Initial file dump from open source releaseHEADmaster

1 files changed, 101 insertions, 0 deletions

diff --git a/drivers/media/sprd_isp/isp2.0/pike/src/isp_k_isr.c b/drivers/media/sprd_isp/isp2.0/pike/src/isp_k_isr.c
new file mode 100644
index 00000000..bcec6583
--- /dev/null
+++ b/drivers/media/sprd_isp/isp2.0/pike/src/isp_k_isr.c
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2012 Spreadtrum Communications Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/uaccess.h>
+#include <linux/sprd_mm.h>
+#include <video/sprd_isp.h>
+#include <linux/delay.h>
+#include "isp_reg.h"
+#include "isp_drv.h"
+
+#define ISP_TIME_OUT_MAX (500)
+
+int32_t isp_get_int_num(struct isp_node *node)
+{
+
+	node->irq_val1 = REG_RD(ISP_INT_INT0);
+	node->irq_val2 = REG_RD(ISP_INT_INT1);
+	node->irq_val3 = REG_RD(ISP_INT_INT2);
+
+	if ((0 == node->irq_val1)
+		&& (0 == node->irq_val2)
+		&& (0 == node->irq_val3)) {
+		printk("isp_get_int_num: int error.\n");
+		return -1;
+	}
+
+	REG_WR(ISP_INT_CLR0, ISP_IRQ_HW_MASK);
+	REG_WR(ISP_INT_CLR1, ISP_IRQ_HW_MASK);
+	REG_WR(ISP_INT_CLR2, ISP_IRQ_HW_MASK);
+
+	return 0;
+}
+
+void isp_clr_int(void)
+{
+	REG_WR(ISP_INT_CLR0, ISP_IRQ_HW_MASK);
+	REG_WR(ISP_INT_CLR1, ISP_IRQ_HW_MASK);
+	REG_WR(ISP_INT_CLR2, ISP_IRQ_HW_MASK);
+}
+
+void isp_en_irq(uint32_t irq_mode)
+{
+	REG_WR(ISP_INT_CLR0, ISP_IRQ_HW_MASK);
+	REG_WR(ISP_INT_CLR1, ISP_IRQ_HW_MASK);
+	REG_WR(ISP_INT_CLR2, ISP_IRQ_HW_MASK);
+
+	switch(irq_mode) {
+	case ISP_INT_VIDEO_MODE:
+		REG_WR(ISP_INT_EN0, ISP_INT_DCAMERA_SOF | ISP_INT_AEM_DONE | ISP_INT_AFM_RGB_DONE | ISP_INT_AFL_DONE);
+		REG_WR(ISP_INT_EN1, 0);
+		REG_WR(ISP_INT_EN2, 0);
+		break;
+	case ISP_INT_CAPTURE_MODE:
+		REG_WR(ISP_INT_EN0, ISP_INT_STORE_DONE);
+		REG_WR(ISP_INT_EN1, 0);
+		REG_WR(ISP_INT_EN2, 0);
+		break;
+	case ISP_INT_CLEAR_MODE:
+		REG_WR(ISP_INT_EN0, 0);
+		REG_WR(ISP_INT_EN1, 0);
+		REG_WR(ISP_INT_EN2, 0);
+		break;
+	default:
+		printk("isp_en_irq: irq_mode error.\n");
+		break;
+	}
+}
+
+int32_t isp_axi_bus_waiting(void)
+{
+	int32_t ret = 0;
+	uint32_t reg_value = 0;
+	uint32_t time_out_cnt = 0;
+
+	REG_OWR(ISP_AXI_ITI2AXIM_CTRL, BIT_18);
+
+	reg_value = REG_RD(ISP_INT_STATUS);
+	while ((0x00 == (reg_value & BIT_3))
+		&& (time_out_cnt < ISP_TIME_OUT_MAX)) {
+		time_out_cnt++;
+		udelay(50);
+		reg_value = REG_RD(ISP_INT_STATUS);
+	}
+
+	if (time_out_cnt >= ISP_TIME_OUT_MAX) {
+		ret = -1;
+		printk("isp_axi_bus_waiting: time out.\n");
+	}
+
+	return ret;
+}