add original danube gpio driver ... already did some minor cleanup
authorJohn Crispin <john@openwrt.org>
Thu, 13 Dec 2007 21:10:25 +0000 (21:10 +0000)
committerJohn Crispin <john@openwrt.org>
Thu, 13 Dec 2007 21:10:25 +0000 (21:10 +0000)
SVN-Revision: 9738

target/linux/danube/files/arch/mips/danube/Kconfig
target/linux/danube/files/drivers/char/danube_gpio.c [new file with mode: 0644]
target/linux/danube/patches/110-drivers.patch

index 08e5fd4..06404bf 100644 (file)
@@ -20,5 +20,9 @@ config DANUBE_LED
        bool "Danube led"
        default y
 
+config DANUBE_GPIO
+       bool "Danube gpio"
+       default y
+
 endmenu
 
diff --git a/target/linux/danube/files/drivers/char/danube_gpio.c b/target/linux/danube/files/drivers/char/danube_gpio.c
new file mode 100644 (file)
index 0000000..0157446
--- /dev/null
@@ -0,0 +1,855 @@
+/*
+ *   This program is free software; you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation; either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program; if not, write to the Free Software
+ *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ *   Copyright (C) 2005 infineon
+ *   Copyright (C) 2007 John Crispin <blogic@openwrt.org> 
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/proc_fs.h>
+#include <linux/init.h>
+#include <linux/ioctl.h>
+#include <asm/semaphore.h>
+#include <asm/uaccess.h>
+#include <asm/danube/danube.h>
+#include <asm/danube/port.h>
+#include "port_defs.h"
+
+#define MAX_PORTS      2       // Number of ports in system
+#define PINS_PER_PORT  16      // Number of available pins per port
+
+static int port_major = 0;
+static int danube_port_pin_usage[MAX_PORTS][PINS_PER_PORT];    // Map for pin usage
+static u32 danube_port_bases[MAX_PORTS]
+       = { DANUBE_GPIO,
+       DANUBE_GPIO + 0x00000030
+};                             // Base addresses for ports
+
+static struct semaphore port_sem;
+
+int
+danube_port_reserve_pin (int port, int pin, int module_id)
+{
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] == 0) {
+               danube_port_pin_usage[port][pin] = module_id;
+       }
+       else {
+               return -EBUSY;
+       }
+
+       return OK;
+}
+
+int
+danube_port_free_pin (int port, int pin, int module_id)
+{
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+       danube_port_pin_usage[port][pin] = 0;
+
+       return OK;
+}
+
+int
+danube_port_set_open_drain (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_open_drain (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OD_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_set_pudsel (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG, reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG,
+                       reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_pudsel (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG, reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDSEL_REG,
+                       reg);
+
+       return OK;
+}
+
+int
+danube_port_set_puden (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_puden (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_PUDEN_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_set_stoff (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_stoff (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_STOFF_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_set_dir_out (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_set_dir_in (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_DIR_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_set_output (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_output (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_OUT_REG, reg);
+
+       return OK;
+}
+
+int
+danube_port_get_input (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_IN_REG, reg);
+       reg &= (1 << pin);
+       if (reg == 0x00)
+               return 0;
+       else
+               return 1;
+}
+
+int
+danube_port_set_altsel0 (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG,
+                      reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG,
+                       reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_altsel0 (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG,
+                      reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL0_REG,
+                       reg);
+
+       return OK;
+}
+
+int
+danube_port_set_altsel1 (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG,
+                      reg);
+       reg |= (1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG,
+                       reg);
+
+       return OK;
+}
+
+int
+danube_port_clear_altsel1 (int port, int pin, int module_id)
+{
+       u32 reg;
+
+       if (port < 0 || pin < 0)
+               return -EINVAL;
+       if (port > MAX_PORTS || pin > PINS_PER_PORT)
+               return -EINVAL;
+
+       if (danube_port_pin_usage[port][pin] != module_id)
+               return -EBUSY;
+
+       PORT_READ_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG,
+                      reg);
+       reg &= ~(1 << pin);
+       PORT_WRITE_REG (danube_port_bases[port] + DANUBE_PORT_ALTSEL1_REG,
+                       reg);
+
+       return OK;
+}
+
+int
+danube_port_read_procmem (char *buf, char **start, off_t offset, int count,
+                         int *eof, void *data)
+{
+       long len = 0;
+       int t = 0;
+       u32 bit = 0;
+       u32 reg = 0;
