Difference between revisions of "Unit PL18X"

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----
 
----
  
−
''To be documented''
+
'''ARM PrimeCell PL180/181 Multimedia Card Interface Driver unit'''
 +
 
 +
The PL180/181 Multimedia Card is an ARM peripheral that is compatible with MMC multimedia cards and SD secure digital cards in memory mapped I/O format compatible with the ARM advanced peripheral bus (APB).
 +
 
 +
The design of the Pl180/181 allows for multiple cards per controller however this driver currently only supports attaching one card.
  
 
=== Constants ===
 
=== Constants ===
 
----
 
----
  
−
''To be documented''
+
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X specific constants''' <code> PL180_MMCI_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL180_MMCI_DESCRIPTION = 'ARM PrimeCell PL180 MMCI Host';</code>
 +
| Description of PL180 device
 +
|-
 +
| <code>PL181_MMCI_DESCRIPTION = 'ARM PrimeCell PL181 MMCI Host';</code>
 +
| Description of PL181 device
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X power control register''' <code> PL18X_MMCI_POWER_* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_POWER = $000;</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_POWER_OFF = $00;</code>
 +
| Power-off
 +
|-
 +
|colspan="2"|''Bits 1:0 - $01 Reserved''
 +
|-
 +
| <code>PL18X_MMCI_POWER_UP = $02;</code>
 +
| Power-up
 +
|-
 +
| <code>PL18X_MMCI_POWER_ON = $03;</code>
 +
| Power-on
 +
|-
 +
|colspan="2"|''Bits 5:2 - Output Voltage''
 +
|-
 +
| <code>PL18X_MMCI_POWER_OD = (1 shl 6);</code>
 +
| MCICMD output control
 +
|-
 +
| <code>PL18X_MMCI_POWER_ROD = (1 shl 7);</code>
 +
| Rod control
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
|colspan="2"|''The ST Micro version does not have ROD and reuses the voltage registers for direction settings''
 +
|-
 +
| <code>PL18X_MMCI_POWER_ST_DATA2DIREN = (1 shl 2);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_POWER_ST_CMDDIREN = (1 shl 3);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_POWER_ST_DATA0DIREN = (1 shl 4);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_POWER_ST_DATA31DIREN = (1 shl 5);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_POWER_ST_FBCLKEN = (1 shl 7);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_POWER_ST_DATA74DIREN = (1 shl 8);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X clock control register''' <code> PL18X_MMCI_CLOCK* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_CLOCK = $004;</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ENABLE = (1 shl 8);</code>
 +
| Enable MCI bus clock: 0 = Clock disabled / 1 = Clock enabled
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_PWRSAVE = (1 shl 9);</code>
 +
| Disable MCI clock output when bus is idle: 0 = Always enabled / 1 = Clock enabled when bus is active
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_BYPASS = (1 shl 10);</code>
 +
| Enable bypass of clock divide logic: 0 = Disable bypass / 1 = Enable bypass
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_4BIT_BUS = (1 shl 11);</code>
 +
| Enable wide bus mode: 0 = Standard bus mode (only MCIDAT0 used) / 1 = Wide bus mode (MCIDAT3:0 used)
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
|colspan="2"|''8bit wide buses, hardware flow contronl, negative edges and clock inversion supported in ST Micro U300 and Ux500 versions''
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ST_8BIT_BUS  = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ST_U300_HWFCEN = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ST_UX500_NEG_EDGE = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ST_UX500_HWFCEN = (1 shl 14);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ST_UX500_CLK_INV = (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Modified PL180 on Versatile Express platform''
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_ARM_HWFCEN = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
|colspan="2"|''Modified on Qualcomm Integrations''
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_QCOM_WIDEBUS_8 = (1 shl 10) or (1 shl 11);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_QCOM_FLOWENA = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_QCOM_INVERTOUT = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
|colspan="2"|''Select in latch data and command in''
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_QCOM_SELECT_IN_FBCLK = (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CLOCK_QCOM_SELECT_IN_DDR_MODE = (1 shl 14) or (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X argument register''' <code> PL18X_MMCI_ARGUMENT* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_ARGUMENT = $008;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|''Bits 31:0 Command Argument''
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X command register''' <code> PL18X_MMCI_COMMAND* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_COMMAND = $00c;</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Bits 5:0 Command Index''
 +
|-
 +
| <code>PL18X_MMCI_CPSM_RESPONSE = (1 shl 6);</code>
 +
| If set, CPSM waits for a response
 +
|-
 +
| <code>PL18X_MMCI_CPSM_LONGRSP = (1 shl 7);</code>
 +
| If set, CPSM receives a 136-bit long response
 +
|-
 +
| <code>PL18X_MMCI_CPSM_INTERRUPT = (1 shl 8);</code>
 +
| If set, CPSM disables command timer and waits for interrupt request
 +
|-
 +
| <code>PL18X_MMCI_CPSM_PENDING = (1 shl 9);</code>
 +
| If set, CPSM waits for CmdPend before it starts sending a command
 +
|-
 +
| <code>PL18X_MMCI_CPSM_ENABLE = (1 shl 10);</code>
 +
| If set, CPSM is enabled
 +
|-
 +
|colspan="2"|''Argument flag extenstions in the ST Micro versions''
 +
|-
 +
| <code>PL18X_MMCI_CPSM_ST_SDIO_SUSP = (1 shl 11);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_ST_ENCMD_COMPL = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_ST_NIEN = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_ST_CE_ATACMD = (1 shl 14);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
|colspan="2"|''Modified on Qualcomm Integrations''
 +
|-
 +
| <code>PL18X_MMCI_CPSM_QCOM_DATCMD = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_QCOM_MCIABORT = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_QCOM_CCSENABLE = (1 shl 14);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_QCOM_CCSDISABLE = (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_QCOM_AUTO_CMD19 = (1 shl 16);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CPSM_QCOM_AUTO_CMD21 = (1 shl 21);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X command response register''' <code> PL18X_MMCI_RESPCMD* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_RESPCMD = $010;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|''Bits 5:0 Response command index''
 +
|-
 +
|colspan="2"|''Bits 31:6 Reserved''
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X response registers''' <code> PL18X_MMCI_RESPONSE* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_RESPONSE0 = $014;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RESPONSE1 = $018;</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RESPONSE2 = $01c;</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RESPONSE3 = $020;</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Bits 31:0 Card Status''
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X data timer register''' <code> PL18X_MMCI_DATATIMER* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_DATATIMER = $024;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|''Bits 31:0 Data Timeout Period''
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X data length register''' <code> PL18X_MMCI_DATALENGTH* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_DATALENGTH = $028;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|''Bits 15:0 Data Length Value''
 +
|-
 +
|colspan="2"|''Bits 31:16 Reserved''
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X data control register''' <code> PL18X_MMCI_DATACTRL* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_DATACTRL = $02c;</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DPSM_ENABLE = (1 shl 0);</code>
 +
| Data transfer enabled
 +
|-
 +
| <code>PL18X_MMCI_DPSM_DIRECTION = (1 shl 1);</code>
 +
| Data transfer direction: 0 = From controller to card / 1 = From card to controller
 +
|-
 +
| <code>PL18X_MMCI_DPSM_MODE = (1 shl 2);</code>
 +
| Data transfer mode: 0 = Block data transfer / 1 = Stream data transfer
 +
|-
 +
| <code>PL18X_MMCI_DPSM_BLOCKSIZE = (1 shl 4);</code>
 +
| Data block length
 +
|-
 +
