staging: brcm80211: remove EMBEDDED_PLATFORM macro definition
[cascardo/linux.git] / drivers / staging / brcm80211 / brcmfmac / dhd_cdc.c
index ba5a5cb..a766707 100644 (file)
 
 #include <linux/types.h>
 #include <linux/netdevice.h>
-#include <bcmdefs.h>
+#include <linux/sched.h>
+#include <defs.h>
+
+#include <brcmu_utils.h>
+#include <brcmu_wifi.h>
+
+#include "dngl_stats.h"
+#include "dhd.h"
+#include "dhd_proto.h"
+#include "dhd_bus.h"
+#include "dhd_dbg.h"
+
+struct brcmf_proto_cdc_ioctl {
+       u32 cmd;        /* ioctl command value */
+       u32 len;        /* lower 16: output buflen;
+                        * upper 16: input buflen (excludes header) */
+       u32 flags;      /* flag defns given below */
+       u32 status;     /* status code returned from the device */
+};
+
+/* Max valid buffer size that can be sent to the dongle */
+#define CDC_MAX_MSG_SIZE       (ETH_FRAME_LEN+ETH_FCS_LEN)
+
+/* CDC flag definitions */
+#define CDCF_IOC_ERROR         0x01            /* 1=ioctl cmd failed */
+#define CDCF_IOC_SET           0x02            /* 0=get, 1=set cmd */
+#define CDCF_IOC_IF_MASK       0xF000          /* I/F index */
+#define CDCF_IOC_IF_SHIFT      12
+#define CDCF_IOC_ID_MASK       0xFFFF0000      /* id an ioctl pairing */
+#define CDCF_IOC_ID_SHIFT      16              /* ID Mask shift bits */
+#define CDC_IOC_ID(flags)      \
+       (((flags) & CDCF_IOC_ID_MASK) >> CDCF_IOC_ID_SHIFT)
+#define CDC_SET_IF_IDX(hdr, idx) \
+       ((hdr)->flags = (((hdr)->flags & ~CDCF_IOC_IF_MASK) | \
+       ((idx) << CDCF_IOC_IF_SHIFT)))
+
+/*
+ * BDC header - Broadcom specific extension of CDC.
+ * Used on data packets to convey priority across USB.
+ */
+#define        BDC_HEADER_LEN          4
+#define BDC_PROTO_VER          1       /* Protocol version */
+#define BDC_FLAG_VER_MASK      0xf0    /* Protocol version mask */
+#define BDC_FLAG_VER_SHIFT     4       /* Protocol version shift */
+#define BDC_FLAG_SUM_GOOD      0x04    /* Good RX checksums */
+#define BDC_FLAG_SUM_NEEDED    0x08    /* Dongle needs to do TX checksums */
+#define BDC_PRIORITY_MASK      0x7
+#define BDC_FLAG2_IF_MASK      0x0f    /* packet rx interface in APSTA */
+#define BDC_FLAG2_IF_SHIFT     0
+
+#define BDC_GET_IF_IDX(hdr) \
+       ((int)((((hdr)->flags2) & BDC_FLAG2_IF_MASK) >> BDC_FLAG2_IF_SHIFT))
+#define BDC_SET_IF_IDX(hdr, idx) \
+       ((hdr)->flags2 = (((hdr)->flags2 & ~BDC_FLAG2_IF_MASK) | \
+       ((idx) << BDC_FLAG2_IF_SHIFT)))
+
+struct brcmf_proto_bdc_header {
+       u8 flags;
+       u8 priority;    /* 802.1d Priority, 4:7 flow control info for usb */
+       u8 flags2;
+       u8 rssi;
+};
 
-#include <bcmutils.h>
-#include <bcmcdc.h>
 
-#include <dngl_stats.h>
-#include <dhd.h>
-#include <dhd_proto.h>
-#include <dhd_bus.h>
-#include <dhd_dbg.h>
 #ifdef CUSTOMER_HW2
 int wifi_get_mac_addr(unsigned char *buf);
 #endif
 
