initial commit with MTCDT support

6 files changed, 214 insertions, 0 deletions

diff --git a/recipes-kernel/vizzini/files/vizzini.init b/recipes-kernel/vizzini/files/vizzini.init
new file mode 100644
index 0000000..b49473f
--- /dev/null
+++ b/recipes-kernel/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/recipes-kernel/vizzini/kernel-module-vizzini-1.1/vizzini-1.1-enable-cts.patch b/recipes-kernel/vizzini/kernel-module-vizzini-1.1/vizzini-1.1-enable-cts.patch
new file mode 100644
index 0000000..12e6d04
--- /dev/null
+++ b/recipes-kernel/vizzini/kernel-module-vizzini-1.1/vizzini-1.1-enable-cts.patch
@@ -0,0 +1,32 @@
+Index: xr21v141x-lnx3.10-3.11/vizzini.c
+===================================================================
+--- xr21v141x-lnx3.10-3.11.orig/vizzini.c	2014-04-04 19:58:55.000000000 -0500
++++ xr21v141x-lnx3.10-3.11/vizzini.c	2014-04-16 15:05:16.470621233 -0500
+@@ -61,6 +61,9 @@
+ #define DRIVER_AUTHOR "Ravi Reddy"
+ #define DRIVER_DESC "Exar USB UART Driver for XR21V141x "
+ 
++#define UART_PIN_RTS   0x020
++#define UART_GPIO_DIR  0x01b
++
+ static struct usb_driver xr21v141x_driver;
+ static struct tty_driver *xr21v141x_tty_driver;
+ static struct xr21v141x *xr21v141x_table[XR21V141X_TTY_MINORS];
+@@ -1172,6 +1175,17 @@
+         vizzini_set_reg(xr21v141x, block, UART_FLOW, flow);
+         vizzini_set_reg(xr21v141x, block, UART_GPIO_MODE, gpio_mode);
+ 
++	/* if flow control hasn't been turned on, enable RTS for modem-like functionality */
++	if (flow == UART_FLOW_MODE_NONE) {
++	    char value;
++	    vizzini_get_reg(xr21v141x, block, UART_GPIO_DIR, &value);
++	    value |= UART_PIN_RTS;
++	    vizzini_set_reg(xr21v141x, block, UART_GPIO_DIR, value);
++	    vizzini_get_reg(xr21v141x, block, UART_GPIO_CLR, &value);
++	    value |= UART_PIN_RTS;
++	    vizzini_set_reg(xr21v141x, block, UART_GPIO_CLR, value);
++	}
++
+         if (xr21v141x->trans9) {
+                 /* Turn on wide mode if we're 9-bit transparent. */
+                 vizzini_set_reg(xr21v141x, EPLOCALS_REG_BLOCK, (block * MEM_EP_LOCALS_SIZE) + EP_WIDE_MODE, 1);
diff --git a/recipes-kernel/vizzini/kernel-module-vizzini-1.1/vizzini-1.1-rs485.patch b/recipes-kernel/vizzini/kernel-module-vizzini-1.1/vizzini-1.1-rs485.patch
new file mode 100644
index 0000000..6833e5b
--- /dev/null
+++ b/recipes-kernel/vizzini/kernel-module-vizzini-1.1/vizzini-1.1-rs485.patch
@@ -0,0 +1,102 @@
+Index: xr21v141x-lnx3.10-3.11/vizzini.c
+===================================================================
+--- xr21v141x-lnx3.10-3.11.orig/vizzini.c	2014-05-02 12:20:07.972225646 -0500
++++ xr21v141x-lnx3.10-3.11/vizzini.c	2014-05-07 13:53:08.125405483 -0500
+@@ -892,6 +892,35 @@
+         dev_dbg(&xr21v141x->control->dev, "vz_test_mode: selector=0x%02x\n", selector);
+         return retval < 0 ? retval : 0;
+ }
++static int xr21v141x_set_rs485(struct xr21v141x *xr21v141x, struct serial_rs485 *rs485conf) {
++	int block = xr21v141x->block;
++	int result = 0;
++	unsigned int gpio_mode, flow = 0;
++
++	xr21v141x->rs485 = *rs485conf;
++
++	if (xr21v141x->rs485.flags & SER_RS485_ENABLED) {
++		dev_info(&xr21v141x->control->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(xr21v141x, block, UART_GPIO_MODE, gpio_mode);
++		if (result < 0)
++			dev_err(&xr21v141x->control->dev, "Error setting auto trans enable");
++
++		/* half duplex rs485 */
++		flow = UART_FLOW_HALF_DUPLEX;
++		result = vizzini_set_reg(xr21v141x, block, UART_FLOW, flow);
++		if (result < 0)
++			dev_err(&xr21v141x->control->dev, "Error setting half duplex");
++	} else {
++		dev_info(&xr21v141x->control->dev, "Disabling RS485 - flow control off");
++		vizzini_set_reg(xr21v141x, block, UART_GPIO_MODE, UART_GPIO_MODE_SEL_GPIO);