|colspan="2"|''Control register extensions in the ST Micro U300 and Ux500 versions''
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_RWSTART = (1 shl 8);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_RWSTOP = (1 shl 9);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_RWMOD = (1 shl 10);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_SDIOEN = (1 shl 11);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Control register extensions in the ST Micro Ux500 versions''
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_DMAREQCTL = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_DBOOTMODEEN = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_BUSYMODE = (1 shl 14);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_DPSM_DDRMODE = (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X data counter register''' <code> PL18X_MMCI_DATACNT* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_DATACNT = $030;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|''Bits 15:0 Remaining Data''
 +
|-
 +
|colspan="2"|''Bits 31:16 Reserved''
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X status register''' <code> PL18X_MMCI_STATUS* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_STATUS = $034;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDCRCFAIL = (1 shl 0);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATACRCFAIL = (1 shl 1);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDTIMEOUT = (1 shl 2);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATATIMEOUT = (1 shl 3);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXUNDERRUN = (1 shl 4);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXOVERRUN = (1 shl 5);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDRESPEND = (1 shl 6);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDSENT = (1 shl 7);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATAEND = (1 shl 8);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_STARTBITERR = (1 shl 9);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATABLOCKEND = (1 shl 10);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDACTIVE = (1 shl 11);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXACTIVE = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXACTIVE = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXFIFOHALFEMPTY = (1 shl 14);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXFIFOHALFFULL = (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXFIFOFULL = (1 shl 16);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXFIFOFULL = (1 shl 17);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXFIFOEMPTY = (1 shl 18);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXFIFOEMPTY = (1 shl 19);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXDATAAVLBL = (1 shl 20);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXDATAAVLBL = (1 shl 21);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Extended status bits for the ST Micro variants''
 +
|-
 +
| <code>PL18X_MMCI_ST_SDIOIT = (1 shl 22);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_CEATAEND = (1 shl 23);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_CARDBUSY = (1 shl 24);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X clear register''' <code> PL18X_MMCI_CLEAR* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_CLEAR = $038;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDCRCFAILCLR = (1 shl 0);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATACRCFAILCLR = (1 shl 1);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDTIMEOUTCLR = (1 shl 2);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATATIMEOUTCLR = (1 shl 3);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXUNDERRUNCLR = (1 shl 4);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXOVERRUNCLR = (1 shl 5);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDRESPENDCLR = (1 shl 6);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDSENTCLR = (1 shl 7);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATAENDCLR = (1 shl 8);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_STARTBITERRCLR = (1 shl 9);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATABLOCKENDCLR = (1 shl 10);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Extended status bits for the ST Micro variants''
 +
|-
 +
| <code>PL18X_MMCI_ST_SDIOITC = (1 shl 22);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_CEATAENDC = (1 shl 23);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_BUSYENDC = (1 shl 24);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X interrupt mask registers''' <code> PL18X_MMCI_MASK* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_MASK0 = $03c;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>PL18X_MMCI_MASK1 = $040;</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDCRCFAILMASK = (1 shl 0);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATACRCFAILMASK = (1 shl 1);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDTIMEOUTMASK = (1 shl 2);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATATIMEOUTMASK = (1 shl 3);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXUNDERRUNMASK = (1 shl 4);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXOVERRUNMASK = (1 shl 5);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDRESPENDMASK = (1 shl 6);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDSENTMASK = (1 shl 7);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATAENDMASK = (1 shl 8);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_STARTBITERRMASK = (1 shl 9);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_DATABLOCKENDMASK = (1 shl 10);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_CMDACTIVEMASK = (1 shl 11);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXACTIVEMASK = (1 shl 12);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXACTIVEMASK = (1 shl 13);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXFIFOHALFEMPTYMASK = (1 shl 14);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXFIFOHALFFULLMASK = (1 shl 15);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXFIFOFULLMASK  = (1 shl 16);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXFIFOFULLMASK = (1 shl 17);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXFIFOEMPTYMASK = (1 shl 18);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXFIFOEMPTYMASK = (1 shl 19);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_TXDATAAVLBLMASK = (1 shl 20);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_RXDATAAVLBLMASK = (1 shl 21);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''Extended status bits for the ST Micro variants''
 +
|-
 +
| <code>PL18X_MMCI_ST_SDIOITMASK = (1 shl 22);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_CEATAENDMASK = (1 shl 23);</code>
 +
| &nbsp;
 +
|-
 +
| <code>PL18X_MMCI_ST_BUSYEND = (1 shl 24);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X SD card select register''' <code> PL18X_MMCI_SELECT* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_SELECT = $044;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X FIFO counter register''' <code> PL18X_MMCI_FIFOCNT* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_FIFOCNT = $048;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X data FIFO register''' <code> PL18X_MMCI_FIFO* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_FIFO = $080;</code>
 +
| To $0bc
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X peripheral identification register''' <code> PL18X_MMCI_PERIPHID* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_PERIPHID = $FE0;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 20px; padding-bottom: 15px;">
 +
<div style="font-size: 14px; padding-left: 12px;">'''PL18X PrimeCell identification register''' <code> PL18X_MMCI_PCELLID* </code></div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PL18X_MMCI_PCELLID = $FF0;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|&nbsp;
 +
|-
 +
| <code>PL18X_MMCI_IRQENABLE = (PL18X_MMCI_CMDCRCFAILMASK or PL18X_MMCI_DATACRCFAILMASK or PL18X_MMCI_CMDTIMEOUTMASK or PL18X_MMCI_DATATIMEOUTMASK or PL18X_MMCI_TXUNDERRUNMASK or PL18X_MMCI_RXOVERRUNMASK or PL18X_MMCI_CMDRESPENDMASK or PL18X_MMCI_CMDSENTMASK or PL18X_MMCI_STARTBITERRMASK);</code>
 +
| &nbsp;
 +
|-
 +
|colspan="2"|''These interrupts are directed to IRQ1 when two IRQ lines are available''
 +
|-
 +
| <code>PL18X_MMCI_IRQ1MASK = (PL18X_MMCI_RXFIFOHALFFULLMASK or PL18X_MMCI_RXDATAAVLBLMASK or PL18X_MMCI_TXFIFOHALFEMPTYMASK);</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
<br />
  
