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| author | Titus Rwantare <titusr@google.com> | 2022-03-07 12:05:57 -0800 |
|---|---|---|
| committer | Philippe Mathieu-Daudé <f4bug@amsat.org> | 2022-03-08 18:46:48 +0100 |
| commit | 32480293db49e98c8dc891764caf726e4aa4d2a6 (patch) | |
| tree | 1b2935a22f638dccd1c9d6d7c985b7b367c7b693 | |
| parent | 9740b907a5363c06ecf61e08b21966a81eb0dab4 (diff) | |
| download | qemu-32480293db49e98c8dc891764caf726e4aa4d2a6.zip qemu-32480293db49e98c8dc891764caf726e4aa4d2a6.tar.gz qemu-32480293db49e98c8dc891764caf726e4aa4d2a6.tar.bz2 | |
hw/i2c: pmbus: add registers
- add the VOUT_MIN and STATUS_MFR registers
Signed-off-by: Titus Rwantare <titusr@google.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Corey Minyard <cminyard@mvista.com>
Message-Id: <20220307200605.4001451-2-titusr@google.com>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
| -rw-r--r-- | hw/i2c/pmbus_device.c | 24 | ||||
| -rw-r--r-- | include/hw/i2c/pmbus_device.h | 3 |
2 files changed, 27 insertions, 0 deletions
diff --git a/hw/i2c/pmbus_device.c b/hw/i2c/pmbus_device.c index 24f8f52..07a45c9 100644 --- a/hw/i2c/pmbus_device.c +++ b/hw/i2c/pmbus_device.c @@ -368,6 +368,14 @@ static uint8_t pmbus_receive_byte(SMBusDevice *smd) } break; + case PMBUS_VOUT_MIN: /* R/W word */ + if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) { + pmbus_send16(pmdev, pmdev->pages[index].vout_min); + } else { + goto passthough; + } + break; + /* TODO: implement coefficients support */ case PMBUS_POUT_MAX: /* R/W word */ @@ -708,6 +716,10 @@ static uint8_t pmbus_receive_byte(SMBusDevice *smd) pmbus_send8(pmdev, pmdev->pages[index].status_other); break; + case PMBUS_STATUS_MFR_SPECIFIC: /* R/W byte */ + pmbus_send8(pmdev, pmdev->pages[index].status_mfr_specific); + break; + case PMBUS_READ_EIN: /* Read-Only block 5 bytes */ if (pmdev->pages[index].page_flags & PB_HAS_EIN) { pmbus_send(pmdev, pmdev->pages[index].read_ein, 5); @@ -1149,6 +1161,14 @@ static int pmbus_write_data(SMBusDevice *smd, uint8_t *buf, uint8_t len) } break; + case PMBUS_VOUT_MIN: /* R/W word */ + if (pmdev->pages[index].page_flags & PB_HAS_VOUT_RATING) { + pmdev->pages[index].vout_min = pmbus_receive16(pmdev); + } else { + goto passthrough; + } + break; + case PMBUS_POUT_MAX: /* R/W word */ if (pmdev->pages[index].page_flags & PB_HAS_VOUT) { pmdev->pages[index].pout_max = pmbus_receive16(pmdev); @@ -1482,6 +1502,10 @@ static int pmbus_write_data(SMBusDevice *smd, uint8_t *buf, uint8_t len) pmdev->pages[index].status_other = pmbus_receive8(pmdev); break; + case PMBUS_STATUS_MFR_SPECIFIC: /* R/W byte */ + pmdev->pages[index].status_mfr_specific = pmbus_receive8(pmdev); + break; + case PMBUS_PAGE_PLUS_READ: /* Block Read-only */ case PMBUS_CAPABILITY: /* Read-Only byte */ case PMBUS_COEFFICIENTS: /* Read-only block 5 bytes */ diff --git a/include/hw/i2c/pmbus_device.h b/include/hw/i2c/pmbus_device.h index 62bd38c..72c0483 100644 --- a/include/hw/i2c/pmbus_device.h +++ b/include/hw/i2c/pmbus_device.h @@ -43,6 +43,7 @@ enum pmbus_registers { PMBUS_VOUT_DROOP = 0x28, /* R/W word */ PMBUS_VOUT_SCALE_LOOP = 0x29, /* R/W word */ PMBUS_VOUT_SCALE_MONITOR = 0x2A, /* R/W word */ + PMBUS_VOUT_MIN = 0x2B, /* R/W word */ PMBUS_COEFFICIENTS = 0x30, /* Read-only block 5 bytes */ PMBUS_POUT_MAX = 0x31, /* R/W word */ PMBUS_MAX_DUTY = 0x32, /* R/W word */ @@ -255,6 +256,7 @@ OBJECT_DECLARE_TYPE(PMBusDevice, PMBusDeviceClass, #define PB_HAS_TEMP3 BIT_ULL(42) #define PB_HAS_TEMP_RATING BIT_ULL(43) #define PB_HAS_MFR_INFO BIT_ULL(50) +#define PB_HAS_STATUS_MFR_SPECIFIC BIT_ULL(51) struct PMBusDeviceClass { SMBusDeviceClass parent_class; @@ -295,6 +297,7 @@ typedef struct PMBusPage { uint16_t vout_droop; /* R/W word */ uint16_t vout_scale_loop; /* R/W word */ uint16_t vout_scale_monitor; /* R/W word */ + uint16_t vout_min; /* R/W word */ uint8_t coefficients[5]; /* Read-only block 5 bytes */ uint16_t pout_max; /* R/W word */ uint16_t max_duty; /* R/W word */ |