c, id, &pad->base);
+ pad->bus = bus;
+ pad->addr = addr;
+ return 0;
+}