summaryrefslogtreecommitdiffstats
path: root/include/media/blackfin/ppi.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/media/blackfin/ppi.h')
-rw-r--r--include/media/blackfin/ppi.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/include/media/blackfin/ppi.h b/include/media/blackfin/ppi.h
new file mode 100644
index 00000000000..8f72f8a0b3d
--- /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