-extern int dhd_preinit_ioctls(dhd_pub_t *dhd);
-
-/* Packet alignment for most efficient SDIO (can change based on platform) */
-#ifndef DHD_SDALIGN
-#define DHD_SDALIGN    32
-#endif
-#if !ISPOWEROF2(DHD_SDALIGN)
-#error DHD_SDALIGN is not a power of 2!
-#endif
-
 #define RETRIES 2      /* # of retries to retrieve matching ioctl response */
-#define BUS_HEADER_LEN (16+DHD_SDALIGN) /* Must be atleast SDPCM_RESERVE
+#define BUS_HEADER_LEN (16+BRCMF_SDALIGN) /* Must be atleast SDPCM_RESERVE
                                         * defined in dhd_sdio.c
                                         * (amount of header tha might be added)
                                         * plus any space that might be needed
@@ -51,19 +95,20 @@ extern int dhd_preinit_ioctls(dhd_pub_t *dhd);
                                 * round off at the end of buffer
                                 */
 
-typedef struct dhd_prot {
+struct brcmf_proto {
        u16 reqid;
        u8 pending;
        u32 lastcmd;
        u8 bus_header[BUS_HEADER_LEN];
-       cdc_ioctl_t msg;
-       unsigned char buf[WLC_IOCTL_MAXLEN + ROUND_UP_MARGIN];
-} dhd_prot_t;
+       struct brcmf_proto_cdc_ioctl msg;
+       unsigned char buf[BRCMF_C_IOCTL_MAXLEN + ROUND_UP_MARGIN];
+};
 
-static int dhdcdc_msg(dhd_pub_t *dhd)
+static int brcmf_proto_cdc_msg(dhd_pub_t *dhd)
 {
-       dhd_prot_t *prot = dhd->prot;
-       int len = le32_to_cpu(prot->msg.len) + sizeof(cdc_ioctl_t);
+       struct brcmf_proto *prot = dhd->prot;
+       int len = le32_to_cpu(prot->msg.len) +
+                       sizeof(struct brcmf_proto_cdc_ioctl);
 
        DHD_TRACE(("%s: Enter\n", __func__));
 
@@ -75,20 +120,21 @@ static int dhdcdc_msg(dhd_pub_t *dhd)
                len = CDC_MAX_MSG_SIZE;
 
        /* Send request */
-       return dhd_bus_txctl(dhd->bus, (unsigned char *)&prot->msg, len);
+       return brcmf_sdbrcm_bus_txctl(dhd->bus, (unsigned char *)&prot->msg,
+                                     len);
 }
 
-static int dhdcdc_cmplt(dhd_pub_t *dhd, u32 id, u32 len)
+static int brcmf_proto_cdc_cmplt(dhd_pub_t *dhd, u32 id, u32 len)
 {
        int ret;
-       dhd_prot_t *prot = dhd->prot;
+       struct brcmf_proto *prot = dhd->prot;
 
        DHD_TRACE(("%s: Enter\n", __func__));
 
        do {
-               ret =
-                   dhd_bus_rxctl(dhd->bus, (unsigned char *)&prot->msg,
-                                 len + sizeof(cdc_ioctl_t));
+               ret = brcmf_sdbrcm_bus_rxctl(dhd->bus,
+                               (unsigned char *)&prot->msg,
+                               len + sizeof(struct brcmf_proto_cdc_ioctl));
                if (ret < 0)
                        break;
        } while (CDC_IOC_ID(le32_to_cpu(prot->msg.flags)) != id);
@@ -97,10 +143,11 @@ static int dhdcdc_cmplt(dhd_pub_t *dhd, u32 id, u32 len)
 }
 
 int
-dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
+brcmf_proto_cdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf,
+                           uint len)
 {
-       dhd_prot_t *prot = dhd->prot;
-       cdc_ioctl_t *msg = &prot->msg;
+       struct brcmf_proto *prot = dhd->prot;
+       struct brcmf_proto_cdc_ioctl *msg = &prot->msg;
        void *info;
        int ret = 0, retries = 0;
        u32 id, flags = 0;
@@ -109,7 +156,7 @@ dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
        DHD_CTL(("%s: cmd %d len %d\n", __func__, cmd, len));
 
