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-rw-r--r--fpga/ebaz4205/linux-6.16.4-pq/master/jmm-vcap301
1 files changed, 301 insertions, 0 deletions
diff --git a/fpga/ebaz4205/linux-6.16.4-pq/master/jmm-vcap b/fpga/ebaz4205/linux-6.16.4-pq/master/jmm-vcap
new file mode 100644
index 0000000..7d1cc2f
--- /dev/null
+++ b/fpga/ebaz4205/linux-6.16.4-pq/master/jmm-vcap
@@ -0,0 +1,301 @@
+diff --git a/.config b/.config
+index 93fa18afe..470123376 100644
+--- a/.config
++++ b/.config
+@@ -1792,6 +1792,7 @@ CONFIG_PCI_ENDPOINT_TEST=m
+ # CONFIG_VCPU_STALL_DETECTOR is not set
+ # CONFIG_NSM is not set
+ # CONFIG_MCHP_LAN966X_PCI is not set
++CONFIG_MISC_JMM_VCAP=y
+ # CONFIG_C2PORT is not set
+
+ #
+diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
+index b9ca56930..626152d80 100644
+--- a/drivers/misc/Kconfig
++++ b/drivers/misc/Kconfig
+@@ -644,6 +644,9 @@ config MCHP_LAN966X_PCI
+ - lan966x-miim (MDIO_MSCC_MIIM)
+ - lan966x-switch (LAN966X_SWITCH)
+
++config MISC_JMM_VCAP
++ tristate "JMM_VCAP Driver"
++
+ source "drivers/misc/c2port/Kconfig"
+ source "drivers/misc/eeprom/Kconfig"
+ source "drivers/misc/cb710/Kconfig"
+diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
+index 917b9a718..cef74a483 100644
+--- a/drivers/misc/Makefile
++++ b/drivers/misc/Makefile
+@@ -66,6 +66,7 @@ obj-$(CONFIG_GP_PCI1XXXX) += mchp_pci1xxxx/
+ obj-$(CONFIG_VCPU_STALL_DETECTOR) += vcpu_stall_detector.o
+ obj-$(CONFIG_TMR_MANAGER) += xilinx_tmr_manager.o
+ obj-$(CONFIG_TMR_INJECT) += xilinx_tmr_inject.o
++obj-$(CONFIG_MISC_JMM_VCAP) += jmm_vcap.o
+ obj-$(CONFIG_TPS6594_ESM) += tps6594-esm.o
+ obj-$(CONFIG_TPS6594_PFSM) += tps6594-pfsm.o
+ obj-$(CONFIG_NSM) += nsm.o
+diff --git a/drivers/misc/jmm_vcap.c b/drivers/misc/jmm_vcap.c
+new file mode 100644
+index 000000000..2fe454b5f
+--- /dev/null
++++ b/drivers/misc/jmm_vcap.c
+@@ -0,0 +1,257 @@
++#include <linux/miscdevice.h>
++#include <linux/fs.h>
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/uaccess.h>
++#include <linux/io.h>
++#include <linux/platform_device.h>
++#include <linux/pm_runtime.h>
++#include <linux/of.h>
++#include <linux/gpio.h>
++
++
++
++static struct jmm_vcap {
++ struct gpio_desc *gpio;
++ int gpio_state;
++ uint8_t *ocm_base;
++ size_t ocm_len;
++} jmm_vcap;
++
++
++/*
++** This function will be called when we open the Misc device file
++*/
++static int jmm_vcap_open(struct inode *inode, struct file *file)
++{
++ pr_info("jmm_vcap device open\n");
++ return 0;
++}
++
++/*
++** This function will be called when we close the Misc Device file
++*/
++static int jmm_vcap_close(struct inode *inodep, struct file *filp)
++{
++ pr_info("jmm_vcap device close\n");
++ return 0;
++}
++
++/*
++** This function will be called when we write the Misc Device file
++*/
++static ssize_t jmm_vcap_write(struct file *file, const char __user *buf,
++ size_t len, loff_t *ppos)
++{
++ pr_info("jmm_vcap device write\n");
++
++ /* We are not doing anything with this data now */
++
++ return -ENODEV;
++}
++
++/*
++** This function will be called when we read the Misc Device file
++*/
++static ssize_t jmm_vcap_read(struct file *filp, char __user *buf,
++ size_t count, loff_t *f_pos)
++{
++
++ if (*f_pos>=jmm_vcap.ocm_len) return 0;
++
++ if ((*f_pos+count)>jmm_vcap.ocm_len) {
++ count=jmm_vcap.ocm_len-*f_pos;
++ }
++
++ if (copy_to_user(buf, jmm_vcap.ocm_base+(*f_pos), count))
++ return -EFAULT;
++
++ (*f_pos) += count;
++
++ return count;
++}
++
++static loff_t jmm_vcap_llseek(struct file *filp, loff_t offset, int whence)
++{
++loff_t new_offset;
++
++
++switch(whence) {
++case SEEK_SET:
++ new_offset=offset;
++ break;
++case SEEK_CUR:
++ new_offset=filp->f_pos + offset;
++ break;
++case SEEK_END:
++ new_offset=jmm_vcap.ocm_len + offset;
++ break;
++default:
++ return -EINVAL;
++}
++
++
++if (new_offset<0)
++ return -EINVAL;
++if (new_offset>jmm_vcap.ocm_len)
++ return -EINVAL;
++
++filp->f_pos=new_offset;
++
++return new_offset;
++}
++
++
