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-rw-r--r--packages/linux/linux-ezx-2.6.21/ezx-bp.patch327
1 files changed, 327 insertions, 0 deletions
diff --git a/packages/linux/linux-ezx-2.6.21/ezx-bp.patch b/packages/linux/linux-ezx-2.6.21/ezx-bp.patch
new file mode 100644
index 0000000000..a8a7e08086
--- /dev/null
+++ b/packages/linux/linux-ezx-2.6.21/ezx-bp.patch
@@ -0,0 +1,327 @@
+Index: linux-2.6.21/arch/arm/mach-pxa/ezx.c
+===================================================================
+--- linux-2.6.21.orig/arch/arm/mach-pxa/ezx.c 2007-05-12 20:40:44.000000000 -0300
++++ linux-2.6.21/arch/arm/mach-pxa/ezx.c 2007-05-14 21:12:37.000000000 -0300
+@@ -100,9 +100,41 @@
+ .init = ezx_ohci_init,
+ };
+
++/* BP */
++static struct resource ezxbp_resources[] = {
++ [0] = {
++ .start = IRQ_GPIO(GPIO_BP_RDY),
++ .end = IRQ_GPIO(GPIO_BP_RDY),
++ .flags = IORESOURCE_IRQ,
++ },
++ [1] = {
++ .start = IRQ_GPIO(GPIO_BB_WDI2),
++ .end = IRQ_GPIO(GPIO_BB_WDI2),
++ .flags = IORESOURCE_IRQ,
++ },
++ [2] = {
++ .start = IRQ_GPIO(GPIO_BB_WDI),
++ .end = IRQ_GPIO(GPIO_BB_WDI),
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct platform_device ezxbp_device = {
++ .name = "ezx-bp",
++ .dev = {
++ //.parent =
++ //.platform_data =
++ },
++ .id = -1,
++ .num_resources = ARRAY_SIZE(ezxbp_resources),
++ .resource = ezxbp_resources,
++};
++
++
+
+ static struct platform_device *devices[] __initdata = {
+ &ezxssp_device,
++ &ezxbp_device,
+ };
+
+ static int __init ezx_init(void)
+Index: linux-2.6.21/arch/arm/mach-pxa/Kconfig
+===================================================================
+--- linux-2.6.21.orig/arch/arm/mach-pxa/Kconfig 2007-05-12 20:40:44.000000000 -0300
++++ linux-2.6.21/arch/arm/mach-pxa/Kconfig 2007-05-14 21:12:37.000000000 -0300
+@@ -94,6 +94,9 @@
+
+ endchoice
+
++config EZX_BP
++ bool "BP Control code for EZX Platform"
++
+ endif
+
+ endmenu
+Index: linux-2.6.21/arch/arm/mach-pxa/ezx-bp.c
+===================================================================
+--- /dev/null 1970-01-01 00:00:00.000000000 +0000
++++ linux-2.6.21/arch/arm/mach-pxa/ezx-bp.c 2007-05-12 21:28:07.000000000 -0300
+@@ -0,0 +1,250 @@
++/*
++ * BP handshake code for Motorola EZX phones
++ *
++ * Copyright (c) 2007 Daniel Ribeiro <drwyrm@gmail.com>
++ *
++ * Based on Motorola's a780.c Copyright (c) 2003-2005 Motorola
++ *
++ * 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/mach/irq.h>
++#include <asm/arch/hardware.h>
++#include <asm/arch/pxa-regs.h>
++
++#include <asm/arch/ezx.h>
++
++/* BP Handshake */
++#define FIRST_STEP 2
++#define LAST_STEP 3
++#define BP_RDY_TIMEOUT 0x000c0000
++
++#if 1
++#define DEBUGP(x, args ...) printk(x, ##args)
++#else
++#define DEBUGP(x, args ...)
