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comparison packages/redboot/current/src/fs/ide.c @ 1811:a53cbddaeb77

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* cdl/redboot.cdl: added CYGSEM_REDBOOT_DISK_IDE_VMWARE option. * src/fs/ide.c : skip reset IDE commands if running under VMware.
author asl
date Wed, 13 Oct 2004 21:22:53 +0000
parents 5eec99b3cbea
children 74dbf4c3f2e1
comparison
equal deleted inserted replaced
1810:13b35973042a 1811:a53cbddaeb77
97 static int 97 static int
98 ide_reset(int ctlr) 98 ide_reset(int ctlr)
99 { 99 {
100 cyg_uint8 status; 100 cyg_uint8 status;
101 int delay; 101 int delay;
102 102 //
103 // VMware note:
104 // VMware virtual IDE device handler obviously expects that
105 // the reset and setup functions were already done
106 // by it's bios and complais if one uses reset here...
107 //
108 #ifndef CYGSEM_REDBOOT_DISK_IDE_VMWARE
103 HAL_IDE_WRITE_CONTROL(ctlr, 6); // polled mode, reset asserted 109 HAL_IDE_WRITE_CONTROL(ctlr, 6); // polled mode, reset asserted
104 CYGACC_CALL_IF_DELAY_US(5000); 110 CYGACC_CALL_IF_DELAY_US(5000);
105 HAL_IDE_WRITE_CONTROL(ctlr, 2); // polled mode, reset cleared 111 HAL_IDE_WRITE_CONTROL(ctlr, 2); // polled mode, reset cleared
106 CYGACC_CALL_IF_DELAY_US((cyg_uint32)50000); 112 CYGACC_CALL_IF_DELAY_US((cyg_uint32)50000);
113 #endif
107 114
108 // wait 30 seconds max for not busy and drive ready 115 // wait 30 seconds max for not busy and drive ready
109 for (delay = 0; delay < 300; ++delay) { 116 for (delay = 0; delay < 300; ++delay) {
110 CYGACC_CALL_IF_DELAY_US((cyg_uint32)100000); 117 CYGACC_CALL_IF_DELAY_US((cyg_uint32)100000);
111 HAL_IDE_READ_UINT8(ctlr, IDE_REG_STATUS, status); 118 HAL_IDE_READ_UINT8(ctlr, IDE_REG_STATUS, status);
130 CYGACC_CALL_IF_DELAY_US((cyg_uint32)50000); 137 CYGACC_CALL_IF_DELAY_US((cyg_uint32)50000);
131 HAL_IDE_WRITE_UINT8(ctlr, IDE_REG_DEVICE, sel); 138 HAL_IDE_WRITE_UINT8(ctlr, IDE_REG_DEVICE, sel);
132 CYGACC_CALL_IF_DELAY_US((cyg_uint32)50000); 139 CYGACC_CALL_IF_DELAY_US((cyg_uint32)50000);
133 HAL_IDE_READ_UINT8(ctlr, IDE_REG_DEVICE, val); 140 HAL_IDE_READ_UINT8(ctlr, IDE_REG_DEVICE, val);
134 if (val == sel) { 141 if (val == sel) {
142 #ifndef CYGSEM_REDBOOT_DISK_IDE_VMWARE
135 if (i) 143 if (i)
136 HAL_IDE_WRITE_UINT8(ctlr, IDE_REG_DEVICE, 0); 144 HAL_IDE_WRITE_UINT8(ctlr, IDE_REG_DEVICE, 0);
145 #endif
137 return 1; 146 return 1;
138 } 147 }
139 } 148 }
140 return 0; 149 return 0;
141 } 150 }