++//File operation structure
++static const struct file_operations fops = {
++ .owner = THIS_MODULE,
++ .write = jmm_vcap_write,
++ .read = jmm_vcap_read,
++ .open = jmm_vcap_open,
++ .release = jmm_vcap_close,
++ .llseek = jmm_vcap_llseek,
++};
++
++//Misc device structure
++struct miscdevice jmm_vcap_device = {
++ .minor = MISC_DYNAMIC_MINOR,
++ .name = "jmm_vcap",
++ .fops = &fops,
++};
++
++
++static const struct of_device_id jmm_vcap_of_match[] = {
++ { .compatible = "jmm,video-capture-device" },
++ { /* end of table */ }
++};
++MODULE_DEVICE_TABLE(of, jmm_vcap_of_match);
++
++
++static int jmm_vcap_probe(struct platform_device *pdev)
++{
++ struct resource *res;
++ const struct of_device_id *match;
++ uint8_t *ptr;
++
++
++ match = of_match_node(jmm_vcap_of_match, pdev->dev.of_node);
++ pr_info("jmm_vcap match %px\n",match);
++ printk(KERN_ERR "jmm_vcap" "jmm_vcap match %px\n",match);
++ if (!match) {
++ dev_err(&pdev->dev, "of_match_node() failed\n");
++ printk(KERN_ERR "jmm_vcap" "of_match_node() failed\n");
++ return -EINVAL;
++ }
++
++ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
++ if (!res) {
++ dev_err(&pdev->dev, "can't get parent mmio range\n");
++ printk(KERN_ERR "jmm_vcap" "can't get parent mmio range\n");
++ return -EINVAL;
++ }
++
++ jmm_vcap.gpio = devm_gpiod_get(&(pdev->dev), NULL, GPIOD_OUT_LOW);
++ if (IS_ERR(jmm_vcap.gpio)) {
++ dev_err(&pdev->dev, "can't get enable gpio\n");
++ printk(KERN_ERR "jmm_vcap" "can't get enable gpio\n");
++ return -EINVAL;
++ }
++
++ jmm_vcap.ocm_len=res->end - res->start;
++ jmm_vcap.ocm_len++;
++ pr_info("jmm_vcap resource indicates length of 0x%x\n",jmm_vcap.ocm_len);
++ printk(KERN_ERR "jmm_vcap" "jmm_vcap resource indicates length of 0x%x\n",jmm_vcap.ocm_len);
++
++ ptr = devm_ioremap_resource(&pdev->dev, res);
++ pr_info("jmm_vcap devm_ioremap_resource() gives %px\n",ptr);
++ printk(KERN_ERR "jmm_vcap" "jmm_vcap devm_ioremap_resource() gives %px\n",ptr);
++
++ if (IS_ERR(ptr))
++ return PTR_ERR(ptr);
++
++ jmm_vcap.ocm_base=ptr;
++
++ gpiod_set_value(jmm_vcap.gpio,1);
++
++ return 0;
++}
++
++/**
++ * zynq_gpio_remove - Driver removal function
++ * @pdev: platform device instance
++ *
++ * Return: 0 always
++ */
++static void jmm_vcap_remove(struct platform_device *pdev)
++{
++ //struct zynq_gpio *gpio = platform_get_drvdata(pdev);
++
++ jmm_vcap.ocm_base=NULL;
++}
++
++static struct platform_driver jmm_vcap_driver = {
++ .driver = {
++ .name = "jmm-vcap",
++ .of_match_table = jmm_vcap_of_match,
++ },
++ .probe = jmm_vcap_probe,
++ .remove = jmm_vcap_remove,
++};
++
++
++static int __init jmm_vcap_init(void)
++{
++ int error;
++
++ //jmm_vcap_driver->driver.owner = THIS_MODULE;
++ //jmm_vcap_driver->driver.bus=&platform_bus_type;
++
++ error=platform_driver_register(&jmm_vcap_driver);
++ if (error) {
++ pr_err("platform_driver_register failed!!!\n");
++ printk(KERN_ERR "jmm_vcap" "platform_driver_register failed!!!\n");
++ return error;
++ }
++
++ error = misc_register(&jmm_vcap_device);
++ if (error) {
++ platform_driver_unregister(&jmm_vcap_driver);
++ pr_err("misc_register failed!!!\n");
++ printk(KERN_ERR "jmm_vcap" "misc_register failed!!!\n");
++ return error;
++ }
++
++ pr_info("misc_register init done!!!\n");
++ printk(KERN_ERR "jmm_vcap" "misc_register init done!!!\n");
++
++#if 0
++ jmm_vcap = ioremap(0xfffc0000,0x40000);
++ pr_info("jmm_vcap mapped at %px\n",jmm_vcap);
++#endif
++
++ return 0;
++}
++
++static void __exit jmm_vcap_exit(void)
++{
++ misc_deregister(&jmm_vcap_device);
++ platform_driver_unregister(&jmm_vcap_driver);
++
++ pr_info("misc_register exit done!!!\n");
++
++#if 0
++ if (jmm_vcap.ocm_base) iounmap(jmm_vcap.ocm_base);
++#endif
++}
++
++module_init(jmm_vcap_init)
++module_exit(jmm_vcap_exit)
++
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("meh");
++MODULE_DESCRIPTION("jmm_vcap driver");
++MODULE_VERSION("1.00");
++
++
++
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