1601 lines
39 KiB
C
1601 lines
39 KiB
C
// SPDX-License-Identifier: ISC
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/*
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* Copyright (c) 2011 Broadcom Corporation
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*/
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/firmware.h>
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#include <linux/usb.h>
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#include <linux/vmalloc.h>
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#include <brcmu_utils.h>
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#include <brcm_hw_ids.h>
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#include <brcmu_wifi.h>
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#include "bus.h"
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#include "debug.h"
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#include "firmware.h"
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#include "usb.h"
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#include "core.h"
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#include "common.h"
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#include "bcdc.h"
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#define IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000)
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#define BRCMF_USB_RESET_GETVER_SPINWAIT 100 /* in unit of ms */
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#define BRCMF_USB_RESET_GETVER_LOOP_CNT 10
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#define BRCMF_POSTBOOT_ID 0xA123 /* ID to detect if dongle
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has boot up */
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#define BRCMF_USB_NRXQ 50
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#define BRCMF_USB_NTXQ 50
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#define BRCMF_USB_CBCTL_WRITE 0
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#define BRCMF_USB_CBCTL_READ 1
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#define BRCMF_USB_MAX_PKT_SIZE 1600
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BRCMF_FW_DEF(43143, "brcmfmac43143");
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BRCMF_FW_DEF(43236B, "brcmfmac43236b");
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BRCMF_FW_DEF(43242A, "brcmfmac43242a");
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BRCMF_FW_DEF(43569, "brcmfmac43569");
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BRCMF_FW_DEF(4373, "brcmfmac4373");
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static const struct brcmf_firmware_mapping brcmf_usb_fwnames[] = {
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BRCMF_FW_ENTRY(BRCM_CC_43143_CHIP_ID, 0xFFFFFFFF, 43143),
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BRCMF_FW_ENTRY(BRCM_CC_43235_CHIP_ID, 0x00000008, 43236B),
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BRCMF_FW_ENTRY(BRCM_CC_43236_CHIP_ID, 0x00000008, 43236B),
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BRCMF_FW_ENTRY(BRCM_CC_43238_CHIP_ID, 0x00000008, 43236B),
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BRCMF_FW_ENTRY(BRCM_CC_43242_CHIP_ID, 0xFFFFFFFF, 43242A),
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BRCMF_FW_ENTRY(BRCM_CC_43566_CHIP_ID, 0xFFFFFFFF, 43569),
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BRCMF_FW_ENTRY(BRCM_CC_43569_CHIP_ID, 0xFFFFFFFF, 43569),
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BRCMF_FW_ENTRY(CY_CC_4373_CHIP_ID, 0xFFFFFFFF, 4373)
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};
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#define TRX_MAGIC 0x30524448 /* "HDR0" */
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#define TRX_MAX_OFFSET 3 /* Max number of file offsets */
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#define TRX_UNCOMP_IMAGE 0x20 /* Trx holds uncompressed img */
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#define TRX_RDL_CHUNK 1500 /* size of each dl transfer */
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#define TRX_OFFSETS_DLFWLEN_IDX 0
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/* Control messages: bRequest values */
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#define DL_GETSTATE 0 /* returns the rdl_state_t struct */
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#define DL_CHECK_CRC 1 /* currently unused */
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#define DL_GO 2 /* execute downloaded image */
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#define DL_START 3 /* initialize dl state */
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#define DL_REBOOT 4 /* reboot the device in 2 seconds */
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#define DL_GETVER 5 /* returns the bootrom_id_t struct */
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#define DL_GO_PROTECTED 6 /* execute the downloaded code and set reset
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* event to occur in 2 seconds. It is the
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* responsibility of the downloaded code to
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* clear this event
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*/
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#define DL_EXEC 7 /* jump to a supplied address */
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#define DL_RESETCFG 8 /* To support single enum on dongle
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* - Not used by bootloader
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*/
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#define DL_DEFER_RESP_OK 9 /* Potentially defer the response to setup
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* if resp unavailable
