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>
26 MODULE_LICENSE("GPL");
30 #define MODEMDBG(x...) printk(x)
32 #define MODEMDBG(fmt,argss...)
35 #define MTK23D_RESET 0x01
36 #define MTK23D_POWERON 0x02
37 #define MTK23D_POWER_HIGH 0x03
38 #define MTK23D_IMEI_READ 0x04
39 //#define BP_POW_EN TCA6424_P02
40 //#define BP_STATUS RK2818_PIN_PH7 //input high bp sleep
41 //#define AP_STATUS RK2818_PIN_PA4 //output high ap sleep
43 //#define BP_RESET TCA6424_P11 //Ryan
45 //#define AP_BP_WAKEUP RK2818_PIN_PF5 //output AP wake up BP used rising edge
46 //#define BP_AP_WAKEUP RK2818_PIN_PE0 //input BP wake up AP
48 static bool wakelock_inited;
49 static struct wake_lock mtk23d_wakelock;
54 //struct modem_dev *mt6223d_data = NULL;
55 struct rk2818_23d_data *gpdata = NULL;
57 static int get_bp_statue(struct platform_device *pdev)
59 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
61 if(gpio_get_value(pdata->bp_statue))
66 static void ap_sleep(struct platform_device *pdev)
68 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
70 MODEMDBG("ap sleep!\n");
71 gpio_set_value(pdata->ap_statue,GPIO_HIGH);
73 static void ap_wakeup(struct platform_device *pdev)
75 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
77 MODEMDBG("ap wakeup!\n");
78 gpio_set_value(pdata->ap_statue,GPIO_LOW);
81 static void ap_wakeup_bp(struct platform_device *pdev, int wake)//low to wakeup bp
83 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
84 struct modem_dev *mt6223d_data = platform_get_drvdata(pdev);
85 MODEMDBG("ap_wakeup_bp\n");
87 gpio_set_value(pdata->ap_bp_wakeup, wake); // phc
88 //gpio_set_value(RK2818_PIN_PF5, wake);
91 static void bpwakeup_work_func_work(struct work_struct *work)
93 struct modem_dev *bdata = container_of(work, struct modem_dev, work);
95 MODEMDBG("%s\n", __FUNCTION__);
99 static irqreturn_t bpwakeup_work_func(int irq, void *data)
101 struct modem_dev *mt6223d_data = (struct modem_dev *)data;
103 MODEMDBG("bpwakeup_work_func\n");
104 schedule_work(&mt6223d_data->work);
107 static irqreturn_t bp_apwakeup_work_func(int irq, void *data)
109 //struct modem_dev *dev = &mtk23d_misc;
111 MODEMDBG("bp_apwakeup_work_func\n");
112 //wake_up_interruptible(&dev->wakeup);
115 int modem_poweron_off(int on_off)
117 struct rk2818_23d_data *pdata = gpdata;
121 printk("modem_poweron\n");
122 gpio_set_value(gpdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
124 gpio_set_value(gpdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
128 printk("modem_poweroff\n");
129 gpio_set_value(gpdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
131 gpio_set_value(gpdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
134 static int power_on =1;
135 static int mtk23d_open(struct inode *inode, struct file *file)
137 struct rk2818_23d_data *pdata = gpdata;
138 //struct rk2818_23d_data *pdata = gpdata = pdev->dev.platform_data;
139 struct platform_data *pdev = container_of(pdata, struct device, platform_data);
141 MODEMDBG("modem_open\n");
147 modem_poweron_off(1);
149 rk29_mux_api_set(GPIO1B7_UART0SOUT_NAME, GPIO1L_UART0_SOUT);
150 rk29_mux_api_set(GPIO1B6_UART0SIN_NAME, GPIO1L_UART0_SIN);
151 rk29_mux_api_set(GPIO1C1_UART0RTSN_SDMMC1WRITEPRT_NAME, GPIO1H_UART0_RTS_N);
152 rk29_mux_api_set(GPIO1C0_UART0CTSN_SDMMC1DETECTN_NAME, GPIO1H_UART0_CTS_N);
