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path: root/arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c
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Diffstat (limited to 'arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c')
-rw-r--r--arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c177
1 files changed, 101 insertions, 76 deletions
diff --git a/arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c b/arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c
index 6e61ddd95135..0f7a09446876 100644
--- a/arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c
+++ b/arch/arm/mach-tegra/odm_kit/adaptations/pmu/max8907b/max8907b_i2c.c
@@ -37,6 +37,9 @@
#define MAX8907B_I2C_SPEED_KHZ 400
#define MAX8907B_I2C_RETRY_CNT 2
+// Maximum i2c transaction count
+#define MAX_TRANSACTION_COUNT 5
+
NvBool Max8907bI2cWrite8(
NvOdmPmuDeviceHandle hDevice,
NvU8 Addr,
@@ -45,14 +48,14 @@ NvBool Max8907bI2cWrite8(
NvU32 i;
NvU8 WriteBuffer[2];
NvOdmI2cTransactionInfo TransactionInfo;
- NvOdmI2cStatus status = NvOdmI2cStatus_Success;
+ NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
for (i = 0; i < MAX8907B_I2C_RETRY_CNT; i++)
{
WriteBuffer[0] = Addr & 0xFF; // PMU offset
WriteBuffer[1] = Data & 0xFF; // written data
-
+
TransactionInfo.Address = hPmu->DeviceAddr;
TransactionInfo.Buf = &WriteBuffer[0];
TransactionInfo.Flags = NVODM_I2C_IS_WRITE;
@@ -69,12 +72,12 @@ NvBool Max8907bI2cWrite8(
switch (status)
{
case NvOdmI2cStatus_Timeout:
- NVODMPMU_PRINTF(("NvOdmPmuI2cWrite8 Failed: Timeout\n"));
+ NVODMPMU_PRINTF(("NvOdmPmuI2cWrite8 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("NvOdmPmuI2cWrite8 Failed: SlaveNotFound\n"));
- break;
+ break;
}
return NV_FALSE;
}
@@ -86,28 +89,30 @@ NvBool Max8907bI2cRead8(
{
NvU32 i;
NvU8 ReadBuffer = 0;
- NvOdmI2cStatus status = NvOdmI2cStatus_Success;
+ NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
NvOdmI2cTransactionInfo TransactionInfo[2];
for (i = 0; i < MAX8907B_I2C_RETRY_CNT; i++)
{
+ NvU32 TransactionCount = 0;
// Write the PMU offset
ReadBuffer = Addr & 0xFF;
- TransactionInfo[0].Address = hPmu->DeviceAddr;
- TransactionInfo[0].Buf = &ReadBuffer;
- TransactionInfo[0].Flags = NVODM_I2C_IS_WRITE | NVODM_I2C_USE_REPEATED_START;
- TransactionInfo[0].NumBytes = 1;
+ TransactionInfo[TransactionCount].Address = hPmu->DeviceAddr;
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer;
+ TransactionInfo[TransactionCount].Flags =
+ NVODM_I2C_IS_WRITE | NVODM_I2C_USE_REPEATED_START;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
- TransactionInfo[1].Address = (hPmu->DeviceAddr | 0x1);
- TransactionInfo[1].Buf = &ReadBuffer;
- TransactionInfo[1].Flags = 0;
- TransactionInfo[1].NumBytes = 1;
+ TransactionInfo[TransactionCount].Address = (hPmu->DeviceAddr | 0x1);
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer;
+ TransactionInfo[TransactionCount].Flags = 0;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
// Read data from PMU at the specified offset
