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Diffstat (limited to 'drivers/serial/serial_cs.c')
-rw-r--r--drivers/serial/serial_cs.c292
1 files changed, 215 insertions, 77 deletions
diff --git a/drivers/serial/serial_cs.c b/drivers/serial/serial_cs.c
index cbf260bc225..00f9ffd6948 100644
--- a/drivers/serial/serial_cs.c
+++ b/drivers/serial/serial_cs.c
@@ -80,23 +80,16 @@ module_param(buggy_uart, int, 0444);
/* Table of multi-port card ID's */
-struct multi_id {
- u_short manfid;
- u_short prodid;
+struct serial_quirk {
+ unsigned int manfid;
+ unsigned int prodid;
int multi; /* 1 = multifunction, > 1 = # ports */
+ void (*config)(struct pcmcia_device *);
+ void (*setup)(struct pcmcia_device *, struct uart_port *);
+ void (*wakeup)(struct pcmcia_device *);
+ int (*post)(struct pcmcia_device *);
};
-static const struct multi_id multi_id[] = {
- { MANFID_OMEGA, PRODID_OMEGA_QSP_100, 4 },
- { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232, 2 },
- { MANFID_QUATECH, PRODID_QUATECH_DUAL_RS232_D1, 2 },
- { MANFID_QUATECH, PRODID_QUATECH_QUAD_RS232, 4 },
- { MANFID_SOCKET, PRODID_SOCKET_DUAL_RS232, 2 },
- { MANFID_INTEL, PRODID_INTEL_DUAL_RS232, 2 },
- { MANFID_NATINST, PRODID_NATINST_QUAD_RS232, 4 }
-};
-#define MULTI_COUNT (sizeof(multi_id)/sizeof(struct multi_id))
-
struct serial_info {
struct pcmcia_device *p_dev;
int ndev;
@@ -107,6 +100,7 @@ struct serial_info {
int c950ctrl;
dev_node_t node[4];
int line[4];
+ const struct serial_quirk *quirk;
};
struct serial_cfg_mem {
@@ -115,37 +109,165 @@ struct serial_cfg_mem {
u_char buf[256];
};
+/*
+ * vers_1 5.0, "Brain Boxes", "2-Port RS232 card", "r6"
+ * manfid 0x0160, 0x0104
+ * This card appears to have a 14.7456MHz clock.
+ */
+static void quirk_setup_brainboxes_0104(struct pcmcia_device *link, struct uart_port *port)
+{
+ port->uartclk = 14745600;
+}
-static int serial_config(struct pcmcia_device * link);
+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;
-static void wakeup_card(struct serial_info *info)
+ cs_failed:
+ cs_error(link, last_fn, last_ret);
+ return -ENODEV;
+}
+
+/*
+ * Nokia cards are not really multiport cards. Shouldn't this
+ * be handled by setting the quirk entry .multi = 0 | 1 ?
+ */
+static void quirk_config_nokia(struct pcmcia_device *link)
{
- int ctrl = info->c950ctrl;
-
- if (info->manfid == MANFID_OXSEMI) {
- outb(12, ctrl + 1);
- } else if (info->manfid == MANFID_POSSIO && info->prodid == PRODID_POSSIO_GCC) {
- /* request_region? oxsemi branch does no request_region too... */
- /* This sequence is needed to properly initialize MC45 attached to OXCF950.
- * I tried decreasing these msleep()s, but it worked properly (survived
- * 1000 stop/start operations) with these timeouts (or bigger). */
- outb(0xA, ctrl + 1);
- msleep(100);
- outb(0xE, ctrl + 1);
- msleep(300);
- outb(0xC, ctrl + 1);
- msleep(100);
- outb(0xE, ctrl + 1);
- msleep(200);
- outb(0xF, ctrl + 1);
- msleep(100);
- outb(0xE, ctrl + 1);
- msleep(100);
- outb(0xC, ctrl + 1);
+ struct serial_info *info = link->priv;
+
+ if (info->multi > 1)
+ info->multi = 1;
+}
+
+static void quirk_wakeup_oxsemi(struct pcmcia_device *link)
+{
+ struct serial_info *info = link->priv;
+
+ outb(12, info->c950ctrl + 1);
+}
+
+/* request_region? oxsemi branch does no request_region too... */
+/*
+ * This sequence is needed to properly initialize MC45 attached to OXCF950.
+ * I tried decreasing these msleep()s, but it worked properly (survived
+ * 1000 stop/start operations) with these timeouts (or bigger).