        /* Respond "bcmerror" and "bcmerrorstr" with local cache */
-       if (cmd == WLC_GET_VAR && buf) {
+       if (cmd == BRCMF_C_GET_VAR && buf) {
                if (!strcmp((char *)buf, "bcmerrorstr")) {
                        strncpy((char *)buf, "bcm_error",
                                BCME_STRLEN);
@@ -120,7 +167,7 @@ dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
                }
        }
 
-       memset(msg, 0, sizeof(cdc_ioctl_t));
+       memset(msg, 0, sizeof(struct brcmf_proto_cdc_ioctl));
 
        msg->cmd = cpu_to_le32(cmd);
        msg->len = cpu_to_le32(len);
@@ -131,7 +178,7 @@ dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
        if (buf)
                memcpy(prot->buf, buf, len);
 
-       ret = dhdcdc_msg(dhd);
+       ret = brcmf_proto_cdc_msg(dhd);
        if (ret < 0) {
                DHD_ERROR(("dhdcdc_query_ioctl: dhdcdc_msg failed w/status "
                        "%d\n", ret));
@@ -140,7 +187,7 @@ dhdcdc_query_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
 
 retry:
        /* wait for interrupt and get first fragment */
-       ret = dhdcdc_cmplt(dhd, prot->reqid, len);
+       ret = brcmf_proto_cdc_cmplt(dhd, prot->reqid, len);
        if (ret < 0)
                goto done;
 
@@ -151,7 +198,8 @@ retry:
                goto retry;
        if (id != prot->reqid) {
                DHD_ERROR(("%s: %s: unexpected request id %d (expected %d)\n",
-                          dhd_ifname(dhd, ifidx), __func__, id, prot->reqid));
+                          brcmf_ifname(dhd, ifidx), __func__, id,
+                          prot->reqid));
                ret = -EINVAL;
                goto done;
        }
@@ -177,17 +225,18 @@ done:
        return ret;
 }
 
-int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
+int brcmf_proto_cdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd,
+                             void *buf, uint len)
 {
-       dhd_prot_t *prot = dhd->prot;
-       cdc_ioctl_t *msg = &prot->msg;
+       struct brcmf_proto *prot = dhd->prot;
+       struct brcmf_proto_cdc_ioctl *msg = &prot->msg;
        int ret = 0;
        u32 flags, id;
 
        DHD_TRACE(("%s: Enter\n", __func__));
        DHD_CTL(("%s: cmd %d len %d\n", __func__, cmd, len));
 
-       memset(msg, 0, sizeof(cdc_ioctl_t));
+       memset(msg, 0, sizeof(struct brcmf_proto_cdc_ioctl));
 
        msg->cmd = cpu_to_le32(cmd);
        msg->len = cpu_to_le32(len);
@@ -198,11 +247,11 @@ int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
        if (buf)
                memcpy(prot->buf, buf, len);
 
-       ret = dhdcdc_msg(dhd);
+       ret = brcmf_proto_cdc_msg(dhd);
        if (ret < 0)
                goto done;
 
-       ret = dhdcdc_cmplt(dhd, prot->reqid, len);
+       ret = brcmf_proto_cdc_cmplt(dhd, prot->reqid, len);
        if (ret < 0)
                goto done;
 
