diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c')
33 files changed, 3290 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild new file mode 100644 index 000000000..819703913 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/Kbuild @@ -0,0 +1,33 @@ +# SPDX-License-Identifier: MIT +nvkm-y += nvkm/subdev/i2c/base.o +nvkm-y += nvkm/subdev/i2c/nv04.o +nvkm-y += nvkm/subdev/i2c/nv4e.o +nvkm-y += nvkm/subdev/i2c/nv50.o +nvkm-y += nvkm/subdev/i2c/g94.o +nvkm-y += nvkm/subdev/i2c/gf117.o +nvkm-y += nvkm/subdev/i2c/gf119.o +nvkm-y += nvkm/subdev/i2c/gk104.o +nvkm-y += nvkm/subdev/i2c/gk110.o +nvkm-y += nvkm/subdev/i2c/gm200.o + +nvkm-y += nvkm/subdev/i2c/pad.o +nvkm-y += nvkm/subdev/i2c/padnv04.o +nvkm-y += nvkm/subdev/i2c/padnv4e.o +nvkm-y += nvkm/subdev/i2c/padnv50.o +nvkm-y += nvkm/subdev/i2c/padg94.o +nvkm-y += nvkm/subdev/i2c/padgf119.o +nvkm-y += nvkm/subdev/i2c/padgm200.o + +nvkm-y += nvkm/subdev/i2c/bus.o +nvkm-y += nvkm/subdev/i2c/busnv04.o +nvkm-y += nvkm/subdev/i2c/busnv4e.o +nvkm-y += nvkm/subdev/i2c/busnv50.o +nvkm-y += nvkm/subdev/i2c/busgf119.o +nvkm-y += nvkm/subdev/i2c/bit.o + +nvkm-y += nvkm/subdev/i2c/aux.o +nvkm-y += nvkm/subdev/i2c/auxg94.o +nvkm-y += nvkm/subdev/i2c/auxgf119.o +nvkm-y += nvkm/subdev/i2c/auxgm200.o + +nvkm-y += nvkm/subdev/i2c/anx9805.o diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c new file mode 100644 index 000000000..dd391809f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/anx9805.c @@ -0,0 +1,278 @@ +/* + * Copyright 2013 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 <bskeggs@redhat.com> + */ +#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_bus { + struct nvkm_i2c_bus base; + struct anx9805_pad *pad; + u8 addr; +}; + +static int +anx9805_bus_xfer(struct nvkm_i2c_bus *base, struct i2c_msg *msgs, int num) +{ + 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; + + 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); + + 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++; + } + + 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 0; +} + +struct anx9805_aux { + struct nvkm_i2c_aux base; + struct anx9805_pad *pad; + u8 addr; +}; + +static int +anx9805_aux_xfer(struct nvkm_i2c_aux *base, bool retry, + u8 type, u32 addr, u8 *data, u8 *size) +{ + 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; + + AUX_DBG(&aux->base, "%02x %05x %d", type, addr, *size); + + 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); + + nvkm_wri2cr(adap, aux->addr, 0xe4, 0x80); + if (!(type & 1)) { + memcpy(buf, data, *size); + AUX_DBG(&aux->base, "%16ph", buf); + for (i = 0; i < *size; i++) + nvkm_wri2cr(adap, aux->addr, 0xf0 + i, buf[i]); + } + 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 = nvkm_rdi2cr(adap, aux->addr, 0xe9)) & 0x01) { + mdelay(5); + if (i++ == 32) + goto done; + } + + if ((tmp = nvkm_rdi2cr(adap, pad->addr, 0xf7)) & 0x01) { + ret = -EIO; + goto done; + } + + if (type & 1) { + for (i = 0; i < *size; i++) + buf[i] = nvkm_rdi2cr(adap, aux->addr, 0xf0 + i); + AUX_DBG(&aux->base, "%16ph", buf); + memcpy(data, buf, *size); + } + + ret = 0; +done: + nvkm_wri2cr(adap, pad->addr, 0xf7, 0x01); + return ret; +} + +static int +anx9805_aux_lnk_ctl(struct nvkm_i2c_aux *base, + int link_nr, int link_bw, bool enh) +{ + struct anx9805_aux *aux = anx9805_aux(base); + struct anx9805_pad *pad = aux->pad; + struct i2c_adapter *adap = &pad->bus->i2c; + u8 tmp, i; + + AUX_DBG(&aux->base, "ANX9805 train %d %02x %d", + link_nr, link_bw, enh); + + 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); + + 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; + } + } + + if (tmp & 0x70) { + AUX_ERR(&aux->base, "link training failed"); + return -EIO; + } + + return 0; +} + +static const struct nvkm_i2c_aux_func +anx9805_aux_func = { + .xfer = anx9805_aux_xfer, + .lnk_ctl = anx9805_aux_lnk_ctl, +}; + +static int +anx9805_aux_new(struct nvkm_i2c_pad *base, int id, u8 drive, + struct nvkm_i2c_aux **pbus) +{ + struct anx9805_pad *pad = anx9805_pad(base); + struct anx9805_aux *aux; + int ret; + + 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 (pad->addr) { + case 0x39: aux->addr = 0x38; break; + case 0x3b: aux->addr = 0x3c; break; + default: + return -ENOSYS; + } + + return 0; +} + +static const struct nvkm_i2c_pad_func +anx9805_pad_func = { + .bus_new_4 = anx9805_bus_new, + .aux_new_6 = anx9805_aux_new, +}; + +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; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c new file mode 100644 index 000000000..d063d0dc1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.c @@ -0,0 +1,215 @@ +/* + * Copyright 2009 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 <linux/string_helpers.h> + +#include "aux.h" +#include "pad.h" + +static int +nvkm_i2c_aux_i2c_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +{ + struct nvkm_i2c_aux *aux = container_of(adap, typeof(*aux), i2c); + struct i2c_msg *msg = msgs; + int ret, mcnt = num; + + ret = nvkm_i2c_aux_acquire(aux); + if (ret) + return ret; + + while (mcnt--) { + u8 remaining = msg->len; + u8 *ptr = msg->buf; + + while (remaining) { + u8 cnt, retries, cmd; + + if (msg->flags & I2C_M_RD) + cmd = 1; + else + cmd = 0; + + if (mcnt || remaining > 16) + cmd |= 4; /* MOT */ + + for (retries = 0, cnt = 0; + retries < 32 && !cnt; + retries++) { + cnt = min_t(u8, remaining, 16); + ret = aux->func->xfer(aux, true, cmd, + msg->addr, ptr, &cnt); + if (ret < 0) + goto out; + } + if (!cnt) { + AUX_TRACE(aux, "no data after 32 retries"); + ret = -EIO; + goto out; + } + + ptr += cnt; + remaining -= cnt; + } + + msg++; + } + + ret = num; +out: + nvkm_i2c_aux_release(aux); + return ret; +} + +static u32 +nvkm_i2c_aux_i2c_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static const struct i2c_algorithm +nvkm_i2c_aux_i2c_algo = { + .master_xfer = nvkm_i2c_aux_i2c_xfer, + .functionality = nvkm_i2c_aux_i2c_func +}; + +void +nvkm_i2c_aux_monitor(struct nvkm_i2c_aux *aux, bool monitor) +{ + struct nvkm_i2c_pad *pad = aux->pad; + AUX_TRACE(aux, "monitor: %s", str_yes_no(monitor)); + if (monitor) + nvkm_i2c_pad_mode(pad, NVKM_I2C_PAD_AUX); + else + nvkm_i2c_pad_mode(pad, NVKM_I2C_PAD_OFF); +} + +void +nvkm_i2c_aux_release(struct nvkm_i2c_aux *aux) +{ + struct nvkm_i2c_pad *pad = aux->pad; + AUX_TRACE(aux, "release"); + nvkm_i2c_pad_release(pad); + mutex_unlock(&aux->mutex); +} + +int +nvkm_i2c_aux_acquire(struct nvkm_i2c_aux *aux) +{ + struct nvkm_i2c_pad *pad = aux->pad; + int ret; + + AUX_TRACE(aux, "acquire"); + mutex_lock(&aux->mutex); + + if (aux->enabled) + ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_AUX); + else + ret = -EIO; + + if (ret) + mutex_unlock(&aux->mutex); + return ret; +} + +int +nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *aux, bool retry, u8 type, + u32 addr, u8 *data, u8 *size) +{ + if (!*size && !aux->func->address_only) { + AUX_ERR(aux, "address-only transaction dropped"); + return -ENOSYS; + } + return aux->func->xfer(aux, retry, type, addr, data, size); +} + +int +nvkm_i2c_aux_lnk_ctl(struct nvkm_i2c_aux *aux, int nr, int bw, bool ef) +{ + if (aux->func->lnk_ctl) + return aux->func->lnk_ctl(aux, nr, bw, ef); + return -ENODEV; +} + +void +nvkm_i2c_aux_del(struct nvkm_i2c_aux **paux) +{ + struct nvkm_i2c_aux *aux = *paux; + if (aux && !WARN_ON(!aux->func)) { + AUX_TRACE(aux, "dtor"); + list_del(&aux->head); + i2c_del_adapter(&aux->i2c); + kfree(*paux); + *paux = NULL; + } +} + +void +nvkm_i2c_aux_init(struct nvkm_i2c_aux *aux) +{ + AUX_TRACE(aux, "init"); + mutex_lock(&aux->mutex); + aux->enabled = true; + mutex_unlock(&aux->mutex); +} + +void +nvkm_i2c_aux_fini(struct nvkm_i2c_aux *aux) +{ + AUX_TRACE(aux, "fini"); + mutex_lock(&aux->mutex); + aux->enabled = false; + mutex_unlock(&aux->mutex); +} + +int +nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *func, + struct nvkm_i2c_pad *pad, int id, + struct nvkm_i2c_aux *aux) +{ + struct nvkm_device *device = pad->i2c->subdev.device; + + aux->func = func; + aux->pad = pad; + aux->id = id; + mutex_init(&aux->mutex); + list_add_tail(&aux->head, &pad->i2c->aux); + AUX_TRACE(aux, "ctor"); + + snprintf(aux->i2c.name, sizeof(aux->i2c.name), "nvkm-%s-aux-%04x", + dev_name(device->dev), id); + aux->i2c.owner = THIS_MODULE; + aux->i2c.dev.parent = device->dev; + aux->i2c.algo = &nvkm_i2c_aux_i2c_algo; + return i2c_add_adapter(&aux->i2c); +} + +int +nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *func, + struct nvkm_i2c_pad *pad, int id, + struct nvkm_i2c_aux **paux) +{ + if (!