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Diffstat (limited to 'src/ch7xxx/ch7xxx.c')
-rw-r--r--src/ch7xxx/ch7xxx.c349
1 files changed, 178 insertions, 171 deletions
diff --git a/src/ch7xxx/ch7xxx.c b/src/ch7xxx/ch7xxx.c
index d11c3550..df66d03d 100644
--- a/src/ch7xxx/ch7xxx.c
+++ b/src/ch7xxx/ch7xxx.c
@@ -33,11 +33,14 @@ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
#include "miscstruct.h"
#include "xf86i2c.h"
-
#include "../i2c_vid.h"
#include "ch7xxx.h"
#include "ch7xxx_reg.h"
+/** @file
+ * driver for the Chrontel 7xxx DVI chip over DVO.
+ */
+
static void ch7xxxSaveRegs(I2CDevPtr d);
static CARD8 ch7xxxFreqRegs[][7] =
@@ -48,225 +51,229 @@ static CARD8 ch7xxxFreqRegs[][7] =
static Bool ch7xxxReadByte(CH7xxxPtr ch7xxx, int addr, unsigned char *ch)
{
- if (!xf86I2CReadByte(&(ch7xxx->d), addr, ch)) {
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "Unable to read from %s Slave %d.\n", ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
- return FALSE;
- }
- return TRUE;
+ if (!xf86I2CReadByte(&(ch7xxx->d), addr, ch)) {
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex,
+ X_ERROR, "Unable to read from %s Slave %d.\n",
+ ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
+ return FALSE;
+ }
+
+ return TRUE;
}
static Bool ch7xxxWriteByte(CH7xxxPtr ch7xxx, int addr, unsigned char ch)
{
- if (!xf86I2CWriteByte(&(ch7xxx->d), addr, ch)) {
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "Unable to write to %s Slave %d.\n", ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
- return FALSE;
- }
- return TRUE;
+ if (!xf86I2CWriteByte(&(ch7xxx->d), addr, ch)) {
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR,
+ "Unable to write to %s Slave %d.\n",
+ ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
+ return FALSE;
+ }
+
+ return TRUE;
}
-/* Ch7xxxicon Image 164 driver for chip on i2c bus */
static void *ch7xxxDetect(I2CBusPtr b, I2CSlaveAddr addr)
{
- /* this will detect the CH7xxx chip on the specified i2c bus */
- CH7xxxPtr ch7xxx;
- unsigned char ch;
-
- xf86DrvMsg(b->scrnIndex, X_ERROR, "detecting ch7xxx\n");
-
- ch7xxx = xcalloc(1, sizeof(CH7xxxRec));
- if (ch7xxx == NULL)
- return NULL;
+ /* this will detect the CH7xxx chip on the specified i2c bus */
+ CH7xxxPtr ch7xxx;
+ unsigned char ch;
+
+ xf86DrvMsg(b->scrnIndex, X_ERROR, "detecting ch7xxx\n");
+
+ ch7xxx = xcalloc(1, sizeof(CH7xxxRec));
+ if (ch7xxx == NULL)
+ return NULL;
+
+ ch7xxx->d.DevName = "CH7xxx TMDS Controller";
+ ch7xxx->d.SlaveAddr = addr;
