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[SERIAL] serial_cs: convert IBM post-init handling to a quirk 

Move IBM quirk handling into its own quirk entry.  Note that doing
quirk handling after we've registered the ports is racy, but since
I don't know if moving this will have an undesired effect, it's
probably better to leave where it is.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-09-16 21:34:11 +01:00 committed by Russell King
parent a8244b564c
commit eee3a883ce
1 changed files with 56 additions and 34 deletions
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90
drivers/serial/serial_cs.c
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@ -84,10 +84,59 @@ struct serial_quirk {
unsigned int manfid;
unsigned int prodid;
int multi; /* 1 = multifunction, > 1 = # ports */
int (*post)(struct pcmcia_device *);
};
struct serial_info {
struct pcmcia_device *p_dev;
int ndev;
int multi;
int slave;
int manfid;
int prodid;
int c950ctrl;
dev_node_t node[4];
int line[4];
const struct serial_quirk *quirk;
};
struct serial_cfg_mem {
tuple_t tuple;
cisparse_t parse;
u_char buf[256];
};
static int quirk_post_ibm(struct pcmcia_device *link)
{
conf_reg_t reg = { 0, CS_READ, 0x800, 0 };
int last_ret, last_fn;
last_ret = pcmcia_access_configuration_register(link, &reg);
if (last_ret) {
last_fn = AccessConfigurationRegister;
goto cs_failed;
}
reg.Action = CS_WRITE;
reg.Value = reg.Value | 1;
last_ret = pcmcia_access_configuration_register(link, &reg);
if (last_ret) {
last_fn = AccessConfigurationRegister;
goto cs_failed;
}
return 0;
cs_failed:
cs_error(link, last_fn, last_ret);
return -ENODEV;
}
static const struct serial_quirk quirks[] = {
{
.manfid = MANFID_IBM,
.prodid = ~0,
.multi = -1,
.post = quirk_post_ibm,
}, {
.manfid = MANFID_OMEGA,
.prodid = PRODID_OMEGA_QSP_100,
.multi = 4,
@ -118,25 +167,6 @@ static const struct serial_quirk quirks[] = {
}
};
struct serial_info {
struct pcmcia_device *p_dev;
int ndev;
int multi;
int slave;
int manfid;
int prodid;
int c950ctrl;
dev_node_t node[4];
int line[4];
const struct serial_quirk *quirk;
};
struct serial_cfg_mem {
tuple_t tuple;
cisparse_t parse;
u_char buf[256];
};
static int serial_config(struct pcmcia_device * link);
@ -687,21 +717,13 @@ static int serial_config(struct pcmcia_device * link)
if (info->ndev == 0)
goto failed;
if (info->manfid == MANFID_IBM) {
conf_reg_t reg = { 0, CS_READ, 0x800, 0 };
last_ret = pcmcia_access_configuration_register(link, &reg);
if (last_ret) {
last_fn = AccessConfigurationRegister;
goto cs_failed;
}
reg.Action = CS_WRITE;
reg.Value = reg.Value | 1;
last_ret = pcmcia_access_configuration_register(link, &reg);
if (last_ret) {
last_fn = AccessConfigurationRegister;
goto cs_failed;
}
}
/*
* Apply any post-init quirk. FIXME: This should really happen
* before we register the port, since it might already be in use.
*/
if (info->quirk && info->quirk->post)
if (info->quirk->post(link))
goto failed;
link->dev_node = &info->node[0];
kfree(cfg_mem);