ata/silicon_image_3112/silicon_image_3112.c

21 #define CHANNEL_MODULE_NAME		"busses/ata/silicon_image_3112/channel/v1"
65 	struct channel_data *channel[4]; // XXX only for interrupt workaround
305 		controller->channel[i] = 0;
372 	// publish channel nodes
380 			// private data to identify channel
412 	channel_data *channel;
419 	channel = malloc(sizeof(channel_data));
420 	if (!channel)
441 	TRACE("channel name: %s\n", kControllerChannelData[channelIndex].name);
443 	TRACE("channel %p\n", channel);
456 	channel->prd_area = create_area("prd", (void **)&channel->prdt,
459 	if (channel->prd_area < B_OK) {
464 	get_memory_map(channel->prdt, prdtSize, &entry, 1);
465 	channel->prdt_phys = entry.address;
467 	channel->pci = controller->pci;
468 	channel->device = controller->device;
469 	channel->node = node;
470 	channel->ataChannel = NULL;
472 	channel->task_file = (volatile uint8 *)(controller->mmio_addr + kControllerChannelData[channelIndex].cmd + 1);
473 	channel->control_block = (volatile uint8 *)(controller->mmio_addr + kControllerChannelData[channelIndex].ctl);
474 	channel->command_block = (volatile uint8 *)(controller->mmio_addr + kControllerChannelData[channelIndex].cmd);
475 	channel->dev_ctrl = (volatile uint8 *)(controller->mmio_addr + kControllerChannelData[channelIndex].ctl);
476 	channel->bm_prdt_address = (volatile uint32 *)(controller->mmio_addr + kControllerChannelData[channelIndex].bmdma + ATA_BM_PRDT_ADDRESS);
477 	channel->bm_status_reg = (volatile uint8 *)(controller->mmio_addr + kControllerChannelData[channelIndex].bmdma + ATA_BM_STATUS_REG);
478 	channel->bm_command_reg = (volatile uint8 *)(controller->mmio_addr + kControllerChannelData[channelIndex].bmdma + ATA_BM_COMMAND_REG);
479 	channel->stat = (volatile uint32 *)(controller->mmio_addr + kControllerChannelData[channelIndex].stat);
481 	channel->lost = 0;
482 	channel->dma_active = 0;
484 	controller->channel[channelIndex] = channel;
487 	device_control_write(channel, ATA_DEVICE_CONTROL_BIT3
490 	*_channelCookie = channel;
496 	free(channel);
504 	channel_data *channel = channelCookie;
509 	device_control_write(channel, ATA_DEVICE_CONTROL_BIT3
512 	delete_area(channel->prd_area);
513 	free(channel);
522 	channel_data *channel = channelCookie;
523 	channel->lost = 1;
530 	channel_data *channel = channelCookie;
531 	channel->ataChannel = ataChannel;
538 	channel_data *channel = channelCookie;
543 	if (channel->lost)
549 			channel->task_file[i] = tf->raw.r[i + 7];
554 			channel->task_file[i] = tf->raw.r[i];
557 	*channel->dev_ctrl; // read altstatus to flush
566 	channel_data *channel = channelCookie;
571 	if (channel->lost)
576 			tf->raw.r[i] = channel->task_file[i];
588 	channel_data *channel = channelCookie;
592 	if (channel->lost)
595 	return *channel->dev_ctrl;
602 	channel_data *channel = channelCookie;
606 	if (channel->lost)
609 	*channel->dev_ctrl = val;
610 	*channel->dev_ctrl; // read altstatus to flush
619 	channel_data *channel = channelCookie;
620 	if (channel->lost)
628 		volatile uint16 * base = (volatile uint16 *)channel->command_block;
632 		volatile uint32 * base = (volatile uint32 *)channel->command_block;
638 	*channel->dev_ctrl; // read altstatus to flush
647 	channel_data *channel = channelCookie;
648 	if (channel->lost)
657 		volatile uint16 * base = (volatile uint16 *)channel->command_block;
661 		volatile uint32 * base = (volatile uint32 *)channel->command_block;
676 	channel_data *channel = channelCookie;
677 	pci_device_module_info *pci = channel->pci;
678 	pci_device *device = channel->device;
679 	prd_entry *prd = channel->prdt;
687 	for (i = sg_list_count - 1, prd = channel->prdt; i >= 0;
700 	temp = (*channel->bm_prdt_address) & 3;
702 		channel->prdt_phys)) & ~3;
703 	*channel->bm_prdt_address = temp;
705 	*channel->dev_ctrl; // read altstatus to flush
708 	status = *channel->bm_status_reg | ATA_BM_STATUS_INTERRUPT
710 	*channel->bm_status_reg = status;
712 	*channel->dev_ctrl; // read altstatus to flush
715 	command = *channel->bm_command_reg;
721 	*channel->bm_command_reg = command;
723 	*channel->dev_ctrl; // read altstatus to flush
734 	channel_data *channel = channelCookie;
739 	command = *channel->bm_command_reg | ATA_BM_COMMAND_START_STOP;
740 	channel->dma_active = true;
741 	*channel->bm_command_reg = command;
743 	*channel->dev_ctrl; // read altstatus to flush
754 	channel_data *channel = channelCookie;
760 	status = *channel->bm_status_reg;
762 	command = *channel->bm_command_reg;
763 	*channel->bm_command_reg = command & ~ATA_BM_COMMAND_START_STOP;
765 	channel->dma_active = false;
767 	*channel->bm_status_reg = status | ATA_BM_STATUS_ERROR;
768 	*channel->dev_ctrl; // read altstatus to flush
797 		channel_data *channel = controller->channel[i];
798 		if (!channel || channel->lost)
801 		if (!channel->dma_active) {
804 			*(channel->command_block + 7);
808 		statusBM = *channel->bm_status_reg;
810 			statusATA = *(channel->command_block + 7);
811 			*channel->bm_status_reg
813 			sATA->interrupt_handler(channel->ataChannel, statusATA);