- status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0], 2,
- MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
+ status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0],
+ TransactionCount, MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status == NvOdmI2cStatus_Success)
{
@@ -120,12 +125,12 @@ NvBool Max8907bI2cRead8(
switch (status)
{
case NvOdmI2cStatus_Timeout:
- NVODMPMU_PRINTF(("NvOdmPmuI2cRead8 Failed: Timeout\n"));
+ NVODMPMU_PRINTF(("NvOdmPmuI2cRead8 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("NvOdmPmuI2cRead8 Failed: SlaveNotFound\n"));
- break;
+ break;
}
return NV_FALSE;
}
@@ -137,13 +142,13 @@ NvBool Max8907bI2cWrite32(
{
NvU32 i;
NvU8 WriteBuffer[5];
- NvOdmI2cStatus status = NvOdmI2cStatus_Success;
+ NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
NvOdmI2cTransactionInfo TransactionInfo;
for (i = 0; i < MAX8907B_I2C_RETRY_CNT; i++)
{
- WriteBuffer[0] = (NvU8)(Addr & 0xFF);
+ WriteBuffer[0] = (NvU8)(Addr & 0xFF);
WriteBuffer[1] = (NvU8)((Data >> 24) & 0xFF);
WriteBuffer[2] = (NvU8)((Data >> 16) & 0xFF);
WriteBuffer[3] = (NvU8)((Data >> 8) & 0xFF);
@@ -154,7 +159,7 @@ NvBool Max8907bI2cWrite32(
TransactionInfo.Flags = NVODM_I2C_IS_WRITE;
TransactionInfo.NumBytes = 5;
- status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo, 1,
+ status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo, 1,
MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status == NvOdmI2cStatus_Success)
@@ -165,12 +170,12 @@ NvBool Max8907bI2cWrite32(
switch (status)
{
case NvOdmI2cStatus_Timeout:
- NVODMPMU_PRINTF(("NvOdmPmuI2cWrite32 Failed: Timeout\n"));
+ NVODMPMU_PRINTF(("NvOdmPmuI2cWrite32 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("NvOdmPmuI2cWrite32 Failed: SlaveNotFound\n"));
- break;
+ break;
}
return NV_FALSE;
}
@@ -182,30 +187,32 @@ NvBool Max8907bI2cRead32(
{
NvU32 i;
NvU8 ReadBuffer[5];
- NvOdmI2cStatus status = NvOdmI2cStatus_Success;
+ NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
NvOdmI2cTransactionInfo TransactionInfo[2];
for (i = 0; i < MAX8907B_I2C_RETRY_CNT; i++)
{
+ NvU32 TransactionCount = 0;
ReadBuffer[0] = Addr & 0xFF;
- TransactionInfo[0].Address = hPmu->DeviceAddr;
- TransactionInfo[0].Buf = &ReadBuffer[0];
- TransactionInfo[0].Flags = NVODM_I2C_IS_WRITE | NVODM_I2C_USE_REPEATED_START;
- TransactionInfo[0].NumBytes = 1;
+ TransactionInfo[TransactionCount].Address = hPmu->DeviceAddr;
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[0];
+ TransactionInfo[TransactionCount].Flags =
+ NVODM_I2C_IS_WRITE | NVODM_I2C_USE_REPEATED_START;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
- TransactionInfo[1].Address = (hPmu->DeviceAddr | 0x1);
- TransactionInfo[1].Buf = &ReadBuffer[0];
- TransactionInfo[1].Flags = 0;
- TransactionInfo[1].NumBytes = 4;
+ TransactionInfo[TransactionCount].Address = (hPmu->DeviceAddr | 0x1);
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[0];
+ TransactionInfo[TransactionCount].Flags = 0;
+ TransactionInfo[TransactionCount++].NumBytes = 4;
