From 02a841d434513c7b3620250271c372fabce56de5 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Wed, 4 Jul 2012 23:44:54 +1000 Subject: drm/nouveau: restructure source tree, split core from drm implementation Future work will be headed in the way of separating the policy supplied by the nouveau drm module from the mechanisms provided by the driver core. There will be a couple of major classes (subdev, engine) of driver modules that have clearly defined tasks, and the further directory structure change is to reflect this. No code changes here whatsoever, aside from fixing up a couple of include file pathnames. Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/subdev/i2c/base.c | 394 +++++++++++++++++++++++++ 1 file changed, 394 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/core/subdev/i2c/base.c (limited to 'drivers/gpu/drm/nouveau/core/subdev/i2c/base.c') diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c new file mode 100644 index 0000000..71e9361 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c @@ -0,0 +1,394 @@ +/* + * 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 + +#include "drmP.h" +#include "nouveau_drv.h" +#include +#include "nouveau_hw.h" + +static void +i2c_drive_scl(void *data, int state) +{ + struct nouveau_i2c_chan *port = data; + if (port->type == 0) { + u8 val = NVReadVgaCrtc(port->dev, 0, port->drive); + if (state) val |= 0x20; + else val &= 0xdf; + NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01); + } else + if (port->type == 4) { + nv_mask(port->dev, port->drive, 0x2f, state ? 0x21 : 0x01); + } else + if (port->type == 5) { + if (state) port->state |= 0x01; + else port->state &= 0xfe; + nv_wr32(port->dev, port->drive, 4 | port->state); + } +} + +static void +i2c_drive_sda(void *data, int state) +{ + struct nouveau_i2c_chan *port = data; + if (port->type == 0) { + u8 val = NVReadVgaCrtc(port->dev, 0, port->drive); + if (state) val |= 0x10; + else val &= 0xef; + NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01); + } else + if (port->type == 4) { + nv_mask(port->dev, port->drive, 0x1f, state ? 0x11 : 0x01); + } else + if (port->type == 5) { + if (state) port->state |= 0x02; + else port->state &= 0xfd; + nv_wr32(port->dev, port->drive, 4 | port->state); + } +} + +static int +i2c_sense_scl(void *data) +{ + struct nouveau_i2c_chan *port = data; + struct drm_nouveau_private *dev_priv = port->dev->dev_private; + if (port->type == 0) { + return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x04); + } else + if (port->type == 4) { + return !!(nv_rd32(port->dev, port->sense) & 0x00040000); + } else + if (port->type == 5) { + if (dev_priv->card_type < NV_D0) + return !!(nv_rd32(port->dev, port->sense) & 0x01); + else + return !!(nv_rd32(port->dev, port->sense) & 0x10); + } + return 0; +} + +static int +i2c_sense_sda(void *data) +{ + struct nouveau_i2c_chan *port = data; + struct drm_nouveau_private *dev_priv = port->dev->dev_private; + if (port->type == 0) { + return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x08); + } else + if (port->type == 4) { + return !!(nv_rd32(port->dev, port->sense) & 0x00080000); + } else + if (port->type == 5) { + if (dev_priv->card_type < NV_D0) + return !!(nv_rd32(port->dev, port->sense) & 0x02); + else + return !!