ata/ide_isa/ide_isa.c

46 // info about one channel
61 /*! publish node of an ata channel */
106 	channel_info *channel = cookie;
107 	channel->ataChannel = ataChannel;
115 	channel_info *channel = channel_cookie;
116 	uint16 ioaddr = channel->command_block_base;
119 	if (channel->lost)
126 			channel->isa->write_io_8(ioaddr + 1 + i, tf->raw.r[i + 7]);
131 			channel->isa->write_io_8(ioaddr + 1 + i, tf->raw.r[i]);
143 	channel_info *channel = channel_cookie;
144 	uint16 ioaddr = channel->command_block_base;
147 	if (channel->lost)
152 			tf->raw.r[i] = channel->isa->read_io_8(ioaddr + 1 + i);
164 	channel_info *channel = channel_cookie;
165 	uint16 altstatusaddr = channel->control_block_base;
167 	if (channel->lost)
170 	return channel->isa->read_io_8(altstatusaddr);
177 	channel_info *channel = channel_cookie;
178 	uint16 device_control_addr = channel->control_block_base;
182 	if (channel->lost)
185 	channel->isa->write_io_8(device_control_addr, val);
194 	channel_info *channel = channel_cookie;
195 	uint16 ioaddr = channel->command_block_base;
197 	if (channel->lost)
206 			channel->isa->write_io_16(ioaddr, *(data++));
211 			channel->isa->write_io_32(ioaddr, *(cur_data++));
221 	channel_info *channel = channel_cookie;
222 	uint16 ioaddr = channel->command_block_base;
224 	if (channel->lost)
231 			*(data++) = channel->isa->read_io_16(ioaddr);
236 			*(cur_data++) = channel->isa->read_io_32(ioaddr);
246 	channel_info *channel = (channel_info *)arg;
251 	if (channel->lost)
255 	status = channel->isa->read_io_8(channel->command_block_base + 7);
257 	return sATA->interrupt_handler(channel->ataChannel, status);
309 	channel_info *channel;
316 	TRACE("ISA-IDE: channel init\n");
328 	channel = (channel_info *)malloc(sizeof(channel_info));
329 	if (channel == NULL)
332 	TRACE("ISA-IDE: channel init, resources %#x %#x %d\n",
335 	channel->isa = isa;
336 	channel->node = node;
337 	channel->lost = false;
338 	channel->command_block_base = command_block_base;
339 	channel->control_block_base = control_block_base;
340 	channel->intnum = irq;
341 	channel->ataChannel = NULL;
343 	res = install_io_interrupt_handler(channel->intnum,
344 		inthand, channel, 0);
351 	// enable interrupts so the channel is ready to run
352 	write_device_control(channel, ATA_DEVICE_CONTROL_BIT3);
354 	*_cookie = channel;
358 	free(channel);
366 	channel_info *channel = channel_cookie;
368 	TRACE("ISA-IDE: channel uninit\n");
371 	write_device_control(channel, ATA_DEVICE_CONTROL_BIT3 | ATA_DEVICE_CONTROL_DISABLE_INTS);
378 	remove_io_interrupt_handler(channel->intnum, inthand, channel);
380 	free(channel);
394 		"primary IDE channel");
396 		"secondary IDE channel");
408 	channel_info *channel = cookie;
412 	atomic_or((int32*)&channel->lost, 1);