diff options
Diffstat (limited to 'sys/dev/mmc/mmcbr_if.m')
| -rw-r--r-- | sys/dev/mmc/mmcbr_if.m | 29 |
1 files changed, 25 insertions, 4 deletions
diff --git a/sys/dev/mmc/mmcbr_if.m b/sys/dev/mmc/mmcbr_if.m index e82293d..34ffdb0 100644 --- a/sys/dev/mmc/mmcbr_if.m +++ b/sys/dev/mmc/mmcbr_if.m @@ -65,8 +65,21 @@ INTERFACE mmcbr; # -# Called by the mmcbus to setup the IO pins correctly, the voltage to use -# for the card, the type of selects, power modes and bus width. +# Default implementations of some methods. +# +CODE { + static int + null_switch_vccq(device_t brdev __unused, device_t reqdev __unused) + { + + return (0); + } +}; + +# +# Called by the mmcbus to set up the IO pins correctly, the common/core +# supply voltage (VDD/VCC) to use for the device, the clock frequency, the +# type of SPI chip select, power mode and bus width. # METHOD int update_ios { device_t brdev; @@ -74,10 +87,18 @@ METHOD int update_ios { }; # +# Called by the mmcbus to switch the signaling voltage (VCCQ). +# +METHOD int switch_vccq { + device_t brdev; + device_t reqdev; +} DEFAULT null_switch_vccq; + +# # Called by the mmcbus or its children to schedule a mmc request. These # requests are queued. Time passes. The bridge then gets notification -# of the status of request, who then notifies the requesting device via -# the xfer_done mmcbus method. +# of the status of the request, who then notifies the requesting device +# by calling the completion function supplied as part of the request. # METHOD int request { device_t brdev; |
