2 * Copyright (c) 2010 Broadcom Corporation
4 * Permission to use, copy, modify, and/or distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
11 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
13 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
14 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 #include <linux/types.h>
17 #include <linux/sched.h> /* request_irq() */
18 #include <linux/netdevice.h>
19 #include <net/cfg80211.h>
21 #include <brcmu_utils.h>
22 #include <brcmu_wifi.h>
23 #include "sdio_host.h"
24 #include <bcmsdbus.h> /* bcmsdh to/from specific controller APIs */
25 #include <sdiovar.h> /* to get msglevel bit values */
27 #include <linux/mmc/core.h>
28 #include <linux/mmc/card.h>
29 #include <linux/mmc/sdio_func.h>
30 #include <linux/mmc/sdio_ids.h>
32 #include "dngl_stats.h"
35 #if !defined(SDIO_VENDOR_ID_BROADCOM)
36 #define SDIO_VENDOR_ID_BROADCOM 0x02d0
37 #endif /* !defined(SDIO_VENDOR_ID_BROADCOM) */
39 #define SDIO_DEVICE_ID_BROADCOM_DEFAULT 0x0000
41 #if !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)
42 #define SDIO_DEVICE_ID_BROADCOM_4325_SDGWB 0x0492 /* BCM94325SDGWB */
43 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) */
44 #if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
45 #define SDIO_DEVICE_ID_BROADCOM_4325 0x0493
46 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325) */
47 #if !defined(SDIO_DEVICE_ID_BROADCOM_4329)
48 #define SDIO_DEVICE_ID_BROADCOM_4329 0x4329
49 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
50 #if !defined(SDIO_DEVICE_ID_BROADCOM_4319)
51 #define SDIO_DEVICE_ID_BROADCOM_4319 0x4319
52 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
54 #include <bcmsdh_sdmmc.h>
57 #include <wl_cfg80211.h>
59 extern void sdioh_sdmmc_devintr_off(sdioh_info_t *sd);
60 extern void sdioh_sdmmc_devintr_on(sdioh_info_t *sd);
62 int sdio_function_init(void);
63 void sdio_function_cleanup(void);
65 /* module param defaults */
66 static int clockoverride;
68 module_param(clockoverride, int, 0644);
69 MODULE_PARM_DESC(clockoverride, "SDIO card clock override");
71 PBCMSDH_SDMMC_INSTANCE gInstance;
73 /* Maximum number of bcmsdh_sdmmc devices supported by driver */
74 #define BCMSDH_SDMMC_MAX_DEVICES 1
76 extern int bcmsdh_probe(struct device *dev);
77 extern int bcmsdh_remove(struct device *dev);
78 struct device sdmmc_dev;
80 static int bcmsdh_sdmmc_probe(struct sdio_func *func,
81 const struct sdio_device_id *id)
84 static struct sdio_func sdio_func_0;
85 sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
86 sd_trace(("sdio_bcmsdh: func->class=%x\n", func->class));
87 sd_trace(("sdio_vendor: 0x%04x\n", func->vendor));
88 sd_trace(("sdio_device: 0x%04x\n", func->device));
89 sd_trace(("Function#: 0x%04x\n", func->num));
93 sdio_func_0.card = func->card;
94 gInstance->func[0] = &sdio_func_0;
95 if (func->device == 0x4) { /* 4318 */
96 gInstance->func[2] = NULL;
97 sd_trace(("NIC found, calling bcmsdh_probe...\n"));
98 ret = bcmsdh_probe(&sdmmc_dev);
102 gInstance->func[func->num] = func;
104 if (func->num == 2) {
105 wl_cfg80211_sdio_func(func);
106 sd_trace(("F2 found, calling bcmsdh_probe...\n"));
107 ret = bcmsdh_probe(&sdmmc_dev);
113 static void bcmsdh_sdmmc_remove(struct sdio_func *func)
115 sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
116 sd_info(("sdio_bcmsdh: func->class=%x\n", func->class));
117 sd_info(("sdio_vendor: 0x%04x\n", func->vendor));
118 sd_info(("sdio_device: 0x%04x\n", func->device));
119 sd_info(("Function#: 0x%04x\n", func->num));
121 if (func->num == 2) {
122 sd_trace(("F2 found, calling bcmsdh_remove...\n"));
123 bcmsdh_remove(&sdmmc_dev);
127 /* devices we support, null terminated */
128 static const struct sdio_device_id bcmsdh_sdmmc_ids[] = {
129 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_DEFAULT)},
131 (SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)},
132 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325)},
133 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
134 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4319)},
135 { /* end: all zeroes */ },
138 MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);
140 static struct sdio_driver bcmsdh_sdmmc_driver = {
141 .probe = bcmsdh_sdmmc_probe,
142 .remove = bcmsdh_sdmmc_remove,
144 .id_table = bcmsdh_sdmmc_ids,
152 int sdioh_sdmmc_osinit(sdioh_info_t *sd)
154 struct sdos_info *sdos;
156 sdos = kmalloc(sizeof(struct sdos_info), GFP_ATOMIC);
157 sd->sdos_info = (void *)sdos;
162 spin_lock_init(&sdos->lock);
166 void sdioh_sdmmc_osfree(sdioh_info_t *sd)
168 struct sdos_info *sdos;
169 ASSERT(sd && sd->sdos_info);
171 sdos = (struct sdos_info *)sd->sdos_info;
175 /* Interrupt enable/disable */
176 SDIOH_API_RC sdioh_interrupt_set(sdioh_info_t *sd, bool enable)
179 struct sdos_info *sdos;
181 sd_trace(("%s: %s\n", __func__, enable ? "Enabling" : "Disabling"));
183 sdos = (struct sdos_info *)sd->sdos_info;
186 #if !defined(OOB_INTR_ONLY)
187 if (enable && !(sd->intr_handler && sd->intr_handler_arg)) {
188 sd_err(("%s: no handler registered, will not enable\n",
190 return SDIOH_API_RC_FAIL;
192 #endif /* !defined(OOB_INTR_ONLY) */
194 /* Ensure atomicity for enable/disable calls */
195 spin_lock_irqsave(&sdos->lock, flags);
197 sd->client_intr_enabled = enable;
199 sdioh_sdmmc_devintr_on(sd);
201 sdioh_sdmmc_devintr_off(sd);
203 spin_unlock_irqrestore(&sdos->lock, flags);
205 return SDIOH_API_RC_SUCCESS;
211 int sdio_function_init(void)
214 sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
216 gInstance = kzalloc(sizeof(BCMSDH_SDMMC_INSTANCE), GFP_KERNEL);
220 memset(&sdmmc_dev, 0, sizeof(sdmmc_dev));
221 error = sdio_register_driver(&bcmsdh_sdmmc_driver);
229 extern int bcmsdh_remove(struct device *dev);
230 void sdio_function_cleanup(void)
232 sd_trace(("%s Enter\n", __func__));
234 sdio_unregister_driver(&bcmsdh_sdmmc_driver);