aboutsummaryrefslogtreecommitdiff
path: root/linux-core/dvo_tfp410.c
diff options
context:
space:
mode:
Diffstat (limited to 'linux-core/dvo_tfp410.c')
-rw-r--r--linux-core/dvo_tfp410.c335
1 files changed, 0 insertions, 335 deletions
diff --git a/linux-core/dvo_tfp410.c b/linux-core/dvo_tfp410.c
deleted file mode 100644
index 207fda80..00000000
--- a/linux-core/dvo_tfp410.c
+++ /dev/null
@@ -1,335 +0,0 @@
-/*
- * Copyright © 2007 Dave Mueller
- *
- * 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 (including the next
- * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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:
- * Dave Mueller <dave.mueller@gmx.ch>
- *
- */
-
-#include "dvo.h"
-
-/* register definitions according to the TFP410 data sheet */
-#define TFP410_VID 0x014C
-#define TFP410_DID 0x0410
-
-#define TFP410_VID_LO 0x00
-#define TFP410_VID_HI 0x01
-#define TFP410_DID_LO 0x02
-#define TFP410_DID_HI 0x03
-#define TFP410_REV 0x04
-
-#define TFP410_CTL_1 0x08
-#define TFP410_CTL_1_TDIS (1<<6)
-#define TFP410_CTL_1_VEN (1<<5)
-#define TFP410_CTL_1_HEN (1<<4)
-#define TFP410_CTL_1_DSEL (1<<3)
-#define TFP410_CTL_1_BSEL (1<<2)
-#define TFP410_CTL_1_EDGE (1<<1)
-#define TFP410_CTL_1_PD (1<<0)
-
-#define TFP410_CTL_2 0x09
-#define TFP410_CTL_2_VLOW (1<<7)
-#define TFP410_CTL_2_MSEL_MASK (0x7<<4)
-#define TFP410_CTL_2_MSEL (1<<4)
-#define TFP410_CTL_2_TSEL (1<<3)
-#define TFP410_CTL_2_RSEN (1<<2)
-#define TFP410_CTL_2_HTPLG (1<<1)
-#define TFP410_CTL_2_MDI (1<<0)
-
-#define TFP410_CTL_3 0x0A
-#define TFP410_CTL_3_DK_MASK (0x7<<5)
-#define TFP410_CTL_3_DK (1<<5)
-#define TFP410_CTL_3_DKEN (1<<4)
-#define TFP410_CTL_3_CTL_MASK (0x7<<1)
-#define TFP410_CTL_3_CTL (1<<1)
-
-#define TFP410_USERCFG 0x0B
-
-#define TFP410_DE_DLY 0x32
-
-#define TFP410_DE_CTL 0x33
-#define TFP410_DE_CTL_DEGEN (1<<6)
-#define TFP410_DE_CTL_VSPOL (1<<5)
-#define TFP410_DE_CTL_HSPOL (1<<4)
-#define TFP410_DE_CTL_DEDLY8 (1<<0)
-
-#define TFP410_DE_TOP 0x34
-
-#define TFP410_DE_CNT_LO 0x36
-#define TFP410_DE_CNT_HI 0x37
-
-#define TFP410_DE_LIN_LO 0x38
-#define TFP410_DE_LIN_HI 0x39
-
-#define TFP410_H_RES_LO 0x3A
-#define TFP410_H_RES_HI 0x3B
-
-#define TFP410_V_RES_LO 0x3C
-#define TFP410_V_RES_HI 0x3D
-
-struct tfp410_save_rec {
- uint8_t ctl1;
- uint8_t ctl2;
-};
-
-struct tfp410_priv {
- bool quiet;
-
- struct tfp410_save_rec saved_reg;
- struct tfp410_save_rec mode_reg;
-};
-
-static bool tfp410_readb(struct intel_dvo_device *dvo, int addr, uint8_t *ch)
-{
- struct tfp410_priv *tfp = dvo->dev_priv;
- struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
- u8 out_buf[2];
- u8 in_buf[2];
-
- struct i2c_msg msgs[] = {
- {
- .addr = i2cbus->slave_addr,
- .flags = 0,
- .len = 1,
- .buf = out_buf,
- },
- {
- .addr = i2cbus->slave_addr,
- .flags = I2C_M_RD,
- .len = 1,
- .buf = in_buf,
