+++ /dev/null
-/*
- * Copyright (C) 2010 ROCKCHIP, Inc.
- * Author: roger_chen <cz@rock-chips.com>
- *
- * This program is the bluetooth device bcm4329's driver,
- *
- */
-
-#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/module.h>
-#include <linux/device.h>
-#include <linux/rfkill.h>
-#include <linux/delay.h>
-#include <linux/i2c.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/interrupt.h>
-#include <linux/wakelock.h>
-#include <linux/fs.h>
-#include <asm/uaccess.h>
-#include <mach/gpio.h>
-#include <asm/irq.h>
-#include <mach/iomux.h>
-#include <linux/wakelock.h>
-#include <linux/timer.h>
-#include <mach/board.h>
-
-#if 0
-#define DBG(x...) printk(KERN_INFO "[BT_RFKILL]: "x)
-#else
-#define DBG(x...)
-#endif
-
-#define LOG(x...) printk(KERN_INFO "[BT_RFKILL]: "x)
-
-#ifdef CONFIG_BCM4329
-#define WIFI_BT_POWER_TOGGLE 1
-#else
-#define WIFI_BT_POWER_TOGGLE 0
-#endif
-
-#define BT_WAKE_LOCK_TIMEOUT 10 //s
-
-#define BT_AUTO_SLEEP_TIMEOUT 3
-
-/*
- * IO Configuration for RK29
- */
-#ifdef CONFIG_ARCH_RK29
-
-#define BT_WAKE_HOST_SUPPORT 0
-
-/* IO configuration */
-// BT power pin
-#define BT_GPIO_POWER RK29_PIN5_PD6
-#define IOMUX_BT_GPIO_POWER() rk29_mux_api_set(GPIO5D6_SDMMC1PWREN_NAME, GPIO5H_GPIO5D6);
-
-// BT reset pin
-#define BT_GPIO_RESET RK29_PIN6_PC4
-#define IOMUX_BT_GPIO_RESET()
-
-// BT wakeup pin
-#define BT_GPIO_WAKE_UP RK29_PIN6_PC5
-#define IOMUX_BT_GPIO_WAKE_UP()
-
-// BT wakeup host pin
-#define BT_GPIO_WAKE_UP_HOST
-#define IOMUX_BT_GPIO_WAKE_UP_HOST()
-
-//bt cts paired to uart rts
-#define UART_RTS RK29_PIN2_PA7
-#define IOMUX_UART_RTS_GPIO() rk29_mux_api_set(GPIO2A7_UART2RTSN_NAME, GPIO2L_GPIO2A7)
-#define IOMUX_UART_RTS() rk29_mux_api_set(GPIO2A7_UART2RTSN_NAME, GPIO2L_UART2_RTS_N)
-
-/*
- * IO Configuration for RK30
- */
-#elif defined (CONFIG_ARCH_RK30)
-
-#define BT_WAKE_HOST_SUPPORT 1
-
-/* IO configuration */
-// BT power pin
-#define BT_GPIO_POWER RK30_PIN3_PC7
-#define IOMUX_BT_GPIO_POWER() rk29_mux_api_set(GPIO3C7_SDMMC1WRITEPRT_NAME, GPIO3C_GPIO3C7);
-
-// BT reset pin
-#define BT_GPIO_RESET RK30_PIN3_PD1
-#define IOMUX_BT_GPIO_RESET() rk29_mux_api_set(GPIO3D1_SDMMC1BACKENDPWR_NAME, GPIO3D_GPIO3D1);
-
-// BT wakeup pin
-#define BT_GPIO_WAKE_UP RK30_PIN3_PC6
-#define IOMUX_BT_GPIO_WAKE_UP() rk29_mux_api_set(GPIO3C6_SDMMC1DETECTN_NAME, GPIO3C_GPIO3C6);
-
-// BT wakeup host pin
-#define BT_GPIO_WAKE_UP_HOST RK30_PIN6_PA7
-#define BT_IRQ_WAKE_UP_HOST gpio_to_irq(BT_GPIO_WAKE_UP_HOST)
-#define IOMUX_BT_GPIO_WAKE_UP_HOST()
-
-//bt cts paired to uart rts
-#define UART_RTS RK30_PIN1_PA3
-#define IOMUX_UART_RTS_GPIO() rk29_mux_api_set(GPIO1A3_UART0RTSN_NAME, GPIO1A_GPIO1A3)
