26 /* Intel MID Specific registers */
53 static int pnw_setup(struct mid8250 *mid, struct uart_port *p)  in pnw_setup()  argument
59 		mid->dma_index = 0;  in pnw_setup()
62 		mid->dma_index = 1;  in pnw_setup()
65 		mid->dma_index = 2;  in pnw_setup()
71 	mid->dma_dev = pci_get_slot(pdev->bus,  in pnw_setup()
76 static void pnw_exit(struct mid8250 *mid)  in pnw_exit()  argument
78 	pci_dev_put(mid->dma_dev);  in pnw_exit()
83 	struct mid8250 *mid = p->private_data;  in tng_handle_irq()  local
90 	chip = pci_get_drvdata(mid->dma_dev);  in tng_handle_irq()
93 	err = hsu_dma_get_status(chip, mid->dma_index * 2 + 1, &status);  in tng_handle_irq()
98 		ret |= hsu_dma_do_irq(chip, mid->dma_index * 2 + 1, status);  in tng_handle_irq()
101 	err = hsu_dma_get_status(chip, mid->dma_index * 2, &status);  in tng_handle_irq()
105 		ret |= hsu_dma_do_irq(chip, mid->dma_index * 2, status);  in tng_handle_irq()
112 static int tng_setup(struct mid8250 *mid, struct uart_port *p)  in tng_setup()  argument
125 	mid->dma_index = index;  in tng_setup()
126 	mid->dma_dev = pci_get_slot(pdev->bus, PCI_DEVFN(5, 0));  in tng_setup()
132 static void tng_exit(struct mid8250 *mid)  in tng_exit()  argument
134 	pci_dev_put(mid->dma_dev);  in tng_exit()
139 	struct mid8250 *mid = p->private_data;  in dnv_handle_irq()  local
147 		err = hsu_dma_get_status(&mid->dma_chip, 1, &status);  in dnv_handle_irq()
152 			ret |= hsu_dma_do_irq(&mid->dma_chip, 1, status);  in dnv_handle_irq()
155 		err = hsu_dma_get_status(&mid->dma_chip, 0, &status);  in dnv_handle_irq()
159 			ret |= hsu_dma_do_irq(&mid->dma_chip, 0, status);  in dnv_handle_irq()
168 static int dnv_setup(struct mid8250 *mid, struct uart_port *p)  in dnv_setup()  argument
170 	struct hsu_dma_chip *chip = &mid->dma_chip;  in dnv_setup()
172 	unsigned int bar = FL_GET_BASE(mid->board->flags);  in dnv_setup()
194 	mid->dma_dev = pdev;  in dnv_setup()
200 static void dnv_exit(struct mid8250 *mid)  in dnv_exit()  argument
202 	if (!mid->dma_dev)  in dnv_exit()
204 	hsu_dma_remove(&mid->dma_chip);  in dnv_exit()
214 	struct mid8250 *mid = p->private_data;  in mid8250_set_termios()  local
223 	if (mid->board->freq < fuart) {  in mid8250_set_termios()
225 		if (mid->board->freq > baud)  in mid8250_set_termios()
226 			ps = mid->board->freq / baud;	/* baud rate too high */  in mid8250_set_termios()
232 		fuart *= rounddown_pow_of_two(mid->board->freq / fuart);  in mid8250_set_termios()
235 	rational_best_approximation(fuart, mid->board->freq, w, w, &mul, &div);  in mid8250_set_termios()
256 static int mid8250_dma_setup(struct mid8250 *mid, struct uart_8250_port *port)  in mid8250_dma_setup()  argument
258 	struct uart_8250_dma *dma = &mid->dma;  in mid8250_dma_setup()
263 	if (!mid->dma_dev)  in mid8250_dma_setup()
274 	rx_param->chan_id = mid->dma_index * 2 + 1;  in mid8250_dma_setup()
275 	tx_param->chan_id = mid->dma_index * 2;  in mid8250_dma_setup()
280 	rx_param->dma_dev = &mid->dma_dev->dev;  in mid8250_dma_setup()
281 	tx_param->dma_dev = &mid->dma_dev->dev;  in mid8250_dma_setup()
294 	struct mid8250 *mid;  in mid8250_probe()  local
302 	mid = devm_kzalloc(&pdev->dev, sizeof(*mid), GFP_KERNEL);  in mid8250_probe()
303 	if (!mid)  in mid8250_probe()
306 	mid->board = (struct mid8250_board *)id->driver_data;  in mid8250_probe()
307 	bar = FL_GET_BASE(mid->board->flags);  in mid8250_probe()
313 	uart.port.private_data = mid;  in mid8250_probe()
316 	uart.port.uartclk = mid->board->base_baud * 16;  in mid8250_probe()
325 	if (mid->board->setup) {  in mid8250_probe()
326 		ret = mid->board->setup(mid, &uart.port);  in mid8250_probe()
331 	ret = mid8250_dma_setup(mid, &uart);  in mid8250_probe()
339 	mid->line = ret;  in mid8250_probe()
341 	pci_set_drvdata(pdev, mid);  in mid8250_probe()
345 	mid->board->exit(mid);  in mid8250_probe()
351 	struct mid8250 *mid = pci_get_drvdata(pdev);  in mid8250_remove()  local
353 	serial8250_unregister_port(mid->line);  in mid8250_remove()
355 	mid->board->exit(mid);  in mid8250_remove()
406 MODULE_DESCRIPTION("Intel MID UART driver");