(nv_rd32(port->dev, port->sense) & 0x20); + } + return 0; +} + +static const uint32_t nv50_i2c_port[] = { + 0x00e138, 0x00e150, 0x00e168, 0x00e180, + 0x00e254, 0x00e274, 0x00e764, 0x00e780, + 0x00e79c, 0x00e7b8 +}; + +static u8 * +i2c_table(struct drm_device *dev, u8 *version) +{ + u8 *dcb = dcb_table(dev), *i2c = NULL; + if (dcb) { + if (dcb[0] >= 0x15) + i2c = ROMPTR(dev, dcb[2]); + if (dcb[0] >= 0x30) + i2c = ROMPTR(dev, dcb[4]); + } + + /* early revisions had no version number, use dcb version */ + if (i2c) { + *version = dcb[0]; + if (*version >= 0x30) + *version = i2c[0]; + } + + return i2c; +} + +int +nouveau_i2c_init(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nvbios *bios = &dev_priv->vbios; + struct nouveau_i2c_chan *port; + u8 version = 0x00, entries, recordlen; + u8 *i2c, *entry, legacy[2][4] = {}; + int ret, i; + + INIT_LIST_HEAD(&dev_priv->i2c_ports); + + i2c = i2c_table(dev, &version); + if (!i2c) { + u8 *bmp = &bios->data[bios->offset]; + if (bios->type != NVBIOS_BMP) + return -ENODEV; + + legacy[0][0] = NV_CIO_CRE_DDC_WR__INDEX; + legacy[0][1] = NV_CIO_CRE_DDC_STATUS__INDEX; + legacy[1][0] = NV_CIO_CRE_DDC0_WR__INDEX; + legacy[1][1] = NV_CIO_CRE_DDC0_STATUS__INDEX; + + /* BMP (from v4.0) has i2c info in the structure, it's in a + * fixed location on earlier VBIOS + */ + if (bmp[5] < 4) + i2c = &bios->data[0x48]; + else + i2c = &bmp[0x36]; + + if (i2c[4]) legacy[0][0] = i2c[4]; + if (i2c[5]) legacy[0][1] = i2c[5]; + if (i2c[6]) legacy[1][0] = i2c[6]; + if (i2c[7]) legacy[1][1] = i2c[7]; + } + + if (version >= 0x30) { + entry = i2c[1] + i2c; + entries = i2c[2]; + recordlen = i2c[3]; + } else + if (version) { + entry = i2c; + entries = 16; + recordlen = 4; + } else { + entry = legacy[0]; + entries = 2; + recordlen = 4; + } + + for (i = 0; i < entries; i++, entry += recordlen) { + port = kzalloc(sizeof(*port), GFP_KERNEL); + if (port == NULL) { + nouveau_i2c_fini(dev); + return -ENOMEM; + } + + port->type = entry[3]; + if (version < 0x30) { + port->type &= 0x07; + if (port->type == 0x07) + port->type = 0xff; + } + + if (port->type == 0xff) { + kfree(port); + continue; + } + + switch (port->type) { + case 0: /* NV04:NV50 */ + port->drive = entry[0]; + port->sense = entry[1]; + break; + case 4: /* NV4E */ + port->drive = 0x600800 + entry[1]; + port->sense = port->drive; + break; + case 5: /* NV50- */ + port->drive = entry[0] & 0x0f; + if (dev_priv->card_type < NV_D0) { + if (port->drive >= ARRAY_SIZE(nv50_i2c_port)) + break; + port->drive = nv50_i2c_port[port->drive]; + port->sense = port->drive; + } else { + port->drive = 0x00d014 + (port->drive * 0x20); + port->sense = port->drive; + } + break; + case 6: /* NV50- DP AUX */ + port->drive = entry[0] & 0x0f; + port->sense = port->drive; + port->adapter.algo = &nouveau_dp_i2c_algo; + break; + default: + break; + } + + if (!port->adapter.algo && !port->drive) { + NV_ERROR(dev, "I2C%d: type %d index %x/%x unknown\n", + i, port->type, port->drive, port->sense); + kfree(port); + continue; + } + + snprintf(port->adapter.name, sizeof(port->adapter.name), + "nouveau-%s-%d", pci_name(dev->pdev), i); + port->adapter.owner = THIS_MODULE; + port->adapter.dev.parent = &dev->pdev->dev; + port->dev = dev; + port->index = i; + port->dcb = ROM32(entry[0]); + i2c_set_adapdata(&port->adapter, i2c); + + if (port->adapter.algo != &nouveau_dp_i2c_algo) { + port->adapter.algo_data = &port->bit; + port->bit.udelay = 10; + port->bit.timeout = usecs_to_jiffies(2200); + port->bit.data = port; + port->bit.setsda = i2c_drive_sda; + port->bit.setscl = i2c_drive_scl; + port->bit.getsda = i2c_sense_sda; + port->bit.getscl = i2c_sense_scl; + + i2c_drive_scl(port, 0); + i2c_drive_sda(port, 1); + i2c_drive_scl(port, 1); + + ret = i2c_bit_add_bus(&port->adapter); + } else { + port->adapter.algo = &nouveau_dp_i2c_algo; + ret = i2c_add_adapter(&port->adapter); + } + + if (ret) { + NV_ERROR(dev, "I2C%d: failed register: %d\n", i, ret); + kfree(port); + continue; + } + + list_add_tail(&port->head, &dev_priv->i2c_ports); + } + + return 0; +} + +void +nouveau_i2c_fini(struct drm_device *dev) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_i2c_chan *port, *tmp; + + list_for_each_entry_safe(port, tmp, &dev_priv->i2c_ports, head) { + i2c_del_adapter(&port->adapter); + kfree(port); + } +} + +struct nouveau_i2c_chan * +nouveau_i2c_find(struct drm_device *dev, u8 index) +{ + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct nouveau_i2c_chan *port; + + if (index == NV_I2C_DEFAULT(0) || + index == NV_I2C_DEFAULT(1)) { + u8 version, *i2c = i2c_table(dev, &version); + if (i2c && version >= 0x30) { + if (index == NV_I2C_DEFAULT(0)) + index = (i2c[4] & 0x0f); + else + index = (i2c[4] & 0xf0) >> 4; + } else { + index = 2; + } + } + + list_for_each_entry(port, &dev_priv->i2c_ports, head) { + if (port->index == index) + break; + } + + if (&port->head == &dev_priv->i2c_ports) + return NULL; + + if (dev_priv->card_type >= NV_50 && (port->dcb & 0x00000100)) { + u32 reg = 0x00e500, val; + if (port->type == 6) { + reg += port->drive * 0x50; + val = 0x2002; + } else { + reg += ((port->dcb & 0x1e00) >> 9) * 0x50; + val = 0xe001; + } + + /* nfi, but neither auxch or i2c work if it's 1 */ + nv_mask(dev, reg + 0x0c, 0x00000001, 0x00000000); + /* nfi, but switches auxch vs normal i2c */ + nv_mask(dev, reg + 0x00, 0x0000f003, val); + } + + return port; +} + +bool +nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr) +{ + uint8_t buf[] = { 0 }; + struct i2c_msg msgs[] = { + { + .addr = addr, + .flags = 0, + .len = 1, + .buf = buf, + }, + { + .addr = addr, + .flags = I2C_M_RD, + .len = 1, + .buf = buf, + } + }; + + return i2c_transfer(&i2c->adapter, msgs, 2) == 2; +} + +int +nouveau_i2c_identify(struct drm_device *dev, const char *what, + struct i2c_board_info *info, + bool (*match)(struct nouveau_i2c_chan *, + struct i2c_board_info *), + int index) +{ + struct nouveau_i2c_chan *i2c = nouveau_i2c_find(dev, index); + int i; + + if (!i2c) { + NV_DEBUG(dev, "No bus when probing %s on %d\n", what, index); + return -ENODEV; + } + + NV_DEBUG(dev, "Probing %ss on I2C bus: %d\n", what, i2c->index); + for (i = 0; info[i].addr; i++) { + if (nouveau_probe_i2c_addr(i2c, info[i].addr) && + (!match || match(i2c, &info[i]))) { + NV_INFO(dev, "Detected %s: %s\n", what, info[i].type); + return i; + } + } + + NV_DEBUG(dev, "No devices found.\n"); + return -ENODEV; +} -- cgit v1.1 From e0996aea4c349ba302b63203b7d5cab6034dbdca Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 10 Jul 2012 12:20:17 +1000 Subject: drm/nouveau/gpio: port gpio to subdev interfaces v2: Ben Skeggs - rebase on top of v3.6-rc6 with gpio reset patch integrated already Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/subdev/i2c/base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/nouveau/core/subdev/i2c/base.c') diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c index 71e9361..740e399 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c @@ -118,7 +118,7 @@ static const uint32_t nv50_i2c_port[] = { static u8 * i2c_table(struct drm_device *dev, u8 *version) { - u8 *dcb = dcb_table(dev), *i2c = NULL; + u8 *dcb = olddcb_table(dev), *i2c = NULL; if (dcb) { if (dcb[0] >= 0x15) i2c = ROMPTR(dev, dcb[2]); -- cgit v1.1 From 4196faa8623264b79279a06fd186654c959f2767 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 10 Jul 2012 14:36:38 +1000 Subject: drm/nouveau/i2c: port to subdev interfaces v2/v3: Ben Skeggs - fix typo in default bus selection - fix accidental loss of destructor v4: Dmitry Eremin-Solenikov - fix typo causing incorrect default i2c port settings when no BMP data Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/core/subdev/i2c/base.c | 547 +++++++++++++------------ 1 file changed, 280 insertions(+), 267 deletions(-) (limited to 'drivers/gpu/drm/nouveau/core/subdev/i2c/base.c') diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c index 740e399..3d2c883 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/base.c @@ -1,5 +1,5 @@ /* - * Copyright 2009 Red Hat Inc. + * 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"), @@ -22,204 +22,277 @@ * Authors: Ben Skeggs */ -#include +#include "core/option.h" -#include "drmP.h" -#include "nouveau_drv.h" -#include -#include "nouveau_hw.h" +#include "subdev/i2c.h" +#include "subdev/vga.h" -static void -i2c_drive_scl(void *data, int state) +int +nv_rdi2cr(struct nouveau_i2c_port *port, u8 addr, u8 reg) +{ + u8 val; + struct i2c_msg msgs[] = { + { .addr = addr, .flags = 0, .len = 1, .buf = ® }, + { .addr = addr, .flags = I2C_M_RD, .len = 1, .buf = &val }, + }; + + int ret = i2c_transfer(&port->adapter, msgs, 2); + if (ret != 2) + return -EIO; + + return val; +} + +int +nv_wri2cr(struct nouveau_i2c_port *port, u8 addr, u8 reg, u8 val) +{ + struct i2c_msg msgs[] = { + { .addr = addr, .flags = 0, .len = 1, .buf = ® }, + { .addr = addr, .flags = 0, .len = 1, .buf = &val }, + }; + + int ret = i2c_transfer(&port->adapter, msgs, 2); + if (ret != 2) + return -EIO; + + return 0; +} + +bool +nv_probe_i2c(struct nouveau_i2c_port *port, u8 addr) +{ + u8 buf[] = { 0 }; + struct i2c_msg msgs[] = { + { + .addr = addr, + .flags = 0, + .len = 1, + .buf = buf, + }, + { + .addr = addr, + .flags = I2C_M_RD, + .len = 1, + .buf = buf, + } + }; + + return i2c_transfer(&port->adapter, msgs, 2) == 2; +} + +static struct nouveau_i2c_port * +nouveau_i2c_find(struct nouveau_i2c *i2c, u8 index) +{ + struct nouveau_bios *bios = nouveau_bios(i2c); + struct nouveau_i2c_port *port; + + if (index == NV_I2C_DEFAULT(0) || + index == NV_I2C_DEFAULT(1)) { + u8 ver, hdr, cnt, len; + u16 i2c = dcb_i2c_table(bios, &ver, &hdr, &cnt, &len); + if (i2c && ver >= 0x30) { + u8 auxidx = nv_ro08(bios, i2c + 4); + if (index == NV_I2C_DEFAULT(0)) + index = (auxidx & 0x0f) >> 0; + else + index = (auxidx & 0xf0) >> 4; + } else { + index = 2; + } + } + + list_for_each_entry(port, &i2c->ports, head) { + if (port->index == index) + break; + } + + if (&port->head == &i2c->ports) + return NULL; + + if (nv_device(i2c)->card_type >= NV_50 && (port->dcb & 0x00000100)) { + u32 reg = 0x00e500, val; + if (port->type == 6) { + reg += port->drive * 0x50; + val = 0x2002; + } else { + reg += ((port->dcb & 0x1e00) >> 9) * 0x50; + val = 0xe001; + } + + /* nfi, but neither auxch or i2c work if it's 1 */ + nv_mask(i2c, reg + 0x0c, 0x00000001, 0x00000000); + /* nfi, but switches auxch vs normal i2c */ + nv_mask(i2c, reg + 0x00, 0x0000f003, val); + } + + return port; +} + +static int +nouveau_i2c_identify(struct nouveau_i2c *i2c, int index, const char *what, + struct