-#define IOMUX_UART_RTS() rk29_mux_api_set(GPIO1A3_UART0RTSN_NAME, GPIO1A_UART0_RTS_N)
-
-#endif
-
-struct bt_ctrl
-{
- struct rfkill *bt_rfk;
-#if BT_WAKE_HOST_SUPPORT
- struct timer_list tl;
- bool b_HostWake;
- struct wake_lock bt_wakelock;
-#endif
-};
-
-static const char bt_name[] =
-#if defined(CONFIG_RKWIFI)
- #if defined(CONFIG_RKWIFI_26M)
- "rk903_26M"
- #else
- "rk903"
- #endif
-#elif defined(CONFIG_BCM4329)
- "bcm4329"
-#elif defined(CONFIG_MV8787)
- "mv8787"
-#else
- "bt_default"
-#endif
-;
-
-#if WIFI_BT_POWER_TOGGLE
-extern int rk29sdk_bt_power_state;
-extern int rk29sdk_wifi_power_state;
-#endif
-
-struct bt_ctrl gBtCtrl;
-struct timer_list bt_sleep_tl;
-
-void bcm4325_sleep(unsigned long bSleep);
-
-#if BT_WAKE_HOST_SUPPORT
-void resetBtHostSleepTimer(void)
-{
- mod_timer(&(gBtCtrl.tl),jiffies + BT_WAKE_LOCK_TIMEOUT*HZ);//ÔÙÖØÐÂÉèÖó¬Ê±Öµ¡£
-}
-
-void btWakeupHostLock(void)
-{
- if(gBtCtrl.b_HostWake == false){
- DBG("** Lock **\n");
- wake_lock(&(gBtCtrl.bt_wakelock));
- gBtCtrl.b_HostWake = true;
- }
-}
-
-void btWakeupHostUnlock(void)
-{
- if(gBtCtrl.b_HostWake == true){
- DBG("** UnLock **\n");
- wake_unlock(&(gBtCtrl.bt_wakelock)); //ÈÃϵͳ˯Ãß
- gBtCtrl.b_HostWake = false;
- }
-}
-
-static void timer_hostSleep(unsigned long arg)
-{
- DBG("b_HostWake=%d\n", gBtCtrl.b_HostWake);
- btWakeupHostUnlock();
-}
-
-#ifdef CONFIG_PM
-static irqreturn_t bcm4329_wake_host_irq(int irq, void *dev)
-{
- DBG("%s\n",__FUNCTION__);
-
- btWakeupHostLock();
- resetBtHostSleepTimer();
- return IRQ_HANDLED;
-}
-
-static void rfkill_do_wakeup(struct work_struct *work)
-{
- // disable bt wakeup host
- DBG("** free irq\n");
- free_irq(BT_IRQ_WAKE_UP_HOST, NULL);
-
- DBG("Enable UART_RTS\n");
- gpio_set_value(UART_RTS, GPIO_LOW);
- IOMUX_UART_RTS();
-}
-
-static DECLARE_DELAYED_WORK(wakeup_work, rfkill_do_wakeup);
-
-static int bcm4329_rfkill_suspend(struct platform_device *pdev, pm_message_t state)
-{
- DBG("%s\n",__FUNCTION__);
-
- cancel_delayed_work(&wakeup_work);
-
-#ifdef CONFIG_BT_AUTOSLEEP
- bcm4325_sleep(1);
-#endif
-
- DBG("Disable UART_RTS\n");
- //To prevent uart to receive bt data when suspended
- IOMUX_UART_RTS_GPIO();
- gpio_request(UART_RTS, "uart_rts");
- gpio_set_value(UART_RTS, GPIO_HIGH);
-
- // enable bt wakeup host
- DBG("Request irq for bt wakeup host\n");
- if (0 == request_irq(BT_IRQ_WAKE_UP_HOST,
- bcm4329_wake_host_irq,
- IRQF_TRIGGER_FALLING,
- "bt_wake",
- NULL))
- enable_irq_wake(BT_IRQ_WAKE_UP_HOST);
- else
- LOG("Failed to request BT_WAKE_UP_HOST irq\n");
-
-#ifdef CONFIG_RFKILL_RESET
- extern void rfkill_set_block(struct rfkill *rfkill, bool blocked);
