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Index: linux-2.6.23/arch/arm/mach-pxa/ezx-emu.c
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.23/arch/arm/mach-pxa/ezx-emu.c 2007-10-23 15:57:50.000000000 +0200
@@ -0,0 +1,219 @@
+/*
+ * EMU Driver for Motorola EZX phones
+ *
+ * Copyright (c) 2007 Daniel Ribeiro <drwyrm@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+
+#include <asm/arch/hardware.h>
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/ezx.h>
+#include <asm/arch/ezx-pcap.h>
+#include <asm/arch/udc.h>
+
+static struct pxa2xx_udc_mach_info ezx_udc_info;
+extern int ezx_pcap_bit_set(u_int32_t, u_int8_t);
+extern int ezx_pcap_read_bit(u_int32_t);
+static int emu_irq_usb4v;
+static int emu_irq_usb1v;
+
+
+#if defined CONFIG_EZX_EMU_USB
+#define emu_switch_to_default() emu_switch_to_usb()
+#elif defined CONFIG_EZX_EMU_UART
+#define emu_switch_to_default() emu_switch_to_uart()
+#else
+#define emu_switch_to_default() emu_switch_to_nothing()
+#endif
+
+void emu_switch_to_usb(void)
+{
+ printk(KERN_NOTICE "EMU: Switching to USB\n");
+ pxa_gpio_mode(GPIO34_USB_P2_2_MD);
+ pxa_gpio_mode(GPIO35_USB_P2_1_MD);
+ pxa_gpio_mode(GPIO36_USB_P2_4_MD);
+ pxa_gpio_mode(GPIO39_USB_P2_6_MD);
+ pxa_gpio_mode(GPIO40_USB_P2_5_MD);
+ pxa_gpio_mode(GPIO53_USB_P2_3_MD);
+ UP2OCR = 0x02000000;
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_RS232ENB, 1);
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_FSENB, 0);
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_VUSB_EN, 1);
+ clr_GPIO(GPIO_EMU_MUX1);
+ clr_GPIO(GPIO_EMU_MUX2);
+}
+
+void emu_switch_to_uart(void)
+{
+ printk(KERN_NOTICE "EMU: Switching to UART\n");
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_VUSB_EN,0);
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_RS232ENB, 0);
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_RS232_DIR, 1);
+ set_GPIO(GPIO39_FFTXD);
+ pxa_gpio_mode(GPIO34_TXENB | GPIO_OUT);
+ set_GPIO(GPIO34_TXENB);
+ pxa_gpio_mode(GPIO35_XRXD | GPIO_IN);
+ pxa_gpio_mode(GPIO36_VMOUT | GPIO_IN);
+ pxa_gpio_mode(GPIO40_VPIN | GPIO_IN);
+ pxa_gpio_mode(GPIO39_FFTXD_MD);
+ pxa_gpio_mode(GPIO53_FFRXD_MD);
+ pxa_set_cken(CKEN_FFUART, 1);
+ clr_GPIO(GPIO_EMU_MUX1);
+ clr_GPIO(GPIO_EMU_MUX2);
+
+}
+
+void emu_switch_to_audio(int stereo)
+{
+ printk(KERN_NOTICE "EMU: Switching to audio(%s)\n", (stereo ? "stereo" : "mono"));
+ clr_GPIO(GPIO39_VPOUT);
+ if (stereo) {
+ pxa_gpio_mode(GPIO34_TXENB | GPIO_IN);
+ clr_GPIO(GPIO39_VPOUT);
+ } else {
+ pxa_gpio_mode(GPIO34_TXENB | GPIO_OUT);
+ set_GPIO(GPIO34_TXENB);
+ }
+
+ pxa_gpio_mode(GPIO35_XRXD | GPIO_IN);
+ pxa_gpio_mode(GPIO36_VMOUT | GPIO_IN);
+ pxa_gpio_mode(GPIO39_VPOUT | GPIO_IN);
+ pxa_gpio_mode(GPIO40_VPIN | GPIO_IN);
+ pxa_gpio_mode(GPIO53_VMIN | GPIO_IN);
+ set_GPIO(GPIO_EMU_MUX1);
+ if (stereo)
+ set_GPIO(GPIO_EMU_MUX2);
+ else
+ clr_GPIO(GPIO_EMU_MUX2);
+}
+
+void emu_switch_to_nothing(void)
+{
+ printk(KERN_NOTICE "EMU: Switching to disconnected\n");
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_VUSB_EN, 0);
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_RS232ENB, 1);
+ pxa_gpio_mode(GPIO34_TXENB | GPIO_OUT);
+ set_GPIO(GPIO34_TXENB);
+ pxa_gpio_mode(GPIO35_XRXD | GPIO_IN);
+ pxa_gpio_mode(GPIO36_VMOUT | GPIO_IN);
+ pxa_gpio_mode(GPIO39_VPOUT | GPIO_IN);
+ pxa_gpio_mode(GPIO40_VPIN | GPIO_IN);
+ pxa_gpio_mode(GPIO53_VMIN | GPIO_IN);
+}
+
+
+static irqreturn_t emu_irq(int irq, void *data)
+{
+ switch (irq) {
+ case EZX_IRQ_USB4V:
+ if(ezx_pcap_read_bit(pbit(PCAP_REG_PSTAT, PCAP_IRQ_USB4V)))
+ emu_switch_to_default();
+ break;
+ case EZX_IRQ_USB1V:
+ if(!ezx_pcap_read_bit(pbit(PCAP_REG_PSTAT, PCAP_IRQ_USB1V)))
+ emu_switch_to_nothing();
+ break;
+ }
+
+ return IRQ_HANDLED;
+}
+
+static int __init ezx_emu_probe(struct platform_device *dev)
+{
+ pxa_gpio_mode(GPIO_SNP_INT_IN | GPIO_IN);
+ pxa_gpio_mode(GPIO_EMU_MUX1 | GPIO_OUT);
+ pxa_gpio_mode(GPIO_EMU_MUX2 | GPIO_OUT);
+
+ emu_irq_usb4v = platform_get_irq(dev, 0);
+ if(emu_irq_usb4v < 0) {
+ printk(KERN_ERR "Unable to get IRQ for USB4V!\n");
+ return emu_irq_usb4v;
+ }
+ emu_irq_usb1v = platform_get_irq(dev, 1);
+ if(emu_irq_usb1v < 0) {
+ printk(KERN_ERR "Unable to get IRQ for USB1V!\n");
+ return emu_irq_usb1v;
+ }
+
+ request_irq(emu_irq_usb4v, &emu_irq, IRQF_DISABLED, "usb 4v", NULL);
+ request_irq(emu_irq_usb1v, &emu_irq, IRQF_DISABLED, "usb 1v", NULL);
+
+ pxa_set_udc_info(&ezx_udc_info);
+
+ if(ezx_pcap_read_bit(pbit(PCAP_REG_PSTAT, PCAP_IRQ_USB4V)))
+ emu_switch_to_default();
+ else
+ emu_switch_to_nothing();
+
+ return 0;
+}
+
+static int ezx_emu_remove(struct platform_device *dev)
+{
+ free_irq(emu_irq_usb4v, NULL);
+ free_irq(emu_irq_usb1v, NULL);
+
+ return 0;
+}
+
+/* USB Device Controller */
+static int udc_connected_status;
+static void ezx_udc_command(int cmd)
+{
+ switch (cmd) {
+ case PXA2XX_UDC_CMD_DISCONNECT:
+ printk(KERN_NOTICE "USB cmd disconnect\n");
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_USB_PU,0);
+ udc_connected_status = 0;
+ break;
+ case PXA2XX_UDC_CMD_CONNECT:
+ printk(KERN_NOTICE "USB cmd connect\n");
+ ezx_pcap_bit_set(PCAP_BIT_BUSCTRL_USB_PU,1);
+ udc_connected_status = 1;
+ break;
+ }
+}
+
+static int ezx_udc_is_connected(void)
+{
+ return udc_connected_status;
+}
+
+static struct pxa2xx_udc_mach_info ezx_udc_info __initdata = {
+ .udc_is_connected = ezx_udc_is_connected,
+ .udc_command = ezx_udc_command,
+};
+
+static struct platform_driver ezxemu_driver = {
+ .probe = ezx_emu_probe,
+ .remove = ezx_emu_remove,
+ .driver = {
+ .name = "ezx-emu",
+ .owner = THIS_MODULE,
+ },
+};
+
+int __init ezx_emu_init(void)
+{
+ return platform_driver_register(&ezxemu_driver);
+}
+
+void ezx_emu_fini(void)
+{
+ return platform_driver_unregister(&ezxemu_driver);
+}
+
+module_init(ezx_emu_init);
+module_exit(ezx_emu_fini);
+
+MODULE_DESCRIPTION("Motorola Enchanced Mini Usb driver");
+MODULE_AUTHOR("Daniel Ribeiro <drwyrm@gmail.com>");
+MODULE_LICENSE("GPL");
Index: linux-2.6.23/arch/arm/mach-pxa/Kconfig
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/Kconfig 2007-10-23 15:38:53.000000000 +0200
+++ linux-2.6.23/arch/arm/mach-pxa/Kconfig 2007-10-23 18:00:57.000000000 +0200
@@ -112,6 +112,28 @@
config EZX_PCAP
bool "PCAP Support"
+config EZX_EMU
+ bool "Motorola Enchanced Mini Usb"
+ depends on EZX_PCAP
+
+if EZX_EMU
+
+choice
+ prompt "Select default EMU mode"
+
+config EZX_EMU_USB
+ bool "USB"
+
+config EZX_EMU_UART
+ bool "UART"
+
+config EZX_EMU_NOTHING
+ bool "nothing"
+
+endchoice
+
+endif
+
endif
endmenu
Index: linux-2.6.23/arch/arm/mach-pxa/Makefile
===================================================================
--- linux-2.6.23.orig/arch/arm/mach-pxa/Makefile 2007-10-23 15:38:53.000000000 +0200
+++ linux-2.6.23/arch/arm/mach-pxa/Makefile 2007-10-23 18:00:57.000000000 +0200
@@ -27,6 +27,7 @@
obj-$(CONFIG_PXA_EZX_E6) += ezx-e6.o
obj-$(CONFIG_EZX_BP) += ezx-bp.o
obj-$(CONFIG_EZX_PCAP) += ezx-pcap.o
+obj-$(CONFIG_EZX_EMU) += ezx-emu.o
# Support for blinky lights
led-y := leds.o
|