+ ch7xxx->d.pI2CBus = b;
+ ch7xxx->d.StartTimeout = b->StartTimeout;
+ ch7xxx->d.BitTimeout = b->BitTimeout;
+ ch7xxx->d.AcknTimeout = b->AcknTimeout;
+ ch7xxx->d.ByteTimeout = b->ByteTimeout;
+ ch7xxx->d.DriverPrivate.ptr = ch7xxx;
+
+ if (!ch7xxxReadByte(ch7xxx, CH7xxx_REG_VID, &ch))
+ goto out;
+
+ ErrorF("VID is %02X", ch);
+ if (ch!=(CH7xxx_VID & 0xFF)) {
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR,
+ "ch7xxx not detected got %d: from %s Slave %d.\n",
+ ch, ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
+ goto out;
+ }
+
- ch7xxx->d.DevName = "CH7xxx TMDS Controller";
- ch7xxx->d.SlaveAddr = addr;
- ch7xxx->d.pI2CBus = b;
- ch7xxx->d.StartTimeout = b->StartTimeout;
- ch7xxx->d.BitTimeout = b->BitTimeout;
- ch7xxx->d.AcknTimeout = b->AcknTimeout;
- ch7xxx->d.ByteTimeout = b->ByteTimeout;
- ch7xxx->d.DriverPrivate.ptr = ch7xxx;
-
- if (!ch7xxxReadByte(ch7xxx, CH7xxx_REG_VID, &ch))
- goto out;
-
- ErrorF("VID is %02X", ch);
- if (ch!=(CH7xxx_VID & 0xFF))
- {
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "ch7xxx not detected got %d: from %s Slave %d.\n", ch, ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
- goto out;
- }
-
-
- if (!ch7xxxReadByte(ch7xxx, CH7xxx_REG_DID, &ch))
- goto out;
-
- ErrorF("DID is %02X", ch);
- if (ch!=(CH7xxx_DID & 0xFF))
- {
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "ch7xxx not detected got %d: from %s Slave %d.\n", ch, ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
- goto out;
- }
-
-
- if (!xf86I2CDevInit(&(ch7xxx->d)))
- {
- goto out;
- }
-
- return ch7xxx;
-
- out:
- xfree(ch7xxx);
- return NULL;
+ if (!ch7xxxReadByte(ch7xxx, CH7xxx_REG_DID, &ch))
+ goto out;
+
+ ErrorF("DID is %02X", ch);
+ if (ch!=(CH7xxx_DID & 0xFF)) {
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR,
+ "ch7xxx not detected got %d: from %s Slave %d.\n",
+ ch, ch7xxx->d.pI2CBus->BusName, ch7xxx->d.SlaveAddr);
+ goto out;
+ }
+
+
+ if (!xf86I2CDevInit(&(ch7xxx->d))) {
+ goto out;
+ }
+
+ return ch7xxx;
+
+out:
+ xfree(ch7xxx);
+ return NULL;
}
static Bool ch7xxxInit(I2CDevPtr d)
{
- CH7xxxPtr ch7xxx = CH7PTR(d);
+ CH7xxxPtr ch7xxx = CH7PTR(d);
- /* not much to do */
- return TRUE;
+ /* not much to do */
+ return TRUE;
}
static ModeStatus ch7xxxModeValid(I2CDevPtr d, DisplayModePtr mode)
{
- CH7xxxPtr ch7xxx = CH7PTR(d);
-
- return MODE_OK;
+ CH7xxxPtr ch7xxx = CH7PTR(d);
+
+ return MODE_OK;
}
static void ch7xxxMode(I2CDevPtr d, DisplayModePtr mode)
{
- CH7xxxPtr ch7xxx = CH7PTR(d);
- int ret;
- unsigned char pm, idf;