- rfkill_set_block(gBtCtrl.bt_rfk, true);
-#endif
-
- return 0;
-}
-
-static int bcm4329_rfkill_resume(struct platform_device *pdev)
-{
- DBG("%s\n",__FUNCTION__);
-
- // ϵͳÍ˳ö¶þ¼¶Ë¯ÃߺóÐèÒªÀµÍRTS£¬´Ó¶ø²ÅÔÊÐíBT·¢Êý¾Ý¹ýÀ´
- // µ«ÊÇÄ¿Ç°·¢ÏÖÔÚresumeº¯ÊýÖÐÖ±½ÓÀµÍRTS»áµ¼ÖÂBTÊý¾Ý¶ªÊ§
- // ËùÒÔÑÓ³Ù1sºóÔÙÀµÍRTS
- // ϵͳÍ˳ö¶þ¼¶Ë¯ÃßʱÊͷŵôBT_IRQ_WAKE_UP_HOST£¬ÔÚ˯ÃßʱºòÔÙ
- // ´ÎÉêÇ룬Ŀǰ·¢ÏÖÖжϻص÷º¯Êý±Èresume¸üÍíÖ´ÐУ¬Èç¹ûresume
- // ʱֱ½ÓfreeµôIRQ£¬»áµ¼ÖÂÖжϻص÷º¯Êý²»»á±»Ö´ÐУ¬
- DBG("delay 1s\n");
- schedule_delayed_work(&wakeup_work, HZ);
-
- return 0;
-}
-#else
-#define bcm4329_rfkill_suspend NULL
-#define bcm4329_rfkill_resume NULL
-#endif
-
-#else
-#ifdef CONFIG_PM
-static int bcm4329_rfkill_suspend(struct platform_device *pdev, pm_message_t state)
-{
-#ifdef CONFIG_BT_AUTOSLEEP
- bcm4325_sleep(1);
-#endif
- return 0;
-}
-#else
-#define bcm4329_rfkill_suspend NULL
-#endif
-#define bcm4329_rfkill_resume NULL
-#endif
-
-void bcm4325_sleep(unsigned long bSleep)
-{
- DBG("*** bt sleep: %d ***\n", bSleep);
-#ifdef CONFIG_BT_AUTOSLEEP
- del_timer(&bt_sleep_tl);// cmy: È·±£ÔÚ»½ÐÑBTʱ£¬²»»áÒò´¥·¢bt_sleep_tl¶øÂíÉÏ˯Ãß
-#endif
-
- IOMUX_BT_GPIO_WAKE_UP();
- gpio_set_value(BT_GPIO_WAKE_UP, bSleep?GPIO_LOW:GPIO_HIGH);
-
-#ifdef CONFIG_BT_AUTOSLEEP
- if(!bSleep)
- mod_timer(&bt_sleep_tl, jiffies + BT_AUTO_SLEEP_TIMEOUT*HZ);//ÔÙÖØÐÂÉèÖó¬Ê±Öµ¡£
-#endif
-}
-
-static int bcm4329_set_block(void *data, bool blocked)
-{
- DBG("set blocked :%d\n", blocked);
-
- IOMUX_BT_GPIO_POWER();
- IOMUX_BT_GPIO_RESET();
-
- if (false == blocked) {
- gpio_set_value(BT_GPIO_POWER, GPIO_HIGH); /* bt power on */
- mdelay(20);
-
- gpio_set_value(BT_GPIO_RESET, GPIO_LOW);
- mdelay(20);
- gpio_set_value(BT_GPIO_RESET, GPIO_HIGH); /* bt reset deactive*/
-
- mdelay(20);
- bcm4325_sleep(0); // ensure bt is wakeup
-
- pr_info("bt turn on power\n");
- } else {
-#if WIFI_BT_POWER_TOGGLE
- if (!rk29sdk_wifi_power_state) {
-#endif
- gpio_set_value(BT_GPIO_POWER, GPIO_LOW); /* bt power off */
- mdelay(20);
- pr_info("bt shut off power\n");
-#if WIFI_BT_POWER_TOGGLE
- }else {
- pr_info("bt shouldn't shut off power, wifi is using it!\n");
- }
-#endif
-
- gpio_set_value(BT_GPIO_RESET, GPIO_LOW); /* bt reset active*/
- mdelay(20);
- }
-
-#if WIFI_BT_POWER_TOGGLE
- rk29sdk_bt_power_state = !blocked;
-#endif
- return 0;
-}
-
-static const struct rfkill_ops bcm4329_rfk_ops = {
- .set_block = bcm4329_set_block,
-};
-
-static int __devinit bcm4329_rfkill_probe(struct platform_device *pdev)
-{
- int rc = 0;
- bool default_state = true;
-
- DBG("Enter %s\n",__FUNCTION__);
-
- /* default to bluetooth off */
