nfsd4: setclientid_confirm callback-change fixes
[safe/jmp/linux-2.6] / drivers / serial / pmac_zilog.c
index bfd2a22..9c1243f 100644 (file)
@@ -88,6 +88,16 @@ MODULE_LICENSE("GPL");
 
 #define PWRDBG(fmt, arg...)    printk(KERN_DEBUG fmt , ## arg)
 
+#ifdef CONFIG_SERIAL_PMACZILOG_TTYS
+#define PMACZILOG_MAJOR                TTY_MAJOR
+#define PMACZILOG_MINOR                64
+#define PMACZILOG_NAME         "ttyS"
+#else
+#define PMACZILOG_MAJOR                204
+#define PMACZILOG_MINOR                192
+#define PMACZILOG_NAME         "ttyPZ"
+#endif
+
 
 /*
  * For the sake of early serial console, we can do a pre-probe
@@ -99,9 +109,10 @@ static DEFINE_MUTEX(pmz_irq_mutex);
 
 static struct uart_driver pmz_uart_reg = {
        .owner          =       THIS_MODULE,
-       .driver_name    =       "ttyS",
-       .dev_name       =       "ttyS",
-       .major          =       TTY_MAJOR,
+       .driver_name    =       PMACZILOG_NAME,
+       .dev_name       =       PMACZILOG_NAME,
+       .major          =       PMACZILOG_MAJOR,
+       .minor          =       PMACZILOG_MINOR,
 };
 
 
@@ -204,8 +215,7 @@ static void pmz_maybe_update_regs(struct uart_pmac_port *uap)
        }
 }
 
-static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap,
-                                           struct pt_regs *regs)
+static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap)
 {
        struct tty_struct *tty = NULL;
        unsigned char ch, r1, drop, error, flag;
@@ -232,12 +242,12 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap,
        }
 
        /* Sanity check, make sure the old bug is no longer happening */
-       if (uap->port.info == NULL || uap->port.info->tty == NULL) {
+       if (uap->port.info == NULL || uap->port.info->port.tty == NULL) {
                WARN_ON(1);
                (void)read_zsdata(uap);
                return NULL;
        }
-       tty = uap->port.info->tty;
+       tty = uap->port.info->port.tty;
 
        while (1) {
                error = 0;
@@ -267,7 +277,7 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap,
                if (uap->port.sysrq) {
                        int swallow;
                        spin_unlock(&uap->port.lock);
-                       swallow = uart_handle_sysrq_char(&uap->port, ch, regs);
+                       swallow = uart_handle_sysrq_char(&uap->port, ch);
                        spin_lock(&uap->port.lock);
                        if (swallow)
                                goto next_char;
@@ -335,7 +345,7 @@ static struct tty_struct *pmz_receive_chars(struct uart_pmac_port *uap,
        return tty;
 }
 
-static void pmz_status_handle(struct uart_pmac_port *uap, struct pt_regs *regs)
+static void pmz_status_handle(struct uart_pmac_port *uap)
 {
        unsigned char status;
 
@@ -438,7 +448,7 @@ ack_tx_int:
 }
 
 /* Hrm... we register that twice, fixme later.... */
-static irqreturn_t pmz_interrupt(int irq, void *dev_id, struct pt_regs *regs)
+static irqreturn_t pmz_interrupt(int irq, void *dev_id)
 {
        struct uart_pmac_port *uap = dev_id;
        struct uart_pmac_port *uap_a;
@@ -462,9 +472,9 @@ static irqreturn_t pmz_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                write_zsreg(uap_a, R0, RES_H_IUS);
                zssync(uap_a);          
                        if (r3 & CHAEXT)
-                               pmz_status_handle(uap_a, regs);
+                               pmz_status_handle(uap_a);
                if (r3 & CHARxIP)
-                       tty = pmz_receive_chars(uap_a, regs);
+                       tty = pmz_receive_chars(uap_a);
                        if (r3 & CHATxIP)
                                pmz_transmit_chars(uap_a);
                rc = IRQ_HANDLED;
@@ -482,9 +492,9 @@ static irqreturn_t pmz_interrupt(int irq, void *dev_id, struct pt_regs *regs)
                write_zsreg(uap_b, R0, RES_H_IUS);
                zssync(uap_b);
                        if (r3 & CHBEXT)
-                               pmz_status_handle(uap_b, regs);
+                               pmz_status_handle(uap_b);
                        if (r3 & CHBRxIP)
-                               tty = pmz_receive_chars(uap_b, regs);
+                               tty = pmz_receive_chars(uap_b);
                        if (r3 & CHBTxIP)
                                pmz_transmit_chars(uap_b);
                rc = IRQ_HANDLED;
@@ -1263,8 +1273,8 @@ static void pmz_irda_setup(struct uart_pmac_port *uap, unsigned long *baud)
 }
 
