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[SERIAL] serial_cs: add configuration quirk

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Add a quirk primerily to handle tweaks to the link->conf structure,
eg as required for Socket cards.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2006-09-16 23:00:54 +01:00 committed by Russell King
parent 7ef057fa70
commit efd92dfaad
1 changed files with 34 additions and 5 deletions
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39
drivers/serial/serial_cs.c
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@ -84,6 +84,7 @@ struct serial_quirk {
unsigned int manfid;
unsigned int prodid;
int multi; /* 1 = multifunction, > 1 = # ports */
void (*config)(struct pcmcia_device *);
void (*wakeup)(struct pcmcia_device *);
int (*post)(struct pcmcia_device *);
};
@ -164,6 +165,19 @@ static void quirk_wakeup_possio_gcc(struct pcmcia_device *link)
outb(0xC, ctrl + 1);
}
/*
* Socket Dual IO: this enables irq's for second port
*/
static void quirk_config_socket(struct pcmcia_device *link)
{
struct serial_info *info = link->priv;
if (info->multi) {
link->conf.Present |= PRESENT_EXT_STATUS;
link->conf.ExtStatus = ESR_REQ_ATTN_ENA;
}
}
static const struct serial_quirk quirks[] = {
{
.manfid = MANFID_IBM,
@ -208,6 +222,12 @@ static const struct serial_quirk quirks[] = {
.manfid = MANFID_SOCKET,
.prodid = PRODID_SOCKET_DUAL_RS232,
.multi = 2,
.config = quirk_config_socket,
}, {
.manfid = MANFID_SOCKET,
.prodid = ~0,
.multi = -1,
.config = quirk_config_socket,
}
};
@ -504,6 +524,13 @@ static int simple_config(struct pcmcia_device *link)
}
if (info->multi && (info->manfid == MANFID_3COM))
link->conf.ConfigIndex &= ~(0x08);
/*
* Apply any configuration quirks.
*/
if (info->quirk && info->quirk->config)
info->quirk->config(link);
i = pcmcia_request_configuration(link, &link->conf);
if (i != CS_SUCCESS) {
cs_error(link, RequestConfiguration, i);
@ -592,11 +619,13 @@ static int multi_config(struct pcmcia_device * link)
cs_error(link, RequestIRQ, i);
link->irq.AssignedIRQ = 0;
}
/* Socket Dual IO: this enables irq's for second port */
if (info->multi && (info->manfid == MANFID_SOCKET)) {
link->conf.Present |= PRESENT_EXT_STATUS;
link->conf.ExtStatus = ESR_REQ_ATTN_ENA;
}
/*
* Apply any configuration quirks.
*/
if (info->quirk && info->quirk->config)
info->quirk->config(link);
i = pcmcia_request_configuration(link, &link->conf);
if (i != CS_SUCCESS) {
cs_error(link, RequestConfiguration, i);