- unsigned char tpcp, tpd, tpf, cm;
- CARD8 *freq_regs;
- int i;
- ErrorF("Clock is %d\n", mode->Clock);
-
- if (mode->Clock < 75000)
- freq_regs = ch7xxxFreqRegs[0];
- else if (mode->Clock < 125000)
- freq_regs = ch7xxxFreqRegs[1];
- else
- freq_regs = ch7xxxFreqRegs[2];
-
- for (i = 0x31; i < 0x37; i++) {
- ch7xxx->ModeReg.regs[i] = freq_regs[i - 0x31];
- ch7xxxWriteByte(ch7xxx, i, ch7xxx->ModeReg.regs[i]);
- }
-
-#if 0
-
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "ch7xxx idf is 0x%02x, 0x%02x, 0x%02x, 0x%02x\n", idf, tpcp, tpd, tpf);
-
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "ch7xxx pm is %02X\n", pm);
-
- if (mode->Clock < 65000) {
- tpcp = 0x08;
- tpd = 0x16;
- tpf = 0x60;
- } else {
- tpcp = 0x06;
- tpd = 0x26;
- tpf = 0xa0;
- }
-
- idf &= ~(CH7xxx_IDF_HSP | CH7xxx_IDF_VSP);
- if (mode->Flags & V_PHSYNC)
- idf |= CH7xxx_IDF_HSP;
-
- if (mode->Flags & V_PVSYNC)
- idf |= CH7xxx_IDF_HSP;
-
- /* setup PM Registers */
- pm &= ~CH7xxx_PM_FPD;
- pm |= CH7xxx_PM_DVIL | CH7xxx_PM_DVIP;
-
- // cm |= 1;
-
- ch7xxxWriteByte(ch7xxx, CH7xxx_CM, cm);
- ch7xxxWriteByte(ch7xxx, CH7xxx_TPCP, tpcp);
- ch7xxxWriteByte(ch7xxx, CH7xxx_TPD, tpd);
- ch7xxxWriteByte(ch7xxx, CH7xxx_TPF, tpf);
- ch7xxxWriteByte(ch7xxx, CH7xxx_TPF, idf);
- ch7xxxWriteByte(ch7xxx, CH7xxx_PM, pm);
+ CH7xxxPtr ch7xxx = CH7PTR(d);
+ int ret;
+ unsigned char pm, idf;
+ unsigned char tpcp, tpd, tpf, cm;
+ CARD8 *freq_regs;
+ int i;
+
+ ErrorF("Clock is %d\n", mode->Clock);
+
+ if (mode->Clock < 75000)
+ freq_regs = ch7xxxFreqRegs[0];
+ else if (mode->Clock < 125000)
+ freq_regs = ch7xxxFreqRegs[1];
+ else
+ freq_regs = ch7xxxFreqRegs[2];
+
+ for (i = 0x31; i < 0x37; i++) {
+ ch7xxx->ModeReg.regs[i] = freq_regs[i - 0x31];
+ ch7xxxWriteByte(ch7xxx, i, ch7xxx->ModeReg.regs[i]);
+ }
+#if 0
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR,
+ "ch7xxx idf is 0x%02x, 0x%02x, 0x%02x, 0x%02x\n",
+ idf, tpcp, tpd, tpf);
+
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR,
+ "ch7xxx pm is %02X\n", pm);
+
+ if (mode->Clock < 65000) {
+ tpcp = 0x08;
+ tpd = 0x16;
+ tpf = 0x60;
+ } else {
+ tpcp = 0x06;
+ tpd = 0x26;
+ tpf = 0xa0;
+ }
+
+ idf &= ~(CH7xxx_IDF_HSP | CH7xxx_IDF_VSP);
+ if (mode->Flags & V_PHSYNC)
+ idf |= CH7xxx_IDF_HSP;
+
+ if (mode->Flags & V_PVSYNC)
+ idf |= CH7xxx_IDF_HSP;
+
+ /* setup PM Registers */
+ pm &= ~CH7xxx_PM_FPD;
+ pm |= CH7xxx_PM_DVIL | CH7xxx_PM_DVIP;
+
+ /* cm |= 1; */
+
+ ch7xxxWriteByte(ch7xxx, CH7xxx_CM, cm);
+ ch7xxxWriteByte(ch7xxx, CH7xxx_TPCP, tpcp);