- status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0], 2,
- MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
+ status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0],
+ TransactionCount, MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status == NvOdmI2cStatus_Success)
{
- *Data = (ReadBuffer[0] << 24) | (ReadBuffer[1] << 16) |
+ *Data = (ReadBuffer[0] << 24) | (ReadBuffer[1] << 16) |
(ReadBuffer[2] << 8) | ReadBuffer[3];
return NV_TRUE;
@@ -216,12 +223,12 @@ NvBool Max8907bI2cRead32(
switch (status)
{
case NvOdmI2cStatus_Timeout:
- NVODMPMU_PRINTF(("NvOdmPmuI2cRead32 Failed: Timeout\n"));
+ NVODMPMU_PRINTF(("NvOdmPmuI2cRead32 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("NvOdmPmuI2cRead32 Failed: SlaveNotFound\n"));
- break;
+ break;
}
return NV_FALSE;
}
@@ -233,13 +240,14 @@ NvBool Max8907bRtcI2cWriteTime(
{
NvU32 i;
NvU8 WriteBuffer[5];
- NvOdmI2cStatus status = NvOdmI2cStatus_Success;
+ NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
NvOdmI2cTransactionInfo TransactionInfo;
+ NVODMPMU_PRINTF(("\n RTC I2C write: Addr=0x%x, Data=0x%x ", Addr, Data));
for (i = 0; i < MAX8907B_I2C_RETRY_CNT; i++)
{
- WriteBuffer[0] = (NvU8)(Addr & 0xFF);
+ WriteBuffer[0] = (NvU8)(Addr & 0xFF);
WriteBuffer[1] = (NvU8)((Data >> 24) & 0xFF);
WriteBuffer[2] = (NvU8)((Data >> 16) & 0xFF);
WriteBuffer[3] = (NvU8)((Data >> 8) & 0xFF);
@@ -250,7 +258,7 @@ NvBool Max8907bRtcI2cWriteTime(
TransactionInfo.Flags = NVODM_I2C_IS_WRITE;
TransactionInfo.NumBytes = 5;
- status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo, 1,
+ status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo, 1,
MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status == NvOdmI2cStatus_Success)
@@ -261,12 +269,12 @@ NvBool Max8907bRtcI2cWriteTime(
switch (status)
{
case NvOdmI2cStatus_Timeout:
- NVODMPMU_PRINTF(("Max8907bRtcI2cWrite32 Failed: Timeout\n"));
+ NVODMPMU_PRINTF(("Max8907bRtcI2cWrite32 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("Max8907bRtcI2cWrite32 Failed: SlaveNotFound\n"));
- break;
+ break;
}
return NV_FALSE;
}
@@ -278,46 +286,63 @@ NvBool Max8907bRtcI2cReadTime(
{
NvU32 i;
NvU8 ReadBuffer[4];
- NvOdmI2cStatus status = NvOdmI2cStatus_Success;
+ NvOdmI2cStatus status = NvOdmI2cStatus_Success;
Max8907bPrivData *hPmu = (Max8907bPrivData*)hDevice->pPrivate;
- NvOdmI2cTransactionInfo TransactionInfo[4];
+ NvOdmI2cTransactionInfo TransactionInfo[MAX_TRANSACTION_COUNT];
+ NVODMPMU_PRINTF(("\n RTC I2C read: Addr=0x%x ", Addr));
for (i = 0; i < MAX8907B_I2C_RETRY_CNT; i++)
{
- ReadBuffer[0] = Addr++ & 0xFF;
- ReadBuffer[1] = Addr++ & 0xFF;
- ReadBuffer[2] = Addr++ & 0xFF;
- ReadBuffer[3] = 0;
-
- TransactionInfo[0].Address = MAX8907B_RTC_SLAVE_ADDR;
- TransactionInfo[0].Buf = &ReadBuffer[0];
- TransactionInfo[0].Flags = NVODM_I2C_IS_WRITE | NVODM_I2C_USE_REPEATED_START;
- TransactionInfo[0].NumBytes = 1;
-
- // Seconds
- TransactionInfo[1].Address = (MAX8907B_RTC_SLAVE_ADDR | 0x1);
- TransactionInfo[1].Buf = &ReadBuffer[0];
