From a7a5eb9d4eb9908709df66e8f8f1724b5b108258 Mon Sep 17 00:00:00 2001 From: Jaswinder Singh Rajput Date: Mon, 30 Mar 2009 18:17:21 +0530 Subject: yam: use request_firmware Added predef variable in add_mcs() to support predefined mcs data Signed-off-by: Jaswinder Singh Rajput --- drivers/net/hamradio/yam.c | 64 +++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 58 insertions(+), 6 deletions(-) (limited to 'drivers/net/hamradio/yam.c') diff --git a/drivers/net/hamradio/yam.c b/drivers/net/hamradio/yam.c index 500a40b..b066919 100644 --- a/drivers/net/hamradio/yam.c +++ b/drivers/net/hamradio/yam.c @@ -55,6 +55,8 @@ #include #include #include +#include +#include #include #include @@ -71,8 +73,6 @@ #include #include -#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); -- cgit v1.1