 
=== Type definitions ===
 
=== Type definitions ===
 
----
 
----
  
−
''To be documented''
+
 
 +
'''PL18X version Id'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PPL18XVersionID = ^TPL18XVersionID;</code>
 +
 
 +
<code>TPL18XVersionID = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>PeripheralID:LongWord;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
| <code>PeripheralMask:LongWord;</code>
 +
| &nbsp;
 +
|-
 +
| <code>VersionData:PPL18XVersionData;</code>
 +
| &nbsp;
 +
|-
 +
|}
 +
</div></div>
 +
 
 +
'''PL18X version data'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PPL18XVersionData = ^TPL18XVersionData;</code>
 +
 
 +
<code>TPL18XVersionData = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
| <code>Name:String;</code>
 +
| Name of the device
 +
|-
 +
| <code>ClockRegister:LongWord;</code>
 +
| Default value for MCICLOCK register
 +
|-
 +
| <code>ClockEnable:LongWord;</code>
 +
| Enable value for MMCICLOCK register
 +
|-
 +
| <code>Clock8BitEnable:LongWord;</code>
 +
| Enable value for 8 bit bus
 +
|-
 +
| <code>ClockNegativeEdgeEnable:LongWord;</code>
 +
| Enable value for inverted data/cmd output
 +
|-
 +
| <code>DataLengthBits:LongWord;</code>
 +
| Number of bits in the MMCIDATALENGTH register
 +
|-
 +
| <code>FIFOSize:LongWord;</code>
 +
| Number of bytes that can be written when MMCI_TXFIFOEMPTY is asserted (likewise for RX)
 +
|-
 +
| <code>FIFOHalfSize:LongWord;</code>
 +
| Number of bytes that can be written when MCI_TXFIFOHALFEMPTY is asserted (likewise for RX)
 +
|-
 +
| <code>DataCommandEnable:LongWord;</code>
 +
| Enable value for data commands
 +
|-
 +
| <code>DataControlMaskDDR:LongWord;</code>
 +
| DDR mode mask in MMCIDATACTRL register
 +
|-
 +
| <code>DataControlMaskSDIO:LongWord;</code>
 +
| SDIO enable mask in MMCIDATACTRL register
 +
|-
 +
| <code>STSDIO:LongBool;</code>
 +
| Enable ST specific SDIO logic
 +
|-
 +
| <code>STClockDivider:LongBool;</code>
 +
| True if using a ST-specific clock divider algorithm
 +
|-
 +
| <code>BlockSizeDataControl16:LongBool;</code>
 +
| True if Block size is at b16..b30 position in MMCIDATACTRL register
 +
|-
 +
| <code>BlockSizeDataControl4:LongBool;</code>
 +
| True if Block size is at b4..b16 position in MMCIDATACTRL register
 +
|-
 +
| <code>PowerPowerUp:LongWord;</code>
 +
| Power up value for MMCIPOWER register
 +
|-
 +
| <code>ClockMaximum:LongWord;</code>
 +
| Maximum clk frequency supported by the controller
 +
|-
 +
| <code>SignalDirection:LongBool;</code>
 +
| Input/out direction of bus signals can be indicated
 +
|-
 +
| <code>PowerClockGate:LongBool;</code>
 +
| MMCIPOWER register must be used to gate the clock
 +
|-
 +
| <code>BusyDetect:LongBool;</code>
 +
| True if busy detection on dat0 is supported
 +
|-
 +
| <code>PowerNoPower:LongBool;</code>
 +
| Bits in MMCIPOWER don't control external power supply
 +
|-
 +
| <code>ExplicitMClockControl:LongBool;</code>
 +
| Enable explicit mclk control in driver
 +
|-
 +
| <code>QualcommFIFO:LongBool;</code>
 +
| Enable Qualcomm specific FIFO PIO read logic
 +
|-
 +
| <code>QualcommDMA:LongBool;</code>
 +
| Enable Qualcomm specific DMA glue for DMA transfers
 +
|-
 +
| <code>ReversedIRQ:LongBool;</code>
 +
| Handle data irq before cmd irq
 +
|-
 +
|}
 +
</div></div>
 +
 
 +
'''PL18X MMCI registers'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PPL18XMMCIRegisters = ^TPL18XMMCIRegisters;</code>
 +
 
 +
<code>TPL18XMMCIRegisters = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
|colspan="2"|Note: Layout of the PL18X registers (See: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0172a/i1006458.html)
 +
|-
 +
| <code>Power:LongWord;</code>
 +
| Power control register
 +
|-
 +
| <code>Clock:LongWord;</code>
 +
| Clock control register
 +
|-
 +
| <code>Argument:LongWord;</code>
 +
| Argument register
 +
|-
 +
| <code>Command:LongWord;</code>
 +
| Command register
 +
|-
 +
| <code>RespCmd:LongWord;</code>
 +
| Response command register
 +
|-
 +
| <code>Response0:LongWord;</code>
 +
| Response register
 +
|-
 +
| <code>Response1:LongWord;</code>
 +
| Response register
 +
|-
 +
| <code>Response2:LongWord;</code>
 +
| Response register
 +
|-
 +
| <code>Response3:LongWord;</code>
 +
| Response register
 +
|-
 +
| <code>DataTimer:LongWord;</code>
 +
| Data timer
 +
|-
 +
| <code>DataLength:LongWord;</code>
 +
| Data length register
 +
|-
 +
| <code>DataCtrl:LongWord;</code>
 +
| Data control register
 +
|-
 +
| <code>DataCnt:LongWord;</code>
 +
| Data counter
 +
|-
 +
| <code>Status:LongWord;</code>
 +
| Status register
 +
|-
 +
| <code>Clear:LongWord;</code>
 +
| Clear register
 +
|-
 +
| <code>Mask0:LongWord;</code>
 +
| Interrupt 0 mask register
 +
|-
 +
| <code>Mask1:LongWord;</code>
 +
| Interrupt 1 mask register
 +
|-
 +
| <code>Select:LongWord;</code>
 +
| Secure digital memory card select register
 +
|-
 +
| <code>FifoCnt:LongWord;</code>
 +
| FIFO counter
 +
|-
 +
| <code>Reserved:array[$4C..$7C] of Byte;</code>
 +
| Reserved
 +
|-
 +
| <code>FIFO:LongWord;</code>
 +
| Data FIFO register (0x80 to 0xBC)
 +
|-
 +
|}
 +
</div></div>
 +
 +
'''PL18X SDHCI get RXFIFO count'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>TPL18XSDHCIGetRXFIFOCount = function(SDHCI:PPL18XSDHCIHost; Status,Remain:LongWord):LongWord;</code>
 +
| style="width: 40%;"|
 +
|-
 +
|}
 +
 
 +
'''PL18X SDHCI host'''
 +
 
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial;">
 +
<code>PPL18XSDHCIHost = ^TPL18XSDHCIHost;</code>
 +
 
 +
<code>TPL18XSDHCIHost = record</code>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
|colspan="2"|''SDHCI Properties''
 +
|-
 +
| <code>SDHCI:TSDHCIHost;</code>
 +
| style="width: 50%;"|&nbsp;
 +
|-
 +
|colspan="2"|''PL18X Properties''
 +
|-
 +
| <code>IRQ0:LongWord;</code>
 +
| First host IRQ line
 +
|-
 +
| <code>IRQ1:LongWord;</code>
 +
| Second host IRQ line
 +
|-
 +
| <code>EnableFIQ:LongBool;</code>
 +
| Use FIQ instead of IRQ
 +
|-
 +
| <code>SingleIRQ:LongBool;</code>
 +
| The host only has a single IRQ line instead of the standard 2 lines
 +
|-
 +
| <code>Registers:PPL18XMMCIRegisters;</code>
 +
| Host registers
 +
|-
 +
| <code>Version:PPL18XVersionData;</code>
 +
| Host version data
 +
|-
 +
| <code>ClockRegister:LongWord;</code>
 +
| Current clock register value
 +
|-
 +
| <code>PowerRegister:LongWord;</code>
 +
| Current power register value
 +
|-
 +
| <code>DataCtrlRegister:LongWord;</code>
 +
| Current data control register value
 +
|-
 +
| <code>BusyStatus:LongWord;</code>
 +
| Current Busy Status for ST Micro variants
 +
|-
 +
| <code>GetRXFIFOCount:TPL18XSDHCIGetRXFIFOCount;</code>
 +
| Model specific GetRXFIFOCount function
 +
|-
 +
|}
 +
</div></div>
 +
<br />
  
 
=== Public variables ===
 
=== Public variables ===
 
----
 
----
  
−
''To be documented''
+
 
 +
'''PL18X specific variables'''
 +
 
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>PL18X_MMCI_FIQ_ENABLED:LongBool;</code>
 +
| style="width: 40%;"|The SDHCI uses Fast Interrupt Requests (FIQ) instead of IRQ
 +
|-
 +
|}
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>PL18X_MMCI_MIN_FREQ:LongWord = 400000;</code>
 +
| style="width: 40%;"|Minimum clock frequency for SDHCI (Default minimum of 400KHz)
 +
|-
 +
|}
 +
{| class="wikitable" style="font-size: 14px; text-align: left; width: 100%; height: 50px;"
 +
|-
 +
| <code>PL18X_MMCI_MAX_FREQ:LongWord = 400000;</code>
 +
| style="width: 40%;"|Maximum clock frequency for SDHCI (Default maximum of 400KHz)
 +
|-
 +
|}
 +
<br />
  