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*/
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/* states */
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#define DL_WAITING 0 /* waiting to rx first pkt */
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#define DL_READY 1 /* hdr was good, waiting for more of the
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* compressed image
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*/
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#define DL_BAD_HDR 2 /* hdr was corrupted */
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#define DL_BAD_CRC 3 /* compressed image was corrupted */
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#define DL_RUNNABLE 4 /* download was successful,waiting for go cmd */
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#define DL_START_FAIL 5 /* failed to initialize correctly */
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#define DL_NVRAM_TOOBIG 6 /* host specified nvram data exceeds DL_NVRAM
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* value
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*/
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#define DL_IMAGE_TOOBIG 7 /* firmware image too big */
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struct trx_header_le {
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__le32 magic; /* "HDR0" */
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__le32 len; /* Length of file including header */
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__le32 crc32; /* CRC from flag_version to end of file */
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__le32 flag_version; /* 0:15 flags, 16:31 version */
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__le32 offsets[TRX_MAX_OFFSET]; /* Offsets of partitions from start of
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* header
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*/
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};
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struct rdl_state_le {
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__le32 state;
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__le32 bytes;
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};
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struct bootrom_id_le {
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__le32 chip; /* Chip id */
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__le32 chiprev; /* Chip rev */
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__le32 ramsize; /* Size of RAM */
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__le32 remapbase; /* Current remap base address */
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__le32 boardtype; /* Type of board */
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__le32 boardrev; /* Board revision */
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};
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struct brcmf_usb_image {
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struct list_head list;
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s8 *fwname;
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u8 *image;
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int image_len;
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};
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struct brcmf_usbdev_info {
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struct brcmf_usbdev bus_pub; /* MUST BE FIRST */
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spinlock_t qlock;
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struct list_head rx_freeq;
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struct list_head rx_postq;
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struct list_head tx_freeq;
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struct list_head tx_postq;
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uint rx_pipe, tx_pipe;
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int rx_low_watermark;
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int tx_low_watermark;
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int tx_high_watermark;
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int tx_freecount;
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bool tx_flowblock;
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spinlock_t tx_flowblock_lock;
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struct brcmf_usbreq *tx_reqs;
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struct brcmf_usbreq *rx_reqs;
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char fw_name[BRCMF_FW_NAME_LEN];
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const u8 *image; /* buffer for combine fw and nvram */
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int image_len;
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struct usb_device *usbdev;
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struct device *dev;
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struct completion dev_init_done;
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int ctl_in_pipe, ctl_out_pipe;
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struct urb *ctl_urb; /* URB for control endpoint */
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struct usb_ctrlrequest ctl_write;
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struct usb_ctrlrequest ctl_read;
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u32 ctl_urb_actual_length;
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int ctl_urb_status;
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int ctl_completed;
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wait_queue_head_t ioctl_resp_wait;
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ulong ctl_op;
