include/linux/cb710.h

1 /* SPDX-License-Identifier: GPL-2.0-only */
5  *  Copyright by Michał Mirosław, 2008-2009
21 /* per-virtual-slot structure */
28 /* per-device structure */
50 /* slot port accessors - so the logic is more clear in the code */
53 	unsigned port, u##t value)					\
55 	iowrite##t(value, slot->iobase + port);				\
59 	unsigned port)							\
61 	return ioread##t(slot->iobase + port);				\
65 	unsigned port, u##t set, u##t clear)				\
68 		(ioread##t(slot->iobase + port) & ~clear)|set,		\
69 		slot->iobase + port);					\
91 	return dev_get_drvdata(slot->pdev.dev.parent);  in cb710_slot_to_chip()
96 	return &slot->pdev.dev;  in cb710_slot_dev()
101 	return &chip->pdev->dev;  in cb710_chip_dev()
128  *  Copyright by Michał Mirosław, 2008-2009
137  * 32-bit PIO mapping sg iterator
139  * Hides scatterlist access issues - fragment boundaries, alignment, page
140  * mapping - for drivers using 32-bit-word-at-a-time-PIO (ie. PCI devices
143  * Best-case reading (transfer from device):
148  * Best-case writing (transfer to device):
158  * cb710_sg_dwiter_write_from_io - transfer data to mapped buffer from 32-bit IO port
160  * @port: PIO port - IO or MMIO address
161  * @count: number of 32-bit words to transfer
164  *   Reads @count 32-bit words from register @port and stores it in
170  *   IRQ disabled if the SG_MITER_ATOMIC is set.  Don't care otherwise.
173 	void __iomem *port, size_t count)  in cb710_sg_dwiter_write_from_io()  argument
175 	while (count-- > 0)  in cb710_sg_dwiter_write_from_io()
176 		cb710_sg_dwiter_write_next_block(miter, ioread32(port));  in cb710_sg_dwiter_write_from_io()
180  * cb710_sg_dwiter_read_to_io - transfer data to 32-bit IO port from mapped buffer
182  * @port: PIO port - IO or MMIO address
183  * @count: number of 32-bit words to transfer
186  *   Writes @count 32-bit words to register @port from buffer iterated
192  *   IRQ disabled if the SG_MITER_ATOMIC is set.  Don't care otherwise.
195 	void __iomem *port, size_t count)  in cb710_sg_dwiter_read_to_io()  argument
197 	while (count-- > 0)  in cb710_sg_dwiter_read_to_io()
198 		iowrite32(cb710_sg_dwiter_read_next_block(miter), port);  in cb710_sg_dwiter_read_to_io()