 
=== Function declarations ===
 
=== Function declarations ===
 
----
 
----
  
−
''To be documented''
 
  
 +
'''Initialization functions'''
 +
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XInit;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Initialize the PL18X unit and version table</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Called only during system startup
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
 +
'''PL18X functions'''
 +
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL180SDHCICreate(Address:PtrUInt; const Name:String; IRQ0,IRQ1,ClockMinimum,ClockMaximum:LongWord; CardDetect:TMMCDeviceGetCardDetect = nil; WriteProtect:TMMCDeviceGetWriteProtect = nil):PSDHCIHost;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Create and register a new PL180 SDHCI device which can be accessed using the SDHCI API</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Address
 +
| The address of the PL180 registers
 +
|-
 +
! Name
 +
| The text description of this device which will show in the device list (Optional)
 +
|-
 +
! IRQ0
 +
| The interrupt 0 number for the PL180
 +
|-
 +
! IRQ1
 +
| The interrupt 1 number for the PL180
 +
|-
 +
! ClockMinimum
 +
| The minimum frequency for the Pl180 clock
 +
|-
 +
! ClockMaximum
 +
| The maximum frequency for the Pl180 clock
 +
|-
 +
! Return
 +
| Pointer to the new SDHCI device or nil if the SDHCI device could not be created
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL181SDHCICreate(Address:PtrUInt; const Name:String; IRQ0,IRQ1,ClockMinimum,ClockMaximum:LongWord; CardDetect:TMMCDeviceGetCardDetect = nil; WriteProtect:TMMCDeviceGetWriteProtect = nil):PSDHCIHost;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Create and register a new PL181 SDHCI device which can be accessed using the SDHCI API</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Address
 +
| The address of the PL181 registers
 +
|-
 +
! Name
 +
| The text description of this device which will show in the device list (Optional)
 +
|-
 +
! IRQ0
 +
| The interrupt 0 number for the PL181
 +
|-
 +
! IRQ1
 +
| The interrupt 1 number for the PL181
 +
|-
 +
! ClockMinimum
 +
| The minimum frequency for the Pl181 clock
 +
|-
 +
! ClockMaximum
 +
| The maximum frequency for the Pl181 clock
 +
|-
 +
! Return
 +
| Pointer to the new SDHCI device or nil if the SDHCI device could not be created
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIDestroy(SDHCI:PSDHCIHost):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Stop, deregister and destroy a PL18X SDHCI device created by this driver</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! SDHCI
 +
| The SDHCI device to destroy
 +
|-
 +
! Return
 +
| ERROR_SUCCESS if completed or another error code on failure
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
 +
'''PL18X MMC functions'''
 +
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XMMCDeviceGetCardDetect(MMC:PMMCDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of MMCDeviceGetCardDetect API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use MMCDeviceGetCardDetect instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XMMCDeviceGetWriteProtect(MMC:PMMCDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of MMCDeviceGetWriteProtect API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use MMCDeviceGetWriteProtect instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XMMCDeviceSendCommand(MMC:PMMCDevice; Command:PMMCCommand):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of MMCDeviceSendCommand API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use MMCDeviceSendCommand instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XMMCDeviceSetIOS(MMC:PMMCDevice):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of MMCDeviceSetIOS API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use MMCDeviceSetIOS instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
 +
'''PL18X SDHCI functions'''
 +
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIHostStart(SDHCI:PSDHCIHost):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostStart API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostStart instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIHostStop(SDHCI:PSDHCIHost):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostStop API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostStop instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIHostReadByte(SDHCI:PSDHCIHost; Reg:LongWord):Byte;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostReadByte API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostReadByte instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIHostReadWord(SDHCI:PSDHCIHost; Reg:LongWord):Word;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostReadWord API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostReadWord instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIHostReadLong(SDHCI:PSDHCIHost; Reg:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostReadLong API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostReadLong instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIHostWriteByte(SDHCI:PSDHCIHost; Reg:LongWord; Value:Byte);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostWriteByte API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostWriteByte instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIHostWriteWord(SDHCI:PSDHCIHost; Reg:LongWord; Value:Word);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostWriteWord API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostWriteWord instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIHostWriteLong(SDHCI:PSDHCIHost; Reg:LongWord; Value:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCIHostWriteLong API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCIHostWriteLong instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIHostSetPower(SDHCI:PSDHCIHost; Power:Word):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Implementation of SDHCISetPower API for PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications, use SDHCISetPower instead.
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIInterruptHandler(SDHCI:PPL18XSDHCIHost);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Interrupt handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIDataInterrupt(SDHCI:PPL18XSDHCIHost; Status:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Data interrupt handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
Caller must hold the host lock
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCICommandInterrupt(SDHCI:PPL18XSDHCIHost; Status:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Command interrupt handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
Caller must hold the host lock
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIStopData(SDHCI:PPL18XSDHCIHost);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Data stop handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
Caller must hold the host lock
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSDHCIPIOInterruptHandler(SDHCI:PPL18XSDHCIHost);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' PIO Interrupt handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSHDCIReadPIO(SDHCI:PPL18XSDHCIHost ;Buffer:Pointer; Remain:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' PIO read interrupt handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
Caller must hold the host lock
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XSDHCIWritePIO(SDHCI:PPL18XSDHCIHost; Buffer:Pointer; Remain,Status:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' PIO read interrupt handler for the PL18X SDHCI</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| Not intended to be called directly by applications
 +
Caller must hold the host lock
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
 +
'''PL18X helper functions'''
 +
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XGetPeripheralID(SDHCI:PPL18XSDHCIHost):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the Peripheral Id for a PL18X SDHCI device</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XGetVersionData(SDHCI:PPL18XSDHCIHost):PPL18XVersionData;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Return the version data for a PL18X SDHCI device based on the Peripheral Id</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XGetRXFIFOCount(SDHCI:PPL18XSDHCIHost; Status,Remain:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Determine the receive FIFO count available</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
 +
{| class="wikitable" style="font-size: 14px; background: white;"
 +
|-
 +
! Note
 +
| None documented
 +
|-
 +
|}
 +
</div></div>
 +
<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">function PL18XQualcommGetRXFIFOCount(SDHCI:PPL18XSDHCIHost; Status,Remain:LongWord):LongWord;</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Determine the receive FIFO count available</div>
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
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| None documented
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XRegisterDelay(SDHCI:PPL18XSDHCIHost);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Delay for the required amount of time after a register write</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
 +
| None documented
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|-
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|}
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</div></div>
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<br />
 +
<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSetClockRegister(SDHCI:PPL18XSDHCIHost; MMC:PMMCDevice; Desired:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the current clock rate in the clock register</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
 +
| Caller must hold the host lock
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">procedure PL18XSetPowerRegister(SDHCI:PPL18XSDHCIHost; Value:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the current power state in the power register</div>
 +
<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
 +
| Caller must hold the host lock
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
 +
<pre style="border: 0; padding-bottom:0px;">procedure PL18XSetInterruptMask1(SDHCI:PPL18XSDHCIHost; Mask:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Setup the interrupt mask to use either Mask0 or Mask1 depending on configuration</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
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| Caller must hold the host lock
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">procedure PL18XWriteClockRegister(SDHCI:PPL18XSDHCIHost; Clock:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Write to the clock register</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
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| Caller must hold the host lock
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">procedure PL18XWritePowerRegister(SDHCI:PPL18XSDHCIHost; Power:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Write to the power register</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
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| Caller must hold the host lock
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|-
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|}
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</div></div>
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<br />
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<div class="toccolours mw-collapsible mw-collapsed" style="border: 1; font-family: arial; padding-top: 0px; padding-bottom: 15px;">
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<pre style="border: 0; padding-bottom:0px;">procedure PL18XWriteDataCtrlRegister(SDHCI:PPL18XSDHCIHost; DataCtrl:LongWord);</pre>
 +
<div style="font-size: 14px; padding-left: 12px;">'''Description:''' Write to the data control register</div>
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<div class="mw-collapsible-content" style="text-align: left; padding-left: 5px;">
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{| class="wikitable" style="font-size: 14px; background: white;"
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|-
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! Note
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| Caller must hold the host lock
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|-
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|}
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</div></div>
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<br />
  