++#endif
++
++struct bp {
++ int irq_wdi;
++ int irq_wdi2;
++ int irq_rdy;
++};
++
++/* check power down condition */
++static inline void check_power_off(void)
++{
++ if (pxa_gpio_get_value(GPIO_BB_WDI2) == 0) {
++ DEBUGP("BP request poweroff!\n");
++ pm_power_off();
++ }
++}
++
++static int step = FIRST_STEP;
++
++inline int bp_handshake_passed(void)
++{
++ return (step > LAST_STEP);
++}
++EXPORT_SYMBOL(bp_handshake_passed);
++
++void handshake(void)
++{
++ /* step 1: check MCU_INT_SW or BP_RDY is low (now it is checked in apboot) */
++ DEBUGP("bp handshake entered!\n");
++ if (step == 1) {
++ int timeout = BP_RDY_TIMEOUT;
++
++ /* config MCU_INT_SW, BP_RDY as input */
++ pxa_gpio_mode(GPIO_MCU_INT_SW | GPIO_IN);
++ pxa_gpio_mode(GPIO_BP_RDY | GPIO_IN);
++
++ while ( timeout -- ) {
++ if (pxa_gpio_get_value(GPIO_MCU_INT_SW) == 0
++ || pxa_gpio_get_value(GPIO_BP_RDY) == 0) {
++ step ++;
++ break;
++ }
++
++ check_power_off();
++ }
++ DEBUGP("ezx-bp: handshake step 1\n");
++ }
++
++ /* step 2: wait BP_RDY is low */
++ if (step == 2) {
++ if (pxa_gpio_get_value(GPIO_BP_RDY) == 0) {
++ /* config MCU_INT_SW as output */
++ pxa_gpio_mode(GPIO_MCU_INT_SW | GPIO_OUT);
++ pxa_gpio_set_value(GPIO_MCU_INT_SW, 0);
++
++ step ++;
++ DEBUGP("ezx-bp: handshake step 2\n");
++ }
++ }
++
++ /* step 3: wait BP_RDY is high */
++ else if (step == 3) {
++ if (pxa_gpio_get_value(GPIO_BP_RDY)) {
++ step ++;
++ //FIXME delay_bklight();
++ pxa_gpio_set_value(GPIO_MCU_INT_SW, 1);
++ printk(KERN_NOTICE "ezx-bp: handshake passed\n");
++ }
++ }
++}
++
++irqreturn_t bp_wdi_handler(int irq, void *dev_id)
++{
++ DEBUGP("BP Lowered WDI line. This is not good :(\n");
++ /*
++ * this means that BP is not responsive.
++ * we could try to reset BP and then handshake again
++ * but i doubt its possible to bring it up again.
++ */
++ return IRQ_HANDLED;
++}
++
++static irqreturn_t bp_rdy_handler(int irq, void *dev_id)
++{
++ struct bp *bp = dev_id;
++ DEBUGP("BP rdy irq\n");
++ if (!bp_handshake_passed()) {
++ handshake();
++ if (bp_handshake_passed()) {
++ disable_irq(bp->irq_wdi2);
++
++ /* set bp_rdy handle for usb ipc */
++ set_irq_type(bp->irq_rdy, IRQT_FALLING);
++ }
++ }
++#ifdef CONFIG_TS0710_MUX_USB
++ else usb_send_readurb();
++#endif
++ return IRQ_HANDLED;
++}
++
++/* BP request for poweroff */
++static irqreturn_t bp_wdi2_handler(int irq, void *dev_id)
++{
++ DEBUGP("BP request poweroff!\n");
++ pm_power_off();
++ return IRQ_HANDLED;
++}
++
++static int __init ezxbp_probe(struct platform_device *dev)
++{
++ int ret;
++ struct bp *bp;
++
++ bp = kzalloc(sizeof(*bp), GFP_KERNEL);
++ if (!bp)
++ return -ENOMEM;
++
++ bp->irq_rdy = platform_get_irq(dev, 0);
