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/* -*- c-basic-offset: 4 -*- */
/*
* 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>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "xf86_OSproc.h"
#include "xf86Resources.h"
#include "compiler.h"
#include "miscstruct.h"
#include "xf86i2c.h"
#include "xf86Crtc.h"
#define DPMS_SERVER
#include <X11/extensions/dpms.h>
#include "../i2c_vid.h"
#include "tfp410.h"
#include "tfp410_reg.h"
static Bool
tfp410ReadByte(TFP410Ptr tfp, int addr, CARD8 *ch)
{
if (!xf86I2CReadByte(&(tfp->d), addr, ch)) {
if (!tfp->quiet) {
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_ERROR,
"Unable to read from %s Slave %d.\n",
tfp->d.pI2CBus->BusName, tfp->d.SlaveAddr);
}
return FALSE;
}
return TRUE;
}
static Bool
tfp410WriteByte(TFP410Ptr tfp, int addr, CARD8 ch)
{
if (!xf86I2CWriteByte(&(tfp->d), addr, ch)) {
if (!tfp->quiet) {
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_ERROR,
"Unable to write to %s Slave %d.\n",
tfp->d.pI2CBus->BusName, tfp->d.SlaveAddr);
}
return FALSE;
}
return TRUE;
}
static int
tfp410GetID(TFP410Ptr tfp, int addr)
{
unsigned char ch1, ch2;
if (tfp410ReadByte(tfp, addr+0, &ch1) &&
tfp410ReadByte(tfp, addr+1, &ch2)) {
return ((ch2<<8) & 0xFF00) | (ch1 & 0x00FF);
}
return -1;
}
/* Ti TFP410 driver for chip on i2c bus */
static void *
tfp410_init(I2CBusPtr b, I2CSlaveAddr addr)
{
/* this will detect the tfp410 chip on the specified i2c bus */
TFP410Ptr tfp;
int id;
tfp = xcalloc(1, sizeof(TFP410Rec));
if (tfp == NULL)
return NULL;
tfp->d.DevName = "TFP410 TMDS Controller";
tfp->d.SlaveAddr = addr;
tfp->d.pI2CBus = b;
tfp->d.StartTimeout = b->StartTimeout;
tfp->d.BitTimeout = b->BitTimeout;
tfp->d.AcknTimeout = b->AcknTimeout;
tfp->d.ByteTimeout = b->ByteTimeout;
tfp->d.DriverPrivate.ptr = tfp;
tfp->quiet = TRUE;
if ((id = tfp410GetID(tfp, TFP410_VID_LO)) != TFP410_VID) {
if (id != 0xffffffff) {
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_ERROR,
"tfp410 not detected got VID %X: from %s Slave %d.\n",
id, tfp->d.pI2CBus->BusName, tfp->d.SlaveAddr);
}
goto out;
}
if ((id = tfp410GetID(tfp, TFP410_DID_LO)) != TFP410_DID) {
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_ERROR,
"tfp410 not detected got DID %X: from %s Slave %d.\n",
id, tfp->d.pI2CBus->BusName, tfp->d.SlaveAddr);
goto out;
}
tfp->quiet = FALSE;
if (!xf86I2CDevInit(&(tfp->d))) {
goto out;
}
return tfp;
out:
xfree(tfp);
return NULL;
}
static xf86OutputStatus
tfp410_detect(I2CDevPtr d)
{
TFP410Ptr tfp = TFPPTR(d);
xf86OutputStatus ret = XF86OutputStatusDisconnected;
unsigned char ctl2;
if (tfp410ReadByte(tfp, TFP410_CTL_2, &ctl2)) {
if (ctl2 & TFP410_CTL_2_HTPLG)
ret = XF86OutputStatusConnected;
else
ret = XF86OutputStatusDisconnected;
}
return ret;
}
static ModeStatus
tfp410_mode_valid(I2CDevPtr d, DisplayModePtr mode)
{
return MODE_OK;
}
static void
tfp410_mode_set(I2CDevPtr d, DisplayModePtr mode, DisplayModePtr 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(I2CDevPtr d, int mode)
{
TFP410Ptr tfp = TFPPTR(d);
unsigned char ctl1;
if (!tfp410ReadByte(tfp, TFP410_CTL_1, &ctl1))
return;
if (mode == DPMSModeOn)
ctl1 |= TFP410_CTL_1_PD;
else
ctl1 &= ~TFP410_CTL_1_PD;
tfp410WriteByte(tfp, TFP410_CTL_1, ctl1);
}
static void
tfp410_dump_regs(I2CDevPtr d)
{
TFP410Ptr tfp = TFPPTR(d);
CARD8 val, val2;
tfp410ReadByte(tfp, TFP410_REV, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_REV: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_CTL_1, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_CTL1: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_CTL_2, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_CTL2: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_CTL_3, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_CTL3: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_USERCFG, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_USERCFG: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_DE_DLY, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_DE_DLY: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_DE_CTL, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_DE_CTL: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_DE_TOP, &val);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_DE_TOP: 0x%02X\n", val);
tfp410ReadByte(tfp, TFP410_DE_CNT_LO, &val);
tfp410ReadByte(tfp, TFP410_DE_CNT_HI, &val2);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_DE_CNT: 0x%02X%02X\n", val2, val);
tfp410ReadByte(tfp, TFP410_DE_LIN_LO, &val);
tfp410ReadByte(tfp, TFP410_DE_LIN_HI, &val2);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_DE_LIN: 0x%02X%02X\n", val2, val);
tfp410ReadByte(tfp, TFP410_H_RES_LO, &val);
tfp410ReadByte(tfp, TFP410_H_RES_HI, &val2);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_H_RES: 0x%02X%02X\n", val2, val);
tfp410ReadByte(tfp, TFP410_V_RES_LO, &val);
tfp410ReadByte(tfp, TFP410_V_RES_HI, &val2);
xf86DrvMsg(tfp->d.pI2CBus->scrnIndex, X_INFO,
"TFP410_V_RES: 0x%02X%02X\n", val2, val);
}
static void
tfp410_save(I2CDevPtr d)
{
TFP410Ptr tfp = TFPPTR(d);
if (!tfp410ReadByte(tfp, TFP410_CTL_1, &tfp->SavedReg.ctl1))
return;
if (!tfp410ReadByte(tfp, TFP410_CTL_2, &tfp->SavedReg.ctl2))
return;
}
static void
tfp410_restore(I2CDevPtr d)
{
TFP410Ptr tfp = TFPPTR(d);
/* Restore it powered down initially */
tfp410WriteByte(tfp, TFP410_CTL_1, tfp->SavedReg.ctl1 & ~0x1);
tfp410WriteByte(tfp, TFP410_CTL_2, tfp->SavedReg.ctl2);
tfp410WriteByte(tfp, TFP410_CTL_1, tfp->SavedReg.ctl1);
}
I830I2CVidOutputRec TFP410VidOutput = {
.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,
};
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