155 device_init_wakeup(&pdev, 1);
160 static int mtk23d_release(struct inode *inode, struct file *file)
162 MODEMDBG("mtk23d_release\n");
164 //gpio_free(pdata->bp_power);
168 //extern char imei_value[16]; // phc, no find 'imei_value' in rk29 project
169 char imei_value[16] = {0,1,2,3,4,5,6,7,8,9,0,1,2,3,4,5};
171 static int mtk23d_ioctl(struct inode *inode,struct file *file, unsigned int cmd, unsigned long arg)
173 struct rk2818_23d_data *pdata = gpdata;
175 void __user *argp = (void __user *)arg;
176 printk("mtk23d_ioctl\n");
180 gpio_set_value(gpdata->bp_power, pdata->bp_power_active_low? GPIO_LOW:GPIO_HIGH);
182 gpio_direction_output(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
184 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
186 gpio_set_value(gpdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
188 case MTK23D_IMEI_READ:
189 if(copy_to_user(argp, &(imei_value[0]), 16))
191 printk("ERROR: copy_to_user---%s\n", __FUNCTION__);
201 static struct file_operations mtk23d_fops = {
202 .owner = THIS_MODULE,
204 .release = mtk23d_release,
205 .ioctl = mtk23d_ioctl
208 static struct miscdevice mtk23d_misc = {
209 .minor = MISC_DYNAMIC_MINOR,
214 static int mtk23d_probe(struct platform_device *pdev)
216 struct rk2818_23d_data *pdata = gpdata = pdev->dev.platform_data;
217 struct modem_dev *mt6223d_data = NULL;
220 MODEMDBG("mtk23d_probe\n");
223 rk29_mux_api_set(GPIO1B7_UART0SOUT_NAME, GPIO1L_GPIO1B7);
224 gpio_request(RK29_PIN1_PB7, NULL);
225 gpio_direction_output(RK29_PIN1_PB7,GPIO_LOW);
226 gpio_pull_updown(RK29_PIN1_PB7, PullDisable); // ÏÂÀ½ûÖ¹
228 rk29_mux_api_set(GPIO1B6_UART0SIN_NAME, GPIO1L_GPIO1B6);
229 gpio_request(RK29_PIN1_PB6, NULL);
230 gpio_direction_output(RK29_PIN1_PB6,GPIO_LOW);
231 gpio_pull_updown(RK29_PIN1_PB6, PullDisable); // ÏÂÀ½ûÖ¹
233 rk29_mux_api_set(GPIO1C1_UART0RTSN_SDMMC1WRITEPRT_NAME, GPIO1H_GPIO1C1);
234 gpio_request(RK29_PIN1_PC1, NULL);
235 gpio_direction_output(RK29_PIN1_PC1,GPIO_LOW);
237 rk29_mux_api_set(GPIO1C0_UART0CTSN_SDMMC1DETECTN_NAME, GPIO1H_GPIO1C0);
238 gpio_request(RK29_PIN1_PC0, NULL);
239 gpio_direction_input(RK29_PIN1_PC0);
244 mt6223d_data = kzalloc(sizeof(struct modem_dev), GFP_KERNEL);
245 if(NULL == mt6223d_data)
247 printk("failed to request mt6223d_data\n");
250 platform_set_drvdata(pdev, mt6223d_data);
252 result = gpio_request(pdata->bp_statue, "mtk23d");
254 printk("failed to request BP_STATUS gpio\n");
258 result = gpio_request(pdata->ap_statue, "mtk23d");
260 printk("failed to request AP_STATUS gpio\n");
264 result = gpio_request(pdata->ap_bp_wakeup, "mtk23d");
266 printk("failed to request AP_BP_WAKEUP gpio\n");
269 result = gpio_request(pdata->bp_reset, "mtk23d");
271 printk("failed to request BP_RESET gpio\n");
274 result = gpio_request(pdata->bp_power, "mtk23d");
276 printk("failed to request BP_POW_EN gpio\n");
281 gpio_set_value(pdata->bp_power, pdata->bp_power_active_low? GPIO_HIGH:GPIO_LOW);
282 gpio_direction_output(pdata->ap_statue, GPIO_LOW);
283 gpio_direction_output(pdata->ap_bp_wakeup, GPIO_LOW);
285 gpio_direction_output(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
287 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
288 gpio_set_value(pdata->ap_bp_wakeup, GPIO_HIGH);
