char/ipmi/ipmi_si_port_io.c

3 #include <linux/io.h>
6 static unsigned char port_inb(const struct si_sm_io *io, unsigned int offset)
8 	unsigned int addr = io->addr_data;
10 	return inb(addr + (offset * io->regspacing));
13 static void port_outb(const struct si_sm_io *io, unsigned int offset,
16 	unsigned int addr = io->addr_data;
18 	outb(b, addr + (offset * io->regspacing));
21 static unsigned char port_inw(const struct si_sm_io *io, unsigned int offset)
23 	unsigned int addr = io->addr_data;
25 	return (inw(addr + (offset * io->regspacing)) >> io->regshift) & 0xff;
28 static void port_outw(const struct si_sm_io *io, unsigned int offset,
31 	unsigned int addr = io->addr_data;
33 	outw(b << io->regshift, addr + (offset * io->regspacing));
36 static unsigned char port_inl(const struct si_sm_io *io, unsigned int offset)
38 	unsigned int addr = io->addr_data;
40 	return (inl(addr + (offset * io->regspacing)) >> io->regshift) & 0xff;
43 static void port_outl(const struct si_sm_io *io, unsigned int offset,
46 	unsigned int addr = io->addr_data;
48 	outl(b << io->regshift, addr+(offset * io->regspacing));
51 static void port_cleanup(struct si_sm_io *io)
53 	unsigned int addr = io->addr_data;
57 		for (idx = 0; idx < io->io_size; idx++)
58 			release_region(addr + idx * io->regspacing,
59 				       io->regsize);
63 int ipmi_si_port_setup(struct si_sm_io *io)
65 	unsigned int addr = io->addr_data;
75 	switch (io->regsize) {
77 		io->inputb = port_inb;
78 		io->outputb = port_outb;
81 		io->inputb = port_inw;
82 		io->outputb = port_outw;
85 		io->inputb = port_inl;
86 		io->outputb = port_outl;
89 		dev_warn(io->dev, "Invalid register size: %d\n",
90 			 io->regsize);
100 	for (idx = 0; idx < io->io_size; idx++) {
101 		if (request_region(addr + idx * io->regspacing,
102 				   io->regsize, SI_DEVICE_NAME) == NULL) {
105 				release_region(addr + idx * io->regspacing,
106 					       io->regsize);
111 	io->io_cleanup = port_cleanup;