1 // SPDX-License-Identifier: ISC 2 /* 3 * Copyright (c) 2013 Broadcom Corporation 4 */ 5 6 7 #include <linux/types.h> 8 #include <linux/slab.h> 9 #include <linux/netdevice.h> 10 11 #include <brcmu_wifi.h> 12 #include "core.h" 13 #include "bus.h" 14 #include "debug.h" 15 #include "proto.h" 16 #include "bcdc.h" 17 #include "msgbuf.h" 18 19 20 int brcmf_proto_attach(struct brcmf_pub *drvr) 21 { 22 struct brcmf_proto *proto; 23 24 brcmf_dbg(TRACE, "Enter\n"); 25 26 proto = kzalloc(sizeof(*proto), GFP_ATOMIC); 27 if (!proto) 28 goto fail; 29 30 drvr->proto = proto; 31 32 if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC) { 33 if (brcmf_proto_bcdc_attach(drvr)) 34 goto fail; 35 } else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF) { 36 if (brcmf_proto_msgbuf_attach(drvr)) 37 goto fail; 38 } else { 39 bphy_err(drvr, "Unsupported proto type %d\n", 40 drvr->bus_if->proto_type); 41 goto fail; 42 } 43 if (!proto->tx_queue_data || (proto->hdrpull == NULL) || 44 (proto->query_dcmd == NULL) || (proto->set_dcmd == NULL) || 45 (proto->configure_addr_mode == NULL) || 46 (proto->delete_peer == NULL) || (proto->add_tdls_peer == NULL) || 47 (proto->debugfs_create == NULL)) { 48 bphy_err(drvr, "Not all proto handlers have been installed\n"); 49 goto fail; 50 } 51 return 0; 52 53 fail: 54 kfree(proto); 55 drvr->proto = NULL; 56 return -ENOMEM; 57 } 58 59 void brcmf_proto_detach(struct brcmf_pub *drvr) 60 { 61 brcmf_dbg(TRACE, "Enter\n"); 62 63 if (drvr->proto) { 64 if (drvr->bus_if->proto_type == BRCMF_PROTO_BCDC) 65 brcmf_proto_bcdc_detach(drvr); 66 else if (drvr->bus_if->proto_type == BRCMF_PROTO_MSGBUF) 67 brcmf_proto_msgbuf_detach(drvr); 68 kfree(drvr->proto); 69 drvr->proto = NULL; 70 } 71 } 72