(*paux = kzalloc(sizeof(**paux), GFP_KERNEL))) + return -ENOMEM; + return nvkm_i2c_aux_ctor(func, pad, id, *paux); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h new file mode 100644 index 000000000..f920eabf8 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/aux.h @@ -0,0 +1,46 @@ +/* SPDX-License-Identifier: MIT */ +#ifndef __NVKM_I2C_AUX_H__ +#define __NVKM_I2C_AUX_H__ +#include "pad.h" + +static inline void +nvkm_i2c_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable) +{ + if (i2c->func->aux_autodpcd) + i2c->func->aux_autodpcd(i2c, aux, false); +} + +struct nvkm_i2c_aux_func { + bool address_only; + int (*xfer)(struct nvkm_i2c_aux *, bool retry, u8 type, + u32 addr, u8 *data, u8 *size); + int (*lnk_ctl)(struct nvkm_i2c_aux *, int link_nr, int link_bw, + bool enhanced_framing); +}; + +int nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *, + int id, struct nvkm_i2c_aux *); +int nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *, + int id, struct nvkm_i2c_aux **); +void nvkm_i2c_aux_del(struct nvkm_i2c_aux **); +void nvkm_i2c_aux_init(struct nvkm_i2c_aux *); +void nvkm_i2c_aux_fini(struct nvkm_i2c_aux *); +int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type, + u32 addr, u8 *data, u8 *size); + +int g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *, + int, u8, struct nvkm_i2c_aux **); + +int g94_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **); +int g94_i2c_aux_xfer(struct nvkm_i2c_aux *, bool, u8, u32, u8 *, u8 *); +int gf119_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **); +int gm200_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **); + +#define AUX_MSG(b,l,f,a...) do { \ + struct nvkm_i2c_aux *_aux = (b); \ + nvkm_##l(&_aux->pad->i2c->subdev, "aux %04x: "f"\n", _aux->id, ##a); \ +} while(0) +#define AUX_ERR(b,f,a...) AUX_MSG((b), error, f, ##a) +#define AUX_DBG(b,f,a...) AUX_MSG((b), debug, f, ##a) +#define AUX_TRACE(b,f,a...) AUX_MSG((b), trace, f, ##a) +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c new file mode 100644 index 000000000..47068f6f9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxg94.c @@ -0,0 +1,194 @@ +/* + * Copyright 2015 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 busions 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 <bskeggs@redhat.com> + */ +#define g94_i2c_aux(p) container_of((p), struct g94_i2c_aux, base) +#include "aux.h" + +struct g94_i2c_aux { + struct nvkm_i2c_aux base; + int ch; +}; + +static void +g94_i2c_aux_fini(struct g94_i2c_aux *aux) +{ + struct nvkm_device *device = aux->base.pad->i2c->subdev.device; + nvkm_mask(device, 0x00e4e4 + (aux->ch * 0x50), 0x00310000, 0x00000000); +} + +static int +g94_i2c_aux_init(struct g94_i2c_aux *aux) +{ + struct nvkm_device *device = aux->base.pad->i2c->subdev.device; + const u32 unksel = 1; /* nfi which to use, or if it matters.. */ + const u32 ureq = unksel ? 0x00100000 : 0x00200000; + const u32 urep = unksel ? 0x01000000 : 0x02000000; + u32 ctrl, timeout; + + /* wait up to 1ms for any previous transaction to be done... */ + timeout = 1000; + do { + ctrl = nvkm_rd32(device, 0x00e4e4 + (aux->ch * 0x50)); + udelay(1); + if (!timeout--) { + AUX_ERR(&aux->base, "begin idle timeout %08x", ctrl); + return -EBUSY; + } + } while (ctrl & 0x03010000); + + /* set some magic, and wait up to 1ms for it to appear */ + nvkm_mask(device, 0x00e4e4 + (aux->ch * 0x50), 0x00300000, ureq); + timeout = 1000; + do { + ctrl = nvkm_rd32(device, 0x00e4e4 + (aux->ch * 0x50)); + udelay(1); + if (!timeout--) { + AUX_ERR(&aux->base, "magic wait %08x", ctrl); + g94_i2c_aux_fini(aux); + return -EBUSY; + } + } while ((ctrl & 0x03000000) != urep); + + return 0; +} + +int +g94_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry, + u8 type, u32 addr, u8 *data, u8 *size) +{ + struct g94_i2c_aux *aux = g94_i2c_aux(obj); + struct nvkm_i2c *i2c = aux->base.pad->i2c; + struct nvkm_device *device = i2c->subdev.device; + const u32 base = aux->ch * 0x50; + u32 ctrl, stat, timeout, retries = 0; + u32 xbuf[4] = {}; + int ret, i; + + AUX_TRACE(&aux->base, "%d: %08x %d", type, addr, *size); + + ret = g94_i2c_aux_init(aux); + if (ret < 0) + goto out; + + stat = nvkm_rd32(device, 0x00e4e8 + base); + if (!(stat & 0x10000000)) { + AUX_TRACE(&aux->base, "sink not detected"); + ret = -ENXIO; + goto out; + } + + nvkm_i2c_aux_autodpcd(i2c, aux->ch, false); + + if (!(type & 1)) { + memcpy(xbuf, data, *size); + for (i = 0; i < 16; i += 4) { + AUX_TRACE(&aux->base, "wr %08x", xbuf[i / 4]); + nvkm_wr32(device, 0x00e4c0 + base + i, xbuf[i / 4]); + } + } + + ctrl = nvkm_rd32(device, 0x00e4e4 + base); + ctrl &= ~0x0001f1ff; + ctrl |= type << 12; + ctrl |= (*size ? (*size - 1) : 0x00000100); + nvkm_wr32(device, 0x00e4e0 + base, addr); + + /* (maybe) retry transaction a number of times on failure... */ + do { + /* reset, and delay a while if this is a retry */ + nvkm_wr32(device, 0x00e4e4 + base, 0x80000000 | ctrl); + nvkm_wr32(device, 0x00e4e4 + base, 0x00000000 | ctrl); + if (retries) + udelay(400); + + /* transaction request, wait up to 2ms for it to complete */ + nvkm_wr32(device, 0x00e4e4 + base, 0x00010000 | ctrl); + + timeout = 2000; + do { + ctrl = nvkm_rd32(device, 0x00e4e4 + base); + udelay(1); + if (!timeout--) { + AUX_ERR(&aux->base, "timeout %08x", ctrl); + ret = -EIO; + goto out_err; + } + } while (ctrl & 0x00010000); + ret = 0; + + /* read status, and check if transaction completed ok */ + stat = nvkm_mask(device, 0x00e4e8 + base, 0, 0); + if ((stat & 0x000f0000) == 0x00080000 || + (stat & 0x000f0000) == 0x00020000) + ret = 1; + if ((stat & 0x00000100)) + ret = -ETIMEDOUT; + if ((stat & 0x00000e00)) + ret = -EIO; + + AUX_TRACE(&aux->base, "%02d %08x %08x", retries, ctrl, stat); + } while (ret && retry && retries++ < 32); + + if (type & 1) { + for (i = 0; i < 16; i += 4) { + xbuf[i / 4] = nvkm_rd32(device, 0x00e4d0 + base + i); + AUX_TRACE(&aux->base, "rd %08x", xbuf[i / 4]); + } + memcpy(data, xbuf, *size); + *size = stat & 0x0000001f; + } +out_err: + nvkm_i2c_aux_autodpcd(i2c, aux->ch, true); +out: + g94_i2c_aux_fini(aux); + return ret < 0 ? ret : (stat & 0x000f0000) >> 16; +} + +int +g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *func, + struct nvkm_i2c_pad *pad, int index, u8 drive, + struct nvkm_i2c_aux **paux) +{ + struct g94_i2c_aux *aux; + + if (!(aux = kzalloc(sizeof(*aux), GFP_KERNEL))) + return -ENOMEM; + *paux = &aux->base; + + nvkm_i2c_aux_ctor(func, pad, index, &aux->base); + aux->ch = drive; + aux->base.intr = 1 << aux->ch; + return 0; +} + +static const struct nvkm_i2c_aux_func +g94_i2c_aux = { + .xfer = g94_i2c_aux_xfer, +}; + +int +g94_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive, + struct nvkm_i2c_aux **paux) +{ + return g94_i2c_aux_new_(&g94_i2c_aux, pad, index, drive, paux); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c new file mode 100644 index 000000000..dab40cd8f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgf119.c @@ -0,0 +1,35 @@ +/* + * Copyright 2017 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. + */ +#include "aux.h" + +static const struct nvkm_i2c_aux_func +gf119_i2c_aux = { + .address_only = true, + .xfer = g94_i2c_aux_xfer, +}; + +int +gf119_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive, + struct nvkm_i2c_aux **paux) +{ + return g94_i2c_aux_new_(&gf119_i2c_aux, pad, index, drive, paux); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c new file mode 100644 index 000000000..8bd1d442e --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/auxgm200.c @@ -0,0 +1,188 @@ +/* + * Copyright 2015 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 busions 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 <bskeggs@redhat.com> + */ +#define gm200_i2c_aux(p) container_of((p), struct gm200_i2c_aux, base) +#include "aux.h" + +struct gm200_i2c_aux { + struct nvkm_i2c_aux base; + int ch; +}; + +static void +gm200_i2c_aux_fini(struct gm200_i2c_aux *aux) +{ + struct nvkm_device *device = aux->base.pad->i2c->subdev.device; + nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00710000, 0x00000000); +} + +static int +gm200_i2c_aux_init(struct gm200_i2c_aux *aux) +{ + struct nvkm_device *device = aux->base.pad->i2c->subdev.device; + const u32 unksel = 1; /* nfi which to use, or if it matters.. */ + const u32 ureq = unksel ? 0x00100000 : 0x00200000; + const u32 urep = unksel ? 