++		vizzini_set_reg(xr21v141x, block, UART_FLOW, UART_FLOW_MODE_NONE);
++	}
++
++	return 0;
++}
+ 
+ static int xr21v141x_tty_ioctl(struct tty_struct *tty,
+ 					unsigned int cmd, unsigned long arg)
+@@ -902,6 +931,8 @@
+ 	unsigned int  block, reg, val, match, preciseflags, unicast, broadcast, flow, selector;
+         char	*data;
+ 
++	struct serial_rs485 rs485conf;
++
+ 	switch (cmd) {
+ 	case TIOCGSERIAL: /* gets serial port data */
+ 		rv = get_serial_info(xr21v141x, (struct serial_struct __user *) arg);
+@@ -910,6 +941,39 @@
+ 		rv = set_serial_info(xr21v141x, (struct serial_struct __user *) arg);
+ 		break;
+ 
++	case TIOCGRS485:
++		if (! arg) {
++			dev_err(&xr21v141x->control->dev, "%s - TIOCGRS485 arg invalid\n", __func__);
++			rv = -EFAULT;
++			break;
++		}
++
++		if (copy_to_user((struct serial_rs485 *) arg, &(xr21v141x->rs485), sizeof(struct serial_rs485))) {
++			dev_err(&xr21v141x->control->dev, "%s - TIOCGRS485 copy_to_user fail\n", __func__);
++			rv = -EFAULT;
++			break;
++		}
++		rv = 0;
++		break;
++
++	case TIOCSRS485:
++		if (! arg) {
++			dev_err(&xr21v141x->control->dev, "%s - TIOCSRS485 arg invalid\n", __func__);
++			rv = -EFAULT;
++			break;
++		}
++
++		if (copy_from_user(&rs485conf, (struct serial_rs485 *) arg, sizeof(rs485conf))) {
++			dev_err(&xr21v141x->control->dev, "%s - TIOCSRS485 copy_from_user failed\n", __func__);
++			rv = -EFAULT;
++			break;
++		}
++
++		vizzini_disable(xr21v141x);
++		rv = xr21v141x_set_rs485(xr21v141x, &rs485conf);
++		vizzini_enable(xr21v141x);
++		break;
++
+         case VZIOC_GET_REG:
+                 if (get_user(block, (int __user *)arg))
+                         return -EFAULT;
+Index: xr21v141x-lnx3.10-3.11/vizzini.h
+===================================================================
+--- xr21v141x-lnx3.10-3.11.orig/vizzini.h	2014-04-04 19:59:33.000000000 -0500
++++ xr21v141x-lnx3.10-3.11/vizzini.h	2014-05-02 12:20:08.028225647 -0500
+@@ -282,7 +282,7 @@
+ #ifdef VIZZINI_IWA
+         int           iwa;
+ #endif
+-
++	struct serial_rs485 rs485;
+ };
+ 
+ #define CDC_DATA_INTERFACE_TYPE	0x0a
diff --git a/recipes-kernel/vizzini/kernel-module-vizzini-1.1/xr21v141x-lnx3.10-3.11.tar.gz b/recipes-kernel/vizzini/kernel-module-vizzini-1.1/xr21v141x-lnx3.10-3.11.tar.gz
new file mode 100644
index 0000000..2bc7355
--- /dev/null
+++ b/recipes-kernel/vizzini/kernel-module-vizzini-1.1/xr21v141x-lnx3.10-3.11.tar.gz
diff --git a/recipes-kernel/vizzini/kernel-module-vizzini_1.1.bb b/recipes-kernel/vizzini/kernel-module-vizzini_1.1.bb
new file mode 100644
index 0000000..beab42f
--- /dev/null
+++ b/recipes-kernel/vizzini/kernel-module-vizzini_1.1.bb
@@ -0,0 +1,10 @@
+require vizzini.inc
+
+PR = "${INC_PR}.1"
+
+SRC_URI += "file://xr21v141x-lnx3.10-3.11.tar.gz \
+			file://vizzini-1.1-enable-cts.patch \
+			file://vizzini-1.1-rs485.patch \
+			"
+S = "${WORKDIR}/xr21v141x-lnx3.10-3.11"
+
diff --git a/recipes-kernel/vizzini/vizzini.inc b/recipes-kernel/vizzini/vizzini.inc
new file mode 100644
index 0000000..def3f1b
--- /dev/null
+++ b/recipes-kernel/vizzini/vizzini.inc
@@ -0,0 +1,48 @@
+DESCRIPTION = "USB Driver for Exar USB UARTs"
+HOMEPAGE = "http://www.exar.com/connectivity/uart-and-bridging-solutions/usb-uarts/xr21v1414"
+SECTION = "base"
+PRIORITY = "optional"
+LICENSE = "GPLv2+"
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/GPL-2.0;md5=801f80980d171dd6425610833a22dbe6"
+
+INC_PR = "r1"
+
+SRC_URI = " \
+    file://vizzini.init \
+"
+
+inherit module
+inherit update-rc.d
+
+EXTRA_OEMAKE = " -C ${STAGING_KERNEL_DIR} \
+                M=${S} \
+                modules \
+                "
+
+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 = ""
+
+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
+}