+ */
+static void quirk_wakeup_possio_gcc(struct pcmcia_device *link)
+{
+ struct serial_info *info = link->priv;
+ unsigned int ctrl = info->c950ctrl;
+
+ outb(0xA, ctrl + 1);
+ msleep(100);
+ outb(0xE, ctrl + 1);
+ msleep(300);
+ outb(0xC, ctrl + 1);
+ msleep(100);
+ outb(0xE, ctrl + 1);
+ msleep(200);
+ outb(0xF, ctrl + 1);
+ msleep(100);
+ outb(0xE, ctrl + 1);
+ msleep(100);
+ 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 = 0x0160,
+ .prodid = 0x0104,
+ .multi = -1,
+ .setup = quirk_setup_brainboxes_0104,
+ }, {
+ .manfid = MANFID_IBM,
+ .prodid = ~0,
+ .multi = -1,
+ .post = quirk_post_ibm,
+ }, {
+ .manfid = MANFID_INTEL,
+ .prodid = PRODID_INTEL_DUAL_RS232,
+ .multi = 2,
+ }, {
+ .manfid = MANFID_NATINST,
+ .prodid = PRODID_NATINST_QUAD_RS232,
+ .multi = 4,
+ }, {
+ .manfid = MANFID_NOKIA,
+ .prodid = ~0,
+ .multi = -1,
+ .config = quirk_config_nokia,
+ }, {
+ .manfid = MANFID_OMEGA,
+ .prodid = PRODID_OMEGA_QSP_100,
+ .multi = 4,
+ }, {
+ .manfid = MANFID_OXSEMI,
+ .prodid = ~0,
+ .multi = -1,
+ .wakeup = quirk_wakeup_oxsemi,
+ }, {
+ .manfid = MANFID_POSSIO,
+ .prodid = PRODID_POSSIO_GCC,
+ .multi = -1,
+ .wakeup = quirk_wakeup_possio_gcc,
+ }, {
+ .manfid = MANFID_QUATECH,
+ .prodid = PRODID_QUATECH_DUAL_RS232,
+ .multi = 2,
+ }, {
+ .manfid = MANFID_QUATECH,
+ .prodid = PRODID_QUATECH_DUAL_RS232_D1,
+ .multi = 2,
+ }, {
+ .manfid = MANFID_QUATECH,
+ .prodid = PRODID_QUATECH_QUAD_RS232,
+ .multi = 4,
+ }, {
+ .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,
+ }
+};
+
+
+static int serial_config(struct pcmcia_device * link);
+
+
/*======================================================================
After a card is removed, serial_remove() will unregister
@@ -185,14 +307,14 @@ static int serial_suspend(struct pcmcia_device *link)
static int serial_resume(struct pcmcia_device *link)
{
- if (pcmcia_dev_present(link)) {
- struct serial_info *info = link->priv;
- int i;
+ struct serial_info *info = link->priv;
+ int i;
- for (i = 0; i < info->ndev; i++)
- serial8250_resume_port(info->line[i]);
- wakeup_card(info);
- }
+ for (i = 0; i < info->ndev; i++)
+ serial8250_resume_port(info->line[i]);
+
+ if (info->quirk && info->quirk->wakeup)
+ info->quirk->wakeup(link);
return 0;
}
@@ -278,6 +400,10 @@ static int setup_serial(struct pcmcia_device *handle, struct serial_info * info,
port.dev = &handle_to_dev(handle);
if (buggy_uart)
port.flags |= UPF_BUGGY_UART;
+
+ if (info->quirk && info->quirk->setup)
+ info->quirk->setup(handle, &port);
+
line = serial8250_register_port(&port);
if (line < 0) {
printk(KERN_NOTICE "serial_cs: serial8250_register_port() at "
@@ -433,6 +559,13 @@ 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);
@@ -521,11 +654,13 @@ 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);
@@ -550,17 +685,19 @@ static int multi_config(struct pcmcia_device * link)
link->irq.AssignedIRQ);
}
info->c950ctrl = base2;
- wakeup_card(info);
+
+ /*
+ * FIXME: We really should wake up the port prior to
+ * handing it over to the serial layer.
+ */
+ if (info->quirk && info->quirk->wakeup)
+ info->quirk->wakeup(link);
+
rc = 0;
goto free_cfg_mem;
}
setup_serial(link, info, link->io.BasePort1, link->irq.AssignedIRQ);
- /* The Nokia cards are not really multiport cards */
- if (info->manfid == MANFID_NOKIA) {
- rc = 0;
- goto free_cfg_mem;
- }
for (i = 0; i < info->multi - 1; i++)
setup_serial(link, info, base2 + (8 * i),
link->irq.AssignedIRQ);
@@ -622,13 +759,16 @@ static int serial_config(struct pcmcia_device * link)
tuple->DesiredTuple = CISTPL_MANFID;
if (first_tuple(link, tuple, parse) == CS_SUCCESS) {
info->manfid = parse->manfid.manf;
- info->prodid = le16_to_cpu(buf[1]);
- for (i = 0; i < MULTI_COUNT; i++)
- if ((info->manfid == multi_id[i].manfid) &&
- (parse->manfid.card == multi_id[i].prodid))
+ info->prodid = parse->manfid.card;
+
+ for (i = 0; i < ARRAY_SIZE(quirks); i++)
+ if ((quirks[i].manfid == ~0 ||
+ quirks[i].manfid == info->manfid) &&
+ (quirks[i].prodid == ~0 ||
+ quirks[i].prodid == info->prodid)) {
+ info->quirk = &quirks[i];
break;
- if (i < MULTI_COUNT)
- info->multi = multi_id[i].multi;
+ }
}
/* Another check for dual-serial cards: look for either serial or
@@ -648,6 +788,12 @@ static int serial_config(struct pcmcia_device * link)
}
}
+ /*
+ * Apply any multi-port quirk.
+ */
+ if (info->quirk && info->quirk->multi != -1)
+ info->multi = info->quirk->multi;
+
if (info->multi > 1)
multi_config(link);
else
@@ -656,21 +802,13 @@ 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);
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 04:40:02 +0000