yam: use request_firmware (a7a5eb9d) · Commits · e / devices / android_kernel_teracube_emerald

drivers/net/hamradio/yam.c

+58 −6

Original line number	Diff line number	Diff line
		@@ -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);