Add PCD setting for Timer, default is 10 times a second. You need the timer to detect a media change event. Also coded up DMA, but have not debugged it yet and it is not turned on.

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@10478 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
andrewfish
2010-05-11 00:06:47 +00:00
parent c16f9cc33d
commit 9f6b977f66
6 changed files with 119 additions and 55 deletions

View File

@@ -22,6 +22,7 @@
#define DMA4_CCR(_i) (0x48056080 + (0x60*(_i)))
#define DMA4_CICR(_i) (0x48056088 + (0x60*(_i)))
#define DMA4_CSR(_i) (0x4805608c + (0x60*(_i)))
#define DMA4_CSDP(_i) (0x48056090 + (0x60*(_i)))
#define DMA4_CEN(_i) (0x48056094 + (0x60*(_i)))
#define DMA4_CFN(_i) (0x48056098 + (0x60*(_i)))
@@ -106,5 +107,24 @@
#define DMA4_CCR_SEL_SRC_DEST_SYNC_SOURCE BIT24
#define DMA4_CSR_DROP BIT1
#define DMA4_CSR_HALF BIT2
#define DMA4_CSR_FRAME BIT3
#define DMA4_CSR_LAST BIT4
#define DMA4_CSR_BLOCK BIT5
#define DMA4_CSR_SYNC BIT6
#define DMA4_CSR_PKT BIT7
#define DMA4_CSR_TRANS_ERR BIT8
#define DMA4_CSR_SECURE_ERR BIT9
#define DMA4_CSR_SUPERVISOR_ERR BIT10
#define DMA4_CSR_MISALIGNED_ADRS_ERR BIT11
#define DMA4_CSR_DRAIN_END BIT12
#define DMA4_CSR_RESET 0x1FE
#define DMA4_CSR_ERR (DMA4_CSR_TRANS_ERR | DMA4_CSR_SECURE_ERR | DMA4_CSR_SUPERVISOR_ERR | DMA4_CSR_MISALIGNED_ADRS_ERR)
// same mapping as CSR except for SYNC. Enable all since we are polling
#define DMA4_CICR_ENABLE_ALL 0x1FBE
#endif