yam: use request_firmware
[linux-2.6.git] / drivers / net / hamradio / yam.c
index 500a40b..b066919 100644 (file)
@@ -55,6 +55,8 @@
 #include <asm/system.h>
 #include <linux/interrupt.h>
 #include <linux/ioport.h>
+#include <linux/firmware.h>
+#include <linux/platform_device.h>
 
 #include <linux/netdevice.h>
 #include <linux/if_arp.h>
@@ -71,8 +73,6 @@
 #include <linux/init.h>
 
 #include <linux/yam.h>
-#include "yam9600.h"
-#include "yam1200.h"
 
 /* --------------------------------------------------------------------- */
 
@@ -82,6 +82,9 @@ static const char yam_drvinfo[] __initdata = KERN_INFO \
 
 /* --------------------------------------------------------------------- */
 
+#define FIRMWARE_9600  "yam/9600.bin"
+#define FIRMWARE_1200  "yam/1200.bin"
+
 #define YAM_9600       1
 #define YAM_1200       2
 
@@ -342,9 +345,51 @@ static int fpga_write(int iobase, unsigned char wrd)
        return 0;
 }
 
-static unsigned char *add_mcs(unsigned char *bits, int bitrate)
+/*
+ * predef should be 0 for loading user defined mcs
+ * predef should be YAM_1200 for loading predef 1200 mcs
+ * predef should be YAM_9600 for loading predef 9600 mcs
+ */
+static unsigned char *add_mcs(unsigned char *bits, int bitrate,
+                             unsigned int predef)
 {
+       const char *fw_name[2] = {FIRMWARE_9600, FIRMWARE_1200};
+       const struct firmware *fw;
+       struct platform_device *pdev;
        struct yam_mcs *p;
+       int err;
+
+       switch (predef) {
+       case 0:
+               fw = NULL;
+               break;
+       case YAM_1200:
+       case YAM_9600:
+               predef--;
+               pdev = platform_device_register_simple("yam", 0, NULL, 0);
+               if (IS_ERR(pdev)) {
+                       printk(KERN_ERR "yam: Failed to register firmware\n");
+                       return NULL;
+               }
+               err = request_firmware(&fw, fw_name[predef], &pdev->dev);
+               platform_device_unregister(pdev);
+               if (err) {
+                       printk(KERN_ERR "Failed to load firmware \"%s\"\n",
+                              fw_name[predef]);
+                       return NULL;
+               }
+               if (fw->size != YAM_FPGA_SIZE) {
+                       printk(KERN_ERR "Bogus length %zu in firmware \"%s\"\n",
+                              fw->size, fw_name[predef]);
+                       release_firmware(fw);
+                       return NULL;
+               }
+               bits = (unsigned char *)fw->data;
+               break;
+       default:
+               printk(KERN_ERR "yam: Invalid predef number %u\n", predef);
+               return NULL;
+       }
 
        /* If it already exists, replace the bit data */
        p = yam_data;
@@ -359,6 +404,7 @@ static unsigned char *add_mcs(unsigned char *bits, int bitrate)
        /* Allocate a new mcs */
        if ((p = kmalloc(sizeof(struct yam_mcs), GFP_KERNEL)) == NULL) {
                printk(KERN_WARNING "YAM: no memory to allocate mcs\n");
+               release_firmware(fw);
                return NULL;
        }
        memcpy(p->bits, bits, YAM_FPGA_SIZE);
@@ -366,6 +412,7 @@ static unsigned char *add_mcs(unsigned char *bits, int bitrate)
        p->next = yam_data;
        yam_data = p;
 
+       release_firmware(fw);
        return p->bits;
 }
 
@@ -383,9 +430,11 @@ static unsigned char *get_mcs(int bitrate)
        /* Load predefined mcs data */
        switch (bitrate) {
        case 1200:
-               return add_mcs(bits_1200, bitrate);
+               /* setting predef as YAM_1200 for loading predef 1200 mcs */
+               return add_mcs(NULL, bitrate, YAM_1200);
        default:
-               return add_mcs(bits_9600, bitrate);
+               /* setting predef as YAM_9600 for loading predef 9600 mcs */
+               return add_mcs(NULL, bitrate, YAM_9600);
        }
 }
 
@@ -936,7 +985,8 @@ static int yam_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
                        kfree(ym);
                        return -EINVAL;
                }
-               add_mcs(ym->bits, ym->bitrate);
+               /* setting predef as 0 for loading userdefined mcs data */
+               add_mcs(ym->bits, ym->bitrate, 0);
                kfree(ym);
                break;
 
@@ -1159,6 +1209,8 @@ static void __exit yam_cleanup_driver(void)
 MODULE_AUTHOR("Frederic Rible F1OAT frible@teaser.fr");
 MODULE_DESCRIPTION("Yam amateur radio modem driver");
 MODULE_LICENSE("GPL");
+MODULE_FIRMWARE(FIRMWARE_1200);
+MODULE_FIRMWARE(FIRMWARE_9600);
 
 module_init(yam_init_driver);
 module_exit(yam_cleanup_driver);