 
Return to [[Unit_Reference|Unit Reference]]
 
Return to [[Unit_Reference|Unit Reference]]

Latest revision as of 06:06, 7 April 2023

Return to Unit Reference


Description

ARM PrimeCell PL180/181 Multimedia Card Interface Driver unit

The PL180/181 Multimedia Card is an ARM peripheral that is compatible with MMC multimedia cards and SD secure digital cards in memory mapped I/O format compatible with the ARM advanced peripheral bus (APB).

The design of the Pl180/181 allows for multiple cards per controller however this driver currently only supports attaching one card.

Constants


PL18X specific constants PL180_MMCI_*
PL180_MMCI_DESCRIPTION = 'ARM PrimeCell PL180 MMCI Host'; Description of PL180 device
PL181_MMCI_DESCRIPTION = 'ARM PrimeCell PL181 MMCI Host'; Description of PL181 device


PL18X power control register PL18X_MMCI_POWER_*
PL18X_MMCI_POWER = $000;  
PL18X_MMCI_POWER_OFF = $00; Power-off
Bits 1:0 - $01 Reserved
PL18X_MMCI_POWER_UP = $02; Power-up
PL18X_MMCI_POWER_ON = $03; Power-on
Bits 5:2 - Output Voltage
PL18X_MMCI_POWER_OD = (1 shl 6); MCICMD output control
PL18X_MMCI_POWER_ROD = (1 shl 7); Rod control
 
The ST Micro version does not have ROD and reuses the voltage registers for direction settings
PL18X_MMCI_POWER_ST_DATA2DIREN = (1 shl 2);  
PL18X_MMCI_POWER_ST_CMDDIREN = (1 shl 3);  
PL18X_MMCI_POWER_ST_DATA0DIREN = (1 shl 4);  
PL18X_MMCI_POWER_ST_DATA31DIREN = (1 shl 5);  
PL18X_MMCI_POWER_ST_FBCLKEN = (1 shl 7);  
PL18X_MMCI_POWER_ST_DATA74DIREN = (1 shl 8);  


PL18X clock control register PL18X_MMCI_CLOCK*
PL18X_MMCI_CLOCK = $004;  
PL18X_MMCI_CLOCK_ENABLE = (1 shl 8); Enable MCI bus clock: 0 = Clock disabled / 1 = Clock enabled
PL18X_MMCI_CLOCK_PWRSAVE = (1 shl 9); Disable MCI clock output when bus is idle: 0 = Always enabled / 1 = Clock enabled when bus is active
PL18X_MMCI_CLOCK_BYPASS = (1 shl 10); Enable bypass of clock divide logic: 0 = Disable bypass / 1 = Enable bypass
PL18X_MMCI_CLOCK_4BIT_BUS = (1 shl 11); Enable wide bus mode: 0 = Standard bus mode (only MCIDAT0 used) / 1 = Wide bus mode (MCIDAT3:0 used)
 
8bit wide buses, hardware flow contronl, negative edges and clock inversion supported in ST Micro U300 and Ux500 versions
PL18X_MMCI_CLOCK_ST_8BIT_BUS = (1 shl 12);  
PL18X_MMCI_CLOCK_ST_U300_HWFCEN = (1 shl 13);  
PL18X_MMCI_CLOCK_ST_UX500_NEG_EDGE = (1 shl 13);  
PL18X_MMCI_CLOCK_ST_UX500_HWFCEN = (1 shl 14);  
PL18X_MMCI_CLOCK_ST_UX500_CLK_INV = (1 shl 15);  
Modified PL180 on Versatile Express platform
PL18X_MMCI_CLOCK_ARM_HWFCEN = (1 shl 12);  
 
Modified on Qualcomm Integrations
PL18X_MMCI_CLOCK_QCOM_WIDEBUS_8 = (1 shl 10) or (1 shl 11);  
PL18X_MMCI_CLOCK_QCOM_FLOWENA = (1 shl 12);  
PL18X_MMCI_CLOCK_QCOM_INVERTOUT = (1 shl 13);  
 
Select in latch data and command in
PL18X_MMCI_CLOCK_QCOM_SELECT_IN_FBCLK = (1 shl 15);  
PL18X_MMCI_CLOCK_QCOM_SELECT_IN_DDR_MODE = (1 shl 14) or (1 shl 15);  


PL18X argument register PL18X_MMCI_ARGUMENT*
PL18X_MMCI_ARGUMENT = $008;  
Bits 31:0 Command Argument


PL18X command register PL18X_MMCI_COMMAND*
PL18X_MMCI_COMMAND = $00c;  
Bits 5:0 Command Index
PL18X_MMCI_CPSM_RESPONSE = (1 shl 6); If set, CPSM waits for a response
PL18X_MMCI_CPSM_LONGRSP = (1 shl 7); If set, CPSM receives a 136-bit long response
PL18X_MMCI_CPSM_INTERRUPT = (1 shl 8); If set, CPSM disables command timer and waits for interrupt request
PL18X_MMCI_CPSM_PENDING = (1 shl 9); If set, CPSM waits for CmdPend before it starts sending a command
PL18X_MMCI_CPSM_ENABLE = (1 shl 10); If set, CPSM is enabled
Argument flag extenstions in the ST Micro versions
PL18X_MMCI_CPSM_ST_SDIO_SUSP = (1 shl 11);  
PL18X_MMCI_CPSM_ST_ENCMD_COMPL = (1 shl 12);  
PL18X_MMCI_CPSM_ST_NIEN = (1 shl 13);  
PL18X_MMCI_CPSM_ST_CE_ATACMD = (1 shl 14);  
 
Modified on Qualcomm Integrations
PL18X_MMCI_CPSM_QCOM_DATCMD = (1 shl 12);  
PL18X_MMCI_CPSM_QCOM_MCIABORT = (1 shl 13);  
PL18X_MMCI_CPSM_QCOM_CCSENABLE = (1 shl 14);  
PL18X_MMCI_CPSM_QCOM_CCSDISABLE = (1 shl 15);  
PL18X_MMCI_CPSM_QCOM_AUTO_CMD19 = (1 shl 16);  
PL18X_MMCI_CPSM_QCOM_AUTO_CMD21 = (1 shl 21);  


PL18X command response register PL18X_MMCI_RESPCMD*
PL18X_MMCI_RESPCMD = $010;  
Bits 5:0 Response command index
Bits 31:6 Reserved


PL18X response registers PL18X_MMCI_RESPONSE*
PL18X_MMCI_RESPONSE0 = $014;  
PL18X_MMCI_RESPONSE1 = $018;  
PL18X_MMCI_RESPONSE2 = $01c;  
PL18X_MMCI_RESPONSE3 = $020;  
Bits 31:0 Card Status


