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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 | #include "wilc_wfi_netdevice.h"
#include <linux/mmc/sdio_func.h>
#include <linux/mmc/card.h>
#include <linux/mmc/sdio_ids.h>
#include <linux/mmc/sdio.h>
#include <linux/mmc/host.h>
#define SDIO_MODALIAS "wilc1000_sdio"
#if defined(CUSTOMER_PLATFORM)
/* TODO : User have to stable bus clock as user's environment. */
#ifdef MAX_BUS_SPEED
#define MAX_SPEED MAX_BUS_SPEED
#else
#define MAX_SPEED 50000000
#endif
#else
#define MAX_SPEED (6 * 1000000) /* Max 50M */
#endif
struct wilc_sdio {
struct sdio_func *func;
struct wilc *wilc;
};
struct sdio_func *local_sdio_func;
static unsigned int sdio_default_speed;
#define SDIO_VENDOR_ID_WILC 0x0296
#define SDIO_DEVICE_ID_WILC 0x5347
static const struct sdio_device_id wilc_sdio_ids[] = {
{ SDIO_DEVICE(SDIO_VENDOR_ID_WILC, SDIO_DEVICE_ID_WILC) },
{ },
};
static void wilc_sdio_interrupt(struct sdio_func *func)
{
struct wilc_sdio *wl_sdio;
wl_sdio = sdio_get_drvdata(func);
#ifndef WILC_SDIO_IRQ_GPIO
sdio_release_host(func);
wilc_handle_isr(wl_sdio->wilc);
sdio_claim_host(func);
#endif
}
int linux_sdio_cmd52(sdio_cmd52_t *cmd)
{
struct sdio_func *func = g_linux_wlan->wilc_sdio_func;
int ret;
u8 data;
sdio_claim_host(func);
func->num = cmd->function;
if (cmd->read_write) { /* write */
if (cmd->raw) {
sdio_writeb(func, cmd->data, cmd->address, &ret);
data = sdio_readb(func, cmd->address, &ret);
cmd->data = data;
} else {
sdio_writeb(func, cmd->data, cmd->address, &ret);
}
} else { /* read */
data = sdio_readb(func, cmd->address, &ret);
cmd->data = data;
}
sdio_release_host(func);
if (ret < 0) {
PRINT_ER("wilc_sdio_cmd52..failed, err(%d)\n", ret);
return 0;
}
return 1;
}
int linux_sdio_cmd53(sdio_cmd53_t *cmd)
{
struct sdio_func *func = g_linux_wlan->wilc_sdio_func;
int size, ret;
sdio_claim_host(func);
func->num = cmd->function;
func->cur_blksize = cmd->block_size;
if (cmd->block_mode)
size = cmd->count * cmd->block_size;
else
size = cmd->count;
if (cmd->read_write) { /* write */
ret = sdio_memcpy_toio(func, cmd->address, (void *)cmd->buffer, size);
} else { /* read */
ret = sdio_memcpy_fromio(func, (void *)cmd->buffer, cmd->address, size);
}
sdio_release_host(func);
if (ret < 0) {
PRINT_ER("wilc_sdio_cmd53..failed, err(%d)\n", ret);
return 0;
}
return 1;
}
static int linux_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
{
struct wilc_sdio *wl_sdio;
struct wilc *wilc;
PRINT_D(INIT_DBG, "probe function\n");
wl_sdio = kzalloc(sizeof(struct wilc_sdio), GFP_KERNEL);
if (!wl_sdio)
return -ENOMEM;
PRINT_D(INIT_DBG, "Initializing netdev\n");
local_sdio_func = func;
if (wilc_netdev_init(&wilc)) {
PRINT_ER("Couldn't initialize netdev\n");
kfree(wl_sdio);
return -1;
}
wl_sdio->func = func;
wl_sdio->wilc = wilc;
sdio_set_drvdata(func, wl_sdio);
printk("Driver Initializing success\n");
return 0;
}
static void linux_sdio_remove(struct sdio_func *func)
{
struct wilc_sdio *wl_sdio;
wl_sdio = sdio_get_drvdata(func);
wl_wlan_cleanup();
kfree(wl_sdio);
}
struct sdio_driver wilc_bus = {
.name = SDIO_MODALIAS,
.id_table = wilc_sdio_ids,
.probe = linux_sdio_probe,
.remove = linux_sdio_remove,
};
int enable_sdio_interrupt(void)
{
int ret = 0;
#ifndef WILC_SDIO_IRQ_GPIO
sdio_claim_host(local_sdio_func);
ret = sdio_claim_irq(local_sdio_func, wilc_sdio_interrupt);
sdio_release_host(local_sdio_func);
if (ret < 0) {
PRINT_ER("can't claim sdio_irq, err(%d)\n", ret);
ret = -EIO;
}
#endif
return ret;
}
void disable_sdio_interrupt(void)
{
#ifndef WILC_SDIO_IRQ_GPIO
int ret;
PRINT_D(INIT_DBG, "disable_sdio_interrupt IN\n");
sdio_claim_host(local_sdio_func);
ret = sdio_release_irq(local_sdio_func);
if (ret < 0) {
PRINT_ER("can't release sdio_irq, err(%d)\n", ret);
}
sdio_release_host(local_sdio_func);
PRINT_D(INIT_DBG, "disable_sdio_interrupt OUT\n");
#endif
}
static int linux_sdio_set_speed(int speed)
{
struct mmc_ios ios;
sdio_claim_host(local_sdio_func);
memcpy((void *)&ios, (void *)&local_sdio_func->card->host->ios, sizeof(struct mmc_ios));
local_sdio_func->card->host->ios.clock = speed;
ios.clock = speed;
local_sdio_func->card->host->ops->set_ios(local_sdio_func->card->host, &ios);
sdio_release_host(local_sdio_func);
PRINT_INFO(INIT_DBG, "@@@@@@@@@@@@ change SDIO speed to %d @@@@@@@@@\n", speed);
return 1;
}
static int linux_sdio_get_speed(void)
{
return local_sdio_func->card->host->ios.clock;
}
int linux_sdio_init(void *pv)
{
/**
* TODO :
**/
sdio_default_speed = linux_sdio_get_speed();
return 1;
}
void linux_sdio_deinit(void *pv)
{
/**
* TODO :
**/
sdio_unregister_driver(&wilc_bus);
}
int linux_sdio_set_max_speed(void)
{
return linux_sdio_set_speed(MAX_SPEED);
}
int linux_sdio_set_default_speed(void)
{
return linux_sdio_set_speed(sdio_default_speed);
}
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