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u8 ifnum;
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struct urb *bulk_urb; /* used for FW download */
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struct brcmf_mp_device *settings;
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};
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static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
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struct brcmf_usbreq *req);
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static struct brcmf_usbdev *brcmf_usb_get_buspub(struct device *dev)
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{
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struct brcmf_bus *bus_if = dev_get_drvdata(dev);
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return bus_if->bus_priv.usb;
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}
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static struct brcmf_usbdev_info *brcmf_usb_get_businfo(struct device *dev)
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{
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return brcmf_usb_get_buspub(dev)->devinfo;
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}
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static int brcmf_usb_ioctl_resp_wait(struct brcmf_usbdev_info *devinfo)
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{
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return wait_event_timeout(devinfo->ioctl_resp_wait,
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devinfo->ctl_completed, IOCTL_RESP_TIMEOUT);
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}
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static void brcmf_usb_ioctl_resp_wake(struct brcmf_usbdev_info *devinfo)
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{
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wake_up(&devinfo->ioctl_resp_wait);
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}
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static void
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brcmf_usb_ctl_complete(struct brcmf_usbdev_info *devinfo, int type, int status)
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{
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brcmf_dbg(USB, "Enter, status=%d\n", status);
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if (unlikely(devinfo == NULL))
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return;
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if (type == BRCMF_USB_CBCTL_READ) {
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if (status == 0)
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devinfo->bus_pub.stats.rx_ctlpkts++;
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else
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devinfo->bus_pub.stats.rx_ctlerrs++;
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} else if (type == BRCMF_USB_CBCTL_WRITE) {
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if (status == 0)
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devinfo->bus_pub.stats.tx_ctlpkts++;
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else
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devinfo->bus_pub.stats.tx_ctlerrs++;
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}
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devinfo->ctl_urb_status = status;
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devinfo->ctl_completed = true;
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brcmf_usb_ioctl_resp_wake(devinfo);
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}
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static void
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brcmf_usb_ctlread_complete(struct urb *urb)
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{
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struct brcmf_usbdev_info *devinfo =
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(struct brcmf_usbdev_info *)urb->context;
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brcmf_dbg(USB, "Enter\n");
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devinfo->ctl_urb_actual_length = urb->actual_length;
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brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_READ,
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urb->status);
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}
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static void
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brcmf_usb_ctlwrite_complete(struct urb *urb)
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{
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struct brcmf_usbdev_info *devinfo =
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(struct brcmf_usbdev_info *)urb->context;
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brcmf_dbg(USB, "Enter\n");
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brcmf_usb_ctl_complete(devinfo, BRCMF_USB_CBCTL_WRITE,
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urb->status);
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}
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static int
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brcmf_usb_send_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
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{
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int ret;
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u16 size;
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brcmf_dbg(USB, "Enter\n");
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if (devinfo == NULL || buf == NULL ||
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len == 0 || devinfo->ctl_urb == NULL)