0x01000000 : 0x02000000; + u32 ctrl, timeout; + + /* wait up to 1ms for any previous transaction to be done... */ + timeout = 1000; + do { + ctrl = nvkm_rd32(device, 0x00d954 + (aux->ch * 0x50)); + udelay(1); + if (!timeout--) { + AUX_ERR(&aux->base, "begin idle timeout %08x", ctrl); + return -EBUSY; + } + } while (ctrl & 0x07010000); + + /* set some magic, and wait up to 1ms for it to appear */ + nvkm_mask(device, 0x00d954 + (aux->ch * 0x50), 0x00700000, ureq); + timeout = 1000; + do { + ctrl = nvkm_rd32(device, 0x00d954 + (aux->ch * 0x50)); + udelay(1); + if (!timeout--) { + AUX_ERR(&aux->base, "magic wait %08x", ctrl); + gm200_i2c_aux_fini(aux); + return -EBUSY; + } + } while ((ctrl & 0x07000000) != urep); + + return 0; +} + +static int +gm200_i2c_aux_xfer(struct nvkm_i2c_aux *obj, bool retry, + u8 type, u32 addr, u8 *data, u8 *size) +{ + struct gm200_i2c_aux *aux = gm200_i2c_aux(obj); + struct nvkm_i2c *i2c = aux->base.pad->i2c; + struct nvkm_device *device = i2c->subdev.device; + const u32 base = aux->ch * 0x50; + u32 ctrl, stat, timeout, retries = 0; + u32 xbuf[4] = {}; + int ret, i; + + AUX_TRACE(&aux->base, "%d: %08x %d", type, addr, *size); + + ret = gm200_i2c_aux_init(aux); + if (ret < 0) + goto out; + + stat = nvkm_rd32(device, 0x00d958 + base); + if (!(stat & 0x10000000)) { + AUX_TRACE(&aux->base, "sink not detected"); + ret = -ENXIO; + goto out; + } + + nvkm_i2c_aux_autodpcd(i2c, aux->ch, false); + + if (!(type & 1)) { + memcpy(xbuf, data, *size); + for (i = 0; i < 16; i += 4) { + AUX_TRACE(&aux->base, "wr %08x", xbuf[i / 4]); + nvkm_wr32(device, 0x00d930 + base + i, xbuf[i / 4]); + } + } + + ctrl = nvkm_rd32(device, 0x00d954 + base); + ctrl &= ~0x0001f1ff; + ctrl |= type << 12; + ctrl |= (*size ? (*size - 1) : 0x00000100); + nvkm_wr32(device, 0x00d950 + base, addr); + + /* (maybe) retry transaction a number of times on failure... */ + do { + /* reset, and delay a while if this is a retry */ + nvkm_wr32(device, 0x00d954 + base, 0x80000000 | ctrl); + nvkm_wr32(device, 0x00d954 + base, 0x00000000 | ctrl); + if (retries) + udelay(400); + + /* transaction request, wait up to 2ms for it to complete */ + nvkm_wr32(device, 0x00d954 + base, 0x00010000 | ctrl); + + timeout = 2000; + do { + ctrl = nvkm_rd32(device, 0x00d954 + base); + udelay(1); + if (!timeout--) { + AUX_ERR(&aux->base, "timeout %08x", ctrl); + ret = -EIO; + goto out_err; + } + } while (ctrl & 0x00010000); + ret = 0; + + /* read status, and check if transaction completed ok */ + stat = nvkm_mask(device, 0x00d958 + base, 0, 0); + if ((stat & 0x000f0000) == 0x00080000 || + (stat & 0x000f0000) == 0x00020000) + ret = 1; + if ((stat & 0x00000100)) + ret = -ETIMEDOUT; + if ((stat & 0x00000e00)) + ret = -EIO; + + AUX_TRACE(&aux->base, "%02d %08x %08x", retries, ctrl, stat); + } while (ret && retry && retries++ < 32); + + if (type & 1) { + for (i = 0; i < 16; i += 4) { + xbuf[i / 4] = nvkm_rd32(device, 0x00d940 + base + i); + AUX_TRACE(&aux->base, "rd %08x", xbuf[i / 4]); + } + memcpy(data, xbuf, *size); + *size = stat & 0x0000001f; + } + +out_err: + nvkm_i2c_aux_autodpcd(i2c, aux->ch, true); +out: + gm200_i2c_aux_fini(aux); + return ret < 0 ? ret : (stat & 0x000f0000) >> 16; +} + +static const struct nvkm_i2c_aux_func +gm200_i2c_aux_func = { + .address_only = true, + .xfer = gm200_i2c_aux_xfer, +}; + +int +gm200_i2c_aux_new(struct nvkm_i2c_pad *pad, int index, u8 drive, + struct nvkm_i2c_aux **paux) +{ + struct gm200_i2c_aux *aux; + + if (!(aux = kzalloc(sizeof(*aux), GFP_KERNEL))) + return -ENOMEM; + *paux = &aux->base; + + nvkm_i2c_aux_ctor(&gm200_i2c_aux_func, pad, index, &aux->base); + aux->ch = drive; + aux->base.intr = 1 << aux->ch; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c new file mode 100644 index 000000000..cb5cb533d --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/base.c @@ -0,0 +1,431 @@ +/* + * Copyright 2013 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 "priv.h" +#include "aux.h" +#include "bus.h" +#include "pad.h" + +#include <core/notify.h> +#include <core/option.h> +#include <subdev/bios.h> +#include <subdev/bios/dcb.h> +#include <subdev/bios/i2c.h> + +static struct nvkm_i2c_pad * +nvkm_i2c_pad_find(struct nvkm_i2c *i2c, int id) +{ + struct nvkm_i2c_pad *pad; + + list_for_each_entry(pad, &i2c->pad, head) { + if (pad->id == id) + return pad; + } + + return NULL; +} + +struct nvkm_i2c_bus * +nvkm_i2c_bus_find(struct nvkm_i2c *i2c, int id) +{ + struct nvkm_bios *bios = i2c->subdev.device->bios; + struct nvkm_i2c_bus *bus; + + if (id == NVKM_I2C_BUS_PRI || id == NVKM_I2C_BUS_SEC) { + u8 ver, hdr, cnt, len; + u16 i2c = dcb_i2c_table(bios, &ver, &hdr, &cnt, &len); + if (i2c && ver >= 0x30) { + u8 auxidx = nvbios_rd08(bios, i2c + 4); + if (id == NVKM_I2C_BUS_PRI) + id = NVKM_I2C_BUS_CCB((auxidx & 0x0f) >> 0); + else + id = NVKM_I2C_BUS_CCB((auxidx & 0xf0) >> 4); + } else { + id = NVKM_I2C_BUS_CCB(2); + } + } + + list_for_each_entry(bus, &i2c->bus, head) { + if (bus->id == id) + return bus; + } + + return NULL; +} + +struct nvkm_i2c_aux * +nvkm_i2c_aux_find(struct nvkm_i2c *i2c, int id) +{ + struct nvkm_i2c_aux *aux; + + list_for_each_entry(aux, &i2c->aux, head) { + if (aux->id == id) + return aux; + } + + return NULL; +} + +static void +nvkm_i2c_intr_fini(struct nvkm_event *event, int type, int id) +{ + struct nvkm_i2c *i2c = container_of(event, typeof(*i2c), event); + struct nvkm_i2c_aux *aux = nvkm_i2c_aux_find(i2c, id); + if (aux) + i2c->func->aux_mask(i2c, type, aux->intr, 0); +} + +static void +nvkm_i2c_intr_init(struct nvkm_event *event, int type, int id) +{ + struct nvkm_i2c *i2c = container_of(event, typeof(*i2c), event); + struct nvkm_i2c_aux *aux = nvkm_i2c_aux_find(i2c, id); + if (aux) + i2c->func->aux_mask(i2c, type, aux->intr, aux->intr); +} + +static int +nvkm_i2c_intr_ctor(struct nvkm_object *object, void *data, u32 size, + struct nvkm_notify *notify) +{ + struct nvkm_i2c_ntfy_req *req = data; + if (!WARN_ON(size != sizeof(*req))) { + notify->size = sizeof(struct nvkm_i2c_ntfy_rep); + notify->types = req->mask; + notify->index = req->port; + return 0; + } + return -EINVAL; +} + +static const struct nvkm_event_func +nvkm_i2c_intr_func = { + .ctor = nvkm_i2c_intr_ctor, + .init = nvkm_i2c_intr_init, + .fini = nvkm_i2c_intr_fini, +}; + +static void +nvkm_i2c_intr(struct nvkm_subdev *subdev) +{ + struct nvkm_i2c *i2c = nvkm_i2c(subdev); + struct nvkm_i2c_aux *aux; + u32 hi, lo, rq, tx; + + if (!i2c->func->aux_stat) + return; + + i2c->func->aux_stat(i2c, &hi, &lo, &rq, &tx); + if (!hi && !lo && !rq && !tx) + return; + + list_for_each_entry(aux, &i2c->aux, head) { + u32 mask = 0; + if (hi & aux->intr) mask |= NVKM_I2C_PLUG; + if (lo & aux->intr) mask |= NVKM_I2C_UNPLUG; + if (rq & aux->intr) mask |= NVKM_I2C_IRQ; + if (tx & aux->intr) mask |= NVKM_I2C_DONE; + if (mask) { + struct nvkm_i2c_ntfy_rep rep = { + .mask = mask, + }; + nvkm_event_send(&i2c->event, rep.mask, aux->id, + &rep, sizeof(rep)); + } + } +} + +static int +nvkm_i2c_fini(struct nvkm_subdev *subdev, bool suspend) +{ + struct nvkm_i2c *i2c = nvkm_i2c(subdev); + struct nvkm_i2c_pad *pad; + struct nvkm_i2c_bus *bus; + struct nvkm_i2c_aux *aux; + u32 mask; + + list_for_each_entry(aux, &i2c->aux, head) { + nvkm_i2c_aux_fini(aux); + } + + list_for_each_entry(bus, &i2c->bus, head) { + nvkm_i2c_bus_fini(bus); + } + + if ((mask = (1 << i2c->func->aux) - 1), i2c->func->aux_stat) { + i2c->func->aux_mask(i2c, NVKM_I2C_ANY, mask, 0); + i2c->func->aux_stat(i2c, &mask, &mask, &mask, &mask); + } + + list_for_each_entry(pad, &i2c->pad, head) { + nvkm_i2c_pad_fini(pad); + } + + return 0; +} + +static int +nvkm_i2c_preinit(struct nvkm_subdev *subdev) +{ + struct nvkm_i2c *i2c = nvkm_i2c(subdev); + struct nvkm_i2c_bus *bus; + struct nvkm_i2c_pad *pad; + + /* + * We init our i2c busses as early as possible, since they may be + * needed by the vbios init scripts on some cards + */ + list_for_each_entry(pad, &i2c->pad, head) + nvkm_i2c_pad_init(pad); + list_for_each_entry(bus, &i2c->bus, head) + nvkm_i2c_bus_init(bus); + + return 0; +} + +static int +nvkm_i2c_init(struct nvkm_subdev *subdev) +{ + struct nvkm_i2c *i2c = nvkm_i2c(subdev); + struct nvkm_i2c_bus *bus; + struct nvkm_i2c_pad *pad; + struct nvkm_i2c_aux *aux; + + list_for_each_entry(pad, &i2c->pad, head) { + nvkm_i2c_pad_init(pad); + } + + list_for_each_entry(bus, &i2c->bus, head) { + nvkm_i2c_bus_init(bus); + } + + list_for_each_entry(aux, &i2c->aux, head) { + nvkm_i2c_aux_init(aux); + } + + return 0; +} + +static void * +nvkm_i2c_dtor(struct nvkm_subdev *subdev) +{ + struct nvkm_i2c *i2c = nvkm_i2c(subdev); + + nvkm_event_fini(&i2c->event); + + while (!list_empty(&i2c->aux)) { + struct nvkm_i2c_aux *aux = + list_first_entry(&i2c->aux, typeof(*aux), head); + nvkm_i2c_aux_del(&aux); + } + + while (!list_empty(&i2c->bus)) { + struct nvkm_i2c_bus *bus = + list_first_entry(&i2c->bus, typeof(*bus), head); + nvkm_i2c_bus_del(&bus); + } + + while (!list_empty(&i2c->pad)) { + struct nvkm_i2c_pad *pad = + list_first_entry(&i2c->pad, typeof(*pad), head); + nvkm_i2c_pad_del(&pad); + } + + return i2c; +} + +static const struct nvkm_subdev_func +nvkm_i2c = { + .dtor = nvkm_i2c_dtor, + .preinit = nvkm_i2c_preinit, + .init = nvkm_i2c_init, + .fini = nvkm_i2c_fini, + .intr = nvkm_i2c_intr, +}; + +static const struct nvkm_i2c_drv { + u8 bios; + u8 addr; + int (*pad_new)(struct nvkm_i2c_bus *, int id, u8 addr, + struct nvkm_i2c_pad **); +} +nvkm_i2c_drv[] = { + { 0x0d, 0x39, anx9805_pad_new }, + { 0x0e, 0x3b, anx9805_pad_new }, + {} +}; + +int +nvkm_i2c_new_(const struct nvkm_i2c_func *func, struct nvkm_device *device, + enum nvkm_subdev_type type, int inst, struct nvkm_i2c **pi2c) +{ + struct nvkm_bios *bios = device->bios; + struct nvkm_i2c *i2c; + struct dcb_i2c_entry ccbE; + struct dcb_output dcbE; + u8 ver, hdr; + int ret, i; + + if (!