- TransactionInfo[1].Flags = 0;
- TransactionInfo[1].NumBytes = 1;
-
- // Minutes
- TransactionInfo[2].Address = (MAX8907B_RTC_SLAVE_ADDR | 0x1);
- TransactionInfo[2].Buf = &ReadBuffer[1];
- TransactionInfo[2].Flags = 0;
- TransactionInfo[2].NumBytes = 1;
-
- // Hours
- TransactionInfo[3].Address = (MAX8907B_RTC_SLAVE_ADDR | 0x1);
- TransactionInfo[3].Buf = &ReadBuffer[2];
- TransactionInfo[3].Flags = 0;
- TransactionInfo[3].NumBytes = 1;
-
- status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0], 4,
- MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
+ NvU32 TransactionCount = 0;
+ ReadBuffer[0] = Addr & 0xFF;
+ TransactionInfo[TransactionCount].Address = MAX8907B_RTC_SLAVE_ADDR;
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[0];
+ TransactionInfo[TransactionCount].Flags =
+ NVODM_I2C_IS_WRITE | NVODM_I2C_USE_REPEATED_START;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
+
+ // Seconds / day
+ if (TransactionCount >= MAX_TRANSACTION_COUNT)
+ return NV_FALSE;
+ TransactionInfo[TransactionCount].Address =
+ (MAX8907B_RTC_SLAVE_ADDR | 0x1);
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[0];
+ TransactionInfo[TransactionCount].Flags = 0;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
+
+ // Minutes / month
+ if (TransactionCount >= MAX_TRANSACTION_COUNT)
+ return NV_FALSE;
+ TransactionInfo[TransactionCount].Address =
+ (MAX8907B_RTC_SLAVE_ADDR | 0x1);
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[1];
+ TransactionInfo[TransactionCount].Flags = 0;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
+
+ // Hours / YY1
+ if (TransactionCount >= MAX_TRANSACTION_COUNT)
+ return NV_FALSE;
+ TransactionInfo[TransactionCount].Address =
+ (MAX8907B_RTC_SLAVE_ADDR | 0x1);
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[2];
+ TransactionInfo[TransactionCount].Flags = 0;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
+
+ // Weekday / YY2
+ if (TransactionCount >= MAX_TRANSACTION_COUNT)
+ return NV_FALSE;
+ TransactionInfo[TransactionCount].Address =
+ (MAX8907B_RTC_SLAVE_ADDR | 0x1);
+ TransactionInfo[TransactionCount].Buf = &ReadBuffer[3];
+ TransactionInfo[TransactionCount].Flags = 0;
+ TransactionInfo[TransactionCount++].NumBytes = 1;
+
+ status = NvOdmI2cTransaction(hPmu->hOdmI2C, &TransactionInfo[0],
+ TransactionCount, MAX8907B_I2C_SPEED_KHZ, NV_WAIT_INFINITE);
if (status == NvOdmI2cStatus_Success)
{
- *Data = (ReadBuffer[0] << 24) | (ReadBuffer[1] << 16) |
+ *Data = (ReadBuffer[0] << 24) | (ReadBuffer[1] << 16) |
(ReadBuffer[2] << 8) | ReadBuffer[3];
return NV_TRUE;
@@ -328,12 +353,12 @@ NvBool Max8907bRtcI2cReadTime(
switch (status)
{
case NvOdmI2cStatus_Timeout:
- NVODMPMU_PRINTF(("Max8907bRtcI2cRead32 Failed: Timeout\n"));
+ NVODMPMU_PRINTF(("Max8907bRtcI2cRead32 Failed: Timeout\n"));
break;
case NvOdmI2cStatus_SlaveNotFound:
default:
NVODMPMU_PRINTF(("Max8907bRtcI2cRead32 Failed: SlaveNotFound\n"));
- break;
+ break;
}
return NV_FALSE;
}
generated by cgit v1.2.3 (git 2.0.4) at 2024-05-18 20:54:27 +0000