1 #include <linux/module.h>
2 #include <linux/kernel.h>
5 #include <linux/gpio.h>
6 #include <linux/input.h>
7 #include <linux/platform_device.h>
9 #include <linux/uaccess.h>
10 #include <linux/miscdevice.h>
11 #include <linux/circ_buf.h>
12 #include <linux/interrupt.h>
13 #include <linux/miscdevice.h>
14 #include <mach/iomux.h>
15 #include <mach/gpio.h>
16 //#include <mach/spi_fpga.h>
17 #include <linux/delay.h>
18 #include <linux/poll.h>
19 #include <linux/wait.h>
20 //#include <linux/android_power.h>
21 //#include <asm/arch/gpio_extend.h>
22 #include <linux/workqueue.h>
23 #include <linux/mtk23d.h>
24 #include <linux/wakelock.h>
25 #include "../mtd/rknand/api_flash.h"
27 MODULE_LICENSE("GPL");
31 #define MODEMDBG(x...) printk(x)
33 #define MODEMDBG(fmt,argss...)
35 #define MTK23D_POWEROFF 0X00
36 #define MTK23D_RESET 0x01
37 #define MTK23D_POWERON 0x02
38 #define MTK23D_POWER_HIGH 0x03
39 #define MTK23D_IMEI_READ 0x04
40 //#define BP_POW_EN TCA6424_P02
41 //#define BP_STATUS RK2818_PIN_PH7 //input high bp sleep
42 //#define AP_STATUS RK2818_PIN_PA4 //output high ap sleep
44 //#define BP_RESET TCA6424_P11 //Ryan
46 //#define AP_BP_WAKEUP RK2818_PIN_PF5 //output AP wake up BP used rising edge
47 //#define BP_AP_WAKEUP RK2818_PIN_PE0 //input BP wake up AP
49 static bool bpstatus_irq_enable = false;
50 static bool wakelock_inited;
51 static struct wake_lock mtk23d_wakelock;
56 //struct modem_dev *mt6223d_data = NULL;
57 struct rk2818_23d_data *gpdata = NULL;
59 static int rk29_uart_to_gpio(int uart_id)
62 rk29_mux_api_set(GPIO2B3_UART3SOUT_NAME, GPIO2L_GPIO2B3);
63 rk29_mux_api_set(GPIO2B2_UART3SIN_NAME, GPIO2L_GPIO2B2);
65 gpio_request(RK29_PIN2_PB3, NULL);
66 gpio_request(RK29_PIN2_PB2, NULL);
68 gpio_direction_output(RK29_PIN2_PB3, GPIO_LOW);
69 gpio_direction_output(RK29_PIN2_PB2, GPIO_LOW);
71 else if(uart_id == 2) {
72 rk29_mux_api_set(GPIO2B1_UART2SOUT_NAME, GPIO2L_GPIO2B1);
73 rk29_mux_api_set(GPIO2B0_UART2SIN_NAME, GPIO2L_GPIO2B0);
75 gpio_request(RK29_PIN2_PB1, NULL);
76 gpio_request(RK29_PIN2_PB0, NULL);
78 gpio_direction_output(RK29_PIN2_PB1, GPIO_LOW);
79 gpio_direction_output(RK29_PIN2_PB0, GPIO_LOW);
81 else if(uart_id == 1) {
82 rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_GPIO2A5);
83 rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_GPIO2A4);
85 gpio_request(RK29_PIN2_PA5, NULL);
86 gpio_request(RK29_PIN2_PA4, NULL);
88 gpio_direction_output(RK29_PIN2_PA5, GPIO_LOW);
89 gpio_direction_output(RK29_PIN2_PA4, GPIO_LOW);
91 else if(uart_id == 0){
92 rk29_mux_api_set(GPIO1B7_UART0SOUT_NAME, GPIO1L_GPIO1B7);
93 gpio_request(RK29_PIN1_PB7, NULL);
94 gpio_direction_output(RK29_PIN1_PB7,GPIO_LOW);
95 gpio_pull_updown(RK29_PIN1_PB7, PullDisable); // ÏÂÀ½ûÖ¹
97 rk29_mux_api_set(GPIO1B6_UART0SIN_NAME, GPIO1L_GPIO1B6);
98 gpio_request(RK29_PIN1_PB6, NULL);
99 gpio_direction_output(RK29_PIN1_PB6,GPIO_LOW);
