| Line 213... |
Line 213... |
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/* power-on and hardware reset */
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/* power-on and hardware reset */
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void ata_devices_hw_reset(ata_devices *devices, int reset_signal)
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void ata_devices_hw_reset(ata_devices *devices, int reset_signal)
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{
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{
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/* display debug information */
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/* display debug information */
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TRACE("ata_devices_hw_reset.\n");
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TRACE(reset_signal ? "Starting reset\n" : "Finishing reset\n");
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|
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/* find device 0 */
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/* find device 0 */
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if((devices->device[0].conf.stream) && (devices->device[1].conf.stream)) {
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if((devices->device[0].conf.stream) && (devices->device[1].conf.stream)) {
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/* this one is simple, device0 is device0 */
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/* this one is simple, device0 is device0 */
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| Line 255... |
Line 255... |
D E V I C E S _ D O _ C O N T R O L _ R E G I S T E R
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D E V I C E S _ D O _ C O N T R O L _ R E G I S T E R
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|
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Handles - software reset
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Handles - software reset
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- Interrupt enable bit
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- Interrupt enable bit
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*/
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*/
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void ata_device_do_control_register(ata_device *device)
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static void ata_device_do_control_register(ata_device *device)
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{
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{
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/* TODO respond to new values of nIEN */
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/* TODO respond to new values of nIEN */
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/* if device not selected, respond to new values of nIEN & SRST */
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/* if device not selected, respond to new values of nIEN & SRST */
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|
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/* check if SRST bit is set */
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/* check if SRST bit is set */
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| Line 311... |
Line 311... |
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/*
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/*
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D E V I C E S _ D O _ C O M M A N D _ R E G I S T E R
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D E V I C E S _ D O _ C O M M A N D _ R E G I S T E R
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*/
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*/
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void ata_device_do_command_register(ata_device *device)
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static void ata_device_do_command_register(ata_device *device)
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{
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{
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/* check BSY & DRQ */
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/* check BSY & DRQ */
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if ( (device->regs.status & ATA_SR_BSY) || (device->regs.status & ATA_SR_DRQ) )
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if ( (device->regs.status & ATA_SR_BSY) || (device->regs.status & ATA_SR_DRQ) )
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if (device->regs.command != DEVICE_RESET)
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if (device->regs.command != DEVICE_RESET)
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WARN("ata_device_write, writing a command while BSY or DRQ asserted.");
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WARN("ata_device_write, writing a command while BSY or DRQ asserted.\n");
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|
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/* check if device selected */
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/* check if device selected */
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if ( (device->regs.device_head & ATA_DHR_DEV) == device->internals.dev )
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if ( (device->regs.device_head & ATA_DHR_DEV) == device->internals.dev )
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ata_device_execute_cmd(device);
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ata_device_execute_cmd(device);
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else
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else
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