diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_bios.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_bios.c | 166 |
1 files changed, 10 insertions, 156 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c index c7723fb54077..7922bb969d25 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bios.c +++ b/drivers/gpu/drm/nouveau/nouveau_bios.c @@ -720,116 +720,20 @@ static int dcb_entry_idx_from_crtchead(struct drm_device *dev) return dcb_entry; } -static int -read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c) -{ - uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4; - int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES; - int recordoffset = 0, rdofs = 1, wrofs = 0; - uint8_t port_type = 0; - - if (!i2ctable) - return -EINVAL; - - if (dcb_version >= 0x30) { - if (i2ctable[0] != dcb_version) /* necessary? */ - NV_WARN(dev, - "DCB I2C table version mismatch (%02X vs %02X)\n", - i2ctable[0], dcb_version); - dcb_i2c_ver = i2ctable[0]; - headerlen = i2ctable[1]; - if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES) - i2c_entries = i2ctable[2]; - else - NV_WARN(dev, - "DCB I2C table has more entries than indexable " - "(%d entries, max %d)\n", i2ctable[2], - DCB_MAX_NUM_I2C_ENTRIES); - entry_len = i2ctable[3]; - /* [4] is i2c_default_indices, read in parse_dcb_table() */ - } - /* - * It's your own fault if you call this function on a DCB 1.1 BIOS -- - * the test below is for DCB 1.2 - */ - if (dcb_version < 0x14) { - recordoffset = 2; - rdofs = 0; - wrofs = 1; - } - - if (index == 0xf) - return 0; - if (index >= i2c_entries) { - NV_ERROR(dev, "DCB I2C index too big (%d >= %d)\n", - index, i2ctable[2]); - return -ENOENT; - } - if (i2ctable[headerlen + entry_len * index + 3] == 0xff) { - NV_ERROR(dev, "DCB I2C entry invalid\n"); - return -EINVAL; - } - - if (dcb_i2c_ver >= 0x30) { - port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index]; - - /* - * Fixup for chips using same address offset for read and - * write. - */ - if (port_type == 4) /* seen on C51 */ - rdofs = wrofs = 1; - if (port_type >= 5) /* G80+ */ - rdofs = wrofs = 0; - } - - if (dcb_i2c_ver >= 0x40) { - if (port_type != 5 && port_type != 6) - NV_WARN(dev, "DCB I2C table has port type %d\n", port_type); - - i2c->entry = ROM32(i2ctable[headerlen + recordoffset + entry_len * index]); - } - - i2c->port_type = port_type; - i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index]; - i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index]; - - return 0; -} - static struct nouveau_i2c_chan * init_i2c_device_find(struct drm_device *dev, int i2c_index) { - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct dcb_table *dcb = &dev_priv->vbios.dcb; - if (i2c_index == 0xff) { + struct drm_nouveau_private *dev_priv = dev->dev_private; + struct dcb_table *dcb = &dev_priv->vbios.dcb; /* note: dcb_entry_idx_from_crtchead needs pre-script set-up */ - int idx = dcb_entry_idx_from_crtchead(dev), shift = 0; - int default_indices = dcb->i2c_default_indices; + int idx = dcb_entry_idx_from_crtchead(dev); + i2c_index = NV_I2C_DEFAULT(0); if (idx != 0x7f && dcb->entry[idx].i2c_upper_default) - shift = 4; - - i2c_index = (default_indices >> shift) & 0xf; - } - if (i2c_index == 0x80) /* g80+ */ - i2c_index = dcb->i2c_default_indices & 0xf; - else - if (i2c_index == 0x81) - i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4; - - if (i2c_index >= DCB_MAX_NUM_I2C_ENTRIES) { - NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index); - return NULL; + i2c_index = NV_I2C_DEFAULT(1); } - /* Make sure i2c table entry has been parsed, it may not - * have been if this is a bus not referenced by a DCB encoder - */ - read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table, - i2c_index, &dcb->i2c[i2c_index]); - return nouveau_i2c_find(dev, i2c_index); } @@ -5595,10 +5499,6 @@ static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsi uint16_t legacy_scripts_offset, legacy_i2c_offset; /* load needed defaults in case we can't parse this info */ - bios->dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX; - bios->dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX; - bios->dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX; - bios->dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX; bios->digital_min_front_porch = 0x4b; bios->fmaxvco = 256000; bios->fminvco = 128000; @@ -5706,14 +5606,6 @@ static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsi bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset]; bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1]; bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2]; - if (bios->data[legacy_i2c_offset + 4]) - bios->dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4]; - if (bios->data[legacy_i2c_offset + 5]) - bios->dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5]; - if (bios->data[legacy_i2c_offset + 6]) - bios->dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6]; - if (bios->data[legacy_i2c_offset + 7]) - bios->dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7]; if (bmplength > 74) { bios->fmaxvco = ROM32(bmp[67]); @@ -6549,10 +6441,6 @@ parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp) ret = parse_dcb15_entry(dev, dcb, conn, conf, entry); if (!ret) return 1; /* stop parsing */ - - read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table, - entry->i2c_index, - &dcb->i2c[entry->i2c_index]); } return 0; @@ -6562,7 +6450,6 @@ static int parse_dcb_table(struct drm_device *dev, struct nvbios *bios) { struct dcb_table *dcb = &bios->dcb; - u16 i2ctabptr = 0x0000; u8 *dcbt; dcbt = dcb_table(dev); @@ -6580,32 +6467,8 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios) dcb->version = dcbt[0]; if (dcb->version >= 0x30) { - i2ctabptr = ROM16(dcbt[4]); dcb->gpio_table_ptr = ROM16(dcbt[10]); dcb->connector_table_ptr = ROM16(dcbt[20]); - } else - if (dcb->version >= 0x15) { - i2ctabptr = ROM16(dcbt[2]); - } - - if (!i2ctabptr) - NV_WARN(dev, "No pointer to DCB I2C port table\n"); - else { - dcb->i2c_table = &bios->data[i2ctabptr]; - if (dcb->version >= 0x30) - dcb->i2c_default_indices = dcb->i2c_table[4]; - - /* - * Parse the "management" I2C bus, used for hardware - * monitoring and some external TMDS transmitters. - */ - if (dcb->version >= 0x22) { - int idx = (dcb->version >= 0x40 ? - dcb->i2c_default_indices & 0xf : 2); - - read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table, - idx, &dcb->i2c[idx]); - } } dcb_outp_foreach(dev, NULL, parse_dcb_entry); @@ -6893,19 +6756,6 @@ nouveau_run_vbios_init(struct drm_device *dev) return ret; } -static void -nouveau_bios_i2c_devices_takedown(struct drm_device *dev) -{ - struct drm_nouveau_private *dev_priv = dev->dev_private; - struct nvbios *bios = &dev_priv->vbios; - struct dcb_i2c_entry *entry; - int i; - - entry = &bios->dcb.i2c[0]; - for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++) - nouveau_i2c_fini(dev, entry); -} - static bool nouveau_bios_posted(struct drm_device *dev) { @@ -6942,6 +6792,10 @@ nouveau_bios_init(struct drm_device *dev) if (ret) return ret; + ret = nouveau_i2c_init(dev); + if (ret) + return ret; + ret = parse_dcb_table(dev, bios); if (ret) return ret; @@ -6984,5 +6838,5 @@ nouveau_bios_init(struct drm_device *dev) void nouveau_bios_takedown(struct drm_device *dev) { - nouveau_bios_i2c_devices_takedown(dev); + nouveau_i2c_fini(dev); } |