290 gpio_direction_input(pdata->bp_statue);
294 gpio_direction_input(pdata->bp_statue);
296 //rk2818_mux_api_set(CXGPIO_HSADC_SEL_NAME, 0);
297 gpio_direction_output(pdata->ap_statue, GPIO_LOW);
299 //rk2818_mux_api_set(GPIOF5_APWM3_DPWM3_NAME,0);
300 gpio_direction_output(pdata->ap_bp_wakeup, GPIO_LOW);
302 //rk2818_mux_api_set(GPIOE_SPI1_FLASH_SEL_NAME, IOMUXA_GPIO1_A3B7);
303 gpio_direction_output(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_LOW:GPIO_HIGH);
305 gpio_set_value(pdata->bp_reset, pdata->bp_reset_active_low? GPIO_HIGH:GPIO_LOW);
306 gpio_set_value(pdata->ap_bp_wakeup, GPIO_HIGH);
309 INIT_WORK(&mt6223d_data->work, bpwakeup_work_func_work);
311 result = misc_register(&mtk23d_misc);
314 MODEMDBG("misc_register err\n");
316 MODEMDBG("mtk23d_probe ok\n");
318 if (!wakelock_inited) {
319 wake_lock_init(&mtk23d_wakelock, WAKE_LOCK_SUSPEND, "23d_resume");
320 wakelock_inited = true;
325 cancel_work_sync(&mt6223d_data->work);
326 gpio_free(pdata->bp_ap_wakeup);
328 gpio_free(pdata->bp_power);
330 gpio_free(pdata->bp_reset);
332 gpio_free(pdata->ap_bp_wakeup);
334 gpio_free(pdata->ap_statue);
336 gpio_free(pdata->bp_statue);
343 static irqreturn_t BBwakeup_isr(int irq, void *dev_id)
345 struct rk2818_23d_data *pdata = dev_id;
347 MODEMDBG("%s \n", __FUNCTION__);
348 //if(irq != gpio_to_irq(RK29_PIN1_PC0))
350 // printk("irq != gpio_to_irq(RK29_PIN1_PC0) \n");
354 // disable_irq_wake(irq);
356 wake_lock_timeout(&mtk23d_wakelock, 2 * HZ);
361 int mtk23d_suspend(struct platform_device *pdev)
364 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
366 MODEMDBG("%s \n", __FUNCTION__);
367 //enable_irq_wake(irq);
369 ap_wakeup_bp(pdev, 0);
371 irq = gpio_to_irq(pdata->bp_statue);
373 printk("can't get pdata->bp_statue irq \n");
377 error = request_irq(irq, BBwakeup_isr,
378 IRQF_TRIGGER_FALLING,
382 printk("request_irq error!!! \n");
384 enable_irq_wake(irq);
390 int mtk23d_resume(struct platform_device *pdev)
392 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
395 MODEMDBG("%s \n", __FUNCTION__);
396 //disable_irq_wake(irq);
398 ap_wakeup_bp(pdev, 1);
400 irq = gpio_to_irq(pdata->bp_statue);
403 printk("disable pdata->bp_statue irq_wake!! \n");
404 disable_irq_wake(irq);
410 void mtk23d_shutdown(struct platform_device *pdev, pm_message_t state)
412 struct rk2818_23d_data *pdata = pdev->dev.platform_data;
413 struct modem_dev *mt6223d_data = platform_get_drvdata(pdev);
415 MODEMDBG("%s \n", __FUNCTION__);
417 modem_poweron_off(0); // power down
419 cancel_work_sync(&mt6223d_data->work);
420 gpio_free(pdata->bp_ap_wakeup);
421 gpio_free(pdata->bp_power);
422 gpio_free(pdata->bp_reset);
423 gpio_free(pdata->ap_bp_wakeup);
424 gpio_free(pdata->ap_statue);
425 gpio_free(pdata->bp_statue);
429 static struct platform_driver mtk23d_driver = {
430 .probe = mtk23d_probe,
431 .shutdown = mtk23d_shutdown,
432 .suspend = mtk23d_suspend,
433 .resume = mtk23d_resume,
436 .owner = THIS_MODULE,
440 static int __init mtk23d_init(void)
442 MODEMDBG("mtk23d_init ret=%d\n");
443 return platform_driver_register(&mtk23d_driver);
446 static void __exit mtk23d_exit(void)
448 MODEMDBG("mtk23d_exit\n");
449 platform_driver_unregister(&mtk23d_driver);
452 module_init(mtk23d_init);
453 //late_initcall_sync(mtk23d_init);
454 module_exit(mtk23d_exit);