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return -EINVAL;
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size = len;
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devinfo->ctl_write.wLength = cpu_to_le16p(&size);
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devinfo->ctl_urb->transfer_buffer_length = size;
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devinfo->ctl_urb_status = 0;
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devinfo->ctl_urb_actual_length = 0;
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usb_fill_control_urb(devinfo->ctl_urb,
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devinfo->usbdev,
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devinfo->ctl_out_pipe,
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(unsigned char *) &devinfo->ctl_write,
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buf, size,
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(usb_complete_t)brcmf_usb_ctlwrite_complete,
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devinfo);
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ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
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if (ret < 0)
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brcmf_err("usb_submit_urb failed %d\n", ret);
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return ret;
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}
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static int
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brcmf_usb_recv_ctl(struct brcmf_usbdev_info *devinfo, u8 *buf, int len)
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{
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int ret;
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u16 size;
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brcmf_dbg(USB, "Enter\n");
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if ((devinfo == NULL) || (buf == NULL) || (len == 0)
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|| (devinfo->ctl_urb == NULL))
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return -EINVAL;
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size = len;
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devinfo->ctl_read.wLength = cpu_to_le16p(&size);
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devinfo->ctl_urb->transfer_buffer_length = size;
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devinfo->ctl_read.bRequestType = USB_DIR_IN
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| USB_TYPE_CLASS | USB_RECIP_INTERFACE;
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devinfo->ctl_read.bRequest = 1;
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usb_fill_control_urb(devinfo->ctl_urb,
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devinfo->usbdev,
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devinfo->ctl_in_pipe,
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(unsigned char *) &devinfo->ctl_read,
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buf, size,
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(usb_complete_t)brcmf_usb_ctlread_complete,
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devinfo);
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ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
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if (ret < 0)
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brcmf_err("usb_submit_urb failed %d\n", ret);
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return ret;
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}
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static int brcmf_usb_tx_ctlpkt(struct device *dev, u8 *buf, u32 len)
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{
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int err = 0;
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int timeout = 0;
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struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
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struct usb_interface *intf = to_usb_interface(dev);
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brcmf_dbg(USB, "Enter\n");
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err = usb_autopm_get_interface(intf);
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if (err)
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goto out;
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if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
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err = -EIO;
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goto fail;
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}
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if (test_and_set_bit(0, &devinfo->ctl_op)) {
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err = -EIO;
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goto fail;
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}
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devinfo->ctl_completed = false;
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err = brcmf_usb_send_ctl(devinfo, buf, len);
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if (err) {
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brcmf_err("fail %d bytes: %d\n", err, len);
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clear_bit(0, &devinfo->ctl_op);
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goto fail;
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}
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timeout = brcmf_usb_ioctl_resp_wait(devinfo);
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if (!timeout) {
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brcmf_err("Txctl wait timed out\n");
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usb_kill_urb(devinfo->ctl_urb);