- bcm4329_set_block(NULL, default_state); /* blocked -> bt off */
-
- gBtCtrl.bt_rfk = rfkill_alloc(bt_name,
- NULL,
- RFKILL_TYPE_BLUETOOTH,
- &bcm4329_rfk_ops,
- NULL);
-
- if (!gBtCtrl.bt_rfk)
- {
- LOG("fail to rfkill_allocate\n");
- return -ENOMEM;
- }
-
- rfkill_set_states(gBtCtrl.bt_rfk, default_state, false);
-
- rc = rfkill_register(gBtCtrl.bt_rfk);
- if (rc)
- {
- LOG("failed to rfkill_register,rc=0x%x\n",rc);
- rfkill_destroy(gBtCtrl.bt_rfk);
- }
-
- gpio_request(BT_GPIO_POWER, NULL);
- gpio_request(BT_GPIO_RESET, NULL);
- gpio_request(BT_GPIO_WAKE_UP, NULL);
-
-#ifdef CONFIG_BT_AUTOSLEEP
- init_timer(&bt_sleep_tl);
- bt_sleep_tl.expires = 0;
- bt_sleep_tl.function = bcm4325_sleep;
- bt_sleep_tl.data = 1;
- add_timer(&bt_sleep_tl);
-#endif
-
-#if BT_WAKE_HOST_SUPPORT
- init_timer(&(gBtCtrl.tl));
- gBtCtrl.tl.expires = 0;
- gBtCtrl.tl.function = timer_hostSleep;
- add_timer(&(gBtCtrl.tl));
- gBtCtrl.b_HostWake = false;
-
- wake_lock_init(&(gBtCtrl.bt_wakelock), WAKE_LOCK_SUSPEND, "bt_wake");
-
- rc = gpio_request(BT_GPIO_WAKE_UP_HOST, "bt_wake");
- if (rc) {
- LOG("Failed to request BT_WAKE_UP_HOST\n");
- }
-
- IOMUX_BT_GPIO_WAKE_UP_HOST();
- gpio_pull_updown(BT_GPIO_WAKE_UP_HOST,GPIOPullUp);
- #endif
-
- LOG("bcm4329 module has been initialized,rc=0x%x\n",rc);
-
- return rc;
-}
-
-
-static int __devexit bcm4329_rfkill_remove(struct platform_device *pdev)
-{
- if (gBtCtrl.bt_rfk)
- rfkill_unregister(gBtCtrl.bt_rfk);
- gBtCtrl.bt_rfk = NULL;
-#if BT_WAKE_HOST_SUPPORT
- del_timer(&(gBtCtrl.tl));//ɾµô¶¨Ê±Æ÷
- btWakeupHostUnlock();
- wake_lock_destroy(&(gBtCtrl.bt_wakelock));
-#endif
-#ifdef CONFIG_BT_AUTOSLEEP
- del_timer(&bt_sleep_tl);
-#endif
-
- platform_set_drvdata(pdev, NULL);
-
- DBG("Enter %s\n",__FUNCTION__);
- return 0;
-}
-
-static struct platform_driver bcm4329_rfkill_driver = {
- .probe = bcm4329_rfkill_probe,
- .remove = __devexit_p(bcm4329_rfkill_remove),
- .driver = {
- .name = "rk29sdk_rfkill",
- .owner = THIS_MODULE,
- },
- .suspend = bcm4329_rfkill_suspend,
- .resume = bcm4329_rfkill_resume,
-};
-
-/*
- * Module initialization
- */
-static int __init bcm4329_mod_init(void)
-{
- int ret;
- DBG("Enter %s\n",__FUNCTION__);
- ret = platform_driver_register(&bcm4329_rfkill_driver);
- LOG("ret=0x%x\n", ret);
- return ret;
-}
-
-static void __exit bcm4329_mod_exit(void)
-{
- platform_driver_unregister(&bcm4329_rfkill_driver);
-}
-
-module_init(bcm4329_mod_init);
-module_exit(bcm4329_mod_exit);
-MODULE_DESCRIPTION("bcm4329 Bluetooth driver");
-MODULE_AUTHOR("roger_chen cz@rock-chips.com, cmy@rock-chips.com");
-MODULE_LICENSE("GPL");
-
projects / firefly-linux-kernel-4.4.55.git / commitdiff