1 #include "wilc_wfi_netdevice.h"
3 #include <linux/mmc/sdio_func.h>
4 #include <linux/mmc/card.h>
5 #include <linux/mmc/sdio_ids.h>
6 #include <linux/mmc/sdio.h>
7 #include <linux/mmc/host.h>
11 #define SDIO_MODALIAS "wilc1000_sdio"
13 #if defined(CUSTOMER_PLATFORM)
14 /* TODO : User have to stable bus clock as user's environment. */
16 #define MAX_SPEED MAX_BUS_SPEED
18 #define MAX_SPEED 50000000
21 #define MAX_SPEED (6 * 1000000) /* Max 50M */
25 struct sdio_func *func;
29 struct sdio_func *local_sdio_func;
31 static unsigned int sdio_default_speed;
33 #define SDIO_VENDOR_ID_WILC 0x0296
34 #define SDIO_DEVICE_ID_WILC 0x5347
36 static const struct sdio_device_id wilc_sdio_ids[] = {
37 { SDIO_DEVICE(SDIO_VENDOR_ID_WILC, SDIO_DEVICE_ID_WILC) },
42 static void wilc_sdio_interrupt(struct sdio_func *func)
44 struct wilc_sdio *wl_sdio;
46 wl_sdio = sdio_get_drvdata(func);
48 #ifndef WILC_SDIO_IRQ_GPIO
49 sdio_release_host(func);
50 wilc_handle_isr(wl_sdio->wilc);
51 sdio_claim_host(func);
56 int linux_sdio_cmd52(sdio_cmd52_t *cmd)
58 struct sdio_func *func = g_linux_wlan->wilc_sdio_func;
62 sdio_claim_host(func);
64 func->num = cmd->function;
65 if (cmd->read_write) { /* write */
67 sdio_writeb(func, cmd->data, cmd->address, &ret);
68 data = sdio_readb(func, cmd->address, &ret);
71 sdio_writeb(func, cmd->data, cmd->address, &ret);
74 data = sdio_readb(func, cmd->address, &ret);
78 sdio_release_host(func);
81 PRINT_ER("wilc_sdio_cmd52..failed, err(%d)\n", ret);
88 int linux_sdio_cmd53(sdio_cmd53_t *cmd)
90 struct sdio_func *func = g_linux_wlan->wilc_sdio_func;
93 sdio_claim_host(func);
95 func->num = cmd->function;
96 func->cur_blksize = cmd->block_size;
98 size = cmd->count * cmd->block_size;
102 if (cmd->read_write) { /* write */
103 ret = sdio_memcpy_toio(func, cmd->address, (void *)cmd->buffer, size);
105 ret = sdio_memcpy_fromio(func, (void *)cmd->buffer, cmd->address, size);
108 sdio_release_host(func);
112 PRINT_ER("wilc_sdio_cmd53..failed, err(%d)\n", ret);
119 static int linux_sdio_probe(struct sdio_func *func, const struct sdio_device_id *id)
121 struct wilc_sdio *wl_sdio;
124 PRINT_D(INIT_DBG, "probe function\n");
125 wl_sdio = kzalloc(sizeof(struct wilc_sdio), GFP_KERNEL);
129 PRINT_D(INIT_DBG, "Initializing netdev\n");
130 local_sdio_func = func;
131 if (wilc_netdev_init(&wilc)) {
132 PRINT_ER("Couldn't initialize netdev\n");
136 wl_sdio->func = func;
137 wl_sdio->wilc = wilc;
138 sdio_set_drvdata(func, wl_sdio);
140 printk("Driver Initializing success\n");
144 static void linux_sdio_remove(struct sdio_func *func)
146 struct wilc_sdio *wl_sdio;
148 wl_sdio = sdio_get_drvdata(func);
153 struct sdio_driver wilc_bus = {
154 .name = SDIO_MODALIAS,
155 .id_table = wilc_sdio_ids,
156 .probe = linux_sdio_probe,
157 .remove = linux_sdio_remove,
160 int enable_sdio_interrupt(void)
163 #ifndef WILC_SDIO_IRQ_GPIO
165 sdio_claim_host(local_sdio_func);
166 ret = sdio_claim_irq(local_sdio_func, wilc_sdio_interrupt);
167 sdio_release_host(local_sdio_func);
170 PRINT_ER("can't claim sdio_irq, err(%d)\n", ret);
177 void disable_sdio_interrupt(void)
180 #ifndef WILC_SDIO_IRQ_GPIO
183 PRINT_D(INIT_DBG, "disable_sdio_interrupt IN\n");
185 sdio_claim_host(local_sdio_func);
186 ret = sdio_release_irq(local_sdio_func);
188 PRINT_ER("can't release sdio_irq, err(%d)\n", ret);
190 sdio_release_host(local_sdio_func);
192 PRINT_D(INIT_DBG, "disable_sdio_interrupt OUT\n");
196 static int linux_sdio_set_speed(int speed)
200 sdio_claim_host(local_sdio_func);
202 memcpy((void *)&ios, (void *)&local_sdio_func->card->host->ios, sizeof(struct mmc_ios));
203 local_sdio_func->card->host->ios.clock = speed;
205 local_sdio_func->card->host->ops->set_ios(local_sdio_func->card->host, &ios);
206 sdio_release_host(local_sdio_func);
207 PRINT_INFO(INIT_DBG, "@@@@@@@@@@@@ change SDIO speed to %d @@@@@@@@@\n", speed);
212 static int linux_sdio_get_speed(void)
214 return local_sdio_func->card->host->ios.clock;
217 int linux_sdio_init(void *pv)
225 sdio_default_speed = linux_sdio_get_speed();
229 void linux_sdio_deinit(void *pv)
237 sdio_unregister_driver(&wilc_bus);
240 int linux_sdio_set_max_speed(void)
242 return linux_sdio_set_speed(MAX_SPEED);
245 int linux_sdio_set_default_speed(void)
247 return linux_sdio_set_speed(sdio_default_speed);