100 gpio_pull_updown(RK29_PIN1_PB6, PullDisable); // ÏÂÀ½ûÖ¹
102 rk29_mux_api_set(GPIO1C1_UART0RTSN_SDMMC1WRITEPRT_NAME, GPIO1H_GPIO1C1);
103 gpio_request(RK29_PIN1_PC1, NULL);
104 gpio_direction_output(RK29_PIN1_PC1,GPIO_LOW);
106 rk29_mux_api_set(GPIO1C0_UART0CTSN_SDMMC1DETECTN_NAME, GPIO1H_GPIO1C0);
107 gpio_request(RK29_PIN1_PC0, NULL);
108 //gpio_direction_input(RK29_PIN1_PC0);
109 gpio_direction_output(RK29_PIN1_PC0,GPIO_LOW);
115 static int rk29_gpio_to_uart(int uart_id)
118 rk29_mux_api_set(GPIO2B3_UART3SOUT_NAME, GPIO2L_UART3_SOUT);
119 rk29_mux_api_set(GPIO2B2_UART3SIN_NAME, GPIO2L_UART3_SIN);
121 gpio_request(RK29_PIN2_PB3, NULL);
122 gpio_request(RK29_PIN2_PB2, NULL);
124 gpio_direction_output(RK29_PIN2_PB3, GPIO_HIGH);
125 gpio_direction_output(RK29_PIN2_PB2, GPIO_HIGH);
127 else if(uart_id == 2) {
128 rk29_mux_api_set(GPIO2B1_UART2SOUT_NAME, GPIO2L_UART2_SOUT);
129 rk29_mux_api_set(GPIO2B0_UART2SIN_NAME, GPIO2L_UART2_SIN);
131 gpio_request(RK29_PIN2_PB1, NULL);
132 gpio_request(RK29_PIN2_PB0, NULL);
134 gpio_direction_output(RK29_PIN2_PB1, GPIO_HIGH);
135 gpio_direction_output(RK29_PIN2_PB0, GPIO_HIGH);
137 else if(uart_id == 1) {
138 rk29_mux_api_set(GPIO2A5_UART1SOUT_NAME, GPIO2L_UART1_SOUT);
139 rk29_mux_api_set(GPIO2A4_UART1SIN_NAME, GPIO2L_UART1_SIN);
141 gpio_request(RK29_PIN2_PA5, NULL);
142 gpio_request(RK29_PIN2_PA4, NULL);
144 gpio_direction_output(RK29_PIN2_PA5, GPIO_HIGH);
145 gpio_direction_output(RK29_PIN2_PA4, GPIO_HIGH);
147 else if(uart_id == 0){
148 rk29_mux_api_set(GPIO1B7_UART0SOUT_NAME, GPIO1L_UART0_SOUT);
149 rk29_mux_api_set(GPIO1B6_UART0SIN_NAME, GPIO1L_UART0_SIN);
150 rk29_mux_api_set(GPIO1C1_UART0RTSN_SDMMC1WRITEPRT_NAME, GPIO1H_UART0_RTS_N);
151 rk29_mux_api_set(GPIO1C0_UART0CTSN_SDMMC1DETECTN_NAME, GPIO1H_UART0_CTS_N);
158 static int get_bp_statue(struct platform_device *pdev)
160 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
162 if(gpio_get_value(pdata->bp_statue))
167 static void ap_sleep(struct platform_device *pdev)
169 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
171 MODEMDBG("ap sleep!\n");
172 gpio_set_value(pdata->ap_statue,GPIO_HIGH);
174 static void ap_wakeup(struct platform_device *pdev)
176 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
178 MODEMDBG("ap wakeup!\n");
179 gpio_set_value(pdata->ap_statue,GPIO_LOW);
182 static void ap_wakeup_bp(struct platform_device *pdev, int wake)//low to wakeup bp
184 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
185 struct modem_dev *mt6223d_data = platform_get_drvdata(pdev);
186 MODEMDBG("ap_wakeup_bp\n");
188 gpio_set_value(pdata->ap_bp_wakeup, wake); // phc
189 //gpio_set_value(RK2818_PIN_PF5, wake);
192 static void bpwakeup_work_func_work(struct work_struct *work)
194 struct modem_dev *bdata = container_of(work, struct modem_dev, work);
196 MODEMDBG("%s\n", __FUNCTION__);
200 static irqreturn_t bpwakeup_work_func(int irq, void *data)
