add Exar vizzini driver version 0.76 with RS485 support patch

5 files changed, 181 insertions, 0 deletions

diff --git a/multitech/recipes/vizzini/files/vizzini.init b/multitech/recipes/vizzini/files/vizzini.init
new file mode 100644
index 0000000..b49473f
--- /dev/null
+++ b/multitech/recipes/vizzini/files/vizzini.init
@@ -0,0 +1,22 @@
+#!/bin/sh
+
+exit
+
+case $1 in
+  start)
+    echo "Loading vizzini module"
+    modprobe vizzini
+    ;;
+
+  stop)
+    echo "Unloading vizzini module"
+    modprobe -r vizzini
+    ;;
+
+  *)
+    echo "Usage: $0 {start|stop}"
+    exit 2
+    ;;
+esac
+
+
diff --git a/multitech/recipes/vizzini/vizzini-0.76/vizzini-0.76-rs485.patch b/multitech/recipes/vizzini/vizzini-0.76/vizzini-0.76-rs485.patch
new file mode 100644
index 0000000..e299b81
--- /dev/null
+++ b/multitech/recipes/vizzini/vizzini-0.76/vizzini-0.76-rs485.patch
@@ -0,0 +1,97 @@
+--- a/vizzini.c	2013-01-22 15:37:32.345592809 -0600
++++ b/vizzini.c	2013-01-29 14:27:04.550051817 -0600
+@@ -186,6 +186,7 @@
+ #ifdef VIZZINI_IWA
+         int           iwa;
+ #endif
++        struct serial_rs485 rs485;
+ };
+ 
+ 
+@@ -428,7 +429,41 @@
+ 	return -EINVAL;
+ }
+ 
++static int vizzini_set_rs485(struct usb_serial_port *port, struct serial_rs485 *rs485conf)
++{
++	struct vizzini_port_private *portdata = usb_get_serial_port_data(port);
++	int 		block 	= portdata->block;
++	int result = 0;
++	unsigned int gpio_mode, flow = 0;
++
++	portdata->rs485 = *rs485conf;
++
++	if (portdata->rs485.flags & SER_RS485_ENABLED) {
++		dev_info(&port->dev, "Enabling RS485");
++
++		/* enable auto tranceiver enable on transmit, TX active high */
++		gpio_mode = UART_GPIO_MODE_SEL_XCVR_EN_ACT | UART_GPIO_MODE_XCVR_EN_POL;
++
++		result = vizzini_set_reg(port, block, UART_GPIO_MODE, gpio_mode);
+ 
++		if (result < 0)
++			dev_err(&port->dev, "Error setting auto trans enable");
++
++		/* half duplex rs485 */
++		flow = UART_FLOW_HALF_DUPLEX;
++		result = vizzini_set_reg(port, block, UART_FLOW, flow);
++
++		if (result < 0)
++			dev_err(&port->dev, "Error setting half duplex");
++	}
++	else {
++		dev_info(&port->dev, "Disabling RS485 - flow control off");
++        	vizzini_set_reg(port, block, UART_GPIO_MODE, UART_GPIO_MODE_SEL_GPIO);
++        	vizzini_set_reg(port, block, UART_FLOW, UART_FLOW_MODE_NONE);
++	}
++	
++	return 0;
++}
+ 
+ static void vizzini_set_termios(struct tty_struct *tty_param,
+                                 struct usb_serial_port *port,
+@@ -604,6 +639,7 @@
+         char                    *data;
+         int                      result;
+         struct serial_struct     ss;
++        struct serial_rs485      rs485conf;
+ 
+         if (debug) dev_dbg(&port->dev, "%s %08x\n", __func__, cmd);
+ 
+@@ -636,6 +672,36 @@
+ /*      mutex_unlock(&config_mutex); */
+                 break;
+ 
++        case TIOCGRS485:
++                if (!arg) {
++                        dev_err(&port->dev, "%s - TIOCGRS485 arg invalid\n", __func__);
++                        return -EFAULT;
++		}
++                if (copy_to_user((struct serial_rs485 *) arg,
++                        &(portdata->rs485),
++                        sizeof(struct serial_rs485))) {
++                        dev_err(&port->dev, "%s - TIOCGRS485 copy_to_user fail\n", __func__);
++                        return -EFAULT;