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err = -EIO;
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goto fail;
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}
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clear_bit(0, &devinfo->ctl_op);
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fail:
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usb_autopm_put_interface(intf);
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out:
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return err;
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}
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static int brcmf_usb_rx_ctlpkt(struct device *dev, u8 *buf, u32 len)
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{
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int err = 0;
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int timeout = 0;
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struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
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struct usb_interface *intf = to_usb_interface(dev);
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brcmf_dbg(USB, "Enter\n");
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err = usb_autopm_get_interface(intf);
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if (err)
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goto out;
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if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
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err = -EIO;
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goto fail;
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}
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if (test_and_set_bit(0, &devinfo->ctl_op)) {
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err = -EIO;
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goto fail;
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}
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devinfo->ctl_completed = false;
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err = brcmf_usb_recv_ctl(devinfo, buf, len);
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if (err) {
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brcmf_err("fail %d bytes: %d\n", err, len);
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clear_bit(0, &devinfo->ctl_op);
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goto fail;
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}
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timeout = brcmf_usb_ioctl_resp_wait(devinfo);
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err = devinfo->ctl_urb_status;
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if (!timeout) {
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brcmf_err("rxctl wait timed out\n");
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usb_kill_urb(devinfo->ctl_urb);
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err = -EIO;
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goto fail;
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}
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clear_bit(0, &devinfo->ctl_op);
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fail:
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usb_autopm_put_interface(intf);
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if (!err)
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return devinfo->ctl_urb_actual_length;
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out:
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return err;
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}
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static struct brcmf_usbreq *brcmf_usb_deq(struct brcmf_usbdev_info *devinfo,
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struct list_head *q, int *counter)
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{
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unsigned long flags;
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struct brcmf_usbreq *req;
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spin_lock_irqsave(&devinfo->qlock, flags);
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if (list_empty(q)) {
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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return NULL;
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}
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req = list_entry(q->next, struct brcmf_usbreq, list);
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list_del_init(q->next);
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if (counter)
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(*counter)--;
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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return req;
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}
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static void brcmf_usb_enq(struct brcmf_usbdev_info *devinfo,
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struct list_head *q, struct brcmf_usbreq *req,
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int *counter)
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{
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unsigned long flags;
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spin_lock_irqsave(&devinfo->qlock, flags);
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list_add_tail(&req->list, q);
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if (counter)
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(*counter)++;
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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}
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|