 
-static void __pmz_set_termios(struct uart_port *port, struct termios *termios,
-                             struct termios *old)
+static void __pmz_set_termios(struct uart_port *port, struct ktermios *termios,
+                             struct ktermios *old)
 {
        struct uart_pmac_port *uap = to_pmz(port);
        unsigned long baud;
@@ -1274,7 +1284,7 @@ static void __pmz_set_termios(struct uart_port *port, struct termios *termios,
        if (ZS_IS_ASLEEP(uap))
                return;
 
-       memcpy(&uap->termios_cache, termios, sizeof(struct termios));
+       memcpy(&uap->termios_cache, termios, sizeof(struct ktermios));
 
        /* XXX Check which revs of machines actually allow 1 and 4Mb speeds
         * on the IR dongle. Note that the IRTTY driver currently doesn't know
@@ -1314,8 +1324,8 @@ static void __pmz_set_termios(struct uart_port *port, struct termios *termios,
 }
 
 /* The port lock is not held.  */
-static void pmz_set_termios(struct uart_port *port, struct termios *termios,
-                           struct termios *old)
+static void pmz_set_termios(struct uart_port *port, struct ktermios *termios,
+                           struct ktermios *old)
 {
        struct uart_pmac_port *uap = to_pmz(port);
        unsigned long flags;
@@ -1373,6 +1383,29 @@ static int pmz_verify_port(struct uart_port *port, struct serial_struct *ser)
        return -EINVAL;
 }
 
+#ifdef CONFIG_CONSOLE_POLL
+
+static int pmz_poll_get_char(struct uart_port *port)
+{
+       struct uart_pmac_port *uap = (struct uart_pmac_port *)port;
+
+       while ((read_zsreg(uap, R0) & Rx_CH_AV) == 0)
+               udelay(5);
+       return read_zsdata(uap);
+}
+
+static void pmz_poll_put_char(struct uart_port *port, unsigned char c)
+{
+       struct uart_pmac_port *uap = (struct uart_pmac_port *)port;
+
+       /* Wait for the transmit buffer to empty. */
+       while ((read_zsreg(uap, R0) & Tx_BUF_EMP) == 0)
+               udelay(5);
+       write_zsdata(uap, c);
+}
+
+#endif
+
 static struct uart_ops pmz_pops = {
        .tx_empty       =       pmz_tx_empty,
        .set_mctrl      =       pmz_set_mctrl,
@@ -1390,6 +1423,10 @@ static struct uart_ops pmz_pops = {
        .request_port   =       pmz_request_port,
        .config_port    =       pmz_config_port,
        .verify_port    =       pmz_verify_port,
+#ifdef CONFIG_CONSOLE_POLL
+       .poll_get_char  =       pmz_poll_get_char,
+       .poll_put_char  =       pmz_poll_put_char,
+#endif
 };
 
