dabusb: use request_firmware()

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>

1 files changed, 32 insertions, 12 deletions

diff --git a/drivers/media/video/dabusb.c b/drivers/media/video/dabusb.c
index 8d1f8ee2a533..48f4b92a8f8b 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");