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Commit 0afc5ff0 authored by Wei Tan's avatar Wei Tan Committed by Gerrit - the friendly Code Review server
Browse files

misc: updates to controller's driver 



Cleaned up and updated the driver for the
end-to-end scenario of XR reference device
connecting with the Remote VR controllers.

Change-Id: I1cb725c331b808addc7c5b8af0422ce616fa7f03
Signed-off-by: default avatarWei Tan <quic_weitan@quicinc.com>
parent 4508a569

drivers/misc/kxrctrl/aphost.c

+263 −589

File changed.

Preview size limit exceeded, changes collapsed.

drivers/misc/kxrctrl/aphost.h

+62 −25
Original line number Diff line number Diff line
@@ -6,6 +6,7 @@ 
 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 *

 * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.

 */



#ifndef __APHOST_H__
@@ -22,23 +23,18 @@ 
#include <linux/of_gpio.h>

#include <linux/of_irq.h>

#include <asm-generic/gpio.h>



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/device.h>

#include <linux/kdev_t.h>



#include <linux/types.h>

#include <linux/bitops.h>

#include <linux/errno.h>

#include <linux/dma-buf.h>



#include <linux/of.h>

#include <linux/of_gpio.h>



#include <linux/of_device.h>



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/miscdevice.h>
@@ -50,19 +46,16 @@ 
#include <linux/delay.h>

#include <linux/irqdomain.h>

#include <linux/interrupt.h>



#include <linux/irq.h>

#include <linux/jiffies.h>

#include <linux/timekeeping.h>

#include <linux/kthread.h>



#include <linux/delay.h>

#include <linux/slab.h>

#include <linux/gpio.h>

#include <linux/of_gpio.h>

#include <linux/spi/spi.h>

#include <linux/of_irq.h>



#include <linux/init.h>

#include <linux/kernel.h>

#include <linux/module.h>
@@ -72,18 +65,24 @@ 
#include <linux/usb/ch11.h>

#include <linux/usb/hcd.h>

#include <linux/usb/phy.h>



#include <linux/regulator/consumer.h>

#include <linux/kernel.h>

#include <linux/string.h>



#include <uapi/linux/sched/types.h>



#include <linux/time.h>

#include <linux/timer.h>



#include <uapi/linux/sched/types.h>



#define MAX_PACK_SIZE 100 

#define MAX_DATA_SIZE 32

//#define MANUL_CONTROL_JOYSTICK_RLED



#define XFR_SIZE  190

/* Protocol commands to interact with firmware */

#define CMD_DATA_TAG  0xA6

#define CMD_CLR_BOND_TAG  0xA7

#define CMD_REQUEST_TAG   (0xA8)

#define CMD_EXTDATA_RLEDTAG  0xB6



typedef struct {

	uint64_t ts;
@@ -91,11 +90,10 @@ typedef struct { 
	uint8_t data[MAX_DATA_SIZE];

} d_packet_t;





typedef struct {

volatile int8_t c_head;

volatile int8_t p_head;

volatile int8_t packDS;

	int8_t c_head;

	int8_t p_head;

	int8_t packDS;

	d_packet_t  data[MAX_PACK_SIZE];

} cp_buffer_t;
@@ -119,18 +117,57 @@ typedef struct _request_t 
	struct _requestHead

	{

		unsigned char requestType:7;

		unsigned char needAck:1;  //1:need to ack 0:don't need to ack

		unsigned char needAck:1;  /* 1:need to ack 0:no need to ack */

	} requestHead;

	unsigned char requestData[3];

}request_t;

} __packed request_t;



typedef struct _acknowledge_t

{

	struct _acknowledgeHead

	{

		unsigned char requestType:7;

		unsigned char ack:1;  //1:ack 0:not ack

		unsigned char ack:1;  /* 1:ack 0:not ack */

	} acknowledgeHead;

	unsigned char acknowledgeData[3];

}acknowledge_t;

#endif //__APHOST_H__
 
} __packed acknowledge_t;



struct jspinctrl_info {

	struct pinctrl *pinctrl;

	struct pinctrl_state *active;

	struct pinctrl_state *suspend;