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static struct brcmf_usbreq *
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brcmf_usbdev_qinit(struct list_head *q, int qsize)
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{
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int i;
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struct brcmf_usbreq *req, *reqs;
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reqs = kcalloc(qsize, sizeof(struct brcmf_usbreq), GFP_ATOMIC);
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if (reqs == NULL)
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return NULL;
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req = reqs;
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for (i = 0; i < qsize; i++) {
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req->urb = usb_alloc_urb(0, GFP_ATOMIC);
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if (!req->urb)
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goto fail;
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INIT_LIST_HEAD(&req->list);
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list_add_tail(&req->list, q);
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req++;
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}
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return reqs;
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fail:
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brcmf_err("fail!\n");
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while (!list_empty(q)) {
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req = list_entry(q->next, struct brcmf_usbreq, list);
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if (req)
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usb_free_urb(req->urb);
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list_del(q->next);
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}
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kfree(reqs);
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return NULL;
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|
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}
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|
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static void brcmf_usb_free_q(struct list_head *q)
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{
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struct brcmf_usbreq *req, *next;
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list_for_each_entry_safe(req, next, q, list) {
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if (!req->urb) {
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brcmf_err("bad req\n");
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break;
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}
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usb_free_urb(req->urb);
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list_del_init(&req->list);
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}
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}
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|
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static void brcmf_usb_del_fromq(struct brcmf_usbdev_info *devinfo,
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struct brcmf_usbreq *req)
|
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{
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unsigned long flags;
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|
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spin_lock_irqsave(&devinfo->qlock, flags);
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list_del_init(&req->list);
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spin_unlock_irqrestore(&devinfo->qlock, flags);
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}
|
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|
|
|
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static void brcmf_usb_tx_complete(struct urb *urb)
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{
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struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
|
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struct brcmf_usbdev_info *devinfo = req->devinfo;
|
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unsigned long flags;
|
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|
|
brcmf_dbg(USB, "Enter, urb->status=%d, skb=%p\n", urb->status,
|
|
req->skb);
|
|
brcmf_usb_del_fromq(devinfo, req);
|
|
|
|
brcmf_proto_bcdc_txcomplete(devinfo->dev, req->skb, urb->status == 0);
|
|
req->skb = NULL;
|
|
brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req, &devinfo->tx_freecount);
|
|
spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
|
|
if (devinfo->tx_freecount > devinfo->tx_high_watermark &&
|
|
devinfo->tx_flowblock) {
|
|
brcmf_proto_bcdc_txflowblock(devinfo->dev, false);
|
|
devinfo->tx_flowblock = false;
|
|
}
|
|
spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
|
|
}
|
|
|
|
static void brcmf_usb_rx_complete(struct urb *urb)
|
|
{
|
|
struct brcmf_usbreq *req = (struct brcmf_usbreq *)urb->context;
|
|
struct brcmf_usbdev_info *devinfo = req->devinfo;
|
|
struct sk_buff *skb;
|
|
|
|
brcmf_dbg(USB, "Enter, urb->status=%d\n", urb->status);
|
|
brcmf_usb_del_fromq(devinfo, req);
|
|
skb = req->skb;
|
|
req->skb = NULL;
|
|
|
|
/* zero length packets indicate usb "failure". Do not refill */
|
|
if (urb->status != 0 || !urb->actual_length) {
|
|
brcmu_pkt_buf_free_skb(skb);
|
|
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
|
return;
|
|
}
|
|
|
|
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP ||
|
|
devinfo->bus_pub.state == BRCMFMAC_USB_STATE_SLEEP) {
|
|
skb_put(skb, urb->actual_length);
|
|
brcmf_rx_frame(devinfo->dev, skb, true, true);
|
|
brcmf_usb_rx_refill(devinfo, req);
