Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-serial
[pandora-kernel.git] / drivers / serial / serial_cs.c
index cbf260b..00f9ffd 100644 (file)
@@ -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);