202 struct modem_dev *mt6223d_data = (struct modem_dev *)data;
204 MODEMDBG("bpwakeup_work_func\n");
205 schedule_work(&mt6223d_data->work);
208 static irqreturn_t bp_apwakeup_work_func(int irq, void *data)
210 //struct modem_dev *dev = &mtk23d_misc;
212 MODEMDBG("bp_apwakeup_work_func\n");
213 //wake_up_interruptible(&dev->wakeup);
217 static irqreturn_t BBwakeup_isr(int irq, void *dev_id)
219 struct rk2818_23d_data *pdata = dev_id;
221 MODEMDBG("%s \n", __FUNCTION__);
222 //if(irq != gpio_to_irq(RK29_PIN1_PC0))
224 // printk("irq != gpio_to_irq(RK29_PIN1_PC0) \n");
228 // disable_irq_wake(irq);
230 if(bpstatus_irq_enable == true)
232 MODEMDBG("mtk23d_wakelock 3s \n");
233 wake_lock_timeout(&mtk23d_wakelock, 3 * HZ);
240 int modem_poweron_off(int on_off)
242 struct rk2818_23d_data *pdata = gpdata;
243 int result, error = 0, irq = 0;
247 printk("modem_poweron\n");
249 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH); // power on enable
251 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW); // release reset
253 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW); // power on relase
255 rk29_gpio_to_uart(0);
257 gpio_direction_input(pdata->bp_statue);
258 if(pdata->bp_ap_wakeup) // SDK°åÖУ¬¸Ã¿ÚûÓÐÒý³ö
259 gpio_direction_input(pdata->bp_ap_wakeup);
261 /* ³õʼ»¯BP»½ÐÑAPµÄ¹¦ÄÜ */
262 wakelock_inited = false;
263 irq = gpio_to_irq(pdata->bp_statue);
265 printk("can't get pdata->bp_statue irq \n");
269 error = request_irq(irq, BBwakeup_isr,IRQF_TRIGGER_FALLING, NULL, pdata);
271 printk("mtk23d_probe bp_statue request_irq error!!! \n");
274 if (!wakelock_inited) {
275 wake_lock_init(&mtk23d_wakelock, WAKE_LOCK_SUSPEND, "23d_resume");
276 wakelock_inited = true;
281 printk("modem_poweroff\n");
282 rk29_uart_to_gpio(0);
283 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
285 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
287 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
290 static int power_on =1;
291 static int mtk23d_open(struct inode *inode, struct file *file)
293 struct rk2818_23d_data *pdata = gpdata;
294 //struct rk2818_23d_data *pdata = gpdata = pdev->dev.platform_data;
295 struct platform_data *pdev = container_of(pdata, struct device, platform_data);
297 MODEMDBG("modem_open\n");
303 modem_poweron_off(1);
305 device_init_wakeup(&pdev, 1);
310 static int mtk23d_release(struct inode *inode, struct file *file)
312 MODEMDBG("mtk23d_release\n");
314 //gpio_free(pdata->bp_power);
318 //extern char imei_value[16]; // phc, no find 'imei_value' in rk29 project
319 //char imei_value[16] = {0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5};
321 static int mtk23d_ioctl(struct inode *inode,struct file *file, unsigned int cmd, unsigned long arg)
323 struct rk2818_23d_data *pdata = gpdata;
325 void __user *argp = (void __user *)arg;
327 char SectorBuffer[512];
329 printk("mtk23d_ioctl\n");
330 ret = down_interruptible(&pdata->power_sem);