@@ -211,7 +260,8 @@ int dhdcdc_set_ioctl(dhd_pub_t *dhd, int ifidx, uint cmd, void *buf, uint len)
 
        if (id != prot->reqid) {
                DHD_ERROR(("%s: %s: unexpected request id %d (expected %d)\n",
-                          dhd_ifname(dhd, ifidx), __func__, id, prot->reqid));
+                          brcmf_ifname(dhd, ifidx), __func__, id,
+                          prot->reqid));
                ret = -EINVAL;
                goto done;
        }
@@ -229,9 +279,10 @@ done:
 
 extern int dhd_bus_interface(struct dhd_bus *bus, uint arg, void *arg2);
 int
-dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t *ioc, void *buf, int len)
+brcmf_proto_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t *ioc, void *buf,
+                 int len)
 {
-       dhd_prot_t *prot = dhd->prot;
+       struct brcmf_proto *prot = dhd->prot;
        int ret = -1;
 
        if (dhd->busstate == DHD_BUS_DOWN) {
@@ -239,13 +290,13 @@ dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t *ioc, void *buf, int len)
                           __func__));
                return ret;
        }
-       dhd_os_proto_block(dhd);
+       brcmf_os_proto_block(dhd);
 
        DHD_TRACE(("%s: Enter\n", __func__));
 
-       ASSERT(len <= WLC_IOCTL_MAXLEN);
+       ASSERT(len <= BRCMF_C_IOCTL_MAXLEN);
 
-       if (len > WLC_IOCTL_MAXLEN)
+       if (len > BRCMF_C_IOCTL_MAXLEN)
                goto done;
 
        if (prot->pending == true) {
@@ -253,7 +304,8 @@ dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t *ioc, void *buf, int len)
                        "lastcmd=0x%x (%lu)\n",
                        ioc->cmd, (unsigned long)ioc->cmd, prot->lastcmd,
                        (unsigned long)prot->lastcmd));
-               if ((ioc->cmd == WLC_SET_VAR) || (ioc->cmd == WLC_GET_VAR))
+               if ((ioc->cmd == BRCMF_C_SET_VAR) ||
+                   (ioc->cmd == BRCMF_C_GET_VAR))
                        DHD_TRACE(("iovar cmd=%s\n", (char *)buf));
 
                goto done;
@@ -262,24 +314,26 @@ dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t *ioc, void *buf, int len)
        prot->pending = true;
        prot->lastcmd = ioc->cmd;
        if (ioc->set)
-               ret = dhdcdc_set_ioctl(dhd, ifidx, ioc->cmd, buf, len);
+               ret = brcmf_proto_cdc_set_ioctl(dhd, ifidx, ioc->cmd, buf, len);
        else {
-               ret = dhdcdc_query_ioctl(dhd, ifidx, ioc->cmd, buf, len);
+               ret = brcmf_proto_cdc_query_ioctl(dhd, ifidx, ioc->cmd,
+                                                 buf, len);
                if (ret > 0)
-                       ioc->used = ret - sizeof(cdc_ioctl_t);
+                       ioc->used = ret - sizeof(struct brcmf_proto_cdc_ioctl);
        }
 
        /* Too many programs assume ioctl() returns 0 on success */
        if (ret >= 0)
                ret = 0;
        else {
-               cdc_ioctl_t *msg = &prot->msg;
+               struct brcmf_proto_cdc_ioctl *msg = &prot->msg;
                /* len == needed when set/query fails from dongle */
                ioc->needed = le32_to_cpu(msg->len);
        }
 
        /* Intercept the wme_dp ioctl here */
-       if ((!ret) && (ioc->cmd == WLC_SET_VAR) && (!strcmp(buf, "wme_dp"))) {
+       if (!ret && ioc->cmd == BRCMF_C_SET_VAR &&
+           !strcmp(buf, "wme_dp")) {
                int slen, val = 0;
 
                slen = strlen("wme_dp") + 1;
@@ -291,7 +345,7 @@ dhd_prot_ioctl(dhd_pub_t *dhd, int ifidx, wl_ioctl_t *ioc, void *buf, int len)
        prot->pending = false;
 
 done:
-       dhd_os_proto_unblock(dhd);
+       brcmf_os_proto_unblock(dhd);
 
        return ret;
 }
@@ -306,31 +360,28 @@ done:
        skb->ip_summed is overloaded */
 
 int
-dhd_prot_iovar_op(dhd_pub_t *dhdp, const char *name,
+brcmf_proto_iovar_op(dhd_pub_t *dhdp, const char *name,
                  void *params, int plen, void *arg, int len, bool set)
 {
        return -ENOTSUPP;
 }
 
