ide/ide_isa/ide_isa.c

48 // info about one channel
63 /*! publish node of an ide channel */
109 	channel_info *channel = cookie;
110 	channel->ide_channel = ideChannel;
118 	channel_info *channel = channel_cookie;
119 	uint16 ioaddr = channel->command_block_base;
122 	if (channel->lost)
129 			channel->isa->write_io_8(ioaddr + 1 + i, tf->raw.r[i + 7]);
134 			channel->isa->write_io_8(ioaddr + 1 + i, tf->raw.r[i]);
146 	channel_info *channel = channel_cookie;
147 	uint16 ioaddr = channel->command_block_base;
150 	if (channel->lost)
155 			tf->raw.r[i] = channel->isa->read_io_8(ioaddr + 1 + i);
167 	channel_info *channel = channel_cookie;
168 	uint16 altstatusaddr = channel->control_block_base;
170 	if (channel->lost)
173 	return channel->isa->read_io_8(altstatusaddr);
180 	channel_info *channel = channel_cookie;
181 	uint16 device_control_addr = channel->control_block_base;
185 	if (channel->lost)
188 	channel->isa->write_io_8(device_control_addr, val);
197 	channel_info *channel = channel_cookie;
198 	uint16 ioaddr = channel->command_block_base;
200 	if (channel->lost)
209 			channel->isa->write_io_16(ioaddr, *(data++));
214 			channel->isa->write_io_32(ioaddr, *(cur_data++));
224 	channel_info *channel = channel_cookie;
225 	uint16 ioaddr = channel->command_block_base;
227 	if (channel->lost)
234 			*(data++) = channel->isa->read_io_16(ioaddr);
239 			*(cur_data++) = channel->isa->read_io_32(ioaddr);
249 	channel_info *channel = (channel_info *)arg;
254 	if (channel->lost)
258 	status = channel->isa->read_io_8(channel->command_block_base + 7);
260 	return ide->irq_handler(channel->ide_channel, status);
312 	channel_info *channel;
319 	TRACE("ISA-IDE: channel init\n");
331 	channel = (channel_info *)malloc(sizeof(channel_info));
332 	if (channel == NULL)
335 	TRACE("ISA-IDE: channel init, resources %#x %#x %d\n",
338 	channel->isa = isa;
339 	channel->node = node;
340 	channel->lost = false;
341 	channel->command_block_base = command_block_base;
342 	channel->control_block_base = control_block_base;
343 	channel->intnum = irq;
344 	channel->ide_channel = NULL;
346 	res = install_io_interrupt_handler(channel->intnum,
347 		inthand, channel, 0);
354 	// enable interrupts so the channel is ready to run
355 	write_device_control(channel, ide_devctrl_bit3);
357 	*_cookie = channel;
361 	free(channel);
369 	channel_info *channel = channel_cookie;
371 	TRACE("ISA-IDE: channel uninit\n");
374 	write_device_control(channel, ide_devctrl_bit3 | ide_devctrl_nien);
381 	remove_io_interrupt_handler(channel->intnum, inthand, channel);
383 	free(channel);
397 		"primary IDE channel");
399 		"secondary IDE channel");
411 	channel_info *channel = cookie;
415 	atomic_or(&channel->lost, 1);