From c466774636b3cc43c2c304b44e52974d9d53f3e0 Mon Sep 17 00:00:00 2001
From: David Woodhouse <dwmw2@infradead.org>
Date: Mon, 23 Jun 2008 11:41:04 +0100
Subject: dabusb: use request_firmware()

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---
 drivers/media/video/dabusb.c | 44 ++++++++++++++++++++++++++++++++------------
 1 file changed, 32 insertions(+), 12 deletions(-)

(limited to 'drivers/media/video/dabusb.c')

diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index 8d1f8ee2a53..48f4b92a8f8 100644
--- a/drivers/media/video/dabusb.c
+++ b/drivers/media/video/dabusb.c
@@ -38,9 +38,10 @@
 #include <linux/delay.h>
 #include <linux/usb.h>
 #include <linux/mutex.h>
+#include <linux/firmware.h>
+#include <linux/ihex.h>
 
 #include "dabusb.h"
-#include "dabfirmware.h"
 
 /*
  * Version Information
@@ -297,7 +298,8 @@ static int dabusb_bulk (pdabusb_t s, pbulk_transfer_t pb)
 	return ret;
 }
 /* --------------------------------------------------------------------- */
-static int dabusb_writemem (pdabusb_t s, int pos, unsigned char *data, int len)
+static int dabusb_writemem (pdabusb_t s, int pos, const unsigned char *data,
+			    int len)
 {
 	int ret;
 	unsigned char *transfer_buffer =  kmalloc (len, GFP_KERNEL);
@@ -324,24 +326,35 @@ static int dabusb_8051_reset (pdabusb_t s, unsigned char reset_bit)
 static int dabusb_loadmem (pdabusb_t s, const char *fname)
 {
 	int ret;
-	PINTEL_HEX_RECORD ptr = firmware;
+	const struct ihex_binrec *rec;
+	const struct firmware *fw;
 
 	dbg("Enter dabusb_loadmem (internal)");
 
+	ret = request_ihex_firmware(&fw, "dabusb/firmware.fw", &s->usbdev->dev);
+	if (ret) {
+		err("Failed to load \"dabusb/firmware.fw\": %d\n", ret);
+		goto out;
+	}
 	ret = dabusb_8051_reset (s, 1);
-	while (ptr->Type == 0) {
 
-		dbg("dabusb_writemem: %04X %p %d)", ptr->Address, ptr->Data, ptr->Length);
+	for (rec = (const struct ihex_binrec *)fw->data; rec;
+	     rec = ihex_next_binrec(rec)) {
+		dbg("dabusb_writemem: %04X %p %d)", be32_to_cpu(rec->addr),
+		    rec->data, be16_to_cpu(rec->len));
 
-		ret = dabusb_writemem (s, ptr->Address, ptr->Data, ptr->Length);
+		ret = dabusb_writemem(s, be32_to_cpu(rec->addr), rec->data,
+				       be16_to_cpu(rec->len));
 		if (ret < 0) {
-			err("dabusb_writemem failed (%d %04X %p %d)", ret, ptr->Address, ptr->Data, ptr->Length);
+			err("dabusb_writemem failed (%d %04X %p %d)", ret,
+			    be32_to_cpu(rec->addr), rec->data,
+			    be16_to_cpu(rec->len));
 			break;
 		}
-		ptr++;
 	}
 	ret = dabusb_8051_reset (s, 0);
-
+	release_firmware(fw);
+ out:
 	dbg("dabusb_loadmem: exit");
 
 	return ret;
@@ -376,9 +389,9 @@ static int dabusb_fpga_init (pdabusb_t s, pbulk_transfer_t b)
 static int dabusb_fpga_download (pdabusb_t s, const char *fname)
 {
 	pbulk_transfer_t b = kmalloc (sizeof (bulk_transfer_t), GFP_KERNEL);
+	const struct firmware *fw;
 	unsigned int blen, n;
 	int ret;
-	unsigned char *buf = bitstream;
 
 	dbg("Enter dabusb_fpga_download (internal)");
 
@@ -387,10 +400,16 @@ static int dabusb_fpga_download (pdabusb_t s, const char *fname)
 		return -ENOMEM;
 	}
 
+	ret = request_firmware(&fw, "dabusb/bitstream.bin", &s->usbdev->dev);
+	if (ret) {
+		err("Failed to load \"dabusb/bitstream.bin\": %d\n", ret);
+		return ret;
+	}
+
 	b->pipe = 1;
 	ret = dabusb_fpga_clear (s, b);
 	mdelay (10);
-	blen = buf[73] + (buf[72] << 8);
+	blen = fw->data[73] + (fw->data[72] << 8);
 
 	dbg("Bitstream len: %i", blen);
 
@@ -402,7 +421,7 @@ static int dabusb_fpga_download (pdabusb_t s, const char *fname)
 	for (n = 0; n <= blen + 60; n += 60) {
 		// some cclks for startup
 		b->size = 64;
-		memcpy (b->data + 4, buf + 74 + n, 60);
+		memcpy (b->data + 4, fw->data + 74 + n, 60);
 		ret = dabusb_bulk (s, b);
 		if (ret < 0) {
 			err("dabusb_bulk failed.");
@@ -413,6 +432,7 @@ static int dabusb_fpga_download (pdabusb_t s, const char *fname)
 
 	ret = dabusb_fpga_init (s, b);
 	kfree (b);
+	release_firmware(fw);
 
 	dbg("exit dabusb_fpga_download");
 
-- 
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