waterDataPreprocessing alarmDataOperation.c 唐峰 commit at 2021-03-30

waterDataPreprocessing/databaseOperation/alarmDataOperation.c

@@ -1106,3 +1106,131 @@ int gpmc_calc_timings(struct gpmc_timings *gpmc_t,
 	gpmc_calc_common_timings(gpmc_t, dev_t);
 
 	if (dev_t->sync_read)
+		gpmc_calc_sync_read_timings(gpmc_t, dev_t);
+	else
+		gpmc_calc_async_read_timings(gpmc_t, dev_t);
+
+	if (dev_t->sync_write)
+		gpmc_calc_sync_write_timings(gpmc_t, dev_t);
+	else
+		gpmc_calc_async_write_timings(gpmc_t, dev_t);
+
+	/* TODO: remove, see function definition */
+	gpmc_convert_ps_to_ns(gpmc_t);
+
+	return 0;
+}
+
+static int gpmc_probe(struct platform_device *pdev)
+{
+	int rc;
+	u32 l;
+	struct resource *res;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL)
+		return -ENOENT;
+
+	phys_base = res->start;
+	mem_size = resource_size(res);
+
+	gpmc_base = devm_request_and_ioremap(&pdev->dev, res);
+	if (!gpmc_base) {
+		dev_err(&pdev->dev, "error: request memory / ioremap\n");
+		return -EADDRNOTAVAIL;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (res == NULL)
+		dev_warn(&pdev->dev, "Failed to get resource: irq\n");
+	else
+		gpmc_irq = res->start;
+
+	gpmc_l3_clk = clk_get(&pdev->dev, "fck");
+	if (IS_ERR(gpmc_l3_clk)) {
+		dev_err(&pdev->dev, "error: clk_get\n");
+		gpmc_irq = 0;
+		return PTR_ERR(gpmc_l3_clk);
+	}
+
+	clk_prepare_enable(gpmc_l3_clk);
+
+	gpmc_dev = &pdev->dev;
+
+	l = gpmc_read_reg(GPMC_REVISION);
+	if (GPMC_REVISION_MAJOR(l) > 0x4)
+		gpmc_capability = GPMC_HAS_WR_ACCESS | GPMC_HAS_WR_DATA_MUX_BUS;
+	dev_info(gpmc_dev, "GPMC revision %d.%d\n", GPMC_REVISION_MAJOR(l),
+		 GPMC_REVISION_MINOR(l));
+
+	rc = gpmc_mem_init();
+	if (IS_ERR_VALUE(rc)) {
+		clk_disable_unprepare(gpmc_l3_clk);
+		clk_put(gpmc_l3_clk);
+		dev_err(gpmc_dev, "failed to reserve memory\n");
+		return rc;
+	}
+
+	if (IS_ERR_VALUE(gpmc_setup_irq()))
+		dev_warn(gpmc_dev, "gpmc_setup_irq failed\n");
+
+	return 0;
+}
+
+static int gpmc_remove(struct platform_device *pdev)
+{
+	gpmc_free_irq();
+	gpmc_mem_exit();
+	gpmc_dev = NULL;
+	return 0;
+}
+
+static struct platform_driver gpmc_driver = {
+	.probe		= gpmc_probe,
+	.remove		= gpmc_remove,
+	.driver		= {
+		.name	= DEVICE_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+
+static __init int gpmc_init(void)
+{
+	return platform_driver_register(&gpmc_driver);
+}
+
+static __exit void gpmc_exit(void)
+{
+	platform_driver_unregister(&gpmc_driver);
+
+}
+
+postcore_initcall(gpmc_init);
+module_exit(gpmc_exit);
+
+static int __init omap_gpmc_init(void)
+{
+	struct omap_hwmod *oh;
+	struct platform_device *pdev;
+	char *oh_name = "gpmc";
+
+	oh = omap_hwmod_lookup(oh_name);
+	if (!oh) {
+		pr_err("Could not look up %s\n", oh_name);
+		return -ENODEV;
+	}
+
+	pdev = omap_device_build(DEVICE_NAME, -1, oh, NULL, 0, NULL, 0, 0);
+	WARN(IS_ERR(pdev), "could not build omap_device for %s\n", oh_name);
+
+	return IS_ERR(pdev) ? PTR_ERR(pdev) : 0;
+}
+postcore_initcall(omap_gpmc_init);
+
+static irqreturn_t gpmc_handle_irq(int irq, void *dev)
+{
+	int i;
+	u32 regval;
+
+	regval = gpmc_read_reg(GPMC_IRQSTATUS);
+