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 <linux/mmc/core.h>
20 #include <linux/mmc/card.h>
21 #include <linux/mmc/sdio_func.h>
22 #include <linux/mmc/sdio_ids.h>
23 #include <net/cfg80211.h>
26 #include <brcmu_utils.h>
27 #include <brcmu_wifi.h>
28 #include "sdio_host.h"
29 #include "bcmsdbus.h" /* bcmsdh to/from specific controller APIs */
30 #include "sdiovar.h" /* to get msglevel bit values */
31 #include "dngl_stats.h"
34 #if !defined(SDIO_VENDOR_ID_BROADCOM)
35 #define SDIO_VENDOR_ID_BROADCOM 0x02d0
36 #endif /* !defined(SDIO_VENDOR_ID_BROADCOM) */
38 #define SDIO_DEVICE_ID_BROADCOM_DEFAULT 0x0000
40 #if !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)
41 #define SDIO_DEVICE_ID_BROADCOM_4325_SDGWB 0x0492 /* BCM94325SDGWB */
42 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325_SDGWB) */
43 #if !defined(SDIO_DEVICE_ID_BROADCOM_4325)
44 #define SDIO_DEVICE_ID_BROADCOM_4325 0x0493
45 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4325) */
46 #if !defined(SDIO_DEVICE_ID_BROADCOM_4329)
47 #define SDIO_DEVICE_ID_BROADCOM_4329 0x4329
48 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
49 #if !defined(SDIO_DEVICE_ID_BROADCOM_4319)
50 #define SDIO_DEVICE_ID_BROADCOM_4319 0x4319
51 #endif /* !defined(SDIO_DEVICE_ID_BROADCOM_4329) */
53 #include <bcmsdh_sdmmc.h>
56 #include "wl_cfg80211.h"
58 extern void brcmf_sdioh_dev_intr_off(struct sdioh_info *sd);
59 extern void brcmf_sdioh_dev_intr_on(struct sdioh_info *sd);
61 int brcmf_sdio_function_init(void);
62 void brcmf_sdio_function_cleanup(void);
64 /* module param defaults */
65 static int clockoverride;
67 module_param(clockoverride, int, 0644);
68 MODULE_PARM_DESC(clockoverride, "SDIO card clock override");
70 PBCMSDH_SDMMC_INSTANCE gInstance;
72 /* Maximum number of bcmsdh_sdmmc devices supported by driver */
73 #define BCMSDH_SDMMC_MAX_DEVICES 1
75 extern int brcmf_sdio_probe(struct device *dev);
76 extern int brcmf_sdio_remove(struct device *dev);
77 struct device sdmmc_dev;
79 static int brcmf_ops_sdio_probe(struct sdio_func *func,
80 const struct sdio_device_id *id)
83 static struct sdio_func sdio_func_0;
84 sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
85 sd_trace(("sdio_bcmsdh: func->class=%x\n", func->class));
86 sd_trace(("sdio_vendor: 0x%04x\n", func->vendor));
87 sd_trace(("sdio_device: 0x%04x\n", func->device));
88 sd_trace(("Function#: 0x%04x\n", func->num));
92 sdio_func_0.card = func->card;
93 gInstance->func[0] = &sdio_func_0;
94 if (func->device == 0x4) { /* 4318 */
95 gInstance->func[2] = NULL;
96 sd_trace(("NIC found, calling brcmf_sdio_probe...\n"));
97 ret = brcmf_sdio_probe(&sdmmc_dev);
101 gInstance->func[func->num] = func;
103 if (func->num == 2) {
104 wl_cfg80211_sdio_func(func);
105 sd_trace(("F2 found, calling brcmf_sdio_probe...\n"));
106 ret = brcmf_sdio_probe(&sdmmc_dev);
112 static void brcmf_ops_sdio_remove(struct sdio_func *func)
114 sd_trace(("%s Enter\n", __func__));
115 sd_info(("func->class=%x\n", func->class));
116 sd_info(("sdio_vendor: 0x%04x\n", func->vendor));
117 sd_info(("sdio_device: 0x%04x\n", func->device));
118 sd_info(("Function#: 0x%04x\n", func->num));
120 if (func->num == 2) {
121 sd_trace(("F2 found, calling brcmf_sdio_remove...\n"));
122 brcmf_sdio_remove(&sdmmc_dev);
126 /* devices we support, null terminated */
127 static const struct sdio_device_id bcmsdh_sdmmc_ids[] = {
128 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_DEFAULT)},
130 (SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325_SDGWB)},
131 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4325)},
132 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4329)},
133 {SDIO_DEVICE(SDIO_VENDOR_ID_BROADCOM, SDIO_DEVICE_ID_BROADCOM_4319)},
134 { /* end: all zeroes */ },
137 MODULE_DEVICE_TABLE(sdio, bcmsdh_sdmmc_ids);
139 static struct sdio_driver bcmsdh_sdmmc_driver = {
140 .probe = brcmf_ops_sdio_probe,
141 .remove = brcmf_ops_sdio_remove,
143 .id_table = bcmsdh_sdmmc_ids,
147 struct sdioh_info *sd;
151 int brcmf_sdioh_osinit(struct sdioh_info *sd)
153 struct sdos_info *sdos;
155 sdos = kmalloc(sizeof(struct sdos_info), GFP_ATOMIC);
156 sd->sdos_info = (void *)sdos;
161 spin_lock_init(&sdos->lock);
165 void brcmf_sdioh_osfree(struct sdioh_info *sd)
167 struct sdos_info *sdos;
168 ASSERT(sd && sd->sdos_info);
170 sdos = (struct sdos_info *)sd->sdos_info;
174 /* Interrupt enable/disable */
175 int brcmf_sdioh_interrupt_set(struct sdioh_info *sd, bool enable)
178 struct sdos_info *sdos;
180 sd_trace(("%s: %s\n", __func__, enable ? "Enabling" : "Disabling"));
182 sdos = (struct sdos_info *)sd->sdos_info;
185 if (enable && !(sd->intr_handler && sd->intr_handler_arg)) {
186 sd_err(("%s: no handler registered, will not enable\n",
188 return SDIOH_API_RC_FAIL;
191 /* Ensure atomicity for enable/disable calls */
192 spin_lock_irqsave(&sdos->lock, flags);
194 sd->client_intr_enabled = enable;
196 brcmf_sdioh_dev_intr_on(sd);
198 brcmf_sdioh_dev_intr_off(sd);
200 spin_unlock_irqrestore(&sdos->lock, flags);
202 return SDIOH_API_RC_SUCCESS;
208 int brcmf_sdio_function_init(void)
211 sd_trace(("bcmsdh_sdmmc: %s Enter\n", __func__));
213 gInstance = kzalloc(sizeof(BCMSDH_SDMMC_INSTANCE), GFP_KERNEL);
217 memset(&sdmmc_dev, 0, sizeof(sdmmc_dev));
218 error = sdio_register_driver(&bcmsdh_sdmmc_driver);
226 extern int brcmf_sdio_remove(struct device *dev);
227 void brcmf_sdio_function_cleanup(void)
229 sd_trace(("%s Enter\n", __func__));
231 sdio_unregister_driver(&bcmsdh_sdmmc_driver);