ip2: use request_firmware()

Converted with help from Jaswinder Singh

Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Alan Cox <alan@redhat.com>

drivers/char/ip2/ip2base.c

@@ -21,10 +21,9 @@
 #endif
 
 #include "ip2types.h"		
-#include "fip_firm.h"		// the meat
 
 int
-ip2_loadmain(int *, int  *, unsigned char *, int ); // ref into ip2main.c
+ip2_loadmain(int *, int *); // ref into ip2main.c
 
 /* Note: Add compiled in defaults to these arrays, not to the structure
 	in ip2.h any longer.  That structure WILL get overridden
@@ -52,7 +51,7 @@ static int __init ip2_init(void)
 		irq[0] = irq[1] = irq[2] = irq[3] = 0;
 	}
 
-	return ip2_loadmain(io,irq,(unsigned char *)fip_firm,sizeof(fip_firm));
+	return ip2_loadmain(io, irq);
 }
 module_init(ip2_init);
 

drivers/char/ip2/ip2main.c

@@ -98,6 +98,8 @@
 #include <linux/major.h>
 #include <linux/wait.h>
 #include <linux/device.h>
+#include <linux/firmware.h>
+#include <linux/platform_device.h>
 
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
@@ -155,9 +157,7 @@ static char *pcDriver_name   = "ip2";
 static char *pcIpl    		 = "ip2ipl";
 
 // cheezy kludge or genius - you decide?
-int ip2_loadmain(int *, int *, unsigned char *, int);
+int ip2_loadmain(int *, int *);
-static unsigned char *Fip_firmware;
-static int Fip_firmware_size;
 
 /***********************/
 /* Function Prototypes */
@@ -208,7 +208,7 @@ static int ip2_ipl_open(struct inode *, struct file *);
 static int DumpTraceBuffer(char __user *, int);
 static int DumpFifoBuffer( char __user *, int);
 
-static void ip2_init_board(int);
+static void ip2_init_board(int, const struct firmware *);
 static unsigned short find_eisa_board(int);
 
 /***************/
@@ -474,8 +474,27 @@ static const struct tty_operations ip2_ops = {
 /* SA_RANDOM   - can be source for cert. random number generators */
 #define IP2_SA_FLAGS	0
 
+
+static const struct firmware *ip2_request_firmware(void)
+{
+	struct platform_device *pdev;
+	const struct firmware *fw;
+
+	pdev = platform_device_register_simple("ip2", 0, NULL, 0);
+	if (IS_ERR(pdev)) {
+		printk(KERN_ERR "Failed to register platform device for ip2\n");
+		return NULL;
+	}
+	if (request_firmware(&fw, "intelliport2.bin", &pdev->dev)) {
+		printk(KERN_ERR "Failed to load firmware 'intelliport2.bin'\n");
+		fw = NULL;
+	}
+	platform_device_unregister(pdev);
+	return fw;
+}
+
 int
-ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize) 
+ip2_loadmain(int *iop, int *irqp)
 {
 	int i, j, box;
 	int err = 0;
@@ -483,6 +502,7 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
 	i2eBordStrPtr pB = NULL;
 	int rc = -1;
 	static struct pci_dev *pci_dev_i = NULL;
+	const struct firmware *fw = NULL;
 
 	ip2trace (ITRC_NO_PORT, ITRC_INIT, ITRC_ENTER, 0 );
 
@@ -516,9 +536,6 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
 	}
 	poll_only = !poll_only;
 
-	Fip_firmware = firmware;
-	Fip_firmware_size = firmsize;
-
 	/* Announce our presence */
 	printk( KERN_INFO "%s version %s\n", pcName, pcVersion );
 
@@ -638,10 +655,18 @@ ip2_loadmain(int *iop, int *irqp, unsigned char *firmware, int firmsize)
 		}
 	}
 	for ( i = 0; i < IP2_MAX_BOARDS; ++i ) {
+		/* We don't want to request the firmware unless we have at
+		   least one board */
 		if ( i2BoardPtrTable[i] != NULL ) {
-			ip2_init_board( i );
+			if (!fw)
+				fw = ip2_request_firmware();
+			if (!fw)
+				break;
+			ip2_init_board(i, fw);
 		}
 	}
+	if (fw)
+		release_firmware(fw);
 
 	ip2trace (ITRC_NO_PORT, ITRC_INIT, 2, 0 );
 
@@ -769,7 +794,7 @@ out:
 /* are reported on the console.                                               */
 /******************************************************************************/
 static void
-ip2_init_board( int boardnum )
+ip2_init_board(int boardnum, const struct firmware *fw)
 {
 	int i;
 	int nports = 0, nboxes = 0;
@@ -789,7 +814,7 @@ ip2_init_board( int boardnum )
 		goto err_initialize;
 	}
 
-	if ( iiDownloadAll ( pB, (loadHdrStrPtr)Fip_firmware, 1, Fip_firmware_size )
+	if ( iiDownloadAll ( pB, (loadHdrStrPtr)fw->data, 1, fw->size )
 	    != II_DOWN_GOOD ) {
 		printk ( KERN_ERR "IP2: failed to download loadware\n" );
 		goto err_release_region;

firmware/Makefile

@@ -21,6 +21,7 @@ fw-external-y := $(subst ",,$(CONFIG_EXTRA_FIRMWARE))
 # But be aware that the config file might not be included at all.
 
 fw-shipped-$(CONFIG_ATM_AMBASSADOR) += atmsar11.fw
+fw-shipped-$(CONFIG_COMPUTONE) += intelliport2.bin
 fw-shipped-$(CONFIG_DVB_TTUSB_BUDGET) += ttusb-budget/dspbootcode.bin
 fw-shipped-$(CONFIG_SMCTR) += tr_smctr.bin
 fw-shipped-$(CONFIG_SND_KORG1212) += korg/k1212.dsp

firmware/WHENCE

@@ -226,3 +226,13 @@ Debug loader claims the following behaviour:
 Converted from Intel HEX files, used in our binary representation of ihex.
 
 --------------------------------------------------------------------------
+
+Driver: ip2 -- Computone IntelliPort Plus serial device
+
+File: intelliport2.bin
+
+Licence: Unknown
+
+Found in hex form in kernel source.
+
+--------------------------------------------------------------------------