- }
- };
-
- out_buf[0] = addr;
- out_buf[1] = 0;
-
- if (i2c_transfer(&i2cbus->adapter, msgs, 2) == 2) {
- *ch = in_buf[0];
- return true;
- };
-
- if (!tfp->quiet) {
- DRM_DEBUG("Unable to read register 0x%02x from %s:%02x.\n",
- addr, i2cbus->adapter.name, i2cbus->slave_addr);
- }
- return false;
-}
-
-static bool tfp410_writeb(struct intel_dvo_device *dvo, int addr, uint8_t ch)
-{
- struct tfp410_priv *tfp = dvo->dev_priv;
- struct intel_i2c_chan *i2cbus = dvo->i2c_bus;
- uint8_t out_buf[2];
- struct i2c_msg msg = {
- .addr = i2cbus->slave_addr,
- .flags = 0,
- .len = 2,
- .buf = out_buf,
- };
-
- out_buf[0] = addr;
- out_buf[1] = ch;
-
- if (i2c_transfer(&i2cbus->adapter, &msg, 1) == 1)
- return true;
-
- if (!tfp->quiet) {
- DRM_DEBUG("Unable to write register 0x%02x to %s:%d.\n",
- addr, i2cbus->adapter.name, i2cbus->slave_addr);
- }
-
- return false;
-}
-
-static int tfp410_getid(struct intel_dvo_device *dvo, int addr)
-{
- uint8_t ch1, ch2;
-
- if (tfp410_readb(dvo, addr+0, &ch1) &&
- tfp410_readb(dvo, addr+1, &ch2))
- return ((ch2 << 8) & 0xFF00) | (ch1 & 0x00FF);
-
- return -1;
-}
-
-/* Ti TFP410 driver for chip on i2c bus */
-static bool tfp410_init(struct intel_dvo_device *dvo,
- struct intel_i2c_chan *i2cbus)
-{
- /* this will detect the tfp410 chip on the specified i2c bus */
- struct tfp410_priv *tfp;
- int id;
-
- tfp = kzalloc(sizeof(struct tfp410_priv), GFP_KERNEL);
- if (tfp == NULL)
- return false;
-
- dvo->i2c_bus = i2cbus;
- dvo->i2c_bus->slave_addr = dvo->slave_addr;
- dvo->dev_priv = tfp;
- tfp->quiet = true;
-
- if ((id = tfp410_getid(dvo, TFP410_VID_LO)) != TFP410_VID) {
- DRM_DEBUG("tfp410 not detected got VID %X: from %s Slave %d.\n",
- id, i2cbus->adapter.name, i2cbus->slave_addr);
- goto out;
- }
-
- if ((id = tfp410_getid(dvo, TFP410_DID_LO)) != TFP410_DID) {
- DRM_DEBUG("tfp410 not detected got DID %X: from %s Slave %d.\n",
- id, i2cbus->adapter.name, i2cbus->slave_addr);
- goto out;
- }
- tfp->quiet = false;
- return true;
-out:
- kfree(tfp);
- return false;
-}
-
-static enum drm_connector_status tfp410_detect(struct intel_dvo_device *dvo)
-{
- enum drm_connector_status ret = connector_status_disconnected;
- uint8_t ctl2;
-
- if (tfp410_readb(dvo, TFP410_CTL_2, &ctl2)) {
- if (ctl2 & TFP410_CTL_2_HTPLG)
- ret = connector_status_connected;
- else
- ret = connector_status_disconnected;
- }
-
- return ret;
-}
-
-static enum drm_mode_status tfp410_mode_valid(struct intel_dvo_device *dvo,
- struct drm_display_mode *mode)
-{
- return MODE_OK;
-}
-
-static void tfp410_mode_set(struct intel_dvo_device *dvo,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
-{
- /* As long as the basics are set up, since we don't have clock dependencies
- * in the mode setup, we can just leave the registers alone and everything
- * will work fine.
