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#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#define LINUX_RX_SIZE (96 * 1024)
#define LINUX_TX_SIZE (64 * 1024)
#define WILC1000_FW_SIZE (4 * 1024)
#define DECLARE_WILC_BUFFER(name) \
void *exported_ ## name = NULL;
#define MALLOC_WILC_BUFFER(name, size) \
exported_ ## name = kmalloc(size, GFP_KERNEL); \
if (!exported_ ## name) { \
printk("fail to alloc: %s memory\n", exported_ ## name); \
return -ENOBUFS; \
}
#define FREE_WILC_BUFFER(name) \
kfree(exported_ ## name);
/*
* Add necessary buffer pointers
*/
DECLARE_WILC_BUFFER(g_tx_buf)
DECLARE_WILC_BUFFER(g_rx_buf)
DECLARE_WILC_BUFFER(g_fw_buf)
void *get_tx_buffer(void)
{
return exported_g_tx_buf;
}
EXPORT_SYMBOL(get_tx_buffer);
void *get_rx_buffer(void)
{
return exported_g_rx_buf;
}
EXPORT_SYMBOL(get_rx_buffer);
void *get_fw_buffer(void)
{
return exported_g_fw_buf;
}
EXPORT_SYMBOL(get_fw_buffer);
static int __init wilc_module_init(void)
{
printk("wilc_module_init\n");
/*
* alloc necessary memory
*/
MALLOC_WILC_BUFFER(g_tx_buf, LINUX_TX_SIZE)
MALLOC_WILC_BUFFER(g_rx_buf, LINUX_RX_SIZE)
MALLOC_WILC_BUFFER(g_fw_buf, WILC1000_FW_SIZE)
return 0;
}
static void __exit wilc_module_deinit(void)
{
printk("wilc_module_deinit\n");
FREE_WILC_BUFFER(g_tx_buf)
FREE_WILC_BUFFER(g_rx_buf)
FREE_WILC_BUFFER(g_fw_buf)
return;
}
MODULE_LICENSE("Dual BSD/GPL");
MODULE_AUTHOR("Tony Cho");
MODULE_DESCRIPTION("WILC1xxx Memory Manager");
pure_initcall(wilc_module_init);
module_exit(wilc_module_deinit);
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