++ if(bp->irq_rdy < 0) {
++ ret = bp->irq_rdy;
++ goto fail;
++ }
++
++ bp->irq_wdi2 = platform_get_irq(dev, 1);
++ if(bp->irq_wdi2 < 0) {
++ ret = bp->irq_wdi2;
++ goto fail;
++ }
++
++ bp->irq_wdi = platform_get_irq(dev, 2);
++ if(bp->irq_wdi < 0) {
++ ret = bp->irq_wdi;
++ goto fail;
++ }
++
++ set_irq_type(bp->irq_wdi, IRQT_FALLING);
++ request_irq(bp->irq_wdi, bp_wdi_handler, SA_INTERRUPT,
++ "bp wdi", bp);
++
++ set_irq_type(bp->irq_rdy, IRQT_BOTHEDGE);
++ request_irq(bp->irq_rdy, bp_rdy_handler, SA_INTERRUPT,
++ "bp rdy", bp);
++
++ set_irq_type(bp->irq_wdi2, IRQT_FALLING);
++ request_irq(bp->irq_wdi2, bp_wdi2_handler, SA_INTERRUPT,
++ "bp wdi2", bp);
++
++ /* turn on BP */
++ pxa_gpio_mode(GPIO_BB_RESET|GPIO_OUT);
++ pxa_gpio_set_value(GPIO_BB_RESET, 1);
++
++ check_power_off();
++
++ handshake();
++
++ return 0;
++fail:
++ kfree(bp);
++ return ret;
++}
++
++static int ezxbp_remove(struct platform_device *dev)
++{
++ struct bp *bp = platform_get_drvdata(dev);
++
++ free_irq(bp->irq_wdi, bp);
++ free_irq(bp->irq_wdi2, bp);
++ free_irq(bp->irq_rdy, bp);
++ kfree(bp);
++
++ return 0;
++}
++
++static int ezxbp_suspend(struct platform_device *dev, pm_message_t state)
++{
++ DEBUGP("bp suspend!\n");
++// pxa_gpio_set_value(GPIO_MCU_INT_SW, 0);
++ return 0;
++}
++
++static int ezxbp_resume(struct platform_device *dev)
++{
++ DEBUGP("bp resume!\n");
++// pxa_gpio_set_value(GPIO_MCU_INT_SW, 1);
++ return 0;
++}
++static struct platform_driver ezxbp_driver = {
++ .probe = ezxbp_probe,
++ .remove = ezxbp_remove,
++#warning FIXME: missing suspend/resume support
++ .suspend = ezxbp_suspend,
++ .resume = ezxbp_resume,
++ .driver = {
++ .name = "ezx-bp",
++ .owner = THIS_MODULE,
++ },
++};
++
++int __init ezxbp_init(void)
++{
++ return platform_driver_register(&ezxbp_driver);
++}
++
++void ezxbp_fini(void)
++{
++ return platform_driver_unregister(&ezxbp_driver);
++}
++
++module_init(ezxbp_init);
++module_exit(ezxbp_fini);
++
++MODULE_DESCRIPTION("Motorola BP Control driver");
++MODULE_AUTHOR("Daniel Ribeiro <drwyrm@gmail.com>");
++MODULE_LICENSE("GPL");
++
+Index: linux-2.6.21/arch/arm/mach-pxa/Makefile
+===================================================================
+--- linux-2.6.21.orig/arch/arm/mach-pxa/Makefile 2007-05-12 20:40:44.000000000 -0300
++++ linux-2.6.21/arch/arm/mach-pxa/Makefile 2007-05-14 21:12:37.000000000 -0300
+@@ -22,6 +22,7 @@
+ obj-$(CONFIG_PXA_EZX_A780) += ezx-a780.o
+ obj-$(CONFIG_PXA_EZX_E680) += ezx-e680.o
+ obj-$(CONFIG_PXA_EZX_E2) += ezx-e2.o
++obj-$(CONFIG_EZX_BP) += ezx-bp.o
+
+ # Support for blinky lights
+ led-y := leds.o
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