i2c_board_info *info, + bool (*match)(struct nouveau_i2c_port *, + struct i2c_board_info *)) { - struct nouveau_i2c_chan *port = data; - if (port->type == 0) { - u8 val = NVReadVgaCrtc(port->dev, 0, port->drive); + struct nouveau_i2c_port *port = nouveau_i2c_find(i2c, index); + int i; + + if (!port) { + nv_debug(i2c, "no bus when probing %s on %d\n", what, index); + return -ENODEV; + } + + nv_debug(i2c, "probing %ss on bus: %d\n", what, port->index); + for (i = 0; info[i].addr; i++) { + if (nv_probe_i2c(port, info[i].addr) && + (!match || match(port, &info[i]))) { + nv_info(i2c, "detected %s: %s\n", what, info[i].type); + return i; + } + } + + nv_debug(i2c, "no devices found.\n"); + return -ENODEV; +} + +void +nouveau_i2c_drive_scl(void *data, int state) +{ + struct nouveau_i2c_port *port = data; + + if (port->type == DCB_I2C_NV04_BIT) { + u8 val = nv_rdvgac(port->i2c, 0, port->drive); if (state) val |= 0x20; else val &= 0xdf; - NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01); + nv_wrvgac(port->i2c, 0, port->drive, val | 0x01); } else - if (port->type == 4) { - nv_mask(port->dev, port->drive, 0x2f, state ? 0x21 : 0x01); + if (port->type == DCB_I2C_NV4E_BIT) { + nv_mask(port->i2c, port->drive, 0x2f, state ? 0x21 : 0x01); } else - if (port->type == 5) { + if (port->type == DCB_I2C_NVIO_BIT) { if (state) port->state |= 0x01; else port->state &= 0xfe; - nv_wr32(port->dev, port->drive, 4 | port->state); + nv_wr32(port->i2c, port->drive, 4 | port->state); } } -static void -i2c_drive_sda(void *data, int state) +void +nouveau_i2c_drive_sda(void *data, int state) { - struct nouveau_i2c_chan *port = data; - if (port->type == 0) { - u8 val = NVReadVgaCrtc(port->dev, 0, port->drive); + struct nouveau_i2c_port *port = data; + + if (port->type == DCB_I2C_NV04_BIT) { + u8 val = nv_rdvgac(port->i2c, 0, port->drive); if (state) val |= 0x10; else val &= 0xef; - NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01); + nv_wrvgac(port->i2c, 0, port->drive, val | 0x01); } else - if (port->type == 4) { - nv_mask(port->dev, port->drive, 0x1f, state ? 0x11 : 0x01); + if (port->type == DCB_I2C_NV4E_BIT) { + nv_mask(port->i2c, port->drive, 0x1f, state ? 0x11 : 0x01); } else - if (port->type == 5) { + if (port->type == DCB_I2C_NVIO_BIT) { if (state) port->state |= 0x02; else port->state &= 0xfd; - nv_wr32(port->dev, port->drive, 4 | port->state); + nv_wr32(port->i2c, port->drive, 4 | port->state); } } -static int -i2c_sense_scl(void *data) +int +nouveau_i2c_sense_scl(void *data) { - struct nouveau_i2c_chan *port = data; - struct drm_nouveau_private *dev_priv = port->dev->dev_private; - if (port->type == 0) { - return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x04); + struct nouveau_i2c_port *port = data; + struct nouveau_device *device = nv_device(port->i2c); + + if (port->type == DCB_I2C_NV04_BIT) { + return !!(nv_rdvgac(port->i2c, 0, port->sense) & 0x04); } else - if (port->type == 4) { - return !!(nv_rd32(port->dev, port->sense) & 0x00040000); + if (port->type == DCB_I2C_NV4E_BIT) { + return !!(nv_rd32(port->i2c, port->sense) & 0x00040000); } else - if (port->type == 5) { - if (dev_priv->card_type < NV_D0) - return !!(nv_rd32(port->dev, port->sense) & 0x01); + if (port->type == DCB_I2C_NVIO_BIT) { + if (device->card_type < NV_D0) + return !!(nv_rd32(port->i2c, port->sense) & 0x01); else - return !!(nv_rd32(port->dev, port->sense) & 0x10); + return !!