(i2c = *pi2c = kzalloc(sizeof(*i2c), GFP_KERNEL))) + return -ENOMEM; + + nvkm_subdev_ctor(&nvkm_i2c, device, type, inst, &i2c->subdev); + i2c->func = func; + INIT_LIST_HEAD(&i2c->pad); + INIT_LIST_HEAD(&i2c->bus); + INIT_LIST_HEAD(&i2c->aux); + + i = -1; + while (!dcb_i2c_parse(bios, ++i, &ccbE)) { + struct nvkm_i2c_pad *pad = NULL; + struct nvkm_i2c_bus *bus = NULL; + struct nvkm_i2c_aux *aux = NULL; + + nvkm_debug(&i2c->subdev, "ccb %02x: type %02x drive %02x " + "sense %02x share %02x auxch %02x\n", i, ccbE.type, + ccbE.drive, ccbE.sense, ccbE.share, ccbE.auxch); + + if (ccbE.share != DCB_I2C_UNUSED) { + const int id = NVKM_I2C_PAD_HYBRID(ccbE.share); + if (!(pad = nvkm_i2c_pad_find(i2c, id))) + ret = func->pad_s_new(i2c, id, &pad); + else + ret = 0; + } else { + ret = func->pad_x_new(i2c, NVKM_I2C_PAD_CCB(i), &pad); + } + + if (ret) { + nvkm_error(&i2c->subdev, "ccb %02x pad, %d\n", i, ret); + nvkm_i2c_pad_del(&pad); + continue; + } + + if (pad->func->bus_new_0 && ccbE.type == DCB_I2C_NV04_BIT) { + ret = pad->func->bus_new_0(pad, NVKM_I2C_BUS_CCB(i), + ccbE.drive, + ccbE.sense, &bus); + } else + if (pad->func->bus_new_4 && + ( ccbE.type == DCB_I2C_NV4E_BIT || + ccbE.type == DCB_I2C_NVIO_BIT || + (ccbE.type == DCB_I2C_PMGR && + ccbE.drive != DCB_I2C_UNUSED))) { + ret = pad->func->bus_new_4(pad, NVKM_I2C_BUS_CCB(i), + ccbE.drive, &bus); + } + + if (ret) { + nvkm_error(&i2c->subdev, "ccb %02x bus, %d\n", i, ret); + nvkm_i2c_bus_del(&bus); + } + + if (pad->func->aux_new_6 && + ( ccbE.type == DCB_I2C_NVIO_AUX || + (ccbE.type == DCB_I2C_PMGR && + ccbE.auxch != DCB_I2C_UNUSED))) { + ret = pad->func->aux_new_6(pad, NVKM_I2C_BUS_CCB(i), + ccbE.auxch, &aux); + } else { + ret = 0; + } + + if (ret) { + nvkm_error(&i2c->subdev, "ccb %02x aux, %d\n", i, ret); + nvkm_i2c_aux_del(&aux); + } + + if (ccbE.type != DCB_I2C_UNUSED && !bus && !aux) { + nvkm_warn(&i2c->subdev, "ccb %02x was ignored\n", i); + continue; + } + } + + i = -1; + while (dcb_outp_parse(bios, ++i, &ver, &hdr, &dcbE)) { + const struct nvkm_i2c_drv *drv = nvkm_i2c_drv; + struct nvkm_i2c_bus *bus; + struct nvkm_i2c_pad *pad; + + /* internal outputs handled by native i2c busses (above) */ + if (!dcbE.location) + continue; + + /* we need an i2c bus to talk to the external encoder */ + bus = nvkm_i2c_bus_find(i2c, dcbE.i2c_index); + if (!bus) { + nvkm_debug(&i2c->subdev, "dcb %02x no bus\n", i); + continue; + } + + /* ... and a driver for it */ + while (drv->pad_new) { + if (drv->bios == dcbE.extdev) + break; + drv++; + } + + if (!drv->pad_new) { + nvkm_debug(&i2c->subdev, "dcb %02x drv %02x unknown\n", + i, dcbE.extdev); + continue; + } + + /* find/create an instance of the driver */ + pad = nvkm_i2c_pad_find(i2c, NVKM_I2C_PAD_EXT(dcbE.extdev)); + if (!pad) { + const int id = NVKM_I2C_PAD_EXT(dcbE.extdev); + ret = drv->pad_new(bus, id, drv->addr, &pad); + if (ret) { + nvkm_error(&i2c->subdev, "dcb %02x pad, %d\n", + i, ret); + nvkm_i2c_pad_del(&pad); + continue; + } + } + + /* create any i2c bus / aux channel required by the output */ + if (pad->func->aux_new_6 && dcbE.type == DCB_OUTPUT_DP) { + const int id = NVKM_I2C_AUX_EXT(dcbE.extdev); + struct nvkm_i2c_aux *aux = NULL; + ret = pad->func->aux_new_6(pad, id, 0, &aux); + if (ret) { + nvkm_error(&i2c->subdev, "dcb %02x aux, %d\n", + i, ret); + nvkm_i2c_aux_del(&aux); + } + } else + if (pad->func->bus_new_4) { + const int id = NVKM_I2C_BUS_EXT(dcbE.extdev); + struct nvkm_i2c_bus *bus = NULL; + ret = pad->func->bus_new_4(pad, id, 0, &bus); + if (ret) { + nvkm_error(&i2c->subdev, "dcb %02x bus, %d\n", + i, ret); + nvkm_i2c_bus_del(&bus); + } + } + } + + return nvkm_event_init(&nvkm_i2c_intr_func, 4, i, &i2c->event); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c new file mode 100644 index 000000000..cdce11bba --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bit.c @@ -0,0 +1,216 @@ +/* + * Copyright 2012 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 busions 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 "bus.h" + +#ifdef CONFIG_NOUVEAU_I2C_INTERNAL +#define T_TIMEOUT 2200000 +#define T_RISEFALL 1000 +#define T_HOLD 5000 + +static inline void +nvkm_i2c_drive_scl(struct nvkm_i2c_bus *bus, int state) +{ + bus->func->drive_scl(bus, state); +} + +static inline void +nvkm_i2c_drive_sda(struct nvkm_i2c_bus *bus, int state) +{ + bus->func->drive_sda(bus, state); +} + +static inline int +nvkm_i2c_sense_scl(struct nvkm_i2c_bus *bus) +{ + return bus->func->sense_scl(bus); +} + +static inline int +nvkm_i2c_sense_sda(struct nvkm_i2c_bus *bus) +{ + return bus->func->sense_sda(bus); +} + +static void +nvkm_i2c_delay(struct nvkm_i2c_bus *bus, u32 nsec) +{ + udelay((nsec + 500) / 1000); +} + +static bool +nvkm_i2c_raise_scl(struct nvkm_i2c_bus *bus) +{ + u32 timeout = T_TIMEOUT / T_RISEFALL; + + nvkm_i2c_drive_scl(bus, 1); + do { + nvkm_i2c_delay(bus, T_RISEFALL); + } while (!nvkm_i2c_sense_scl(bus) && --timeout); + + return timeout != 0; +} + +static int +i2c_start(struct nvkm_i2c_bus *bus) +{ + int ret = 0; + + if (!nvkm_i2c_sense_scl(bus) || + !nvkm_i2c_sense_sda(bus)) { + nvkm_i2c_drive_scl(bus, 0); + nvkm_i2c_drive_sda(bus, 1); + if (!nvkm_i2c_raise_scl(bus)) + ret = -EBUSY; + } + + nvkm_i2c_drive_sda(bus, 0); + nvkm_i2c_delay(bus, T_HOLD); + nvkm_i2c_drive_scl(bus, 0); + nvkm_i2c_delay(bus, T_HOLD); + return ret; +} + +static void +i2c_stop(struct nvkm_i2c_bus *bus) +{ + nvkm_i2c_drive_scl(bus, 0); + nvkm_i2c_drive_sda(bus, 0); + nvkm_i2c_delay(bus, T_RISEFALL); + + nvkm_i2c_drive_scl(bus, 1); + nvkm_i2c_delay(bus, T_HOLD); + nvkm_i2c_drive_sda(bus, 1); + nvkm_i2c_delay(bus, T_HOLD); +} + +static int +i2c_bitw(struct nvkm_i2c_bus *bus, int sda) +{ + nvkm_i2c_drive_sda(bus, sda); + nvkm_i2c_delay(bus, T_RISEFALL); + + if (!nvkm_i2c_raise_scl(bus)) + return -ETIMEDOUT; + nvkm_i2c_delay(bus, T_HOLD); + + nvkm_i2c_drive_scl(bus, 0); + nvkm_i2c_delay(bus, T_HOLD); + return 0; +} + +static int +i2c_bitr(struct nvkm_i2c_bus *bus) +{ + int sda; + + nvkm_i2c_drive_sda(bus, 1); + nvkm_i2c_delay(bus, T_RISEFALL); + + if (!nvkm_i2c_raise_scl(bus)) + return -ETIMEDOUT; + nvkm_i2c_delay(bus, T_HOLD); + + sda = nvkm_i2c_sense_sda(bus); + + nvkm_i2c_drive_scl(bus, 0); + nvkm_i2c_delay(bus, T_HOLD); + return sda; +} + +static int +nvkm_i2c_get_byte(struct nvkm_i2c_bus *bus, u8 *byte, bool last) +{ + int i, bit; + + *byte = 0; + for (i = 7; i >= 0; i--) { + bit = i2c_bitr(bus); + if (bit < 0) + return bit; + *byte |= bit << i; + } + + return i2c_bitw(bus, last ? 1 : 0); +} + +static int +nvkm_i2c_put_byte(struct nvkm_i2c_bus *bus, u8 byte) +{ + int i, ret; + for (i = 7; i >= 0; i--) { + ret = i2c_bitw(bus, !!(byte & (1 << i))); + if (ret < 0) + return ret; + } + + ret = i2c_bitr(bus); + if (ret == 1) /* nack */ + ret = -EIO; + return ret; +} + +static int +i2c_addr(struct nvkm_i2c_bus *bus, struct i2c_msg *msg) +{ + u32 addr = msg->addr << 1; + if (msg->flags & I2C_M_RD) + addr |= 1; + return nvkm_i2c_put_byte(bus, addr); +} + +int +nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *bus, struct i2c_msg *msgs, int num) +{ + struct i2c_msg *msg = msgs; + int ret = 0, mcnt = num; + + while (!ret && mcnt--) { + u8 remaining = msg->len; + u8 *ptr = msg->buf; + + ret = i2c_start(bus); + if (ret == 0) + ret = i2c_addr(bus, msg); + + if (msg->flags & I2C_M_RD) { + while (!ret && remaining--) + ret = nvkm_i2c_get_byte(bus, ptr++, !remaining); + } else { + while (!ret && remaining--) + ret = nvkm_i2c_put_byte(bus, *ptr++); + } + + msg++; + } + + i2c_stop(bus); + return (ret < 0) ? ret : num; +} +#else +int +nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *bus, struct i2c_msg *msgs, int num) +{ + return -ENODEV; +} +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c new file mode 100644 index 000000000..ed50cc373 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.c @@ -0,0 +1,264 @@ +/* + * Copyright 2015 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 <bskeggs@redhat.com> + */ +#include "bus.h" +#include "pad.h" + +#include <core/option.h> + +/******************************************************************************* + * i2c-algo-bit + ******************************************************************************/ +static int +nvkm_i2c_bus_pre_xfer(struct i2c_adapter *adap) +{ + struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c); + return nvkm_i2c_bus_acquire(bus); +} + +static void +nvkm_i2c_bus_post_xfer(struct i2c_adapter *adap) +{ + struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c); + return nvkm_i2c_bus_release(bus); +} + +static void +nvkm_i2c_bus_setscl(void *data, int state) +{ + struct nvkm_i2c_bus *bus = data; + bus->func->drive_scl(bus, state); +} + +static void +nvkm_i2c_bus_setsda(void *data, int state) +{ + struct nvkm_i2c_bus *bus = data; + bus->func->drive_sda(bus, state); +} + +static int +nvkm_i2c_bus_getscl(void *data) +{ + struct nvkm_i2c_bus *bus = data; + return bus->func->sense_scl(bus); +} + +static int +nvkm_i2c_bus_getsda(void *data) +{ + struct nvkm_i2c_bus *bus = data; + return bus->func->sense_sda(bus); +} + +/******************************************************************************* + * !i2c-algo-bit (off-chip i2c bus / hw i2c / internal bit-banging algo) + ******************************************************************************/ +static int +nvkm_i2c_bus_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num) +{ + struct nvkm_i2c_bus *bus = container_of(adap, typeof(*bus), i2c); + int ret; + + ret = nvkm_i2c_bus_acquire(bus); + if (ret) + return ret; + + ret = bus->func->xfer(bus, msgs, num); + nvkm_i2c_bus_release(bus); + return ret; +} + +static u32 +nvkm_i2c_bus_func(struct i2c_adapter *adap) +{ + return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL; +} + +static const struct i2c_algorithm +nvkm_i2c_bus_algo = { + .master_xfer = nvkm_i2c_bus_xfer, + .functionality = nvkm_i2c_bus_func, +}; + +/******************************************************************************* + * nvkm_i2c_bus base + ******************************************************************************/ +void +nvkm_i2c_bus_init(struct nvkm_i2c_bus *bus) +{ + BUS_TRACE(bus, "init"); + if (bus->func->init) + bus->func->init(bus); + + mutex_lock(&bus->mutex); + bus->enabled = true; + mutex_unlock(&bus->mutex); +} + +void +nvkm_i2c_bus_fini(struct nvkm_i2c_bus *bus) +{ + BUS_TRACE(bus, "fini"); + mutex_lock(&bus->mutex); + bus->enabled = false; + mutex_unlock(&bus->mutex); +} + +void +nvkm_i2c_bus_release(struct nvkm_i2c_bus *bus) +{ + struct nvkm_i2c_pad *pad = bus->pad; + BUS_TRACE(bus, "release"); + nvkm_i2c_pad_release(pad); + mutex_unlock(&bus->mutex); +} + +int +nvkm_i2c_bus_acquire(struct nvkm_i2c_bus *bus) +{ + struct nvkm_i2c_pad *pad = bus->pad; + int ret; + + BUS_TRACE(bus, "acquire"); + mutex_lock(&bus->mutex); + + if (bus->enabled) + ret = nvkm_i2c_pad_acquire(pad, NVKM_I2C_PAD_I2C); + else + ret = -EIO; + + if (ret) + mutex_unlock(&bus->mutex); + return ret; +} + +int +nvkm_i2c_bus_probe(struct nvkm_i2c_bus *bus, const char *what, + struct nvkm_i2c_bus_probe *info, + bool (*match)(struct nvkm_i2c_bus *, + struct i2c_board_info *, void *), void *data) +{ + int i; + + BUS_DBG(bus, "probing %ss", what); + for (i = 0; info[i].dev.addr; i++) { + u8 orig_udelay = 0; + + if ((bus->i2c.algo == &i2c_bit_algo) && (info[i].udelay != 0)) { + struct i2c_algo_bit_data *algo = bus->i2c.algo_data; + BUS_DBG(bus, "%dms delay instead of %dms", + info[i].udelay, algo->udelay); + orig_udelay = algo->udelay; + algo->udelay = info[i].udelay; + } + + if (nvkm_probe_i2c(&bus->i2c, info[i].dev.addr) && + (!match || match(bus, &info[i].dev, data))) { + BUS_DBG(bus, "detected %s: %s", + what, info[i].dev.type); + return i; + } + + if (orig_udelay) { + struct i2c_algo_bit_data *algo = bus->i2c.algo_data; + algo->udelay = orig_udelay; + } + } + + BUS_DBG(bus, "no devices found."); + return -ENODEV; +} + +void +nvkm_i2c_bus_del(struct nvkm_i2c_bus **pbus) +{ + struct nvkm_i2c_bus *bus = *pbus; + if (bus && !WARN_ON(!bus->func)) { + BUS_TRACE(bus, "dtor"); + list_del(&bus->head); + i2c_del_adapter(&bus->i2c); + kfree(bus->i2c.algo_data); + kfree(*pbus); + *pbus = NULL; + } +} + +int +nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *func, + struct nvkm_i2c_pad *pad, int id, + struct nvkm_i2c_bus *bus) +{ + struct nvkm_device *device = pad->i2c->subdev.device; + struct i2c_algo_bit_data *bit; +#ifndef CONFIG_NOUVEAU_I2C_INTERNAL_DEFAULT + const bool internal = false; +#else + const bool internal = true; +#endif + int ret; + + bus->func = func; + bus->pad = pad; + bus->id = id; + mutex_init(&bus->mutex); + list_add_tail(&bus->head, &pad->i2c->bus); + BUS_TRACE(bus, "ctor"); + + snprintf(bus->i2c.name, sizeof(bus->i2c.name), "nvkm-%s-bus-%04x", + dev_name(device->dev), id); + bus->i2c.owner = THIS_MODULE; + bus->i2c.dev.parent = device->dev; + + if ( bus->func->drive_scl && + !nvkm_boolopt(device->cfgopt, "NvI2C", internal)) { + if (!(bit = kzalloc(sizeof(*bit), GFP_KERNEL))) + return -ENOMEM; + bit->udelay = 10; + bit->timeout = usecs_to_jiffies(2200); + bit->data = bus; + bit->pre_xfer = nvkm_i2c_bus_pre_xfer; + bit->post_xfer = nvkm_i2c_bus_post_xfer; + bit->setscl = nvkm_i2c_bus_setscl; + bit->setsda = nvkm_i2c_bus_setsda; + bit->getscl = nvkm_i2c_bus_getscl; + bit->getsda = nvkm_i2c_bus_getsda; + bus->i2c.algo_data = bit; + ret = i2c_bit_add_bus(&bus->i2c); + } else { + bus->i2c.algo = &nvkm_i2c_bus_algo; + ret = i2c_add_adapter(&bus->i2c); + } + + return ret; +} + +int +nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *func, + struct nvkm_i2c_pad *pad, int id, + struct nvkm_i2c_bus **pbus) +{ + if (!(*pbus = kzalloc(sizeof(**pbus), GFP_KERNEL))) + return -ENOMEM; + return nvkm_i2c_bus_ctor(func, pad, id, *pbus); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h new file mode 100644 index 000000000..4c236ab34 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/bus.h @@ -0,0 +1,39 @@ +/* SPDX-License-Identifier: MIT */ +#ifndef __NVKM_I2C_BUS_H__ +#define __NVKM_I2C_BUS_H__ +#include "pad.h" + +struct nvkm_i2c_bus_func { + void (*init)(struct nvkm_i2c_bus *); + void (*drive_scl)(struct nvkm_i2c_bus *, int state); + void (*drive_sda)(struct nvkm_i2c_bus *, int state); + int (*sense_scl)(struct nvkm_i2c_bus *); + int (*sense_sda)(struct nvkm_i2c_bus *); + int (*xfer)(struct nvkm_i2c_bus *, struct i2c_msg *, int num); +}; + +int nvkm_i2c_bus_ctor(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, + int id, struct nvkm_i2c_bus *); +int nvkm_i2c_bus_new_(const struct nvkm_i2c_bus_func *, struct nvkm_i2c_pad *, + int id, struct nvkm_i2c_bus **); +void nvkm_i2c_bus_del(struct nvkm_i2c_bus **); +void nvkm_i2c_bus_init(struct nvkm_i2c_bus *); +void nvkm_i2c_bus_fini(struct nvkm_i2c_bus *); + +int nvkm_i2c_bit_xfer(struct nvkm_i2c_bus *, struct i2c_msg *, int); + +int nv04_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, u8, + struct nvkm_i2c_bus **); + +int nv4e_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); +int nv50_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); +int gf119_i2c_bus_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_bus **); + +#define BUS_MSG(b,l,f,a...) do { \ + struct nvkm_i2c_bus *_bus = (b); \ + nvkm_##l(&_bus->pad->i2c->subdev, "bus %04x: "f"\n", _bus->id, ##a); \ +} while(0) +#define BUS_ERR(b,f,a...) BUS_MSG((b), error, f, ##a) +#define BUS_DBG(b,f,a...) BUS_MSG((b), debug, f, ##a) +#define BUS_TRACE(b,f,a...) BUS_MSG((b), trace, f, ##a) +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c new file mode 100644 index 000000000..96bbdda0f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busgf119.c @@ -0,0 +1,95 @@ +/* + * Copyright 2015 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 busions 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 <bskeggs@redhat.com> + */ +#define gf119_i2c_bus(p) container_of((p), struct gf119_i2c_bus, base) +#include "bus.h" + +struct gf119_i2c_bus { + struct nvkm_i2c_bus base; + u32 addr; +}; + +static void +gf119_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state) +{ + struct gf119_i2c_bus *bus = gf119_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + nvkm_mask(device, bus->addr, 0x00000001, state ? 0x00000001 : 0); +} + +static void +gf119_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state) +{ + struct gf119_i2c_bus *bus = gf119_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + nvkm_mask(device, bus->addr, 0x00000002, state ? 