147 lines
4.0 KiB
C
147 lines
4.0 KiB
C
/* linux/arch/arm/mach-msm/board-htcleo-wifi.c (from board-mahimahi-wifi.c)
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*/
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#include <linux/kernel.h>
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#include <linux/init.h>
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#include <linux/platform_device.h>
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#include <linux/delay.h>
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#include <linux/err.h>
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#include <asm/mach-types.h>
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#include <asm/gpio.h>
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#include <asm/io.h>
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#include <linux/skbuff.h>
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#include <linux/wlan_plat.h>
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#include "board-htcleo.h"
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int htcleo_wifi_power(int on);
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int htcleo_wifi_reset(int on);
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int htcleo_wifi_set_carddetect(int on);
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#define PREALLOC_WLAN_NUMBER_OF_SECTIONS 4
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#define PREALLOC_WLAN_NUMBER_OF_BUFFERS 160
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#define PREALLOC_WLAN_SECTION_HEADER 24
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#define WLAN_SECTION_SIZE_0 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 128)
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#define WLAN_SECTION_SIZE_1 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 128)
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#define WLAN_SECTION_SIZE_2 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 512)
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#define WLAN_SECTION_SIZE_3 (PREALLOC_WLAN_NUMBER_OF_BUFFERS * 1024)
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#define WLAN_SKB_BUF_NUM 16
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static struct sk_buff *wlan_static_skb[WLAN_SKB_BUF_NUM];
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typedef struct wifi_mem_prealloc_struct {
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void *mem_ptr;
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unsigned long size;
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} wifi_mem_prealloc_t;
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static wifi_mem_prealloc_t wifi_mem_array[PREALLOC_WLAN_NUMBER_OF_SECTIONS] = {
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{ NULL, (WLAN_SECTION_SIZE_0 + PREALLOC_WLAN_SECTION_HEADER) },
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{ NULL, (WLAN_SECTION_SIZE_1 + PREALLOC_WLAN_SECTION_HEADER) },
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{ NULL, (WLAN_SECTION_SIZE_2 + PREALLOC_WLAN_SECTION_HEADER) },
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{ NULL, (WLAN_SECTION_SIZE_3 + PREALLOC_WLAN_SECTION_HEADER) }
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};
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static void *htcleo_wifi_mem_prealloc(int section, unsigned long size)
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{
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if (section == PREALLOC_WLAN_NUMBER_OF_SECTIONS)
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return wlan_static_skb;
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if ((section < 0) || (section > PREALLOC_WLAN_NUMBER_OF_SECTIONS))
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return NULL;
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if (wifi_mem_array[section].size < size)
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return NULL;
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return wifi_mem_array[section].mem_ptr;
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}
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int __init htcleo_init_wifi_mem(void)
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{
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int i;
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for(i=0;( i < WLAN_SKB_BUF_NUM );i++) {
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if (i < (WLAN_SKB_BUF_NUM/2))
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wlan_static_skb[i] = dev_alloc_skb(4096);
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else
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wlan_static_skb[i] = dev_alloc_skb(8192);
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}
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for(i=0;( i < PREALLOC_WLAN_NUMBER_OF_SECTIONS );i++) {
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wifi_mem_array[i].mem_ptr = kmalloc(wifi_mem_array[i].size,
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GFP_KERNEL);
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if (wifi_mem_array[i].mem_ptr == NULL)
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return -ENOMEM;
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}
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return 0;
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}
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static struct resource htcleo_wifi_resources[] = {
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[0] = {
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.name = "bcm4329_wlan_irq",
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.start = MSM_GPIO_TO_INT(HTCLEO_GPIO_WIFI_IRQ),
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.end = MSM_GPIO_TO_INT(HTCLEO_GPIO_WIFI_IRQ),
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.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHLEVEL,
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},
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};
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static struct wifi_platform_data htcleo_wifi_control = {
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.set_power = htcleo_wifi_power,
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.set_reset = htcleo_wifi_reset,
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.set_carddetect = htcleo_wifi_set_carddetect,
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.mem_prealloc = htcleo_wifi_mem_prealloc,
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};
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static struct platform_device htcleo_wifi_device = {
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.name = "bcm4329_wlan",
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.id = 1,
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.num_resources = ARRAY_SIZE(htcleo_wifi_resources),
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.resource = htcleo_wifi_resources,
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.dev = {
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.platform_data = &htcleo_wifi_control,
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},
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};
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extern unsigned char *get_wifi_nvs_ram(void);
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extern int wifi_calibration_size_set(void);
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static unsigned htcleo_wifi_update_nvs(char *str, int add_flag)
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{
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#define NVS_LEN_OFFSET 0x0C
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#define NVS_DATA_OFFSET 0x40
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unsigned char *ptr;
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unsigned len;
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if (!str)
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return -EINVAL;
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ptr = get_wifi_nvs_ram();
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/* Size in format LE assumed */
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memcpy(&len, ptr + NVS_LEN_OFFSET, sizeof(len));
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/* if the last byte in NVRAM is 0, trim it */
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if (ptr[NVS_DATA_OFFSET + len - 1] == 0)
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len -= 1;
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if (add_flag) {
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strcpy(ptr + NVS_DATA_OFFSET + len, str);
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len += strlen(str);
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} else {
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if (strnstr(ptr + NVS_DATA_OFFSET, str, len))
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len -= strlen(str);
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}
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memcpy(ptr + NVS_LEN_OFFSET, &len, sizeof(len));
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wifi_calibration_size_set();
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return 0;
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}
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static int __init htcleo_wifi_init(void)
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{
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int ret;
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if (!machine_is_htcleo())
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return 0;
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printk("%s: start\n", __func__);
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// htcleo_wifi_update_nvs("sd_oobonly=1\n");
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htcleo_init_wifi_mem();
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ret = platform_device_register(&htcleo_wifi_device);
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return ret;
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}
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device_initcall(htcleo_wifi_init);
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