emi62: use request_firmware()

Signed-off-by: David Woodhouse <dwmw2@infradead.org>

9 files changed, 7100 insertions, 17747 deletions

diff --git a/drivers/usb/misc/emi62.c b/drivers/usb/misc/emi62.c
index 1a2b79ac5e10..20886c21e739 100644
--- a/drivers/usb/misc/emi62.c
+++ b/drivers/usb/misc/emi62.c
@@ -16,15 +16,8 @@
 #include <linux/module.h>
 #include <linux/usb.h>
 #include <linux/delay.h>
-
-#define MAX_INTEL_HEX_RECORD_LENGTH 16
-typedef struct _INTEL_HEX_RECORD
-{
-        __u32   length;
-        __u32   address;
-        __u32   type;
-        __u8    data[MAX_INTEL_HEX_RECORD_LENGTH];
-} INTEL_HEX_RECORD, *PINTEL_HEX_RECORD;
+#include <linux/firmware.h>
+#include <linux/ihex.h>
 
 /* include firmware (variables)*/
 
@@ -33,9 +26,9 @@ typedef struct _INTEL_HEX_RECORD
 //#undef SPDIF  /* if you want MIDI uncomment this line */ 
 
 #ifdef SPDIF
-#  include "emi62_fw_s.h" /* spdif fw */
+#define FIRMWARE_FW "emi62/spdif.fw"
 #else
-#  include "emi62_fw_m.h" /* midi fw */
+#define FIRMWARE_FW "emi62/midi.fw"
 #endif
 
 #define EMI62_VENDOR_ID                 0x086a  /* Emagic Soft-und Hardware GmBH */
@@ -48,7 +41,9 @@ typedef struct _INTEL_HEX_RECORD
 #define CPUCS_REG               0x7F92  /* EZ-USB Control and Status Register.  Bit 0 controls 8051 reset */ 
 #define INTERNAL_RAM(address)   (address <= MAX_INTERNAL_ADDRESS)
 
-static int emi62_writememory( struct usb_device *dev, int address, unsigned char *data, int length, __u8 bRequest);
+static int emi62_writememory(struct usb_device *dev, int address,
+                             const unsigned char *data, int length,
+                             __u8 bRequest);
 static int emi62_set_reset(struct usb_device *dev, unsigned char reset_bit);
 static int emi62_load_firmware (struct usb_device *dev);
 static int emi62_probe(struct usb_interface *intf, const struct usb_device_id *id);
@@ -58,7 +53,9 @@ static void __exit emi62_exit (void);
 
 
 /* thanks to drivers/usb/serial/keyspan_pda.c code */
-static int emi62_writememory (struct usb_device *dev, int address, unsigned char *data, int length, __u8 request)
+static int emi62_writememory(struct usb_device *dev, int address,
+                             const unsigned char *data, int length,
+                             __u8 request)
 {
         int result;
         unsigned char *buffer =  kmemdup(data, length, GFP_KERNEL);
@@ -91,9 +88,12 @@ static int emi62_set_reset (struct usb_device *dev, unsigned char reset_bit)
 
 static int emi62_load_firmware (struct usb_device *dev)
 {
+        const struct firmware *loader_fw = NULL;
+        const struct firmware *bitstream_fw = NULL;
+        const struct firmware *firmware_fw = NULL;
+        const struct ihex_binrec *rec;
         int err;
         int i;
-        int pos = 0;    /* Position in hex record */
         __u32 addr;     /* Address to write */
         __u8 *buf;
 
@@ -105,6 +105,22 @@ static int emi62_load_firmware (struct usb_device *dev)
                 goto wraperr;
         }
 
+        err = request_ihex_firmware(&loader_fw, "emi62/loader.fw", &dev->dev);
+        if (err)
+                goto nofw;
+
+        err = request_ihex_firmware(&bitstream_fw, "emi62/bitstream.fw",
+                                    &dev->dev);
+        if (err)
+                goto nofw;
+
+        err = request_ihex_firmware(&firmware_fw, FIRMWARE_FW, &dev->dev);
+        if (err) {
+        nofw:
+                err( "%s - request_firmware() failed", __func__);
+                goto wraperr;
+        }
+
         /* Assert reset (stop the CPU in the EMI) */
         err = emi62_set_reset(dev,1);
         if (err < 0) {
@@ -112,13 +128,18 @@ static int emi62_load_firmware (struct usb_device *dev)
                 goto wraperr;
         }
 
+        rec = (const struct ihex_binrec *)loader_fw->data;
+
         /* 1. We need to put the loader for the FPGA into the EZ-USB */
-        for (i=0; g_emi62_loader[i].type == 0; i++) {
-                err = emi62_writememory(dev, g_emi62_loader[i].address, g_emi62_loader[i].data, g_emi62_loader[i].length, ANCHOR_LOAD_INTERNAL);
+        while (rec) {
+                err = emi62_writememory(dev, be32_to_cpu(rec->addr),
+                                        rec->data, be16_to_cpu(rec->len),
+                                        ANCHOR_LOAD_INTERNAL);
                 if (err < 0) {
                         err("%s - error loading firmware: error = %d", __func__, err);
                         goto wraperr;
                 }
+                rec = ihex_next_binrec(rec);
         }
 
         /* De-assert reset (let the CPU run) */
@@ -132,15 +153,16 @@ static int emi62_load_firmware (struct usb_device *dev)
         /* 2. We upload the FPGA firmware into the EMI
          * Note: collect up to 1023 (yes!) bytes and send them with
          * a single request. This is _much_ faster! */
+        rec = (const struct ihex_binrec *)bitstream_fw->data;
         do {
                 i = 0;
-                addr = g_emi62bs[pos].address;
+                addr = be32_to_cpu(rec->addr);
 
                 /* intel hex records are terminated with type 0 element */
-                while ((g_emi62bs[pos].type == 0) && (i + g_emi62bs[pos].length < FW_LOAD_SIZE)) {
-                        memcpy(buf + i, g_emi62bs[pos].data, g_emi62bs[pos].length);
-                        i += g_emi62bs[pos].length;
-                        pos++;
+                while (rec && (i + be16_to_cpu(rec->len) < FW_LOAD_SIZE)) {
+                        memcpy(buf + i, rec->data, be16_to_cpu(rec->len));
+                        i += be16_to_cpu(rec->len);
+                        rec = ihex_next_binrec(rec);
                 }
                 err = emi62_writememory(dev, addr, buf, i, ANCHOR_LOAD_FPGA);
                 if (err < 0) {
@@ -157,8 +179,11 @@ static int emi62_load_firmware (struct usb_device *dev)
         }
 
         /* 3. We need to put the loader for the firmware into the EZ-USB (again...) */
-        for (i=0; g_emi62_loader[i].type == 0; i++) {
-                err = emi62_writememory(dev, g_emi62_loader[i].address, g_emi62_loader[i].data, g_emi62_loader[i].length, ANCHOR_LOAD_INTERNAL);
+        for (rec = (const struct ihex_binrec *)loader_fw->data;
+             rec; rec = ihex_next_binrec(rec)) {
+                err = emi62_writememory(dev, be32_to_cpu(rec->addr),
+                                        rec->data, be16_to_cpu(rec->len),
+                                        ANCHOR_LOAD_INTERNAL);
                 if (err < 0) {
                         err("%s - error loading firmware: error = %d", __func__, err);
                         goto wraperr;
@@ -175,29 +200,19 @@ static int emi62_load_firmware (struct usb_device *dev)