0x00000002 : 0); +} + +static int +gf119_i2c_bus_sense_scl(struct nvkm_i2c_bus *base) +{ + struct gf119_i2c_bus *bus = gf119_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rd32(device, bus->addr) & 0x00000010); +} + +static int +gf119_i2c_bus_sense_sda(struct nvkm_i2c_bus *base) +{ + struct gf119_i2c_bus *bus = gf119_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rd32(device, bus->addr) & 0x00000020); +} + +static void +gf119_i2c_bus_init(struct nvkm_i2c_bus *base) +{ + struct gf119_i2c_bus *bus = gf119_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + nvkm_wr32(device, bus->addr, 0x00000007); +} + +static const struct nvkm_i2c_bus_func +gf119_i2c_bus_func = { + .init = gf119_i2c_bus_init, + .drive_scl = gf119_i2c_bus_drive_scl, + .drive_sda = gf119_i2c_bus_drive_sda, + .sense_scl = gf119_i2c_bus_sense_scl, + .sense_sda = gf119_i2c_bus_sense_sda, + .xfer = nvkm_i2c_bit_xfer, +}; + +int +gf119_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive, + struct nvkm_i2c_bus **pbus) +{ + struct gf119_i2c_bus *bus; + + if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL))) + return -ENOMEM; + *pbus = &bus->base; + + nvkm_i2c_bus_ctor(&gf119_i2c_bus_func, pad, id, &bus->base); + bus->addr = 0x00d014 + (drive * 0x20); + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c new file mode 100644 index 000000000..a58db1592 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv04.c @@ -0,0 +1,96 @@ +/* + * Copyright 2015 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 busions 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 <bskeggs@redhat.com> + */ +#define nv04_i2c_bus(p) container_of((p), struct nv04_i2c_bus, base) +#include "bus.h" + +#include <subdev/vga.h> + +struct nv04_i2c_bus { + struct nvkm_i2c_bus base; + u8 drive; + u8 sense; +}; + +static void +nv04_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state) +{ + struct nv04_i2c_bus *bus = nv04_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + u8 val = nvkm_rdvgac(device, 0, bus->drive); + if (state) val |= 0x20; + else val &= 0xdf; + nvkm_wrvgac(device, 0, bus->drive, val | 0x01); +} + +static void +nv04_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state) +{ + struct nv04_i2c_bus *bus = nv04_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + u8 val = nvkm_rdvgac(device, 0, bus->drive); + if (state) val |= 0x10; + else val &= 0xef; + nvkm_wrvgac(device, 0, bus->drive, val | 0x01); +} + +static int +nv04_i2c_bus_sense_scl(struct nvkm_i2c_bus *base) +{ + struct nv04_i2c_bus *bus = nv04_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rdvgac(device, 0, bus->sense) & 0x04); +} + +static int +nv04_i2c_bus_sense_sda(struct nvkm_i2c_bus *base) +{ + struct nv04_i2c_bus *bus = nv04_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rdvgac(device, 0, bus->sense) & 0x08); +} + +static const struct nvkm_i2c_bus_func +nv04_i2c_bus_func = { + .drive_scl = nv04_i2c_bus_drive_scl, + .drive_sda = nv04_i2c_bus_drive_sda, + .sense_scl = nv04_i2c_bus_sense_scl, + .sense_sda = nv04_i2c_bus_sense_sda, + .xfer = nvkm_i2c_bit_xfer, +}; + +int +nv04_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive, u8 sense, + struct nvkm_i2c_bus **pbus) +{ + struct nv04_i2c_bus *bus; + + if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL))) + return -ENOMEM; + *pbus = &bus->base; + + nvkm_i2c_bus_ctor(&nv04_i2c_bus_func, pad, id, &bus->base); + bus->drive = drive; + bus->sense = sense; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c new file mode 100644 index 000000000..cdd73dcb1 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv4e.c @@ -0,0 +1,86 @@ +/* + * Copyright 2015 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 busions 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 <bskeggs@redhat.com> + */ +#define nv4e_i2c_bus(p) container_of((p), struct nv4e_i2c_bus, base) +#include "bus.h" + +struct nv4e_i2c_bus { + struct nvkm_i2c_bus base; + u32 addr; +}; + +static void +nv4e_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state) +{ + struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + nvkm_mask(device, bus->addr, 0x2f, state ? 0x21 : 0x01); +} + +static void +nv4e_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state) +{ + struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + nvkm_mask(device, bus->addr, 0x1f, state ? 0x11 : 0x01); +} + +static int +nv4e_i2c_bus_sense_scl(struct nvkm_i2c_bus *base) +{ + struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rd32(device, bus->addr) & 0x00040000); +} + +static int +nv4e_i2c_bus_sense_sda(struct nvkm_i2c_bus *base) +{ + struct nv4e_i2c_bus *bus = nv4e_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rd32(device, bus->addr) & 0x00080000); +} + +static const struct nvkm_i2c_bus_func +nv4e_i2c_bus_func = { + .drive_scl = nv4e_i2c_bus_drive_scl, + .drive_sda = nv4e_i2c_bus_drive_sda, + .sense_scl = nv4e_i2c_bus_sense_scl, + .sense_sda = nv4e_i2c_bus_sense_sda, + .xfer = nvkm_i2c_bit_xfer, +}; + +int +nv4e_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive, + struct nvkm_i2c_bus **pbus) +{ + struct nv4e_i2c_bus *bus; + + if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL))) + return -ENOMEM; + *pbus = &bus->base; + + nvkm_i2c_bus_ctor(&nv4e_i2c_bus_func, pad, id, &bus->base); + bus->addr = 0x600800 + drive; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c new file mode 100644 index 000000000..8db839938 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/busnv50.c @@ -0,0 +1,113 @@ +/* + * Copyright 2015 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 busions 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 <bskeggs@redhat.com> + */ +#define nv50_i2c_bus(p) container_of((p), struct nv50_i2c_bus, base) +#include "bus.h" + +#include <subdev/vga.h> + +struct nv50_i2c_bus { + struct nvkm_i2c_bus base; + u32 addr; + u32 data; +}; + +static void +nv50_i2c_bus_drive_scl(struct nvkm_i2c_bus *base, int state) +{ + struct nv50_i2c_bus *bus = nv50_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + if (state) bus->data |= 0x01; + else bus->data &= 0xfe; + nvkm_wr32(device, bus->addr, bus->data); +} + +static void +nv50_i2c_bus_drive_sda(struct nvkm_i2c_bus *base, int state) +{ + struct nv50_i2c_bus *bus = nv50_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + if (state) bus->data |= 0x02; + else bus->data &= 0xfd; + nvkm_wr32(device, bus->addr, bus->data); +} + +static int +nv50_i2c_bus_sense_scl(struct nvkm_i2c_bus *base) +{ + struct nv50_i2c_bus *bus = nv50_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rd32(device, bus->addr) & 0x00000001); +} + +static int +nv50_i2c_bus_sense_sda(struct nvkm_i2c_bus *base) +{ + struct nv50_i2c_bus *bus = nv50_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + return !!(nvkm_rd32(device, bus->addr) & 0x00000002); +} + +static void +nv50_i2c_bus_init(struct nvkm_i2c_bus *base) +{ + struct nv50_i2c_bus *bus = nv50_i2c_bus(base); + struct nvkm_device *device = bus->base.pad->i2c->subdev.device; + nvkm_wr32(device, bus->addr, (bus->data = 0x00000007)); +} + +static const struct nvkm_i2c_bus_func +nv50_i2c_bus_func = { + .init = nv50_i2c_bus_init, + .drive_scl = nv50_i2c_bus_drive_scl, + .drive_sda = nv50_i2c_bus_drive_sda, + .sense_scl = nv50_i2c_bus_sense_scl, + .sense_sda = nv50_i2c_bus_sense_sda, + .xfer = nvkm_i2c_bit_xfer, +}; + +int +nv50_i2c_bus_new(struct nvkm_i2c_pad *pad, int id, u8 drive, + struct nvkm_i2c_bus **pbus) +{ + static const u32 addr[] = { + 0x00e138, 0x00e150, 0x00e168, 0x00e180, + 0x00e254, 0x00e274, 0x00e764, 0x00e780, + 0x00e79c, 0x00e7b8 + }; + struct nv50_i2c_bus *bus; + + if (drive >= ARRAY_SIZE(addr)) { + nvkm_warn(&pad->i2c->subdev, "bus %d unknown\n", drive); + return -ENODEV; + } + + if (!(bus = kzalloc(sizeof(*bus), GFP_KERNEL))) + return -ENOMEM; + *pbus = &bus->base; + + nvkm_i2c_bus_ctor(&nv50_i2c_bus_func, pad, id, &bus->base); + bus->addr = addr[drive]; + bus->data = 0x00000007; + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c new file mode 100644 index 000000000..e5bad085c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/g94.c @@ -0,0 +1,73 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +void +g94_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx) +{ + struct nvkm_device *device = i2c->subdev.device; + u32 intr = nvkm_rd32(device, 0x00e06c); + u32 stat = nvkm_rd32(device, 0x00e068) & intr, i; + for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) { + if ((stat & (1 << (i * 4)))) *hi |= 1 << i; + if ((stat & (2 << (i * 4)))) *lo |= 1 << i; + if ((stat & (4 << (i * 4)))) *rq |= 1 << i; + if ((stat & (8 << (i * 4)))) *tx |= 1 << i; + } + nvkm_wr32(device, 0x00e06c, intr); +} + +void +g94_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data) +{ + struct nvkm_device *device = i2c->subdev.device; + u32 temp = nvkm_rd32(device, 0x00e068), i; + for (i = 0; i < 8; i++) { + if (mask & (1 << i)) { + if (!