 /*
@@ -1400,8 +1437,8 @@ static struct uart_ops pmz_pops = {
 static int __init pmz_init_port(struct uart_pmac_port *uap)
 {
        struct device_node *np = uap->node;
-       char *conn;
-       struct slot_names_prop {
+       const char *conn;
+       const struct slot_names_prop {
                int     count;
                char    name[1];
        } *slots;
@@ -1451,14 +1488,14 @@ no_dma:
        /*
         * Detect port type
         */
-       if (device_is_compatible(np, "cobalt"))
+       if (of_device_is_compatible(np, "cobalt"))
                uap->flags |= PMACZILOG_FLAG_IS_INTMODEM;
-       conn = get_property(np, "AAPL,connector", &len);
+       conn = of_get_property(np, "AAPL,connector", &len);
        if (conn && (strcmp(conn, "infrared") == 0))
                uap->flags |= PMACZILOG_FLAG_IS_IRDA;
        uap->port_type = PMAC_SCC_ASYNC;
        /* 1999 Powerbook G3 has slot-names property instead */
-       slots = (struct slot_names_prop *)get_property(np, "slot-names", &len);
+       slots = of_get_property(np, "slot-names", &len);
        if (slots && slots->count > 0) {
                if (strcmp(slots->name, "IrDA") == 0)
                        uap->flags |= PMACZILOG_FLAG_IS_IRDA;
@@ -1468,9 +1505,11 @@ no_dma:
        if (ZS_IS_IRDA(uap))
                uap->port_type = PMAC_SCC_IRDA;
        if (ZS_IS_INTMODEM(uap)) {
-               struct device_node* i2c_modem = find_devices("i2c-modem");
+               struct device_node* i2c_modem =
+                       of_find_node_by_name(NULL, "i2c-modem");
                if (i2c_modem) {
-                       char* mid = get_property(i2c_modem, "modem-id", NULL);
+                       const char* mid =
+                               of_get_property(i2c_modem, "modem-id", NULL);
                        if (mid) switch(*mid) {
                        case 0x04 :
                        case 0x05 :
@@ -1482,6 +1521,7 @@ no_dma:
                        }
                        printk(KERN_INFO "pmac_zilog: i2c-modem detected, id: %d\n",
                                mid ? (*mid) : 0);
+                       of_node_put(i2c_modem);
                } else {
                        printk(KERN_INFO "pmac_zilog: serial modem detected\n");
                }
@@ -1498,6 +1538,21 @@ no_dma:
        uap->port.type = PORT_PMAC_ZILOG;
        uap->port.flags = 0;
 
+       /*
+        * Fixup for the port on Gatwick for which the device-tree has
+        * missing interrupts. Normally, the macio_dev would contain
+        * fixed up interrupt info, but we use the device-tree directly
+        * here due to early probing so we need the fixup too.
+        */
+       if (uap->port.irq == NO_IRQ &&
+           np->parent && np->parent->parent &&
+           of_device_is_compatible(np->parent->parent, "gatwick")) {
+               /* IRQs on gatwick are offset by 64 */
+               uap->port.irq = irq_create_mapping(NULL, 64 + 15);
+               uap->tx_dma_irq = irq_create_mapping(NULL, 64 + 4);
+               uap->rx_dma_irq = irq_create_mapping(NULL, 64 + 5);
+       }
+
        /* Setup some valid baud rate information in the register
         * shadows so we don't write crap there before baud rate is
         * first initialized.
@@ -1585,7 +1640,7 @@ static int pmz_suspend(struct macio_dev *mdev, pm_message_t pm_state)
        if (pm_state.event == mdev->ofdev.dev.power.power_state.event)
                return 0;
 
-       pmz_debug("suspend, switching to state %d\n", pm_state);
+       pmz_debug("suspend, switching to state %d\n", pm_state.event);
 
        state = pmz_uart_reg.state + uap->port.line;
 
@@ -1776,7 +1831,7 @@ static void pmz_console_write(struct console *con, const char *s, unsigned int c
 static int __init pmz_console_setup(struct console *co, char *options);
 
 static struct console pmz_console = {
-       .name   =       "ttyS",
+       .name   =       PMACZILOG_NAME,
        .write  =       pmz_console_write,
        .device =       uart_console_device,
        .setup  =       pmz_console_setup,
@@ -1800,7 +1855,6 @@ static int __init pmz_register(void)
        
        pmz_uart_reg.nr = pmz_ports_count;
        pmz_uart_reg.cons = PMACZILOG_CONSOLE;
-       pmz_uart_reg.minor = 64;
 
        /*
         * Register this driver with the serial core