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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2006-09-16 23:00:54 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-10-01 17:06:37 +0100
commitefd92dfaad962c4fbaf4251b28578c97bd3aa85f (patch)
treed3f0a68985fb72423681ac005df3500d8e3955b3 /drivers/serial
parent7ef057fa707897c19725d7e07123e57f6aea79db (diff)
[SERIAL] serial_cs: add configuration quirk
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>
Diffstat (limited to 'drivers/serial')
-rw-r--r--drivers/serial/serial_cs.c39
1 files changed, 34 insertions, 5 deletions
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index 8e48cb659b3..788ba404efc 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -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 @@ next_entry:
}
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);