(data & (1 << i))) { + temp &= ~(type << (i * 4)); + continue; + } + temp |= type << (i * 4); + } + } + nvkm_wr32(device, 0x00e068, temp); +} + +static const struct nvkm_i2c_func +g94_i2c = { + .pad_x_new = g94_i2c_pad_x_new, + .pad_s_new = g94_i2c_pad_s_new, + .aux = 4, + .aux_stat = g94_aux_stat, + .aux_mask = g94_aux_mask, +}; + +int +g94_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&g94_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c new file mode 100644 index 000000000..cda30ee67 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf117.c @@ -0,0 +1,37 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +static const struct nvkm_i2c_func +gf117_i2c = { + .pad_x_new = gf119_i2c_pad_x_new, +}; + +int +gf117_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&gf117_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c new file mode 100644 index 000000000..e9c6a6cca --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gf119.c @@ -0,0 +1,41 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +static const struct nvkm_i2c_func +gf119_i2c = { + .pad_x_new = gf119_i2c_pad_x_new, + .pad_s_new = gf119_i2c_pad_s_new, + .aux = 4, + .aux_stat = g94_aux_stat, + .aux_mask = g94_aux_mask, +}; + +int +gf119_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&gf119_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c new file mode 100644 index 000000000..d35aa6fe3 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk104.c @@ -0,0 +1,73 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +void +gk104_aux_stat(struct nvkm_i2c *i2c, u32 *hi, u32 *lo, u32 *rq, u32 *tx) +{ + struct nvkm_device *device = i2c->subdev.device; + u32 intr = nvkm_rd32(device, 0x00dc60); + u32 stat = nvkm_rd32(device, 0x00dc68) & intr, i; + for (i = 0, *hi = *lo = *rq = *tx = 0; i < 8; i++) { + if ((stat & (1 << (i * 4)))) *hi |= 1 << i; + if ((stat & (2 << (i * 4)))) *lo |= 1 << i; + if ((stat & (4 << (i * 4)))) *rq |= 1 << i; + if ((stat & (8 << (i * 4)))) *tx |= 1 << i; + } + nvkm_wr32(device, 0x00dc60, intr); +} + +void +gk104_aux_mask(struct nvkm_i2c *i2c, u32 type, u32 mask, u32 data) +{ + struct nvkm_device *device = i2c->subdev.device; + u32 temp = nvkm_rd32(device, 0x00dc68), i; + for (i = 0; i < 8; i++) { + if (mask & (1 << i)) { + if (!(data & (1 << i))) { + temp &= ~(type << (i * 4)); + continue; + } + temp |= type << (i * 4); + } + } + nvkm_wr32(device, 0x00dc68, temp); +} + +static const struct nvkm_i2c_func +gk104_i2c = { + .pad_x_new = gf119_i2c_pad_x_new, + .pad_s_new = gf119_i2c_pad_s_new, + .aux = 4, + .aux_stat = gk104_aux_stat, + .aux_mask = gk104_aux_mask, +}; + +int +gk104_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&gk104_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c new file mode 100644 index 000000000..9fec6af56 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gk110.c @@ -0,0 +1,46 @@ +/* + * Copyright 2021 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. + */ +#include "priv.h" +#include "pad.h" + +static void +gk110_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable) +{ + nvkm_mask(i2c->subdev.device, 0x00e4f8 + (aux * 0x50), 0x00010000, enable << 16); +} + +static const struct nvkm_i2c_func +gk110_i2c = { + .pad_x_new = gf119_i2c_pad_x_new, + .pad_s_new = gf119_i2c_pad_s_new, + .aux = 4, + .aux_stat = gk104_aux_stat, + .aux_mask = gk104_aux_mask, + .aux_autodpcd = gk110_aux_autodpcd, +}; + +int +gk110_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&gk110_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c new file mode 100644 index 000000000..46917eb60 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/gm200.c @@ -0,0 +1,48 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +static void +gm200_aux_autodpcd(struct nvkm_i2c *i2c, int aux, bool enable) +{ + nvkm_mask(i2c->subdev.device, 0x00d968 + (aux * 0x50), 0x00010000, enable << 16); +} + +static const struct nvkm_i2c_func +gm200_i2c = { + .pad_x_new = gf119_i2c_pad_x_new, + .pad_s_new = gm200_i2c_pad_s_new, + .aux = 8, + .aux_stat = gk104_aux_stat, + .aux_mask = gk104_aux_mask, + .aux_autodpcd = gm200_aux_autodpcd, +}; + +int +gm200_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&gm200_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c new file mode 100644 index 000000000..ecfcf147c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv04.c @@ -0,0 +1,37 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +static const struct nvkm_i2c_func +nv04_i2c = { + .pad_x_new = nv04_i2c_pad_new, +}; + +int +nv04_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&nv04_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c new file mode 100644 index 000000000..ad1d3fd2b --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv4e.c @@ -0,0 +1,37 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +static const struct nvkm_i2c_func +nv4e_i2c = { + .pad_x_new = nv4e_i2c_pad_new, +}; + +int +nv4e_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&nv4e_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c new file mode 100644 index 000000000..2f94bed2c --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/nv50.c @@ -0,0 +1,37 @@ +/* + * Copyright 2012 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 "priv.h" +#include "pad.h" + +static const struct nvkm_i2c_func +nv50_i2c = { + .pad_x_new = nv50_i2c_pad_new, +}; + +int +nv50_i2c_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, + struct nvkm_i2c **pi2c) +{ + return nvkm_i2c_new_(&nv50_i2c, device, type, inst, pi2c); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c new file mode 100644 index 000000000..2c5fcb9c5 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.c @@ -0,0 +1,116 @@ +/* + * Copyright 2015 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 <bskeggs@redhat.com> + */ +#include "pad.h" + +static void +nvkm_i2c_pad_mode_locked(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) +{ + PAD_TRACE(pad, "-> %s", (mode == NVKM_I2C_PAD_AUX) ? "aux" : + (mode == NVKM_I2C_PAD_I2C) ? "i2c" : "off"); + if (pad->func->mode) + pad->func->mode(pad, mode); +} + +void +nvkm_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) +{ + PAD_TRACE(pad, "mode %d", mode); + mutex_lock(&pad->mutex); + nvkm_i2c_pad_mode_locked(pad, mode); + pad->mode = mode; + mutex_unlock(&pad->mutex); +} + +void +nvkm_i2c_pad_release(struct nvkm_i2c_pad *pad) +{ + PAD_TRACE(pad, "release"); + if (pad->mode == NVKM_I2C_PAD_OFF) + nvkm_i2c_pad_mode_locked(pad, pad->mode); + mutex_unlock(&pad->mutex); +} + +int +nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) +{ + PAD_TRACE(pad, "acquire"); + mutex_lock(&pad->mutex); + if (pad->mode != mode) { + if (pad->mode != NVKM_I2C_PAD_OFF) { + mutex_unlock(&pad->mutex); + return -EBUSY; + } + nvkm_i2c_pad_mode_locked(pad, mode); + } + return 0; +} + +void +nvkm_i2c_pad_fini(struct nvkm_i2c_pad *pad) +{ + PAD_TRACE(pad, "fini"); + nvkm_i2c_pad_mode_locked(pad, NVKM_I2C_PAD_OFF); +} + +void +nvkm_i2c_pad_init(struct nvkm_i2c_pad *pad) +{ + PAD_TRACE(pad, "init"); + nvkm_i2c_pad_mode_locked(pad, pad->mode); +} + +void +nvkm_i2c_pad_del(struct nvkm_i2c_pad **ppad) +{ + struct nvkm_i2c_pad *pad = *ppad; + if (pad) { + PAD_TRACE(pad, "dtor"); + list_del(&pad->head); + kfree(pad); + pad = NULL; + } +} + +void +nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *func, struct nvkm_i2c *i2c, + int id, struct nvkm_i2c_pad *pad) +{ + pad->func = func; + pad->i2c = i2c; + pad->id = id; + pad->mode = NVKM_I2C_PAD_OFF; + mutex_init(&pad->mutex); + list_add_tail(&pad->head, &i2c->pad); + PAD_TRACE(pad, "ctor"); +} + +int +nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *func, struct nvkm_i2c *i2c, + int id, struct nvkm_i2c_pad **ppad) +{ + if (!