++                }
++                break;
++
++        case TIOCSRS485:
++        	dev_dbg(&port->dev, "%s TIOCSRS485\n", __func__);
++                if (!arg) {
++                        return -EFAULT;
++                        dev_err(&port->dev, "%s - TIOCSRS485 arg invalid\n", __func__);
++		}
++                if (copy_from_user(&rs485conf, (struct serial_rs485 *) arg,
++                        sizeof(rs485conf))) {
++                        dev_err(&port->dev, "%s - TIOCSRS485 copy_from_user fail\n", __func__);
++                        return -EFAULT;
++                }
++
++                vizzini_disable(port);
++                vizzini_set_rs485(port, &rs485conf);
++                vizzini_enable(port);
++                break;
++
+         case VZIOC_GET_REG:
+                 if (get_user(block, (int __user *)arg))
+                         return -EFAULT;
diff --git a/multitech/recipes/vizzini/vizzini-0.76/xr21v141x-lnx-3.0-pak.tar.gz b/multitech/recipes/vizzini/vizzini-0.76/xr21v141x-lnx-3.0-pak.tar.gz
new file mode 100644
index 0000000..3d10bac
--- /dev/null
+++ b/multitech/recipes/vizzini/vizzini-0.76/xr21v141x-lnx-3.0-pak.tar.gz
diff --git a/multitech/recipes/vizzini/vizzini.inc b/multitech/recipes/vizzini/vizzini.inc
new file mode 100644
index 0000000..6ceaeb9
--- /dev/null
+++ b/multitech/recipes/vizzini/vizzini.inc
@@ -0,0 +1,52 @@
+DESCRIPTION = "USB Driver for Exar USB UARTs"
+HOMEPAGE = "http://www.exar.com/connectivity/uart-and-bridging-solutions/usb-uarts/xr21v1414"
+SECTION = "base"
+PRIORITY = "optional"
+LICENSE = "GPL"
+DEPENDS = "virtual/kernel"
+RDEPENDS = "kernel (${KERNEL_VERSION})"
+INC_PR = "r1"
+
+SRC_URI = " \
+    file://vizzini.init \
+"
+
+inherit module-base
+inherit update-rc.d
+
+EXTRA_OEMAKE = " -C ${STAGING_KERNEL_DIR} \
+                M=${S} \
+                modules \
+                "
+
+do_configure () {
+   echo "Nothing to configure for vizzini"
+}
+
+do_compile () {
+    unset CFLAGS CPPFLAGS CXXFLAGS LDFLAGS
+    oe_runmake
+}
+
+PACKAGES = "${PN}"
+
+FILES_${PN} = "${base_libdir}/modules/${KERNEL_VERSION}/extra/vizzini.ko"
+FILES_${PN} += "${sysconfdir}/init.d/vizzini"
+
+INITSCRIPT_NAME = "vizzini"
+INITSCRIPT_PARAMS = "start 90 S ."
+
+PARALLEL_MAKE = ""
+
+fakeroot do_install () {
+    install -m 0755 -d ${D}${base_libdir}/modules/${KERNEL_VERSION}/extra
+    # use cp instead of install so the driver doesn't get stripped
+    cp ${S}/vizzini.ko ${D}${base_libdir}/modules/${KERNEL_VERSION}/extra
+    cp ${S}/vizzini.h ${STAGING_KERNEL_DIR}/include/linux/
+    cp ${S}/vizzini.h ${STAGING_INCDIR}/linux/
+    cp ${S}/vzioctl.h ${STAGING_KERNEL_DIR}/include/linux/
+    cp ${S}/vzioctl.h ${STAGING_INCDIR}/linux/
+
+    install -d ${D}${sysconfdir}/init.d
+    install -m 0755 ${WORKDIR}/vizzini.init ${D}${sysconfdir}/init.d/vizzini
+}
diff --git a/multitech/recipes/vizzini/vizzini_0.76.bb b/multitech/recipes/vizzini/vizzini_0.76.bb
new file mode 100644
index 0000000..ff1f421
--- /dev/null
+++ b/multitech/recipes/vizzini/vizzini_0.76.bb
@@ -0,0 +1,10 @@
+require vizzini.inc
+
+LOCAL_PR = "${INC_PR}.0"
+MACHINE_KERNEL_PR_append = "${LOCAL_PR}"
+
+SRC_URI += "file://xr21v141x-lnx-3.0-pak.tar.gz \
+			file://vizzini-0.76-rs485.patch \
+			"
+S = "${WORKDIR}/xr21v141x-lnx-3.0-pak"
+