PL18X data timer register PL18X_MMCI_DATATIMER*
PL18X_MMCI_DATATIMER = $024;  
Bits 31:0 Data Timeout Period


PL18X data length register PL18X_MMCI_DATALENGTH*
PL18X_MMCI_DATALENGTH = $028;  
Bits 15:0 Data Length Value
Bits 31:16 Reserved


PL18X data control register PL18X_MMCI_DATACTRL*
PL18X_MMCI_DATACTRL = $02c;  
PL18X_MMCI_DPSM_ENABLE = (1 shl 0); Data transfer enabled
PL18X_MMCI_DPSM_DIRECTION = (1 shl 1); Data transfer direction: 0 = From controller to card / 1 = From card to controller
PL18X_MMCI_DPSM_MODE = (1 shl 2); Data transfer mode: 0 = Block data transfer / 1 = Stream data transfer
PL18X_MMCI_DPSM_BLOCKSIZE = (1 shl 4); Data block length
Control register extensions in the ST Micro U300 and Ux500 versions
PL18X_MMCI_ST_DPSM_RWSTART = (1 shl 8);  
PL18X_MMCI_ST_DPSM_RWSTOP = (1 shl 9);  
PL18X_MMCI_ST_DPSM_RWMOD = (1 shl 10);  
PL18X_MMCI_ST_DPSM_SDIOEN = (1 shl 11);  
Control register extensions in the ST Micro Ux500 versions
PL18X_MMCI_ST_DPSM_DMAREQCTL = (1 shl 12);  
PL18X_MMCI_ST_DPSM_DBOOTMODEEN = (1 shl 13);  
PL18X_MMCI_ST_DPSM_BUSYMODE = (1 shl 14);  
PL18X_MMCI_ST_DPSM_DDRMODE = (1 shl 15);  


PL18X data counter register PL18X_MMCI_DATACNT*
PL18X_MMCI_DATACNT = $030;  
Bits 15:0 Remaining Data
Bits 31:16 Reserved


PL18X status register PL18X_MMCI_STATUS*
PL18X_MMCI_STATUS = $034;  
PL18X_MMCI_CMDCRCFAIL = (1 shl 0);  
PL18X_MMCI_DATACRCFAIL = (1 shl 1);  
PL18X_MMCI_CMDTIMEOUT = (1 shl 2);  
PL18X_MMCI_DATATIMEOUT = (1 shl 3);  
PL18X_MMCI_TXUNDERRUN = (1 shl 4);  
PL18X_MMCI_RXOVERRUN = (1 shl 5);  
PL18X_MMCI_CMDRESPEND = (1 shl 6);  
PL18X_MMCI_CMDSENT = (1 shl 7);  
PL18X_MMCI_DATAEND = (1 shl 8);  
PL18X_MMCI_STARTBITERR = (1 shl 9);  
PL18X_MMCI_DATABLOCKEND = (1 shl 10);  
PL18X_MMCI_CMDACTIVE = (1 shl 11);  
PL18X_MMCI_TXACTIVE = (1 shl 12);  
PL18X_MMCI_RXACTIVE = (1 shl 13);  
PL18X_MMCI_TXFIFOHALFEMPTY = (1 shl 14);  
PL18X_MMCI_RXFIFOHALFFULL = (1 shl 15);  
PL18X_MMCI_TXFIFOFULL = (1 shl 16);  
PL18X_MMCI_RXFIFOFULL = (1 shl 17);  
PL18X_MMCI_TXFIFOEMPTY = (1 shl 18);  
PL18X_MMCI_RXFIFOEMPTY = (1 shl 19);  
PL18X_MMCI_TXDATAAVLBL = (1 shl 20);  
PL18X_MMCI_RXDATAAVLBL = (1 shl 21);  
Extended status bits for the ST Micro variants
PL18X_MMCI_ST_SDIOIT = (1 shl 22);  
PL18X_MMCI_ST_CEATAEND = (1 shl 23);  
PL18X_MMCI_ST_CARDBUSY = (1 shl 24);  


PL18X clear register PL18X_MMCI_CLEAR*
PL18X_MMCI_CLEAR = $038;  
PL18X_MMCI_CMDCRCFAILCLR = (1 shl 0);  
PL18X_MMCI_DATACRCFAILCLR = (1 shl 1);  
PL18X_MMCI_CMDTIMEOUTCLR = (1 shl 2);  
PL18X_MMCI_DATATIMEOUTCLR = (1 shl 3);  
PL18X_MMCI_TXUNDERRUNCLR = (1 shl 4);  
PL18X_MMCI_RXOVERRUNCLR = (1 shl 5);  
PL18X_MMCI_CMDRESPENDCLR = (1 shl 6);  
PL18X_MMCI_CMDSENTCLR = (1 shl 7);  
PL18X_MMCI_DATAENDCLR = (1 shl 8);  
PL18X_MMCI_STARTBITERRCLR = (1 shl 9);  
PL18X_MMCI_DATABLOCKENDCLR = (1 shl 10);  
Extended status bits for the ST Micro variants
PL18X_MMCI_ST_SDIOITC = (1 shl 22);  
PL18X_MMCI_ST_CEATAENDC = (1 shl 23);  
PL18X_MMCI_ST_BUSYENDC = (1 shl 24);  


PL18X interrupt mask registers PL18X_MMCI_MASK*
PL18X_MMCI_MASK0 = $03c;  
PL18X_MMCI_MASK1 = $040;  
PL18X_MMCI_CMDCRCFAILMASK = (1 shl 0);  
PL18X_MMCI_DATACRCFAILMASK = (1 shl 1);  
PL18X_MMCI_CMDTIMEOUTMASK = (1 shl 2);  
PL18X_MMCI_DATATIMEOUTMASK = (1 shl 3);  
PL18X_MMCI_TXUNDERRUNMASK = (1 shl 4);  
PL18X_MMCI_RXOVERRUNMASK = (1 shl 5);  
PL18X_MMCI_CMDRESPENDMASK = (1 shl 6);  
PL18X_MMCI_CMDSENTMASK = (1 shl 7);  
PL18X_MMCI_DATAENDMASK = (1 shl 8);  
PL18X_MMCI_STARTBITERRMASK = (1 shl 9);  
PL18X_MMCI_DATABLOCKENDMASK = (1 shl 10);  
PL18X_MMCI_CMDACTIVEMASK = (1 shl 11);  
PL18X_MMCI_TXACTIVEMASK = (1 shl 12);  
PL18X_MMCI_RXACTIVEMASK = (1 shl 13);  
PL18X_MMCI_TXFIFOHALFEMPTYMASK = (1 shl 14);  
PL18X_MMCI_RXFIFOHALFFULLMASK = (1 shl 15);  
PL18X_MMCI_TXFIFOFULLMASK = (1 shl 16);  
PL18X_MMCI_RXFIFOFULLMASK = (1 shl 17);  
PL18X_MMCI_TXFIFOEMPTYMASK = (1 shl 18);  
PL18X_MMCI_RXFIFOEMPTYMASK = (1 shl 19);  
PL18X_MMCI_TXDATAAVLBLMASK = (1 shl 20);  
PL18X_MMCI_RXDATAAVLBLMASK = (1 shl 21);  
Extended status bits for the ST Micro variants
PL18X_MMCI_ST_SDIOITMASK = (1 shl 22);  
PL18X_MMCI_ST_CEATAENDMASK = (1 shl 23);  
PL18X_MMCI_ST_BUSYEND = (1 shl 24);  