};



struct js_spi_client {

	struct spi_device *spi_client;

	struct task_struct *kthread;

	struct mutex js_mutex; /* mutex for jsrequest node */

	struct mutex js_sm_mutex; /* dma alloc and free mutex */

	struct mutex js_rled_mutex; /* mutex for jsrled node */

	struct jspinctrl_info pinctrl_info;

	int js_irq_gpio;

	int js_v1p8en_gpio;

	int js_ledl_gpio; /* control left joyStick on and off */

	int js_ledr_gpio; /* control right joyStick on and off */

	int js_irq;

	atomic_t dataflag;

	atomic_t userRequest; /* request from userspace */

	atomic_t nordicAcknowledge; /* ack from nordic52832 master */

	unsigned char JoyStickBondState; /* 1:left JoyStick 2:right JoyStick */

	bool suspend;

	wait_queue_head_t  wait_queue;

	void   *vaddr;

	size_t vsize;

	struct dma_buf *js_buf;

	spinlock_t smem_lock;

	unsigned char txbuffer[255];

	unsigned char rxbuffer[255];

	uint64_t tsHost; /* linux boottime */

	unsigned char powerstate;

	bool    irqstate;

	unsigned char  js_ledl_state;

	unsigned char  js_ledr_state;

	int memfd;

	atomic_t urbstate;

};

#endif /* __APHOST_H__ */

drivers/misc/kxrctrl/local_rled_chip.c

deleted100644 → 0
+0 −618
Original line number Diff line number Diff line 
/*

 * controller's IR driver for the nordic52832 SoCs

 *

 *

 * 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/string.h>

#include <linux/wait.h>

#include <linux/platform_device.h>

#include <linux/gpio.h>

#include <linux/pinctrl/consumer.h>

#include <linux/of.h>

#include <linux/of_address.h>

#include <linux/of_device.h>

#include <linux/of_gpio.h>

#include <linux/of_irq.h>

#include <asm-generic/gpio.h>



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/init.h>

#include <linux/device.h>

#include <linux/kdev_t.h>



#include <linux/types.h>

#include <linux/bitops.h>

#include <linux/errno.h>

#include <linux/dma-buf.h>



#include <linux/of.h>

#include <linux/of_gpio.h>



#include <linux/of_device.h>



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/miscdevice.h>

#include <linux/fs.h>

#include <linux/moduleparam.h>

#include <linux/slab.h>

#include <linux/ioctl.h>

#include <linux/cdev.h>

#include <linux/delay.h>

#include <linux/irqdomain.h>

#include <linux/interrupt.h>



#include <linux/irq.h>

#include <linux/jiffies.h>

#include <linux/timekeeping.h>

#include <linux/kthread.h>



#include <linux/delay.h>

#include <linux/slab.h>

#include <linux/gpio.h>

#include <linux/of_gpio.h>

#include <linux/spi/spi.h>

#include <linux/of_irq.h>



#include <linux/regulator/consumer.h>

#include <linux/kernel.h>

#include <linux/string.h>

#include <linux/hrtimer.h>  

#include <linux/ktime.h>  





struct rled_chip_io {

    	

	int torch_en;

	int flash_en;

	int charge_en;

	int flag_pin; /*rled chip flag pin from chip to cpu,indicate chip state*/

	int irq;   

};







struct local_rled_chip {

	struct mutex      change_lock;/*rled state chagen lock*/

	struct pinctrl *pinctrl;

	struct pinctrl_state *active;

	struct pinctrl_state *suspend;

	int rled_trig_gpio;

	int  irq; /*from the camera sensor trig the irq*/

	struct rled_chip_io chip1;  

	struct rled_chip_io chip2;

    struct hrtimer hr_timer; 

    ktime_t ktime;  

    int  grled_chipenabled;

    int  grled_swflag;/*Every other frame the trig led will use ,not all frame */

    

};





static enum hrtimer_restart timercallback( struct hrtimer *timer )  