+ ch7xxxWriteByte(ch7xxx, CH7xxx_TPD, tpd);
+ ch7xxxWriteByte(ch7xxx, CH7xxx_TPF, tpf);
+ ch7xxxWriteByte(ch7xxx, CH7xxx_TPF, idf);
+ ch7xxxWriteByte(ch7xxx, CH7xxx_PM, pm);
#endif
- /* don't do much */
- return;
}
/* set the CH7xxx power state */
static void ch7xxxPower(I2CDevPtr d, Bool On)
{
- CH7xxxPtr ch7xxx = CH7PTR(d);
- int ret;
- unsigned char ch;
+ CH7xxxPtr ch7xxx = CH7PTR(d);
+ int ret;
+ unsigned char ch;
+ ret = ch7xxxReadByte(ch7xxx, CH7xxx_PM, &ch);
+ if (ret == FALSE)
+ return;
- ret = ch7xxxReadByte(ch7xxx, CH7xxx_PM, &ch);
- if (ret == FALSE)
- return;
-
- xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR, "ch7xxx pm is %02X\n", ch);
-
-#if 0
- ret = ch7xxxReadByte(ch7xxx, CH7xxx_REG8, &ch);
- if (ret)
- return;
+ xf86DrvMsg(ch7xxx->d.pI2CBus->scrnIndex, X_ERROR,
+ "ch7xxx pm is %02X\n", ch);
+
+#if 0
+ ret = ch7xxxReadByte(ch7xxx, CH7xxx_REG8, &ch);
+ if (ret)
+ return;
- if (On)
- ch |= CH7xxx_8_PD;
- else
- ch &= ~CH7xxx_8_PD;
+ if (On)
+ ch |= CH7xxx_8_PD;
+ else
+ ch &= ~CH7xxx_8_PD;
- ch7xxxWriteByte(ch7xxx, CH7xxx_REG8, ch);
+ ch7xxxWriteByte(ch7xxx, CH7xxx_REG8, ch);
#endif
- return;
}
static void ch7xxxPrintRegs(I2CDevPtr d)
{
- CH7xxxPtr ch7xxx = CH7PTR(d);
- int i;
-
- ch7xxxSaveRegs(d);
+ CH7xxxPtr ch7xxx = CH7PTR(d);
+ int i;
- for (i = 0; i < CH7xxx_NUM_REGS; i++) {
- if (( i % 8 ) == 0 )
- ErrorF("\n %02X: ", i);
- ErrorF("%02X ", ch7xxx->ModeReg.regs[i]);
+ ch7xxxSaveRegs(d);
- }
+ for (i = 0; i < CH7xxx_NUM_REGS; i++) {
+ if (( i % 8 ) == 0 )
+ ErrorF("\n %02X: ", i);
+ ErrorF("%02X ", ch7xxx->ModeReg.regs[i]);
+ }
}
static void ch7xxxSaveRegs(I2CDevPtr d)
{
- CH7xxxPtr ch7xxx = CH7PTR(d);
- int ret;
- int i;
+ CH7xxxPtr ch7xxx = CH7PTR(d);
+ int ret;
+ int i;
- for (i = 0; i < CH7xxx_NUM_REGS; i++) {
- ret = ch7xxxReadByte(ch7xxx, i, &ch7xxx->SavedReg.regs[i]);
- if (ret == FALSE)
- break;
- }
+ for (i = 0; i < CH7xxx_NUM_REGS; i++) {
+ ret = ch7xxxReadByte(ch7xxx, i, &ch7xxx->SavedReg.regs[i]);
+ if (ret == FALSE)
+ break;
+ }
- memcpy(ch7xxx->ModeReg.regs, ch7xxx->SavedReg.regs, CH7xxx_NUM_REGS);
+ memcpy(ch7xxx->ModeReg.regs, ch7xxx->SavedReg.regs, CH7xxx_NUM_REGS);
- return;
+ return;
}
I830I2CVidOutputRec CH7xxxVidOutput = {
- ch7xxxDetect,
- ch7xxxInit,
- ch7xxxModeValid,
- ch7xxxMode,
- ch7xxxPower,
- ch7xxxPrintRegs,
- ch7xxxSaveRegs,
- NULL,
+ ch7xxxDetect,
+ ch7xxxInit,
+ ch7xxxModeValid,
+ ch7xxxMode,
+ ch7xxxPower,
+ ch7xxxPrintRegs,
+ ch7xxxSaveRegs,
+ NULL,
};
generated by cgit v1.2.3 (git 2.25.1) at 2025-01-26 14:12:59 +0000