PL18X SD card select register PL18X_MMCI_SELECT*
PL18X_MMCI_SELECT = $044;  


PL18X FIFO counter register PL18X_MMCI_FIFOCNT*
PL18X_MMCI_FIFOCNT = $048;  


PL18X data FIFO register PL18X_MMCI_FIFO*
PL18X_MMCI_FIFO = $080; To $0bc


PL18X peripheral identification register PL18X_MMCI_PERIPHID*
PL18X_MMCI_PERIPHID = $FE0;  


PL18X PrimeCell identification register PL18X_MMCI_PCELLID*
PL18X_MMCI_PCELLID = $FF0;  
 
PL18X_MMCI_IRQENABLE = (PL18X_MMCI_CMDCRCFAILMASK or PL18X_MMCI_DATACRCFAILMASK or PL18X_MMCI_CMDTIMEOUTMASK or PL18X_MMCI_DATATIMEOUTMASK or PL18X_MMCI_TXUNDERRUNMASK or PL18X_MMCI_RXOVERRUNMASK or PL18X_MMCI_CMDRESPENDMASK or PL18X_MMCI_CMDSENTMASK or PL18X_MMCI_STARTBITERRMASK);  
These interrupts are directed to IRQ1 when two IRQ lines are available
PL18X_MMCI_IRQ1MASK = (PL18X_MMCI_RXFIFOHALFFULLMASK or PL18X_MMCI_RXDATAAVLBLMASK or PL18X_MMCI_TXFIFOHALFEMPTYMASK);  


Type definitions


PL18X version Id

PPL18XVersionID = ^TPL18XVersionID;

TPL18XVersionID = record

PeripheralID:LongWord;  
PeripheralMask:LongWord;  
VersionData:PPL18XVersionData;  

PL18X version data

PPL18XVersionData = ^TPL18XVersionData;

TPL18XVersionData = record

Name:String; Name of the device
ClockRegister:LongWord; Default value for MCICLOCK register
ClockEnable:LongWord; Enable value for MMCICLOCK register
Clock8BitEnable:LongWord; Enable value for 8 bit bus
ClockNegativeEdgeEnable:LongWord; Enable value for inverted data/cmd output
DataLengthBits:LongWord; Number of bits in the MMCIDATALENGTH register
FIFOSize:LongWord; Number of bytes that can be written when MMCI_TXFIFOEMPTY is asserted (likewise for RX)
FIFOHalfSize:LongWord; Number of bytes that can be written when MCI_TXFIFOHALFEMPTY is asserted (likewise for RX)
DataCommandEnable:LongWord; Enable value for data commands
DataControlMaskDDR:LongWord; DDR mode mask in MMCIDATACTRL register
DataControlMaskSDIO:LongWord; SDIO enable mask in MMCIDATACTRL register
STSDIO:LongBool; Enable ST specific SDIO logic
STClockDivider:LongBool; True if using a ST-specific clock divider algorithm
BlockSizeDataControl16:LongBool; True if Block size is at b16..b30 position in MMCIDATACTRL register
BlockSizeDataControl4:LongBool; True if Block size is at b4..b16 position in MMCIDATACTRL register
PowerPowerUp:LongWord; Power up value for MMCIPOWER register
ClockMaximum:LongWord; Maximum clk frequency supported by the controller
SignalDirection:LongBool; Input/out direction of bus signals can be indicated
PowerClockGate:LongBool; MMCIPOWER register must be used to gate the clock
BusyDetect:LongBool; True if busy detection on dat0 is supported
PowerNoPower:LongBool; Bits in MMCIPOWER don't control external power supply
ExplicitMClockControl:LongBool; Enable explicit mclk control in driver
QualcommFIFO:LongBool; Enable Qualcomm specific FIFO PIO read logic
QualcommDMA:LongBool; Enable Qualcomm specific DMA glue for DMA transfers
ReversedIRQ:LongBool; Handle data irq before cmd irq

PL18X MMCI registers

PPL18XMMCIRegisters = ^TPL18XMMCIRegisters;

TPL18XMMCIRegisters = record

Note: Layout of the PL18X registers (See: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.ddi0172a/i1006458.html)
Power:LongWord; Power control register
Clock:LongWord; Clock control register
Argument:LongWord; Argument register
Command:LongWord; Command register
RespCmd:LongWord; Response command register
Response0:LongWord; Response register
Response1:LongWord; Response register
Response2:LongWord; Response register
Response3:LongWord; Response register
DataTimer:LongWord; Data timer
DataLength:LongWord; Data length register
DataCtrl:LongWord; Data control register
DataCnt:LongWord; Data counter
Status:LongWord; Status register
Clear:LongWord; Clear register
Mask0:LongWord; Interrupt 0 mask register
Mask1:LongWord; Interrupt 1 mask register
Select:LongWord; Secure digital memory card select register
FifoCnt:LongWord; FIFO counter
Reserved:array[$4C..$7C] of Byte; Reserved
FIFO:LongWord; Data FIFO register (0x80 to 0xBC)

PL18X SDHCI get RXFIFO count

TPL18XSDHCIGetRXFIFOCount = function(SDHCI:PPL18XSDHCIHost; Status,Remain:LongWord):LongWord;

PL18X SDHCI host

PPL18XSDHCIHost = ^TPL18XSDHCIHost;

TPL18XSDHCIHost = record

SDHCI Properties
SDHCI:TSDHCIHost;  
PL18X Properties
IRQ0:LongWord; First host IRQ line
IRQ1:LongWord; Second host IRQ line
EnableFIQ:LongBool; Use FIQ instead of IRQ
SingleIRQ:LongBool; The host only has a single IRQ line instead of the standard 2 lines
Registers:PPL18XMMCIRegisters; Host registers
Version:PPL18XVersionData; Host version data
ClockRegister:LongWord; Current clock register value
PowerRegister:LongWord; Current power register value
DataCtrlRegister:LongWord; Current data control register value
BusyStatus:LongWord; Current Busy Status for ST Micro variants
GetRXFIFOCount:TPL18XSDHCIGetRXFIFOCount; Model specific GetRXFIFOCount function


Public variables


PL18X specific variables

PL18X_MMCI_FIQ_ENABLED:LongBool; The SDHCI uses Fast Interrupt Requests (FIQ) instead of IRQ
PL18X_MMCI_MIN_FREQ:LongWord = 400000; Minimum clock frequency for SDHCI (Default minimum of 400KHz)
PL18X_MMCI_MAX_FREQ:LongWord = 400000; Maximum clock frequency for SDHCI (Default maximum of 400KHz)


Function declarations


Initialization functions 

procedure PL18XInit;
Description: Initialize the PL18X unit and version table
Note Called only during system startup


PL18X functions 

function PL180SDHCICreate(Address:PtrUInt; const Name:String; IRQ0,IRQ1,ClockMinimum,ClockMaximum:LongWord; CardDetect:TMMCDeviceGetCardDetect = nil; WriteProtect:TMMCDeviceGetWriteProtect = nil):PSDHCIHost;
Description: Create and register a new PL180 SDHCI device which can be accessed using the SDHCI API
Address The address of the PL180 registers
Name The text description of this device which will show in the device list (Optional)
IRQ0 The interrupt 0 number for the PL180
IRQ1 The interrupt 1 number for the PL180
ClockMinimum The minimum frequency for the Pl180 clock
ClockMaximum The maximum frequency for the Pl180 clock
Return Pointer to the new SDHCI device or nil if the SDHCI device could not be created 


function PL181SDHCICreate(Address:PtrUInt; const Name:String; IRQ0,IRQ1,ClockMinimum,ClockMaximum:LongWord; CardDetect:TMMCDeviceGetCardDetect = nil; WriteProtect:TMMCDeviceGetWriteProtect = nil):PSDHCIHost;
Description: Create and register a new PL181 SDHCI device which can be accessed using the SDHCI API
Address The address of the PL181 registers
Name The text description of this device which will show in the device list (Optional)
IRQ0 The interrupt 0 number for the PL181
IRQ1 The interrupt 1 number for the PL181
ClockMinimum The minimum frequency for the Pl181 clock
ClockMaximum The maximum frequency for the Pl181 clock
Return Pointer to the new SDHCI device or nil if the SDHCI device could not be created 


function PL18XSDHCIDestroy(SDHCI:PSDHCIHost):LongWord;
Description: Stop, deregister and destroy a PL18X SDHCI device created by this driver
SDHCI The SDHCI device to destroy
Return ERROR_SUCCESS if completed or another error code on failure