{



    struct local_rled_chip   *rled_data;

	rled_data = container_of(timer, struct local_rled_chip,hr_timer);



    gpio_set_value(rled_data->chip1.flash_en, 0);

    gpio_set_value(rled_data->chip2.flash_en, 0);



    //enable_irq(rled_data->irq);

    //pr_err("local_rled timercallback\n");



    return HRTIMER_NORESTART;  

}  





static irqreturn_t  rled_irq_handler(int irq, void *dev_id)

{

    int val=0;

	struct local_rled_chip   *rled_data=(struct local_rled_chip *)dev_id;



    if(rled_data->grled_chipenabled==0)

    {

    	gpio_set_value(rled_data->chip1.flash_en,0);

		gpio_set_value(rled_data->chip2.flash_en,0);

        return IRQ_HANDLED;

    }



	val=gpio_get_value(rled_data->rled_trig_gpio);

	if(val==1)

	{

         if(rled_data->grled_swflag)

         {

                gpio_set_value(rled_data->chip1.flash_en,1);

                gpio_set_value(rled_data->chip2.flash_en,1);

         }



        //disable_irq_nosync(rled_data->irq);

        //hrtimer_start( &rled_data->hr_timer, rled_data->ktime, HRTIMER_MODE_REL ); 

	}

    else

    {

		gpio_set_value(rled_data->chip1.flash_en,0);

		gpio_set_value(rled_data->chip2.flash_en,0);

    }   

    

	//pr_err("rled_irq_handler val=%d\n",val);

	

	return IRQ_HANDLED;

}









/*just test code for the rled chip */



static int  grled_enabled=0;

static int  grled_mode=0;// 0 flash 1,torch  ,0x80 charge enable

static struct local_rled_chip   *gprled_data=NULL;





static ssize_t rledtest_show(struct device *dev,struct device_attribute *attr, char *buf)

{



 	return sprintf(buf, "mode[%d]enable[%d]\n",grled_mode,grled_enabled );

}





static ssize_t rledtest_store(struct device *dev,struct device_attribute *attr, const char *buf, size_t size)  

{



   if(gprled_data==NULL)return size;



   if(sscanf(buf,"%d:%d",&grled_mode,&grled_enabled)==2)

   {

		

		pr_err("local_rled mode =%d, rled = %d \n",grled_mode,grled_enabled);

        

        disable_irq_nosync(gprled_data->irq);// 



		if((grled_mode&0x80)==0x80){ //TODO 

			if(grled_enabled){

	            gpio_set_value(gprled_data->chip1.charge_en,1);

 	            gpio_set_value(gprled_data->chip2.charge_en,1);

			}

			else

	           {

	            gpio_set_value(gprled_data->chip1.charge_en,0);

 	            gpio_set_value(gprled_data->chip2.charge_en,0);

				}

			   

		}





		if((grled_mode&0x7f)==0){

			if(grled_enabled){

	            gpio_set_value(gprled_data->chip1.flash_en,1);

 	            gpio_set_value(gprled_data->chip2.flash_en,1);

			}

			else

	           {

	            gpio_set_value(gprled_data->chip1.flash_en,0);

 	            gpio_set_value(gprled_data->chip2.flash_en,0);

				}

			   

		}



		if((grled_mode&0x7f)==1){

			if(grled_enabled){

	            gpio_set_value(gprled_data->chip1.torch_en,1);

 	            gpio_set_value(gprled_data->chip2.torch_en,1);

			}

			else

	          {

	            gpio_set_value(gprled_data->chip1.torch_en,0);

 	            gpio_set_value(gprled_data->chip2.torch_en,0);

			 }

			   

		}





		

            

   }

      

   return size;

}

/*just test code for the rled chip  end*/





static ssize_t rledchipenable_show(struct device *dev,struct device_attribute *attr, char *buf)

{



 	return sprintf(buf, "rledchipenable[%d]\n",gprled_data->grled_chipenabled );

}





static ssize_t rledchipenable_store(struct device *dev,struct device_attribute *attr, const char *buf, size_t size)  