332 printk("%s: down power_sem error ret = %d\n", __func__, ret);
339 case MTK23D_POWEROFF:
340 printk("MTK23D_POWEROFF\n");
341 rk29_uart_to_gpio(0);
342 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
344 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
346 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
350 printk("MTK23D_RESET\n");
351 /****power off 23d and uart to gpio***/
352 rk29_uart_to_gpio(0);
353 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
355 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
357 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
359 /****power on 23d***/
361 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
362 rk29_gpio_to_uart(0);
364 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
366 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
370 /****power on 23d***/
371 printk("MTK23D_POWERON\n");
372 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
374 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
375 rk29_gpio_to_uart(0);
377 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
379 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
382 case MTK23D_IMEI_READ:
383 printk("MTK23D_IMEI_READ\n");
385 GetSNSectorInfo(SectorBuffer); // phc,20110624
387 if(copy_to_user(argp, &(SectorBuffer[451]), 16)) // IMEIºó´Ó451Æ«ÒÆ¿ªÊ¼µÄ16bytes£¬µÚÒ»¸öbyteΪ³¤¶È¹Ì¶¨Îª15
389 printk("ERROR: copy_to_user---%s\n", __FUNCTION__);
390 up(&pdata->power_sem);
393 //printk("IMEI:%d %d %d %d\n", SectorBuffer[451], SectorBuffer[452], SectorBuffer[453], SectorBuffer[454]);
399 up(&pdata->power_sem);
404 static struct file_operations mtk23d_fops = {
405 .owner = THIS_MODULE,
407 .release = mtk23d_release,
408 .ioctl = mtk23d_ioctl
411 static struct miscdevice mtk23d_misc = {
412 .minor = MISC_DYNAMIC_MINOR,
417 static int mtk23d_probe(struct platform_device *pdev)
419 struct rk2818_23d_data *pdata = gpdata = pdev->dev.platform_data;
420 struct modem_dev *mt6223d_data = NULL;
421 int result, error = 0, irq = 0;
423 MODEMDBG("mtk23d_probe\n");
427 mt6223d_data = kzalloc(sizeof(struct modem_dev), GFP_KERNEL);
428 if(NULL == mt6223d_data)
430 printk("failed to request mt6223d_data\n");
433 platform_set_drvdata(pdev, mt6223d_data);
435 result = gpio_request(pdata->bp_statue, "mtk23d");
437 printk("failed to request BP_STATUS gpio\n");
441 result = gpio_request(pdata->ap_statue, "mtk23d");
443 printk("failed to request AP_STATUS gpio\n");
447 result = gpio_request(pdata->ap_bp_wakeup, "mtk23d");
449 printk("failed to request AP_BP_WAKEUP gpio\n");
452 result = gpio_request(pdata->bp_reset, "mtk23d");
454 printk("failed to request BP_RESET gpio\n");
457 result = gpio_request(pdata->bp_power, "mtk23d");
459 printk("failed to request BP_POW_EN gpio\n");
463 if(pdata->bp_ap_wakeup) // SDK°åÖУ¬¸Ã¿ÚûÓÐÒý³ö
465 result = gpio_request(pdata->bp_ap_wakeup, "mtk23d");
467 printk("failed to request BP_AP_WAKEUP gpio\n");
