25 /* Intel MID Specific registers */
52 static int pnw_setup(struct mid8250 *mid, struct uart_port *p)  in pnw_setup()  argument
58 		mid->dma_index = 0;  in pnw_setup()
61 		mid->dma_index = 1;  in pnw_setup()
64 		mid->dma_index = 2;  in pnw_setup()
70 	mid->dma_dev = pci_get_slot(pdev->bus,  in pnw_setup()
75 static void pnw_exit(struct mid8250 *mid)  in pnw_exit()  argument
77 	pci_dev_put(mid->dma_dev);  in pnw_exit()
82 	struct mid8250 *mid = p->private_data;  in tng_handle_irq()  local
89 	chip = pci_get_drvdata(mid->dma_dev);  in tng_handle_irq()
92 	err = hsu_dma_get_status(chip, mid->dma_index * 2 + 1, &status);  in tng_handle_irq()
97 		ret |= hsu_dma_do_irq(chip, mid->dma_index * 2 + 1, status);  in tng_handle_irq()
100 	err = hsu_dma_get_status(chip, mid->dma_index * 2, &status);  in tng_handle_irq()
104 		ret |= hsu_dma_do_irq(chip, mid->dma_index * 2, status);  in tng_handle_irq()
111 static int tng_setup(struct mid8250 *mid, struct uart_port *p)  in tng_setup()  argument
124 	mid->dma_index = index;  in tng_setup()
125 	mid->dma_dev = pci_get_slot(pdev->bus, PCI_DEVFN(5, 0));  in tng_setup()
131 static void tng_exit(struct mid8250 *mid)  in tng_exit()  argument
133 	pci_dev_put(mid->dma_dev);  in tng_exit()
138 	struct mid8250 *mid = p->private_data;  in dnv_handle_irq()  local
146 		err = hsu_dma_get_status(&mid->dma_chip, 1, &status);  in dnv_handle_irq()
151 			ret |= hsu_dma_do_irq(&mid->dma_chip, 1, status);  in dnv_handle_irq()
154 		err = hsu_dma_get_status(&mid->dma_chip, 0, &status);  in dnv_handle_irq()
158 			ret |= hsu_dma_do_irq(&mid->dma_chip, 0, status);  in dnv_handle_irq()
167 static int dnv_setup(struct mid8250 *mid, struct uart_port *p)  in dnv_setup()  argument
169 	struct hsu_dma_chip *chip = &mid->dma_chip;  in dnv_setup()
184 	chip->length = pci_resource_len(pdev, mid->board->bar);  in dnv_setup()
192 	mid->dma_dev = pdev;  in dnv_setup()
198 static void dnv_exit(struct mid8250 *mid)  in dnv_exit()  argument
200 	if (!mid->dma_dev)  in dnv_exit()
202 	hsu_dma_remove(&mid->dma_chip);  in dnv_exit()
211 	struct mid8250 *mid = p->private_data;  in mid8250_set_termios()  local
220 	if (mid->board->freq < fuart) {  in mid8250_set_termios()
222 		if (mid->board->freq > baud)  in mid8250_set_termios()
223 			ps = mid->board->freq / baud;	/* baud rate too high */  in mid8250_set_termios()
229 		fuart *= rounddown_pow_of_two(mid->board->freq / fuart);  in mid8250_set_termios()
232 	rational_best_approximation(fuart, mid->board->freq, w, w, &mul, &div);  in mid8250_set_termios()
253 static int mid8250_dma_setup(struct mid8250 *mid, struct uart_8250_port *port)  in mid8250_dma_setup()  argument
255 	struct uart_8250_dma *dma = &mid->dma;  in mid8250_dma_setup()
260 	if (!mid->dma_dev)  in mid8250_dma_setup()
271 	rx_param->chan_id = mid->dma_index * 2 + 1;  in mid8250_dma_setup()
272 	tx_param->chan_id = mid->dma_index * 2;  in mid8250_dma_setup()
277 	rx_param->dma_dev = &mid->dma_dev->dev;  in mid8250_dma_setup()
278 	tx_param->dma_dev = &mid->dma_dev->dev;  in mid8250_dma_setup()
291 	struct mid8250 *mid;  in mid8250_probe()  local
298 	mid = devm_kzalloc(&pdev->dev, sizeof(*mid), GFP_KERNEL);  in mid8250_probe()
299 	if (!mid)  in mid8250_probe()
302 	mid->board = (struct mid8250_board *)id->driver_data;  in mid8250_probe()
308 	uart.port.private_data = mid;  in mid8250_probe()
311 	uart.port.uartclk = mid->board->base_baud * 16;  in mid8250_probe()
315 	uart.port.mapbase = pci_resource_start(pdev, mid->board->bar);  in mid8250_probe()
316 	uart.port.membase = pcim_iomap(pdev, mid->board->bar, 0);  in mid8250_probe()
320 	ret = mid->board->setup(mid, &uart.port);  in mid8250_probe()
324 	ret = mid8250_dma_setup(mid, &uart);  in mid8250_probe()
332 	mid->line = ret;  in mid8250_probe()
334 	pci_set_drvdata(pdev, mid);  in mid8250_probe()
338 	mid->board->exit(mid);  in mid8250_probe()
344 	struct mid8250 *mid = pci_get_drvdata(pdev);  in mid8250_remove()  local
346 	serial8250_unregister_port(mid->line);  in mid8250_remove()
348 	mid->board->exit(mid);  in mid8250_remove()
397 MODULE_DESCRIPTION("Intel MID UART driver");