+
+       len = sprintf (buf, "\nDanube Port Settings\n");
+
+       len = len + sprintf (buf + len,
+                            "         3         2         1         0\n");
+       len = len + sprintf (buf + len,
+                            "        10987654321098765432109876543210\n");
+       len = len + sprintf (buf + len,
+                            "----------------------------------------\n");
+
+       len = len + sprintf (buf + len, "\nP0-OUT: ");
+       PORT_READ_REG (DANUBE_GPIO_P0_OUT, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-OUT: ");
+       PORT_READ_REG (DANUBE_GPIO_P1_OUT, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0-IN:  ");
+       PORT_READ_REG (DANUBE_GPIO_P0_IN, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-IN:  ");
+       PORT_READ_REG (DANUBE_GPIO_P1_IN, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0-DIR: ");
+       PORT_READ_REG (DANUBE_GPIO_P0_DIR, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-DIR: ");
+       PORT_READ_REG (DANUBE_GPIO_P1_DIR, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0-STO: ");
+       PORT_READ_REG (DANUBE_GPIO_P0_STOFF, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-STO: ");
+       PORT_READ_REG (DANUBE_GPIO_P1_STOFF, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0-PUDE:");
+       PORT_READ_REG (DANUBE_GPIO_P0_PUDEN, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-PUDE:");
+       PORT_READ_REG (DANUBE_GPIO_P1_PUDEN, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0-OD:  ");
+       PORT_READ_REG (DANUBE_GPIO_P0_OD, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-OD:  ");
+       PORT_READ_REG (DANUBE_GPIO_P1_OD, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0-PUDS:");
+       PORT_READ_REG (DANUBE_GPIO_P0_PUDSEL, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1-PUDS:");
+       PORT_READ_REG (DANUBE_GPIO_P1_PUDSEL, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0_ALT0:");
+       PORT_READ_REG (DANUBE_GPIO_P0_ALTSEL0, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP0_ALT1:");
+       PORT_READ_REG (DANUBE_GPIO_P0_ALTSEL1, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1_ALT0:");
+       PORT_READ_REG (DANUBE_GPIO_P1_ALTSEL0, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\nP1_ALT1:");
+       PORT_READ_REG (DANUBE_GPIO_P1_ALTSEL1, reg);
+       bit = 0x80000000;
+       for (t = 0; t < 32; t++) {
+               if ((reg & bit) > 0)
+                       len = len + sprintf (buf + len, "X");
+               else
+                       len = len + sprintf (buf + len, " ");
+               bit = bit >> 1;
+       }
+
+       len = len + sprintf (buf + len, "\n\n");
+
+       *eof = 1;               // No more data available
+       return len;
+}
+
+static int
+danube_port_open (struct inode *inode, struct file *filep)
+{
+       return OK;
+}
+
+static int
+danube_port_release (struct inode *inode, struct file *filelp)
+{
+       return OK;
+}
+
+static int
+danube_port_ioctl (struct inode *inode, struct file *filp,
+                  unsigned int cmd, unsigned long arg)
+{
+       int ret = 0;
+       volatile struct danube_port_ioctl_parm parm;
+
+       if (_IOC_TYPE (cmd) != DANUBE_PORT_IOC_MAGIC)
+               return -EINVAL;
+
+       if (_IOC_DIR (cmd) & _IOC_WRITE) {
+               if (!access_ok
+                   (VERIFY_READ, arg,
+                    sizeof (struct danube_port_ioctl_parm)))
+                       return -EFAULT;
+               ret = copy_from_user ((void *) &parm, (void *) arg,
+                                     sizeof (struct danube_port_ioctl_parm));
+       }
+       if (_IOC_DIR (cmd) & _IOC_READ) {
+               if (!access_ok
+                   (VERIFY_WRITE, arg,
+                    sizeof (struct danube_port_ioctl_parm)))
+                       return -EFAULT;
+       }
+
+       if (down_trylock (&port_sem) != 0)
+               return -EBUSY;
+
+       switch (cmd) {
+       case DANUBE_PORT_IOCOD:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_open_drain);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_open_drain);
+               }
+               break;
+       case DANUBE_PORT_IOCPUDSEL:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_pudsel);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_pudsel);
+               }
+               break;
+       case DANUBE_PORT_IOCPUDEN:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_puden);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_puden);
+               }
+               break;
+       case DANUBE_PORT_IOCSTOFF:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_stoff);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_stoff);
+               }
+               break;
+       case DANUBE_PORT_IOCDIR:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_dir_in);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_dir_out);
+               }
+               break;
+       case DANUBE_PORT_IOCOUTPUT:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_output);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_output);
+               }
+               break;
+       case DANUBE_PORT_IOCALTSEL0:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_altsel0);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_altsel0);
+               }
+               break;
+       case DANUBE_PORT_IOCALTSEL1:
+               if (parm.value == 0x00) {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_clear_altsel1);
+               }
+               else {
+                       PORT_IOC_CALL (ret, parm.port, parm.pin,
+                                      danube_port_set_altsel1);
+               }
+               break;
+       case DANUBE_PORT_IOCINPUT:
+               ret = danube_port_reserve_pin (parm.port, parm.pin,
+                                              PORT_MODULE_ID);
+               if (ret == 0)
+                       parm.value =
+                               danube_port_get_input (parm.port, parm.pin,
+                                                      PORT_MODULE_ID);
+               ret = danube_port_free_pin (parm.port, parm.pin,
+                                           PORT_MODULE_ID);
+               copy_to_user ((void *) arg, (void *) &parm,
+                             sizeof (struct danube_port_ioctl_parm));
+               break;
+       default:
+               ret = -EINVAL;
+       }
+
+       up (&port_sem);
+
+       return ret;
+}
+
+static struct file_operations port_fops = {
+      open:danube_port_open,
+      release:danube_port_release,
+      ioctl:danube_port_ioctl
+};
+
+int __init
+danube_port_init (void)
+{
+       int t = 0;
+       int i = 0;
+       int err = 0;
+       u32 pins = 0;
+
+       printk ("Danube Port Initialization\n");
+
+       sema_init (&port_sem, 1);
+
+       /* Check ports for available pins */
+       for (t = 0; t < MAX_PORTS; t++) {
+               for (i = 0; i < PINS_PER_PORT; i++)
+                       danube_port_pin_usage[t][i] = 0;
+       }
+
+       /* register port device */
+       err = register_chrdev (0, "danube-port", &port_fops);
+       if (err > 0)
+               port_major = err;
+       else {
+               printk ("danube-port: Error! Could not register port device. #%d\n", err);
+               return err;
+       }
+
+       /* Create proc file */
+       create_proc_read_entry ("driver/danube_port", 0, NULL,
+                               danube_port_read_procmem, NULL);
+
+       return OK;
+}
+
+module_init (danube_port_init);
+
+EXPORT_SYMBOL (danube_port_reserve_pin);
+EXPORT_SYMBOL (danube_port_free_pin);
+EXPORT_SYMBOL (danube_port_set_open_drain);
+EXPORT_SYMBOL (danube_port_clear_open_drain);
+EXPORT_SYMBOL (danube_port_set_pudsel);
+EXPORT_SYMBOL (danube_port_clear_pudsel);
+EXPORT_SYMBOL (danube_port_set_puden);
+EXPORT_SYMBOL (danube_port_clear_puden);
+EXPORT_SYMBOL (danube_port_set_stoff);
+EXPORT_SYMBOL (danube_port_clear_stoff);
+EXPORT_SYMBOL (danube_port_set_dir_out);
+EXPORT_SYMBOL (danube_port_set_dir_in);
+EXPORT_SYMBOL (danube_port_set_output);
+EXPORT_SYMBOL (danube_port_clear_output);
+EXPORT_SYMBOL (danube_port_get_input);
+
+EXPORT_SYMBOL (danube_port_set_altsel0);
+EXPORT_SYMBOL (danube_port_clear_altsel0);
+EXPORT_SYMBOL (danube_port_set_altsel1);
+EXPORT_SYMBOL (danube_port_clear_altsel1);
index 3004672..5d170fa 100644 (file)
@@ -1,7 +1,7 @@
 Index: linux-2.6.23/drivers/serial/Kconfig
 ===================================================================
---- linux-2.6.23.orig/drivers/serial/Kconfig   2007-12-10 21:38:39.000000000 +0100
-+++ linux-2.6.23/drivers/serial/Kconfig        2007-12-10 21:38:42.000000000 +0100
+--- linux-2.6.23.orig/drivers/serial/Kconfig   2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/serial/Kconfig        2007-12-13 20:41:57.000000000 +0100
 @@ -1259,4 +1259,10 @@
          Currently, only 8250 compatible ports are supported, but
          others can easily be added.
@@ -15,8 +15,8 @@ Index: linux-2.6.23/drivers/serial/Kconfig
  endmenu
 Index: linux-2.6.23/drivers/serial/Makefile
 ===================================================================
---- linux-2.6.23.orig/drivers/serial/Makefile  2007-12-10 21:38:39.000000000 +0100
-+++ linux-2.6.23/drivers/serial/Makefile       2007-12-10 21:38:42.000000000 +0100
+--- linux-2.6.23.orig/drivers/serial/Makefile  2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/serial/Makefile       2007-12-13 20:41:57.000000000 +0100
 @@ -64,3 +64,4 @@
  obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
  obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
@@ -24,8 +24,8 @@ Index: linux-2.6.23/drivers/serial/Makefile
 +obj-$(CONFIG_SERIAL_DANUBE) += danube_asc.o
 Index: linux-2.6.23/drivers/mtd/maps/Makefile
 ===================================================================
---- linux-2.6.23.orig/drivers/mtd/maps/Makefile        2007-12-10 21:38:39.000000000 +0100
-+++ linux-2.6.23/drivers/mtd/maps/Makefile     2007-12-10 21:38:42.000000000 +0100
+--- linux-2.6.23.orig/drivers/mtd/maps/Makefile        2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/mtd/maps/Makefile     2007-12-13 20:41:57.000000000 +0100
 @@ -71,3 +71,4 @@
  obj-$(CONFIG_MTD_OMAP_NOR)    += omap_nor.o
  obj-$(CONFIG_MTD_MTX1)                += mtx-1_flash.o
@@ -33,8 +33,8 @@ Index: linux-2.6.23/drivers/mtd/maps/Makefile
 +obj-$(CONFIG_MTD_DANUBE)      += danube.o
 Index: linux-2.6.23/drivers/net/Kconfig
 ===================================================================
---- linux-2.6.23.orig/drivers/net/Kconfig      2007-12-10 21:38:42.000000000 +0100
-+++ linux-2.6.23/drivers/net/Kconfig   2007-12-10 21:38:42.000000000 +0100
+--- linux-2.6.23.orig/drivers/net/Kconfig      2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/net/Kconfig   2007-12-13 20:41:57.000000000 +0100
 @@ -339,6 +339,18 @@
  
