generic/ata_adapter/ata_adapter.cpp

47 set_channel(ata_adapter_channel_info *channel, ata_channel ataChannel)
49 	channel->ataChannel = ataChannel;
54 ata_adapter_write_command_block_regs(ata_adapter_channel_info *channel,
57 	pci_device_module_info *pci = channel->pci;
58 	pci_device *device = channel->device;
61 	uint16 ioaddr = channel->command_block_base;
63 	if (channel->lost)
84 ata_adapter_read_command_block_regs(ata_adapter_channel_info *channel,
87 	pci_device_module_info *pci = channel->pci;
88 	pci_device *device = channel->device;
91 	uint16 ioaddr = channel->command_block_base;
93 	if (channel->lost)
108 ata_adapter_get_altstatus(ata_adapter_channel_info *channel)
110 	pci_device_module_info *pci = channel->pci;
111 	pci_device *device = channel->device;
112 	uint16 altstatusaddr = channel->control_block_base;
114 	if (channel->lost)
122 ata_adapter_write_device_control(ata_adapter_channel_info *channel, uint8 val)
124 	pci_device_module_info *pci = channel->pci;
125 	pci_device *device = channel->device;
126 	uint16 device_control_addr = channel->control_block_base;
130 	if (channel->lost)
140 ata_adapter_write_pio(ata_adapter_channel_info *channel, uint16 *data,
143 	pci_device_module_info *pci = channel->pci;
144 	pci_device *device = channel->device;
146 	uint16 ioaddr = channel->command_block_base;
148 	if (channel->lost)
168 ata_adapter_read_pio(ata_adapter_channel_info *channel, uint16 *data,
171 	pci_device_module_info *pci = channel->pci;
172 	pci_device *device = channel->device;
174 	uint16 ioaddr = channel->command_block_base;
176 	if (channel->lost)
198 	ata_adapter_channel_info *channel = (ata_adapter_channel_info *)arg;
199 	pci_device_module_info *pci = channel->pci;
200 	pci_device *device = channel->device;
207 	statusBM = pci->read_io_8(device, channel->bus_master_base
214 		statusATA = pci->read_io_8(device, channel->command_block_base + 7);
219 		pci->write_io_8(device, channel->bus_master_base + ATA_BM_STATUS_REG,
222 		if (!channel->dmaing) {
230 		return sATA->interrupt_handler(channel->ataChannel, statusATA);
239 ata_adapter_prepare_dma(ata_adapter_channel_info *channel,
242 	pci_device_module_info *pci = channel->pci;
243 	pci_device *device = channel->device;
246 	prd_entry *prd = channel->prdt;
252 	for (i = sgListCount - 1, prd = channel->prdt; i >= 0; --i, ++prd, ++sgList) {
267 	pci->write_io_32(device, channel->bus_master_base + ATA_BM_PRDT_ADDRESS,
268 		(pci->read_io_32(device, channel->bus_master_base + ATA_BM_PRDT_ADDRESS) & 3)
270 			channel->prdt_phys)) & ~3));
273 	status = pci->read_io_8(device, channel->bus_master_base
276 		channel->bus_master_base + ATA_BM_STATUS_REG, status);
279 	command = pci->read_io_8(device, channel->bus_master_base
286 	pci->write_io_8(device, channel->bus_master_base + ATA_BM_COMMAND_REG,
294 ata_adapter_start_dma(ata_adapter_channel_info *channel)
296 	pci_device_module_info *pci = channel->pci;
297 	pci_device *device = channel->device;
300 	command = pci->read_io_8(device, channel->bus_master_base
305 	channel->dmaing = true;
307 	pci->write_io_8(device, channel->bus_master_base + ATA_BM_COMMAND_REG,
315 ata_adapter_finish_dma(ata_adapter_channel_info *channel)
317 	pci_device_module_info *pci = channel->pci;
318 	pci_device *device = channel->device;
323 	status = pci->read_io_8(device, channel->bus_master_base
328 	command = pci->read_io_8(device, channel->bus_master_base
330 	pci->write_io_8(device, channel->bus_master_base + ATA_BM_COMMAND_REG,
332 	channel->dmaing = false;
335 	pci->write_io_8(device, channel->bus_master_base + ATA_BM_STATUS_REG,
354 	ata_adapter_channel_info *channel;
362 	TRACE("PCI-ATA: init channel...\n");
391 	channel = (ata_adapter_channel_info *)malloc(total_data_size);
392 	if (channel == NULL) {
397 	TRACE("PCI-ATA: channel index %d\n", channel_index);
399 	channel->node = node;
400 	channel->pci = controller->pci;
401 	channel->device = controller->device;
402 	channel->lost = false;
403 	channel->command_block_base = command_block_base;
404 	channel->control_block_base = control_block_base;
405 	channel->bus_master_base = controller->bus_master_base + (channel_index * 8);
406 	channel->intnum = intnum;
407 	channel->dmaing = false;
408 	channel->inthand = inthand;
410 	TRACE("PCI-ATA: bus master base %#x\n", channel->bus_master_base);
416 	channel->prd_area = create_area("prd", (void **)&channel->prdt, B_ANY_KERNEL_ADDRESS,
418 	if (channel->prd_area < B_OK) {
419 		res = channel->prd_area;
423 	get_memory_map(channel->prdt, prdt_size, pe, 1);
424 	channel->prdt_phys = pe[0].address;
426 	SHOW_FLOW(3, "virt=%p, phys=%x", channel->prdt, (int)channel->prdt_phys);
428 	res = install_io_interrupt_handler(channel->intnum,
429 		inthand, channel, 0);
432 		SHOW_ERROR(0, "couldn't install irq handler @%d", channel->intnum);
436 	TRACE("PCI-ATA: init channel done\n");
439 	ata_adapter_write_device_control(channel, ATA_DEVICE_CONTROL_BIT3 | ATA_DEVICE_CONTROL_DISABLE_INTS);
441 	*cookie = channel;
446 	delete_area(channel->prd_area);
449 	free(channel);
456 ata_adapter_uninit_channel(ata_adapter_channel_info *channel)
459 	ata_adapter_write_device_control(channel, ATA_DEVICE_CONTROL_BIT3 | ATA_DEVICE_CONTROL_DISABLE_INTS);
466 	remove_io_interrupt_handler(channel->intnum, channel->inthand, channel);
468 	delete_area(channel->prd_area);
469 	free(channel);
474 ata_adapter_channel_removed(ata_adapter_channel_info *channel)
478 	if (channel != NULL)
480 		atomic_or((int32*)&channel->lost, 1);
484 /** publish node of ata channel */
503 		// private data to identify channel
521 /** detect IDE channel */
537 	// if channel works in compatibility mode, addresses and interrupt are fixed
595 		// read status of primary(!) channel to detect simplex
601 			// we simply disable bus mastering of second channel to satisfy that;
610 				TRACE("PCI-ATA: Simplex controller - disabling DMA of secondary channel\n");