|
|
usb_mark_last_busy(urb->dev);
|
|
} else {
|
|
brcmu_pkt_buf_free_skb(skb);
|
|
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
|
}
|
|
return;
|
|
|
|
}
|
|
|
|
static void brcmf_usb_rx_refill(struct brcmf_usbdev_info *devinfo,
|
|
struct brcmf_usbreq *req)
|
|
{
|
|
struct sk_buff *skb;
|
|
int ret;
|
|
|
|
if (!req || !devinfo)
|
|
return;
|
|
|
|
skb = dev_alloc_skb(devinfo->bus_pub.bus_mtu);
|
|
if (!skb) {
|
|
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
|
return;
|
|
}
|
|
req->skb = skb;
|
|
|
|
usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->rx_pipe,
|
|
skb->data, skb_tailroom(skb), brcmf_usb_rx_complete,
|
|
req);
|
|
req->devinfo = devinfo;
|
|
brcmf_usb_enq(devinfo, &devinfo->rx_postq, req, NULL);
|
|
|
|
ret = usb_submit_urb(req->urb, GFP_ATOMIC);
|
|
if (ret) {
|
|
brcmf_usb_del_fromq(devinfo, req);
|
|
brcmu_pkt_buf_free_skb(req->skb);
|
|
req->skb = NULL;
|
|
brcmf_usb_enq(devinfo, &devinfo->rx_freeq, req, NULL);
|
|
}
|
|
return;
|
|
}
|
|
|
|
static void brcmf_usb_rx_fill_all(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
struct brcmf_usbreq *req;
|
|
|
|
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
|
|
brcmf_err("bus is not up=%d\n", devinfo->bus_pub.state);
|
|
return;
|
|
}
|
|
while ((req = brcmf_usb_deq(devinfo, &devinfo->rx_freeq, NULL)) != NULL)
|
|
brcmf_usb_rx_refill(devinfo, req);
|
|
}
|
|
|
|
static void
|
|
brcmf_usb_state_change(struct brcmf_usbdev_info *devinfo, int state)
|
|
{
|
|
struct brcmf_bus *bcmf_bus = devinfo->bus_pub.bus;
|
|
|
|
brcmf_dbg(USB, "Enter, current state=%d, new state=%d\n",
|
|
devinfo->bus_pub.state, state);
|
|
|
|
if (devinfo->bus_pub.state == state)
|
|
return;
|
|
|
|
devinfo->bus_pub.state = state;
|
|
|
|
/* update state of upper layer */
|
|
if (state == BRCMFMAC_USB_STATE_DOWN) {
|
|
brcmf_dbg(USB, "DBUS is down\n");
|
|
brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_DOWN);
|
|
} else if (state == BRCMFMAC_USB_STATE_UP) {
|
|
brcmf_dbg(USB, "DBUS is up\n");
|
|
brcmf_bus_change_state(bcmf_bus, BRCMF_BUS_UP);
|
|
} else {
|
|
brcmf_dbg(USB, "DBUS current state=%d\n", state);
|
|
}
|
|
}
|
|
|
|
static int brcmf_usb_tx(struct device *dev, struct sk_buff *skb)
|
|
{
|
|
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
|
|
struct brcmf_usbreq *req;
|
|
int ret;
|
|
unsigned long flags;
|
|
struct usb_interface *intf = to_usb_interface(dev);
|
|
|
|
ret = usb_autopm_get_interface(intf);
|
|
if (ret)
|
|
goto out;
|
|
|
|
brcmf_dbg(USB, "Enter, skb=%p\n", skb);
|
|
if (devinfo->bus_pub.state != BRCMFMAC_USB_STATE_UP) {
|
|
ret = -EIO;
|
|
goto fail;
|
|
}
|
|
|
|
req = brcmf_usb_deq(devinfo, &devinfo->tx_freeq,
|
|
&devinfo->tx_freecount);
|
|
if (!req) {
|
|
brcmf_err("no req to send\n");
|
|
ret = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
req->skb = skb;
|
|
req->devinfo = devinfo;
|
|
usb_fill_bulk_urb(req->urb, devinfo->usbdev, devinfo->tx_pipe,
|
|
skb->data, skb->len, brcmf_usb_tx_complete, req);
|
|
req->urb->transfer_flags |= URB_ZERO_PACKET;
|
|
brcmf_usb_enq(devinfo, &devinfo->tx_postq, req, NULL);
|
|
ret = usb_submit_urb(req->urb, GFP_ATOMIC);
|
|
if (ret) {
|
|
brcmf_err("brcmf_usb_tx usb_submit_urb FAILED\n");
|
|
brcmf_usb_del_fromq(devinfo, req);
|
|
req->skb = NULL;
|
|
brcmf_usb_enq(devinfo, &devinfo->tx_freeq, req,
|
|
&devinfo->tx_freecount);
|
|
goto fail;
|
|
}
|
|
|
|
spin_lock_irqsave(&devinfo->tx_flowblock_lock, flags);
|
|
if (devinfo->tx_freecount < devinfo->tx_low_watermark &&
|
|
!devinfo->tx_flowblock) {
|
|
brcmf_proto_bcdc_txflowblock(dev, true);
|
|
devinfo->tx_flowblock = true;
|
|
}
|
|
spin_unlock_irqrestore(&devinfo->tx_flowblock_lock, flags);
|
|
|
|
fail:
|
|
usb_autopm_put_interface(intf);
|
|
out:
|
|
return ret;
|
|
}
|
|
|
|
|
|
static int brcmf_usb_up(struct device *dev)
|
|
{
|
|
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_UP)
|
|
return 0;
|
|
|
|
/* Success, indicate devinfo is fully up */
|
|
brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_UP);
|
|
|
|
if (devinfo->ctl_urb) {
|
|
devinfo->ctl_in_pipe = usb_rcvctrlpipe(devinfo->usbdev, 0);
|
|
devinfo->ctl_out_pipe = usb_sndctrlpipe(devinfo->usbdev, 0);
|
|
|
|
/* CTL Write */
|
|
devinfo->ctl_write.bRequestType =
|
|
USB_DIR_OUT | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
|
|
devinfo->ctl_write.bRequest = 0;
|
|
devinfo->ctl_write.wValue = cpu_to_le16(0);
|
|
devinfo->ctl_write.wIndex = cpu_to_le16(devinfo->ifnum);
|
|
|
|
/* CTL Read */
|
|
devinfo->ctl_read.bRequestType =
|
|
USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE;
|
|
devinfo->ctl_read.bRequest = 1;
|
|
devinfo->ctl_read.wValue = cpu_to_le16(0);
|
|
devinfo->ctl_read.wIndex = cpu_to_le16(devinfo->ifnum);
|
|
}
|
|
brcmf_usb_rx_fill_all(devinfo);
|
|
return 0;
|
|
}
|
|
|
|
static void brcmf_cancel_all_urbs(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
int i;
|
|
|
|
if (devinfo->ctl_urb)
|
|
usb_kill_urb(devinfo->ctl_urb);
|
|
if (devinfo->bulk_urb)
|
|
usb_kill_urb(devinfo->bulk_urb);
|
|
if (devinfo->tx_reqs)
|
|
for (i = 0; i < devinfo->bus_pub.ntxq; i++)
|
|
usb_kill_urb(devinfo->tx_reqs[i].urb);
|
|
if (devinfo->rx_reqs)
|
|
for (i = 0; i < devinfo->bus_pub.nrxq; i++)
|
|
usb_kill_urb(devinfo->rx_reqs[i].urb);
|
|
}
|
|
|
|
static void brcmf_usb_down(struct device *dev)
|
|
{
|
|
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(dev);
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
if (devinfo == NULL)
|
|
return;
|
|
|
|
if (devinfo->bus_pub.state == BRCMFMAC_USB_STATE_DOWN)
|
|
return;
|
|
|
|
brcmf_usb_state_change(devinfo, BRCMFMAC_USB_STATE_DOWN);
|
|
|
|
brcmf_cancel_all_urbs(devinfo);
|
|
}
|
|
|
|
static void
|
|
brcmf_usb_sync_complete(struct urb *urb)
|
|
{
|
|
struct brcmf_usbdev_info *devinfo =
|
|
(struct brcmf_usbdev_info *)urb->context;
|
|
|
|
devinfo->ctl_completed = true;
|
|
brcmf_usb_ioctl_resp_wake(devinfo);
|
|
}
|