  source "drivers/net/arm/Kconfig"
@@ -56,8 +56,8 @@ Index: linux-2.6.23/drivers/net/Kconfig
        depends on ARM || MIPS
 Index: linux-2.6.23/drivers/net/Makefile
 ===================================================================
---- linux-2.6.23.orig/drivers/net/Makefile     2007-12-10 21:38:42.000000000 +0100
-+++ linux-2.6.23/drivers/net/Makefile  2007-12-10 21:38:42.000000000 +0100
+--- linux-2.6.23.orig/drivers/net/Makefile     2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/net/Makefile  2007-12-13 20:41:57.000000000 +0100
 @@ -208,6 +208,7 @@
  obj-$(CONFIG_FEC_8XX) += fec_8xx/
  obj-$(CONFIG_PASEMI_MAC) += pasemi_mac.o
@@ -68,8 +68,8 @@ Index: linux-2.6.23/drivers/net/Makefile
  
 Index: linux-2.6.23/drivers/char/watchdog/Makefile
 ===================================================================
---- linux-2.6.23.orig/drivers/char/watchdog/Makefile   2007-12-10 21:41:51.000000000 +0100
-+++ linux-2.6.23/drivers/char/watchdog/Makefile        2007-12-10 21:42:30.000000000 +0100
+--- linux-2.6.23.orig/drivers/char/watchdog/Makefile   2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/char/watchdog/Makefile        2007-12-13 20:41:57.000000000 +0100
 @@ -90,6 +90,7 @@
  obj-$(CONFIG_INDYDOG) += indydog.o
  obj-$(CONFIG_WDT_MTX1)        += mtx-1_wdt.o
@@ -78,3 +78,14 @@ Index: linux-2.6.23/drivers/char/watchdog/Makefile
  
  # PARISC Architecture
  
+Index: linux-2.6.23/drivers/char/Makefile
+===================================================================
+--- linux-2.6.23.orig/drivers/char/Makefile    2007-12-13 20:41:42.000000000 +0100
++++ linux-2.6.23/drivers/char/Makefile 2007-12-13 21:38:15.000000000 +0100
+@@ -135,3 +135,6 @@
+       rm $@.tmp
+ endif
++
++obj-$(CONFIG_DANUBE_LED)      += danube_led.o
++obj-$(CONFIG_DANUBE_GPIO)     += danube_gpio.o