{

   int  enableflag=0;



   if(gprled_data==NULL)return size;



   if(sscanf(buf,"%d",&enableflag)==1)

   {

		pr_err("local_rled enableflag = %d \n",enableflag);



        mutex_lock(&gprled_data->change_lock);

        if(enableflag==1){



            if(gprled_data->grled_chipenabled==0){

                gprled_data->grled_chipenabled=1;

                enable_irq(gprled_data->irq);

            }

        }

        else{



            if(gprled_data->grled_chipenabled==1){

                gprled_data->grled_chipenabled=0;

                disable_irq_nosync(gprled_data->irq);

            }

            //if irq is not trig when led is on  ,disable here .

            gpio_set_value(gprled_data->chip1.flash_en,0);

		    gpio_set_value(gprled_data->chip2.flash_en,0);

        }

        

        mutex_unlock(&gprled_data->change_lock);

   }

      

   return size;

}







extern  void  external_ctl_gpio(u8 mask);



static ssize_t grledswflag_show(struct device *dev,struct device_attribute *attr, char *buf)

{

 	return sprintf(buf, "rledchipenable[%d]\n",gprled_data->grled_swflag );

}





/*used to ctl V02A joystick */

static ssize_t grledswflag_store(struct device *dev,struct device_attribute *attr, const char *buf, size_t size)  

{

    int  swflag=0;





   if(gprled_data==NULL)return size;



   if(sscanf(buf,"%d",&swflag)==1)

   {

       

        if(swflag){

            external_ctl_gpio((u8)swflag);

            gprled_data->grled_swflag=1;

        }

        else{

            external_ctl_gpio(0);

            gprled_data->grled_swflag=0;

            

        } 

        

	//	pr_err("local_rled grledswflag  = %d \n",gprled_data->grled_swflag);

        

   }

      

   return size;

}







static DEVICE_ATTR(rledtest, S_IRUGO|S_IWUSR|S_IWGRP, rledtest_show, rledtest_store);

static DEVICE_ATTR(rledchipenable, S_IRUGO|S_IWUSR|S_IWGRP, rledchipenable_show, rledchipenable_store);

static DEVICE_ATTR(grledswflag, S_IRUGO|S_IWUSR|S_IWGRP, grledswflag_show, grledswflag_store);





static int rled_local_probe(struct platform_device *pdev)

{



	struct device *dev = &pdev->dev;

	struct device_node *of_node = dev->of_node;



	int rc = 0;



	struct local_rled_chip   *rled_data;



	if(of_node==NULL){

	   pr_err("failed to check of_node \n");

	   return -ENOMEM;

	}



	rled_data = kzalloc(sizeof(*rled_data), GFP_KERNEL);

	if (!rled_data) {

		return -ENOMEM;

	}



	rled_data->pinctrl= devm_pinctrl_get(dev);

	

	if (IS_ERR_OR_NULL(rled_data->pinctrl)) {

		rc = PTR_ERR(rled_data->pinctrl);

		pr_err("failed  pinctrl, rc=%d\n", rc);

		goto data_free;

	}



	rled_data->active = pinctrl_lookup_state(rled_data->pinctrl, "pin_default");

	if (IS_ERR_OR_NULL(rled_data->active)) {

		rc = PTR_ERR(rled_data->active);

		pr_err("failed  pinctrl active state, rc=%d\n", rc);

		goto data_free;

	}



	rled_data->suspend =pinctrl_lookup_state(rled_data->pinctrl, "pin_sleep");



	if (IS_ERR_OR_NULL(rled_data->suspend)) {

		rc = PTR_ERR(rled_data->suspend);

		pr_err("failed  pinctrl suspend state, rc=%d\n", rc);

		goto data_free;

	}

	pr_err("rled_pinctrl t ok \n");



        

    rled_data->rled_trig_gpio= of_get_named_gpio(of_node,"yc,irq-gpio", 0);

    if (!gpio_is_valid(rled_data->rled_trig_gpio)) {

            pr_err("failed get   rled_trig_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



	

