[media] add blackfin capture bridge driver

This is a v4l2 bridge driver for Blackfin video capture device, support ppi and eppi interface.

Signed-off-by: Scott Jiang <scott.jiang.linux@gmail.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

2 files changed, 111 insertions, 0 deletions

diff --git a/include/media/blackfin/bfin_capture.h b/include/media/blackfin/bfin_capture.h
new file mode 100644
index 000000000000..2038a8a3f8aa
--- /dev/null
+++ b/include/media/blackfin/bfin_capture.h
@@ -0,0 +1,37 @@
+#ifndef _BFIN_CAPTURE_H_
+#define _BFIN_CAPTURE_H_
+
+#include <linux/i2c.h>
+
+struct v4l2_input;
+struct ppi_info;
+
+struct bcap_route {
+        u32 input;
+        u32 output;
+};
+
+struct bfin_capture_config {
+        /* card name */
+        char *card_name;
+        /* inputs available at the sub device */
+        struct v4l2_input *inputs;
+        /* number of inputs supported */
+        int num_inputs;
+        /* routing information for each input */
+        struct bcap_route *routes;
+        /* i2c bus adapter no */
+        int i2c_adapter_id;
+        /* i2c subdevice board info */
+        struct i2c_board_info board_info;
+        /* ppi board info */
+        const struct ppi_info *ppi_info;
+        /* ppi control */
+        unsigned long ppi_control;
+        /* ppi interrupt mask */
+        u32 int_mask;
+        /* horizontal blanking clocks */
+        int blank_clocks;
+};
+
+#endif
diff --git a/include/media/blackfin/ppi.h b/include/media/blackfin/ppi.h
new file mode 100644
index 000000000000..8f72f8a0b3d0
--- /dev/null
+++ b/include/media/blackfin/ppi.h
@@ -0,0 +1,74 @@
+/*
+ * Analog Devices PPI header file
+ *
+ * Copyright (c) 2011 Analog Devices Inc.
+ *
+ * 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.
+ *
+ * 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.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#ifndef _PPI_H_
+#define _PPI_H_
+
+#include <linux/interrupt.h>
+
+#ifdef EPPI_EN
+#define PORT_EN EPPI_EN
+#define DMA32 0
+#define PACK_EN PACKEN
+#endif
+
+struct ppi_if;
+
+struct ppi_params {
+        int width;
+        int height;
+        int bpp;
+        unsigned long ppi_control;
+        u32 int_mask;
+        int blank_clocks;
+};
+
+struct ppi_ops {
+        int (*attach_irq)(struct ppi_if *ppi, irq_handler_t handler);
+        void (*detach_irq)(struct ppi_if *ppi);
+        int (*start)(struct ppi_if *ppi);
+        int (*stop)(struct ppi_if *ppi);
+        int (*set_params)(struct ppi_if *ppi, struct ppi_params *params);
+        void (*update_addr)(struct ppi_if *ppi, unsigned long addr);
+};
+
+enum ppi_type {
+        PPI_TYPE_PPI,
+        PPI_TYPE_EPPI,
+};
+
+struct ppi_info {
+        enum ppi_type type;
+        int dma_ch;
+        int irq_err;
+        void __iomem *base;
+        const unsigned short *pin_req;
+};
+
+struct ppi_if {
+        unsigned long ppi_control;
+        const struct ppi_ops *ops;
+        const struct ppi_info *info;
+        bool err_int;
+        void *priv;
+};
+
+struct ppi_if *ppi_create_instance(const struct ppi_info *info);
+void ppi_delete_instance(struct ppi_if *ppi);
+#endif