-void dhd_prot_dump(dhd_pub_t *dhdp, struct bcmstrbuf *strbuf)
+void brcmf_proto_dump(dhd_pub_t *dhdp, struct brcmu_strbuf *strbuf)
 {
-       bcm_bprintf(strbuf, "Protocol CDC: reqid %d\n", dhdp->prot->reqid);
+       brcmu_bprintf(strbuf, "Protocol CDC: reqid %d\n", dhdp->prot->reqid);
 }
 
-void dhd_prot_hdrpush(dhd_pub_t *dhd, int ifidx, struct sk_buff *pktbuf)
+void brcmf_proto_hdrpush(dhd_pub_t *dhd, int ifidx, struct sk_buff *pktbuf)
 {
-#ifdef BDC
-       struct bdc_header *h;
-#endif                         /* BDC */
+       struct brcmf_proto_bdc_header *h;
 
        DHD_TRACE(("%s: Enter\n", __func__));
 
-#ifdef BDC
        /* Push BDC header used to convey priority for buses that don't */
 
        skb_push(pktbuf, BDC_HEADER_LEN);
 
-       h = (struct bdc_header *)(pktbuf->data);
+       h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
 
        h->flags = (BDC_PROTO_VER << BDC_FLAG_VER_SHIFT);
        if (PKTSUMNEEDED(pktbuf))
@@ -339,19 +390,15 @@ void dhd_prot_hdrpush(dhd_pub_t *dhd, int ifidx, struct sk_buff *pktbuf)
        h->priority = (pktbuf->priority & BDC_PRIORITY_MASK);
        h->flags2 = 0;
        h->rssi = 0;
-#endif                         /* BDC */
        BDC_SET_IF_IDX(h, ifidx);
 }
 
-int dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, struct sk_buff *pktbuf)
+int brcmf_proto_hdrpull(dhd_pub_t *dhd, int *ifidx, struct sk_buff *pktbuf)
 {
-#ifdef BDC
-       struct bdc_header *h;
-#endif
+       struct brcmf_proto_bdc_header *h;
 
        DHD_TRACE(("%s: Enter\n", __func__));
 
-#ifdef BDC
        /* Pop BDC header used to convey priority for buses that don't */
 
        if (pktbuf->len < BDC_HEADER_LEN) {
@@ -360,7 +407,7 @@ int dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, struct sk_buff *pktbuf)
                return -EBADE;
        }
 
-       h = (struct bdc_header *)(pktbuf->data);
+       h = (struct brcmf_proto_bdc_header *)(pktbuf->data);
 
        *ifidx = BDC_GET_IF_IDX(h);
        if (*ifidx >= DHD_MAX_IFS) {
@@ -372,30 +419,29 @@ int dhd_prot_hdrpull(dhd_pub_t *dhd, int *ifidx, struct sk_buff *pktbuf)
        if (((h->flags & BDC_FLAG_VER_MASK) >> BDC_FLAG_VER_SHIFT) !=
            BDC_PROTO_VER) {
                DHD_ERROR(("%s: non-BDC packet received, flags 0x%x\n",
-                          dhd_ifname(dhd, *ifidx), h->flags));
+                          brcmf_ifname(dhd, *ifidx), h->flags));
                return -EBADE;
        }
 
        if (h->flags & BDC_FLAG_SUM_GOOD) {
                DHD_INFO(("%s: BDC packet received with good rx-csum, "
                        "flags 0x%x\n",
-                       dhd_ifname(dhd, *ifidx), h->flags));
+                       brcmf_ifname(dhd, *ifidx), h->flags));
                PKTSETSUMGOOD(pktbuf, true);
        }
 
        pktbuf->priority = h->priority & BDC_PRIORITY_MASK;
 
        skb_pull(pktbuf, BDC_HEADER_LEN);
-#endif                         /* BDC */
 
        return 0;
 }
 
-int dhd_prot_attach(dhd_pub_t *dhd)
+int brcmf_proto_attach(dhd_pub_t *dhd)
 {
-       dhd_prot_t *cdc;
+       struct brcmf_proto *cdc;
 