(*ppad = kzalloc(sizeof(**ppad), GFP_KERNEL))) + return -ENOMEM; + nvkm_i2c_pad_ctor(func, i2c, id, *ppad); + return 0; +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h new file mode 100644 index 000000000..44b7bb7d4 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/pad.h @@ -0,0 +1,68 @@ +/* SPDX-License-Identifier: MIT */ +#ifndef __NVKM_I2C_PAD_H__ +#define __NVKM_I2C_PAD_H__ +#include "priv.h" + +struct nvkm_i2c_pad { + const struct nvkm_i2c_pad_func *func; + struct nvkm_i2c *i2c; +#define NVKM_I2C_PAD_HYBRID(n) /* 'n' is hw pad index */ (n) +#define NVKM_I2C_PAD_CCB(n) /* 'n' is ccb index */ ((n) + 0x100) +#define NVKM_I2C_PAD_EXT(n) /* 'n' is dcb external encoder type */ ((n) + 0x200) + int id; + + enum nvkm_i2c_pad_mode { + NVKM_I2C_PAD_OFF, + NVKM_I2C_PAD_I2C, + NVKM_I2C_PAD_AUX, + } mode; + struct mutex mutex; + struct list_head head; +}; + +struct nvkm_i2c_pad_func { + int (*bus_new_0)(struct nvkm_i2c_pad *, int id, u8 drive, u8 sense, + struct nvkm_i2c_bus **); + int (*bus_new_4)(struct nvkm_i2c_pad *, int id, u8 drive, + struct nvkm_i2c_bus **); + + int (*aux_new_6)(struct nvkm_i2c_pad *, int id, u8 drive, + struct nvkm_i2c_aux **); + + void (*mode)(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode); +}; + +void nvkm_i2c_pad_ctor(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *, + int id, struct nvkm_i2c_pad *); +int nvkm_i2c_pad_new_(const struct nvkm_i2c_pad_func *, struct nvkm_i2c *, + int id, struct nvkm_i2c_pad **); +void nvkm_i2c_pad_del(struct nvkm_i2c_pad **); +void nvkm_i2c_pad_init(struct nvkm_i2c_pad *); +void nvkm_i2c_pad_fini(struct nvkm_i2c_pad *); +void nvkm_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode); +int nvkm_i2c_pad_acquire(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode); +void nvkm_i2c_pad_release(struct nvkm_i2c_pad *); + +void g94_i2c_pad_mode(struct nvkm_i2c_pad *, enum nvkm_i2c_pad_mode); + +int nv04_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int nv4e_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int nv50_i2c_pad_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int g94_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int gf119_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int gm200_i2c_pad_x_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); + +int g94_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int gf119_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); +int gm200_i2c_pad_s_new(struct nvkm_i2c *, int, struct nvkm_i2c_pad **); + +int anx9805_pad_new(struct nvkm_i2c_bus *, int, u8, struct nvkm_i2c_pad **); + +#define PAD_MSG(p,l,f,a...) do { \ + struct nvkm_i2c_pad *_pad = (p); \ + nvkm_##l(&_pad->i2c->subdev, "pad %04x: "f"\n", _pad->id, ##a); \ +} while(0) +#define PAD_ERR(p,f,a...) PAD_MSG((p), error, f, ##a) +#define PAD_DBG(p,f,a...) PAD_MSG((p), debug, f, ##a) +#define PAD_TRACE(p,f,a...) PAD_MSG((p), trace, f, ##a) +#endif diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c new file mode 100644 index 000000000..5904bc5f2 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padg94.c @@ -0,0 +1,76 @@ +/* + * 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" +#include "aux.h" +#include "bus.h" + +void +g94_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) +{ + struct nvkm_subdev *subdev = &pad->i2c->subdev; + struct nvkm_device *device = subdev->device; + const u32 base = (pad->id - NVKM_I2C_PAD_HYBRID(0)) * 0x50; + + switch (mode) { + case NVKM_I2C_PAD_OFF: + nvkm_mask(device, 0x00e50c + base, 0x00000001, 0x00000001); + break; + case NVKM_I2C_PAD_I2C: + nvkm_mask(device, 0x00e500 + base, 0x0000c003, 0x0000c001); + nvkm_mask(device, 0x00e50c + base, 0x00000001, 0x00000000); + break; + case NVKM_I2C_PAD_AUX: + nvkm_mask(device, 0x00e500 + base, 0x0000c003, 0x00000002); + nvkm_mask(device, 0x00e50c + base, 0x00000001, 0x00000000); + break; + default: + WARN_ON(1); + break; + } +} + +static const struct nvkm_i2c_pad_func +g94_i2c_pad_s_func = { + .bus_new_4 = nv50_i2c_bus_new, + .aux_new_6 = g94_i2c_aux_new, + .mode = g94_i2c_pad_mode, +}; + +int +g94_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&g94_i2c_pad_s_func, i2c, id, ppad); +} + +static const struct nvkm_i2c_pad_func +g94_i2c_pad_x_func = { + .bus_new_4 = nv50_i2c_bus_new, + .aux_new_6 = g94_i2c_aux_new, +}; + +int +g94_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&g94_i2c_pad_x_func, i2c, id, ppad); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c new file mode 100644 index 000000000..3bc4d0310 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgf119.c @@ -0,0 +1,51 @@ +/* + * 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" +#include "aux.h" +#include "bus.h" + +static const struct nvkm_i2c_pad_func +gf119_i2c_pad_s_func = { + .bus_new_4 = gf119_i2c_bus_new, + .aux_new_6 = gf119_i2c_aux_new, + .mode = g94_i2c_pad_mode, +}; + +int +gf119_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&gf119_i2c_pad_s_func, i2c, id, ppad); +} + +static const struct nvkm_i2c_pad_func +gf119_i2c_pad_x_func = { + .bus_new_4 = gf119_i2c_bus_new, + .aux_new_6 = gf119_i2c_aux_new, +}; + +int +gf119_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&gf119_i2c_pad_x_func, i2c, id, ppad); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c new file mode 100644 index 000000000..7d417f6a8 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padgm200.c @@ -0,0 +1,76 @@ +/* + * 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" +#include "aux.h" +#include "bus.h" + +static void +gm200_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) +{ + struct nvkm_subdev *subdev = &pad->i2c->subdev; + struct nvkm_device *device = subdev->device; + const u32 base = (pad->id - NVKM_I2C_PAD_HYBRID(0)) * 0x50; + + switch (mode) { + case NVKM_I2C_PAD_OFF: + nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000001); + break; + case NVKM_I2C_PAD_I2C: + nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x0000c001); + nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000); + break; + case NVKM_I2C_PAD_AUX: + nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x00000002); + nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000); + break; + default: + WARN_ON(1); + break; + } +} + +static const struct nvkm_i2c_pad_func +gm200_i2c_pad_s_func = { + .bus_new_4 = gf119_i2c_bus_new, + .aux_new_6 = gm200_i2c_aux_new, + .mode = gm200_i2c_pad_mode, +}; + +int +gm200_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&gm200_i2c_pad_s_func, i2c, id, ppad); +} + +static const struct nvkm_i2c_pad_func +gm200_i2c_pad_x_func = { + .bus_new_4 = gf119_i2c_bus_new, + .aux_new_6 = gm200_i2c_aux_new, +}; + +int +gm200_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&gm200_i2c_pad_x_func, i2c, id, ppad); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c new file mode 100644 index 000000000..310046ad9 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv04.c @@ -0,0 +1,36 @@ +/* + * 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" +#include "bus.h" + +static const struct nvkm_i2c_pad_func +nv04_i2c_pad_func = { + .bus_new_0 = nv04_i2c_bus_new, +}; + +int +nv04_i2c_pad_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&nv04_i2c_pad_func, i2c, id, ppad); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c new file mode 100644 index 000000000..dda6fc0b0 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv4e.c @@ -0,0 +1,36 @@ +/* + * 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" +#include "bus.h" + +static const struct nvkm_i2c_pad_func +nv4e_i2c_pad_func = { + .bus_new_4 = nv4e_i2c_bus_new, +}; + +int +nv4e_i2c_pad_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&nv4e_i2c_pad_func, i2c, id, ppad); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c new file mode 100644 index 000000000..a03f25b19 --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv50.c @@ -0,0 +1,36 @@ +/* + * 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" +#include "bus.h" + +static const struct nvkm_i2c_pad_func +nv50_i2c_pad_func = { + .bus_new_4 = nv50_i2c_bus_new, +}; + +int +nv50_i2c_pad_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) +{ + return nvkm_i2c_pad_new_(&nv50_i2c_pad_func, i2c, id, ppad); +} diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h new file mode 100644 index 000000000..f9d79f72f --- /dev/null +++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/priv.h @@ -0,0 +1,37 @@ +/* SPDX-License-Identifier: MIT */ +#ifndef __NVKM_I2C_PRIV_H__ +#define __NVKM_I2C_PRIV_H__ +#define nvkm_i2c(p) container_of((p), struct nvkm_i2c, subdev) +#include <subdev/i2c.h> + +int nvkm_i2c_new_(const struct nvkm_i2c_func *, struct nvkm_device *, enum nvkm_subdev_type, int, + struct nvkm_i2c **); + +struct nvkm_i2c_func { + int (*pad_x_new)(struct nvkm_i2c *, int id, struct nvkm_i2c_pad **); + int (*pad_s_new)(struct nvkm_i2c *, int id, struct nvkm_i2c_pad **); + + /* number of native dp aux channels present */ + int aux; + + /* read and ack pending interrupts, returning only data + * for ports that have not been masked off, while still + * performing the ack for anything that was pending. + */ + void (*aux_stat)(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *); + + /* mask on/off interrupt types for a given set of auxch + */ + void (*aux_mask)(struct nvkm_i2c *, u32, u32, u32); + + /* enable/disable HW-initiated DPCD reads + */ + void (*aux_autodpcd)(struct nvkm_i2c *, int aux, bool enable); +}; + +void g94_aux_stat(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *); +void g94_aux_mask(struct nvkm_i2c *, u32, u32, u32); + +void gk104_aux_stat(struct nvkm_i2c *, u32 *, u32 *, u32 *, u32 *); +void gk104_aux_mask(struct nvkm_i2c *, u32, u32, u32); +#endif |