- */
- /* don't do much */
- return;
-}
-
-/* set the tfp410 power state */
-static void tfp410_dpms(struct intel_dvo_device *dvo, int mode)
-{
- uint8_t ctl1;
-
- if (!tfp410_readb(dvo, TFP410_CTL_1, &ctl1))
- return;
-
- if (mode == DRM_MODE_DPMS_ON)
- ctl1 |= TFP410_CTL_1_PD;
- else
- ctl1 &= ~TFP410_CTL_1_PD;
-
- tfp410_writeb(dvo, TFP410_CTL_1, ctl1);
-}
-
-static void tfp410_dump_regs(struct intel_dvo_device *dvo)
-{
- uint8_t val, val2;
-
- tfp410_readb(dvo, TFP410_REV, &val);
- DRM_DEBUG("TFP410_REV: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_CTL_1, &val);
- DRM_DEBUG("TFP410_CTL1: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_CTL_2, &val);
- DRM_DEBUG("TFP410_CTL2: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_CTL_3, &val);
- DRM_DEBUG("TFP410_CTL3: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_USERCFG, &val);
- DRM_DEBUG("TFP410_USERCFG: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_DE_DLY, &val);
- DRM_DEBUG("TFP410_DE_DLY: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_DE_CTL, &val);
- DRM_DEBUG("TFP410_DE_CTL: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_DE_TOP, &val);
- DRM_DEBUG("TFP410_DE_TOP: 0x%02X\n", val);
- tfp410_readb(dvo, TFP410_DE_CNT_LO, &val);
- tfp410_readb(dvo, TFP410_DE_CNT_HI, &val2);
- DRM_DEBUG("TFP410_DE_CNT: 0x%02X%02X\n", val2, val);
- tfp410_readb(dvo, TFP410_DE_LIN_LO, &val);
- tfp410_readb(dvo, TFP410_DE_LIN_HI, &val2);
- DRM_DEBUG("TFP410_DE_LIN: 0x%02X%02X\n", val2, val);
- tfp410_readb(dvo, TFP410_H_RES_LO, &val);
- tfp410_readb(dvo, TFP410_H_RES_HI, &val2);
- DRM_DEBUG("TFP410_H_RES: 0x%02X%02X\n", val2, val);
- tfp410_readb(dvo, TFP410_V_RES_LO, &val);
- tfp410_readb(dvo, TFP410_V_RES_HI, &val2);
- DRM_DEBUG("TFP410_V_RES: 0x%02X%02X\n", val2, val);
-}
-
-static void tfp410_save(struct intel_dvo_device *dvo)
-{
- struct tfp410_priv *tfp = dvo->dev_priv;
-
- if (!tfp410_readb(dvo, TFP410_CTL_1, &tfp->saved_reg.ctl1))
- return;
-
- if (!tfp410_readb(dvo, TFP410_CTL_2, &tfp->saved_reg.ctl2))
- return;
-}
-
-static void tfp410_restore(struct intel_dvo_device *dvo)
-{
- struct tfp410_priv *tfp = dvo->dev_priv;
-
- /* Restore it powered down initially */
- tfp410_writeb(dvo, TFP410_CTL_1, tfp->saved_reg.ctl1 & ~0x1);
-
- tfp410_writeb(dvo, TFP410_CTL_2, tfp->saved_reg.ctl2);
- tfp410_writeb(dvo, TFP410_CTL_1, tfp->saved_reg.ctl1);
-}
-
-static void tfp410_destroy(struct intel_dvo_device *dvo)
-{
- struct tfp410_priv *tfp = dvo->dev_priv;
-
- if (tfp) {
- kfree(tfp);
- dvo->dev_priv = NULL;
- }
-}
-
-struct intel_dvo_dev_ops tfp410_ops = {
- .init = tfp410_init,
- .detect = tfp410_detect,
- .mode_valid = tfp410_mode_valid,
- .mode_set = tfp410_mode_set,
- .dpms = tfp410_dpms,
- .dump_regs = tfp410_dump_regs,
- .save = tfp410_save,
- .restore = tfp410_restore,
- .destroy = tfp410_destroy,
-};
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-05 18:10:58 +0000