    // 1

    

    rled_data->chip1.flag_pin= of_get_named_gpio(of_node,"yc,flag1_gpio", 0);

    if (!gpio_is_valid(rled_data->chip1.flag_pin)) {

            pr_err("failed get   flag1_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



    rled_data->chip1.charge_en= of_get_named_gpio(of_node,"yc,chgen1_gpio", 0);

    if (!gpio_is_valid(rled_data->chip1.charge_en)) {

            pr_err("failed get   chgen1_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



    rled_data->chip1.flash_en= of_get_named_gpio(of_node,"yc,flash1_gpio", 0);

    if (!gpio_is_valid(rled_data->chip1.flash_en)) {

            pr_err("failed get   flash1_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



    rled_data->chip1.torch_en= of_get_named_gpio(of_node,"yc,torch1_gpio", 0);

    if (!gpio_is_valid(rled_data->chip1.torch_en)) {

            pr_err("failed get   torch1_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }

 

	

    // 2

    rled_data->chip2.flag_pin= of_get_named_gpio(of_node,"yc,flag2_gpio", 0);

    if (!gpio_is_valid(rled_data->chip2.flag_pin)) {

            pr_err("failed get   flag2_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



    rled_data->chip2.charge_en= of_get_named_gpio(of_node,"yc,chgen2_gpio", 0);

    if (!gpio_is_valid(rled_data->chip2.charge_en)) {

            pr_err("failed get   chgen2_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



    rled_data->chip2.flash_en= of_get_named_gpio(of_node,"yc,flash2_gpio", 0);

    if (!gpio_is_valid(rled_data->chip2.flash_en)) {

            pr_err("failed get  flash2_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



    rled_data->chip2.torch_en= of_get_named_gpio(of_node,"yc,torch2_gpio", 0);

    if (!gpio_is_valid(rled_data->chip2.torch_en)) {

            pr_err("failed get   torch2_gpio gpio, rc=%d\n", rc);

            rc = -EINVAL;

            goto data_free;

     }



	



	pr_err("rled_get_gpio  ok \n");



//----------------------------------------------------------

	if (gpio_is_valid(rled_data->rled_trig_gpio)) {

		

		pr_err("request for rled_trig_gpio  =%d ", rled_data->rled_trig_gpio);

		rc = devm_gpio_request(dev,rled_data->rled_trig_gpio, "rled_trig_gpio");

		if (rc) {

			pr_err("request for rled_trig_gpio failed, rc=%d\n", rc);

            goto data_free;

		}

        

	}

	



	if (gpio_is_valid(rled_data->chip1.flag_pin)) {

		

		rc = devm_gpio_request(dev,rled_data->chip1.flag_pin, "rled1_flag_pin");

		if (rc) {

			pr_err("request for rled1_flag_pin failed, rc=%d\n", rc);

            goto data_free;

		}

	}



	if (gpio_is_valid(rled_data->chip1.charge_en)) {

		

		rc = devm_gpio_request(dev,rled_data->chip1.charge_en, "rled1_charge_en");

		if (rc) {

			pr_err("request for rled1_charge_en failed, rc=%d\n", rc);

            goto data_free;

		}

	}



	if (gpio_is_valid(rled_data->chip1.flash_en)) {

		

		rc = devm_gpio_request(dev,rled_data->chip1.flash_en, "rled1_flash_en");

		if (rc) {

			pr_err("request for rled1_flash_en failed, rc=%d\n", rc);

            goto data_free;

		}

	}



	if (gpio_is_valid(rled_data->chip1.torch_en)) {

		

		rc = devm_gpio_request(dev,rled_data->chip1.torch_en, "rled1_torch_en");

		if (rc) {

			pr_err("request for rled1_torch_en failed, rc=%d\n", rc);

            goto data_free;

		}

	}



//

	if (gpio_is_valid(rled_data->chip2.flag_pin)) {

		

		rc = devm_gpio_request(dev,rled_data->chip2.flag_pin, "rled2_flag_pin");

		if (rc) {

			pr_err("request for rled2_flag_pin failed, rc=%d\n", rc);

            goto data_free;