472 #if 1 // GPIO³õʼ»¯£¬²¢ÇÒ·Àֹ©µç
473 rk29_uart_to_gpio(0);
475 /***power off 23d***/
476 gpio_direction_output(pdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
478 gpio_direction_output(pdata->ap_statue, GPIO_LOW);
479 gpio_direction_output(pdata->ap_bp_wakeup, GPIO_LOW);
480 //gpio_direction_output(pdata->bp_statue,GPIO_LOW);
481 gpio_direction_input(pdata->bp_statue);
482 if(pdata->bp_ap_wakeup) // SDK°åÖУ¬¸Ã¿ÚûÓÐÒý³ö
484 //gpio_direction_output(pdata->bp_ap_wakeup,GPIO_LOW);
485 gpio_direction_input(pdata->bp_ap_wakeup);
489 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
491 //gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
494 INIT_WORK(&mt6223d_data->work, bpwakeup_work_func_work);
495 init_MUTEX(&pdata->power_sem);
497 result = misc_register(&mtk23d_misc);
500 MODEMDBG("misc_register err\n");
502 MODEMDBG("mtk23d_probe ok\n");
506 cancel_work_sync(&mt6223d_data->work);
507 gpio_free(pdata->bp_ap_wakeup);
509 gpio_free(pdata->bp_power);
511 gpio_free(pdata->bp_reset);
513 gpio_free(pdata->ap_bp_wakeup);
515 gpio_free(pdata->ap_statue);
517 gpio_free(pdata->bp_statue);
524 int mtk23d_suspend(struct platform_device *pdev)
527 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
529 MODEMDBG("%s \n", __FUNCTION__);
531 //enable_irq_wake(irq);
533 ap_wakeup_bp(pdev, 0);
535 irq = gpio_to_irq(pdata->bp_statue);
537 printk("can't get pdata->bp_statue irq \n");
541 printk("enable pdata->bp_statue irq_wake!! \n");
542 bpstatus_irq_enable = true;
543 enable_irq_wake(irq);
549 int mtk23d_resume(struct platform_device *pdev)
551 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
554 MODEMDBG("%s \n", __FUNCTION__);
556 irq = gpio_to_irq(pdata->bp_statue);
559 printk("disable pdata->bp_statue irq_wake!! \n");
560 bpstatus_irq_enable = false;
561 disable_irq_wake(irq);
565 ap_wakeup_bp(pdev, 1);
570 void mtk23d_shutdown(struct platform_device *pdev, pm_message_t state)
572 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
573 struct modem_dev *mt6223d_data = platform_get_drvdata(pdev);
575 MODEMDBG("%s \n", __FUNCTION__);
577 modem_poweron_off(0); // power down
579 cancel_work_sync(&mt6223d_data->work);
580 gpio_free(pdata->bp_ap_wakeup);
581 gpio_free(pdata->bp_power);
582 gpio_free(pdata->bp_reset);
583 gpio_free(pdata->ap_bp_wakeup);
584 gpio_free(pdata->ap_statue);
585 gpio_free(pdata->bp_statue);
589 static struct platform_driver mtk23d_driver = {
590 .probe = mtk23d_probe,
591 .shutdown = mtk23d_shutdown,
592 .suspend = mtk23d_suspend,
593 .resume = mtk23d_resume,
596 .owner = THIS_MODULE,
600 static int __init mtk23d_init(void)
602 MODEMDBG("mtk23d_init ret=%d\n");
603 return platform_driver_register(&mtk23d_driver);
606 static void __exit mtk23d_exit(void)
608 MODEMDBG("mtk23d_exit\n");
609 platform_driver_unregister(&mtk23d_driver);
612 module_init(mtk23d_init);
613 //late_initcall_sync(mtk23d_init);
614 module_exit(mtk23d_exit);