(nv_rd32(port->i2c, port->sense) & 0x10); } + return 0; } -static int -i2c_sense_sda(void *data) +int +nouveau_i2c_sense_sda(void *data) { - struct nouveau_i2c_chan *port = data; - struct drm_nouveau_private *dev_priv = port->dev->dev_private; - if (port->type == 0) { - return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x08); + struct nouveau_i2c_port *port = data; + struct nouveau_device *device = nv_device(port->i2c); + + if (port->type == DCB_I2C_NV04_BIT) { + return !!(nv_rdvgac(port->i2c, 0, port->sense) & 0x08); } else - if (port->type == 4) { - return !!(nv_rd32(port->dev, port->sense) & 0x00080000); + if (port->type == DCB_I2C_NV4E_BIT) { + return !!(nv_rd32(port->i2c, port->sense) & 0x00080000); } else - if (port->type == 5) { - if (dev_priv->card_type < NV_D0) - return !!(nv_rd32(port->dev, port->sense) & 0x02); + if (port->type == DCB_I2C_NVIO_BIT) { + if (device->card_type < NV_D0) + return !!(nv_rd32(port->i2c, port->sense) & 0x02); else - return !!(nv_rd32(port->dev, port->sense) & 0x20); + return !!(nv_rd32(port->i2c, port->sense) & 0x20); } + return 0; } -static const uint32_t nv50_i2c_port[] = { +static const u32 nv50_i2c_port[] = { 0x00e138, 0x00e150, 0x00e168, 0x00e180, 0x00e254, 0x00e274, 0x00e764, 0x00e780, 0x00e79c, 0x00e7b8 }; -static u8 * -i2c_table(struct drm_device *dev, u8 *version) -{ - u8 *dcb = olddcb_table(dev), *i2c = NULL; - if (dcb) { - if (dcb[0] >= 0x15) - i2c = ROMPTR(dev, dcb[2]); - if (dcb[0] >= 0x30) - i2c = ROMPTR(dev, dcb[4]); - } - - /* early revisions had no version number, use dcb version */ - if (i2c) { - *version = dcb[0]; - if (*version >= 0x30) - *version = i2c[0]; - } - - return i2c; -} - -int -nouveau_i2c_init(struct drm_device *dev) +static int +nouveau_i2c_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nvbios *bios = &dev_priv->vbios; - struct nouveau_i2c_chan *port; - u8 version = 0x00, entries, recordlen; - u8 *i2c, *entry, legacy[2][4] = {}; - int ret, i; - - INIT_LIST_HEAD(&dev_priv->i2c_ports); - - i2c = i2c_table(dev, &version); - if (!i2c) { - u8 *bmp = &bios->data[bios->offset]; - if (bios->type != NVBIOS_BMP) - return -ENODEV; - - legacy[0][0] = NV_CIO_CRE_DDC_WR__INDEX; - legacy[0][1] = NV_CIO_CRE_DDC_STATUS__INDEX; - legacy[1][0] = NV_CIO_CRE_DDC0_WR__INDEX; - legacy[1][1] = NV_CIO_CRE_DDC0_STATUS__INDEX; - - /* BMP (from v4.0) has i2c info in the structure, it's in a - * fixed location on earlier VBIOS - */ - if (bmp[5] < 4) - i2c = &bios->data[0x48]; - else - i2c = &bmp[0x36]; - - if (i2c[4]) legacy[0][0] = i2c[4]; - if (i2c[5]) legacy[0][1] = i2c[5]; - if (i2c[6]) legacy[1][0] = i2c[6]; - if (i2c[7]) legacy[1][1] = i2c[7]; - } - - if (version >= 0x30) { - entry = i2c[1] + i2c; - entries = i2c[2]; - recordlen = i2c[3]; - } else - if (version) { - entry = i2c; - entries = 16; - recordlen = 4; - } else { - entry = legacy[0]; - entries = 2; - recordlen = 4; - } + struct nouveau_device *device = nv_device(parent); + struct nouveau_bios *bios = nouveau_bios(parent); + struct nouveau_i2c_port *port; + struct nouveau_i2c *i2c; + struct dcb_i2c_entry info; + int ret, i = -1; + + ret = nouveau_subdev_create(parent, engine, oclass, 0, + "I2C", "i2c", &i2c); + *pobject = nv_object(i2c); + if (ret) + return ret; + + i2c->find = nouveau_i2c_find; + i2c->identify = nouveau_i2c_identify; + INIT_LIST_HEAD(&i2c->ports); + + while (!dcb_i2c_parse(bios, ++i, &info)) { + if (info.type == DCB_I2C_UNUSED) + continue; - for (i = 0; i < entries; i++, entry += recordlen) { port = kzalloc(sizeof(*port), GFP_KERNEL); - if (port == NULL) { - nouveau_i2c_fini(dev); - return -ENOMEM; - } - - port->type = entry[3]; - if (version < 0x30) { - port->type &= 0x07; - if (port->type == 0x07) - port->type = 0xff; - } - - if (port->type == 0xff) { - kfree(port); - continue; + if (!port) { + nv_error(i2c, "failed port memory alloc at %d\n", i); + break; } + port->type = info.type; switch (port->type) { - case 0: /* NV04:NV50 */ - port->drive = entry[0]; - port->sense = entry[1]; + case DCB_I2C_NV04_BIT: + port->drive = info.drive; + port->sense = info.sense; break; - case 4: /* NV4E */ - port->drive = 0x600800 + entry[1]; + case DCB_I2C_NV4E_BIT: + port->drive = 0x600800 + info.drive; port->sense = port->drive; break; - case 5: /* NV50- */ - port->drive = entry[0] & 0x0f; - if (dev_priv->card_type < NV_D0) { - if (port->drive >= ARRAY_SIZE(nv50_i2c_port)) + case DCB_I2C_NVIO_BIT: + port->drive = info.drive & 0x0f; + if (device->card_type < NV_D0) { + if (info.drive >= ARRAY_SIZE(nv50_i2c_port)) break; port->drive = nv50_i2c_port[port->drive]; port->sense = port->drive; @@ -228,167 +301,107 @@ nouveau_i2c_init(struct drm_device *dev) port->sense = port->drive; } break; - case 6: /* NV50- DP AUX */ - port->drive = entry[0] & 0x0f; + case DCB_I2C_NVIO_AUX: + port->drive = info.drive & 0x0f; port->sense = port->drive; - port->adapter.algo = &nouveau_dp_i2c_algo; + port->adapter.algo = &nouveau_i2c_aux_algo; break; default: break; } if (!port->adapter.algo && !port->drive) { - NV_ERROR(dev, "I2C%d: type %d index %x/%x unknown\n", + nv_error(i2c, "I2C%d: type %d index %x/%x unknown\n", i, port->type, port->drive, port->sense); kfree(port); continue; } snprintf(port->adapter.name, sizeof(port->adapter.name), - "nouveau-%s-%d", pci_name(dev->pdev), i); + "nouveau-%s-%d", device->name, i); port->adapter.owner = THIS_MODULE; - port->adapter.dev.parent = &dev->pdev->dev; - port->dev = dev; + port->adapter.dev.parent = &device->pdev->dev; + port->i2c = i2c; port->index = i; - port->dcb = ROM32(entry[0]); + port->dcb = info.data; i2c_set_adapdata(&port->adapter, i2c); - if (port->adapter.algo != &nouveau_dp_i2c_algo) { - port->adapter.algo_data = &port->bit; - port->bit.udelay = 10; - port->bit.timeout = usecs_to_jiffies(2200); - port->bit.data = port; - port->bit.setsda = i2c_drive_sda; - port->bit.setscl = i2c_drive_scl; - port->bit.getsda = i2c_sense_sda; - port->bit.getscl = i2c_sense_scl; - - i2c_drive_scl(port, 0); - i2c_drive_sda(port, 1); - i2c_drive_scl(port, 1); - - ret = i2c_bit_add_bus(&port->adapter); + if (port->adapter.algo != &nouveau_i2c_aux_algo) { + nouveau_i2c_drive_scl(port, 0); + nouveau_i2c_drive_sda(port, 1); + nouveau_i2c_drive_scl(port, 1); + +#ifdef CONFIG_NOUVEAU_I2C_INTERNAL_DEFAULT + if (nouveau_boolopt(device->cfgopt, "NvI2C", true)) { +#else + if (nouveau_boolopt(device->cfgopt, "NvI2C", false)) { +#endif + port->adapter.algo = &nouveau_i2c_bit_algo; + ret = i2c_add_adapter(&port->adapter); + } else { + port->adapter.algo_data = &port->bit; + port->bit.udelay = 10; + port->bit.timeout = usecs_to_jiffies(2200); + port->bit.data = port; + port->bit.setsda = nouveau_i2c_drive_sda; + port->bit.setscl = nouveau_i2c_drive_scl; + port->bit.getsda = nouveau_i2c_sense_sda; + port->bit.getscl = nouveau_i2c_sense_scl; + ret = i2c_bit_add_bus(&port->adapter); + } } else { - port->adapter.algo = &nouveau_dp_i2c_algo; + port->adapter.algo = &nouveau_i2c_aux_algo; ret = i2c_add_adapter(&port->adapter); } if (ret) { - NV_ERROR(dev, "I2C%d: failed register: %d\n", i, ret); + nv_error(i2c, "I2C%d: failed register: %d\n", i, ret); kfree(port); continue; } - list_add_tail(&port->head, &dev_priv->i2c_ports); + list_add_tail(&port->head, &i2c->ports); } return 0; } -void -nouveau_i2c_fini(struct drm_device *dev) +static void +nouveau_i2c_dtor(struct nouveau_object *object) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_i2c_chan *port, *tmp; + struct nouveau_i2c *i2c = (void *)object; + struct nouveau_i2c_port *port, *temp; - list_for_each_entry_safe(port, tmp, &dev_priv->i2c_ports, head) { + list_for_each_entry_safe(port, temp, &i2c->ports, head) { i2c_del_adapter(&port->adapter); + list_del(&port->head); kfree(port); } -} - -struct nouveau_i2c_chan * -nouveau_i2c_find(struct drm_device *dev, u8 index) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nouveau_i2c_chan *port; - - if (index == NV_I2C_DEFAULT(0) || - index == NV_I2C_DEFAULT(1)) { - u8 version, *i2c = i2c_table(dev, &version); - if (i2c && version >= 0x30) { - if (index == NV_I2C_DEFAULT(0)) - index = (i2c[4] & 0x0f); - else - index = (i2c[4] & 0xf0) >> 4; - } else { - index = 2; - } - } - - list_for_each_entry(port, &dev_priv->i2c_ports, head) { - if (port->index == index) - break; - } - - if (&port->head == &dev_priv->i2c_ports) - return NULL; - if (dev_priv->card_type >= NV_50 && (port->dcb & 0x00000100)) { - u32 reg = 0x00e500, val; - if (port->type == 6) { - reg += port->drive * 0x50; - val = 0x2002; - } else { - reg += ((port->dcb & 0x1e00) >> 9) * 0x50; - val = 0xe001; - } - - /* nfi, but neither auxch or i2c work if it's 1 */ - nv_mask(dev, reg + 0x0c, 0x00000001, 0x00000000); - /* nfi, but switches auxch vs normal i2c */ - nv_mask(dev, reg + 0x00, 0x0000f003, val); - } - - return port; + nouveau_subdev_destroy(&i2c->base); } -bool -nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr) +static int +nouveau_i2c_init(struct nouveau_object *object) { - uint8_t buf[] = { 0 }; - struct i2c_msg msgs[] = { - { - .addr = addr, - .flags = 0, - .len = 1, - .buf = buf, - }, - { - .addr = addr, - .flags = I2C_M_RD, - .len = 1, - .buf = buf, - } - }; - - return i2c_transfer(&i2c->adapter, msgs, 2) == 2; + struct nouveau_i2c *i2c = (void *)object; + return nouveau_subdev_init(&i2c->base); } -int -nouveau_i2c_identify(struct drm_device *dev, const char *what, - struct i2c_board_info *info, - bool (*match)(struct nouveau_i2c_chan *, - struct i2c_board_info *), - int index) +static int +nouveau_i2c_fini(struct nouveau_object *object, bool suspend) { - struct nouveau_i2c_chan *i2c = nouveau_i2c_find(dev, index); - int i; - - if (!i2c) { - NV_DEBUG(dev, "No bus when probing %s on %d\n", what, index); - return -ENODEV; - } - - NV_DEBUG(dev, "Probing %ss on I2C bus: %d\n", what, i2c->index); - for (i = 0; info[i].addr; i++) { - if (nouveau_probe_i2c_addr(i2c, info[i].addr) && - (!match || match(i2c, &info[i]))) { - NV_INFO(dev, "Detected %s: %s\n", what, info[i].type); - return i; - } - } - - NV_DEBUG(dev, "No devices found.\n"); - return -ENODEV; + struct nouveau_i2c *i2c = (void *)object; + return nouveau_subdev_fini(&i2c->base, suspend); } + +struct nouveau_oclass +nouveau_i2c_oclass = { + .handle = NV_SUBDEV(I2C, 0x00), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nouveau_i2c_ctor, + .dtor = nouveau_i2c_dtor, + .init = nouveau_i2c_init, + .fini = nouveau_i2c_fini, + }, +}; -- cgit v1.1