		}

	}



	if (gpio_is_valid(rled_data->chip2.charge_en)) {

		

		rc = devm_gpio_request(dev,rled_data->chip2.charge_en, "rled2_charge_en");

		if (rc) {

			pr_err("request for rled2_charge_en failed, rc=%d\n", rc);

            goto data_free;

		}

	}



	if (gpio_is_valid(rled_data->chip2.flash_en)) {

		

		rc = devm_gpio_request(dev,rled_data->chip2.flash_en, "rled2_flash_en");

		if (rc) {

			pr_err("request for rled2_flash_en failed, rc=%d\n", rc);

            goto data_free;

		}

	}



	if (gpio_is_valid(rled_data->chip2.torch_en)) {

		

		rc = devm_gpio_request(dev,rled_data->chip2.torch_en, "rled2_torch_en");

		if (rc) {

			pr_err("request for rled2_torch_en failed, rc=%d\n", rc);

            goto data_free;

		}

	}





    pr_err("rled_gpio_request ok \n");



	



//------------

	rc=pinctrl_select_state(rled_data->pinctrl ,rled_data->active);

	if (rc)

       pr_err("rled failed to set pin state, rc=%d\n",rc);





	gpio_direction_output(rled_data->chip1.charge_en, 0);

	gpio_direction_output(rled_data->chip1.flash_en, 0);

	gpio_direction_output(rled_data->chip1.torch_en, 0);

    gpio_direction_input(rled_data->chip1.flag_pin);

	

	gpio_direction_output(rled_data->chip2.charge_en, 0);

	gpio_direction_output(rled_data->chip2.flash_en, 0);

	gpio_direction_output(rled_data->chip2.torch_en, 0);

    gpio_direction_input(rled_data->chip2.flag_pin);



    gpio_direction_input(rled_data->rled_trig_gpio);



	rled_data->irq = gpio_to_irq(rled_data->rled_trig_gpio);

	

	if (rled_data->irq < 0) {

		rled_data->irq=-1;

		pr_err(" rled_irq err\n");

	}

	else{

	    rled_data->grled_chipenabled=1;

        rled_data->grled_swflag=1;

		rc = devm_request_irq(dev,rled_data->irq, rled_irq_handler,IRQF_TRIGGER_RISING|IRQF_TRIGGER_FALLING , "rled", rled_data);//IRQF_TRIGGER_FALLING 

		//disable_irq(rled_data->irq);

		if(rc<0)

			pr_err("rled request_irq err   =%d  \n",rled_data->irq);

		

		pr_err(" yc request_irq =%d\n",rled_data->irq);





        rled_data->ktime = ktime_set(0, 5000000);  



        hrtimer_init( &rled_data->hr_timer, CLOCK_BOOTTIME, HRTIMER_MODE_REL);  



        rled_data->hr_timer.function = timercallback;  

 

        gpio_direction_output(rled_data->chip2.charge_en, 1);

		gpio_direction_output(rled_data->chip1.charge_en, 1);

	}





    device_create_file(dev, &dev_attr_rledtest); 

    device_create_file(dev, &dev_attr_rledchipenable); 

    device_create_file(dev, &dev_attr_grledswflag); 

    

	gprled_data=rled_data;



	mutex_init(&rled_data->change_lock);



	return rc;



data_free:

	kfree(rled_data);

	return rc;

  

}







static const struct of_device_id rled_test_match_table[] = {

	{	.compatible = "yc,rled_test",

	},

	{}

};



static struct platform_driver  local_rled_driver = {

	.driver		= {

		.name	= "yc,rled_test",

		.of_match_table = rled_test_match_table,

	},

	.probe		= rled_local_probe,

};







static int __init rled_local_init(void)

{

	return platform_driver_register(&local_rled_driver);



}



static void __exit rled_local_exit(void)

{

	return platform_driver_unregister(&local_rled_driver);

}





module_init(rled_local_init);

module_exit(rled_local_exit);

MODULE_DESCRIPTION("nordic52832 rled driver");

MODULE_LICENSE("GPL v2");