-       cdc = kzalloc(sizeof(dhd_prot_t), GFP_ATOMIC);
+       cdc = kzalloc(sizeof(struct brcmf_proto), GFP_ATOMIC);
        if (!cdc) {
                DHD_ERROR(("%s: kmalloc failed\n", __func__));
                goto fail;
@@ -403,15 +449,14 @@ int dhd_prot_attach(dhd_pub_t *dhd)
 
        /* ensure that the msg buf directly follows the cdc msg struct */
        if ((unsigned long)(&cdc->msg + 1) != (unsigned long)cdc->buf) {
-               DHD_ERROR(("dhd_prot_t is not correctly defined\n"));
+               DHD_ERROR(("struct brcmf_proto is not correctly defined\n"));
                goto fail;
        }
 
        dhd->prot = cdc;
-#ifdef BDC
        dhd->hdrlen += BDC_HEADER_LEN;
-#endif
-       dhd->maxctl = WLC_IOCTL_MAXLEN + sizeof(cdc_ioctl_t) + ROUND_UP_MARGIN;
+       dhd->maxctl = BRCMF_C_IOCTL_MAXLEN +
+                       sizeof(struct brcmf_proto_cdc_ioctl) + ROUND_UP_MARGIN;
        return 0;
 
 fail:
@@ -420,13 +465,13 @@ fail:
 }
 
 /* ~NOTE~ What if another thread is waiting on the semaphore?  Holding it? */
-void dhd_prot_detach(dhd_pub_t *dhd)
+void brcmf_proto_detach(dhd_pub_t *dhd)
 {
        kfree(dhd->prot);
        dhd->prot = NULL;
 }
 
-void dhd_prot_dstats(dhd_pub_t *dhd)
+void brcmf_proto_dstats(dhd_pub_t *dhd)
 {
        /* No stats from dongle added yet, copy bus stats */
        dhd->dstats.tx_packets = dhd->tx_packets;
@@ -438,29 +483,28 @@ void dhd_prot_dstats(dhd_pub_t *dhd)
        return;
 }
 
-int dhd_prot_init(dhd_pub_t *dhd)
+int brcmf_proto_init(dhd_pub_t *dhd)
 {
        int ret = 0;
        char buf[128];
 
        DHD_TRACE(("%s: Enter\n", __func__));
 
-       dhd_os_proto_block(dhd);
+       brcmf_os_proto_block(dhd);
 
        /* Get the device MAC address */
        strcpy(buf, "cur_etheraddr");
-       ret = dhdcdc_query_ioctl(dhd, 0, WLC_GET_VAR, buf, sizeof(buf));
+       ret = brcmf_proto_cdc_query_ioctl(dhd, 0, BRCMF_C_GET_VAR,
+                                         buf, sizeof(buf));
        if (ret < 0) {
-               dhd_os_proto_unblock(dhd);
+               brcmf_os_proto_unblock(dhd);
                return ret;
        }
        memcpy(dhd->mac, buf, ETH_ALEN);
 
-       dhd_os_proto_unblock(dhd);
+       brcmf_os_proto_unblock(dhd);
 
-#ifdef EMBEDDED_PLATFORM
-       ret = dhd_preinit_ioctls(dhd);
-#endif                         /* EMBEDDED_PLATFORM */
+       ret = brcmf_c_preinit_ioctls(dhd);
 
        /* Always assumes wl for now */
        dhd->iswl = true;
@@ -468,7 +512,7 @@ int dhd_prot_init(dhd_pub_t *dhd)
        return ret;
 }
 
-void dhd_prot_stop(dhd_pub_t *dhd)
+void brcmf_proto_stop(dhd_pub_t *dhd)
 {
        /* Nothing to do for CDC */
 }