PL18X MMC functions 

function PL18XMMCDeviceGetCardDetect(MMC:PMMCDevice):LongWord;
Description: Implementation of MMCDeviceGetCardDetect API for PL18X SDHCI
Note Not intended to be called directly by applications, use MMCDeviceGetCardDetect instead. 


function PL18XMMCDeviceGetWriteProtect(MMC:PMMCDevice):LongWord;
Description: Implementation of MMCDeviceGetWriteProtect API for PL18X SDHCI
Note Not intended to be called directly by applications, use MMCDeviceGetWriteProtect instead. 


function PL18XMMCDeviceSendCommand(MMC:PMMCDevice; Command:PMMCCommand):LongWord;
Description: Implementation of MMCDeviceSendCommand API for PL18X SDHCI
Note Not intended to be called directly by applications, use MMCDeviceSendCommand instead. 


function PL18XMMCDeviceSetIOS(MMC:PMMCDevice):LongWord;
Description: Implementation of MMCDeviceSetIOS API for PL18X SDHCI
Note Not intended to be called directly by applications, use MMCDeviceSetIOS instead.


PL18X SDHCI functions 

function PL18XSDHCIHostStart(SDHCI:PSDHCIHost):LongWord;
Description: Implementation of SDHCIHostStart API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostStart instead. 


function PL18XSDHCIHostStop(SDHCI:PSDHCIHost):LongWord;
Description: Implementation of SDHCIHostStop API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostStop instead. 


function PL18XSDHCIHostReadByte(SDHCI:PSDHCIHost; Reg:LongWord):Byte;
Description: Implementation of SDHCIHostReadByte API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostReadByte instead. 


function PL18XSDHCIHostReadWord(SDHCI:PSDHCIHost; Reg:LongWord):Word;
Description: Implementation of SDHCIHostReadWord API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostReadWord instead. 


function PL18XSDHCIHostReadLong(SDHCI:PSDHCIHost; Reg:LongWord):LongWord;
Description: Implementation of SDHCIHostReadLong API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostReadLong instead. 


procedure PL18XSDHCIHostWriteByte(SDHCI:PSDHCIHost; Reg:LongWord; Value:Byte);
Description: Implementation of SDHCIHostWriteByte API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostWriteByte instead. 


procedure PL18XSDHCIHostWriteWord(SDHCI:PSDHCIHost; Reg:LongWord; Value:Word);
Description: Implementation of SDHCIHostWriteWord API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostWriteWord instead. 


procedure PL18XSDHCIHostWriteLong(SDHCI:PSDHCIHost; Reg:LongWord; Value:LongWord);
Description: Implementation of SDHCIHostWriteLong API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCIHostWriteLong instead. 


function PL18XSDHCIHostSetPower(SDHCI:PSDHCIHost; Power:Word):LongWord;
Description: Implementation of SDHCISetPower API for PL18X SDHCI
Note Not intended to be called directly by applications, use SDHCISetPower instead. 


procedure PL18XSDHCIInterruptHandler(SDHCI:PPL18XSDHCIHost);
Description: Interrupt handler for the PL18X SDHCI
Note Not intended to be called directly by applications 


procedure PL18XSDHCIDataInterrupt(SDHCI:PPL18XSDHCIHost; Status:LongWord);
Description: Data interrupt handler for the PL18X SDHCI
Note Not intended to be called directly by applications

Caller must hold the host lock 


procedure PL18XSDHCICommandInterrupt(SDHCI:PPL18XSDHCIHost; Status:LongWord);
Description: Command interrupt handler for the PL18X SDHCI
Note Not intended to be called directly by applications

Caller must hold the host lock 


procedure PL18XSDHCIStopData(SDHCI:PPL18XSDHCIHost);
Description: Data stop handler for the PL18X SDHCI
Note Not intended to be called directly by applications

Caller must hold the host lock 


procedure PL18XSDHCIPIOInterruptHandler(SDHCI:PPL18XSDHCIHost);
Description: PIO Interrupt handler for the PL18X SDHCI
Note Not intended to be called directly by applications 


function PL18XSHDCIReadPIO(SDHCI:PPL18XSDHCIHost ;Buffer:Pointer; Remain:LongWord):LongWord;
Description: PIO read interrupt handler for the PL18X SDHCI
Note Not intended to be called directly by applications

Caller must hold the host lock 


function PL18XSDHCIWritePIO(SDHCI:PPL18XSDHCIHost; Buffer:Pointer; Remain,Status:LongWord):LongWord;
Description: PIO read interrupt handler for the PL18X SDHCI
Note Not intended to be called directly by applications

Caller must hold the host lock


PL18X helper functions 

function PL18XGetPeripheralID(SDHCI:PPL18XSDHCIHost):LongWord;
Description: Return the Peripheral Id for a PL18X SDHCI device
Note None documented 


function PL18XGetVersionData(SDHCI:PPL18XSDHCIHost):PPL18XVersionData;
Description: Return the version data for a PL18X SDHCI device based on the Peripheral Id
Note None documented 


function PL18XGetRXFIFOCount(SDHCI:PPL18XSDHCIHost; Status,Remain:LongWord):LongWord;
Description: Determine the receive FIFO count available
Note None documented 


function PL18XQualcommGetRXFIFOCount(SDHCI:PPL18XSDHCIHost; Status,Remain:LongWord):LongWord;
Description: Determine the receive FIFO count available
Note None documented 


procedure PL18XRegisterDelay(SDHCI:PPL18XSDHCIHost);
Description: Delay for the required amount of time after a register write
Note None documented 


procedure PL18XSetClockRegister(SDHCI:PPL18XSDHCIHost; MMC:PMMCDevice; Desired:LongWord);
Description: Setup the current clock rate in the clock register
Note Caller must hold the host lock 


procedure PL18XSetPowerRegister(SDHCI:PPL18XSDHCIHost; Value:LongWord);
Description: Setup the current power state in the power register
Note Caller must hold the host lock 


procedure PL18XSetInterruptMask1(SDHCI:PPL18XSDHCIHost; Mask:LongWord);
Description: Setup the interrupt mask to use either Mask0 or Mask1 depending on configuration
Note Caller must hold the host lock 


procedure PL18XWriteClockRegister(SDHCI:PPL18XSDHCIHost; Clock:LongWord);
Description: Write to the clock register
Note Caller must hold the host lock 


procedure PL18XWritePowerRegister(SDHCI:PPL18XSDHCIHost; Power:LongWord);
Description: Write to the power register
Note Caller must hold the host lock 


procedure PL18XWriteDataCtrlRegister(SDHCI:PPL18XSDHCIHost; DataCtrl:LongWord);
Description: Write to the data control register
Note Caller must hold the host lock


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