|
|
|
static int brcmf_usb_dl_cmd(struct brcmf_usbdev_info *devinfo, u8 cmd,
|
|
void *buffer, int buflen)
|
|
{
|
|
int ret;
|
|
char *tmpbuf;
|
|
u16 size;
|
|
|
|
if ((!devinfo) || (devinfo->ctl_urb == NULL))
|
|
return -EINVAL;
|
|
|
|
tmpbuf = kmalloc(buflen, GFP_ATOMIC);
|
|
if (!tmpbuf)
|
|
return -ENOMEM;
|
|
|
|
size = buflen;
|
|
devinfo->ctl_urb->transfer_buffer_length = size;
|
|
|
|
devinfo->ctl_read.wLength = cpu_to_le16p(&size);
|
|
devinfo->ctl_read.bRequestType = USB_DIR_IN | USB_TYPE_VENDOR |
|
|
USB_RECIP_INTERFACE;
|
|
devinfo->ctl_read.bRequest = cmd;
|
|
|
|
usb_fill_control_urb(devinfo->ctl_urb,
|
|
devinfo->usbdev,
|
|
usb_rcvctrlpipe(devinfo->usbdev, 0),
|
|
(unsigned char *) &devinfo->ctl_read,
|
|
(void *) tmpbuf, size,
|
|
(usb_complete_t)brcmf_usb_sync_complete, devinfo);
|
|
|
|
devinfo->ctl_completed = false;
|
|
ret = usb_submit_urb(devinfo->ctl_urb, GFP_ATOMIC);
|
|
if (ret < 0) {
|
|
brcmf_err("usb_submit_urb failed %d\n", ret);
|
|
goto finalize;
|
|
}
|
|
|
|
if (!brcmf_usb_ioctl_resp_wait(devinfo)) {
|
|
usb_kill_urb(devinfo->ctl_urb);
|
|
ret = -ETIMEDOUT;
|
|
} else {
|
|
memcpy(buffer, tmpbuf, buflen);
|
|
}
|
|
|
|
finalize:
|
|
kfree(tmpbuf);
|
|
return ret;
|
|
}
|
|
|
|
static bool
|
|
brcmf_usb_dlneeded(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
struct bootrom_id_le id;
|
|
u32 chipid, chiprev;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
|
|
if (devinfo == NULL)
|
|
return false;
|
|
|
|
/* Check if firmware downloaded already by querying runtime ID */
|
|
id.chip = cpu_to_le32(0xDEAD);
|
|
brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
|
|
|
|
chipid = le32_to_cpu(id.chip);
|
|
chiprev = le32_to_cpu(id.chiprev);
|
|
|
|
if ((chipid & 0x4300) == 0x4300)
|
|
brcmf_dbg(USB, "chip %x rev 0x%x\n", chipid, chiprev);
|
|
else
|
|
brcmf_dbg(USB, "chip %d rev 0x%x\n", chipid, chiprev);
|
|
if (chipid == BRCMF_POSTBOOT_ID) {
|
|
brcmf_dbg(USB, "firmware already downloaded\n");
|
|
brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
|
|
return false;
|
|
} else {
|
|
devinfo->bus_pub.devid = chipid;
|
|
devinfo->bus_pub.chiprev = chiprev;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static int
|
|
brcmf_usb_resetcfg(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
struct bootrom_id_le id;
|
|
u32 loop_cnt;
|
|
int err;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
|
|
loop_cnt = 0;
|
|
do {
|
|
mdelay(BRCMF_USB_RESET_GETVER_SPINWAIT);
|
|
loop_cnt++;
|
|
id.chip = cpu_to_le32(0xDEAD); /* Get the ID */
|
|
err = brcmf_usb_dl_cmd(devinfo, DL_GETVER, &id, sizeof(id));
|
|
if ((err) && (err != -ETIMEDOUT))
|
|
return err;
|
|
if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID))
|
|
break;
|
|
} while (loop_cnt < BRCMF_USB_RESET_GETVER_LOOP_CNT);
|
|
|
|
if (id.chip == cpu_to_le32(BRCMF_POSTBOOT_ID)) {
|
|
brcmf_dbg(USB, "postboot chip 0x%x/rev 0x%x\n",
|
|
le32_to_cpu(id.chip), le32_to_cpu(id.chiprev));
|
|
|
|
brcmf_usb_dl_cmd(devinfo, DL_RESETCFG, &id, sizeof(id));
|
|
return 0;
|
|
} else {
|
|
brcmf_err("Cannot talk to Dongle. Firmware is not UP, %d ms\n",
|
|
BRCMF_USB_RESET_GETVER_SPINWAIT * loop_cnt);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
|
|
static int
|
|
brcmf_usb_dl_send_bulk(struct brcmf_usbdev_info *devinfo, void *buffer, int len)
|
|
{
|
|
int ret;
|
|
|
|
if ((devinfo == NULL) || (devinfo->bulk_urb == NULL))
|
|
return -EINVAL;
|
|
|
|
/* Prepare the URB */
|
|
usb_fill_bulk_urb(devinfo->bulk_urb, devinfo->usbdev,
|
|
devinfo->tx_pipe, buffer, len,
|
|
(usb_complete_t)brcmf_usb_sync_complete, devinfo);
|
|
|
|
devinfo->bulk_urb->transfer_flags |= URB_ZERO_PACKET;
|
|
|
|
devinfo->ctl_completed = false;
|
|
ret = usb_submit_urb(devinfo->bulk_urb, GFP_ATOMIC);
|
|
if (ret) {
|
|
brcmf_err("usb_submit_urb failed %d\n", ret);
|
|
return ret;
|
|
}
|
|
ret = brcmf_usb_ioctl_resp_wait(devinfo);
|
|
return (ret == 0);
|
|
}
|
|
|
|
static int
|
|
brcmf_usb_dl_writeimage(struct brcmf_usbdev_info *devinfo, u8 *fw, int fwlen)
|
|
{
|
|
unsigned int sendlen, sent, dllen;
|
|
char *bulkchunk = NULL, *dlpos;
|
|
struct rdl_state_le state;
|
|
u32 rdlstate, rdlbytes;
|
|
int err = 0;
|
|
|
|
brcmf_dbg(USB, "Enter, fw %p, len %d\n", fw, fwlen);
|
|
|
|
bulkchunk = kmalloc(TRX_RDL_CHUNK, GFP_ATOMIC);
|
|
if (bulkchunk == NULL) {
|
|
err = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
/* 1) Prepare USB boot loader for runtime image */
|
|
brcmf_usb_dl_cmd(devinfo, DL_START, &state, sizeof(state));
|
|
|
|
rdlstate = le32_to_cpu(state.state);
|
|
rdlbytes = le32_to_cpu(state.bytes);
|
|
|
|
/* 2) Check we are in the Waiting state */
|
|
if (rdlstate != DL_WAITING) {
|
|
brcmf_err("Failed to DL_START\n");
|
|
err = -EINVAL;
|
|
goto fail;
|
|
}
|
|
sent = 0;
|
|
dlpos = fw;
|
|
dllen = fwlen;
|
|
|
|
/* Get chip id and rev */
|
|
while (rdlbytes != dllen) {
|
|
/* Wait until the usb device reports it received all
|
|
* the bytes we sent */
|
|
if ((rdlbytes == sent) && (rdlbytes != dllen)) {
|
|
if ((dllen-sent) < TRX_RDL_CHUNK)
|
|
sendlen = dllen-sent;
|
|
else
|
|
sendlen = TRX_RDL_CHUNK;
|
|
|
|
/* simply avoid having to send a ZLP by ensuring we
|
|
* never have an even
|
|
* multiple of 64
|
|
*/
|
|
if (!(sendlen % 64))
|
|
sendlen -= 4;
|
|
|
|
/* send data */
|
|
memcpy(bulkchunk, dlpos, sendlen);
|
|
if (brcmf_usb_dl_send_bulk(devinfo, bulkchunk,
|
|
sendlen)) {
|
|
brcmf_err("send_bulk failed\n");
|
|
err = -EINVAL;
|
|
goto fail;
|
|
}
|
|
|
|
dlpos += sendlen;
|
|
sent += sendlen;
|
|
}
|
|
err = brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state,
|
|
sizeof(state));
|
|
if (err) {
|
|
brcmf_err("DL_GETSTATE Failed\n");
|
|
goto fail;
|
|
}
|
|
|
|
rdlstate = le32_to_cpu(state.state);
|
|
rdlbytes = le32_to_cpu(state.bytes);
|
|
|
|
/* restart if an error is reported */
|
|
if (rdlstate == DL_BAD_HDR || rdlstate == DL_BAD_CRC) {
|
|
brcmf_err("Bad Hdr or Bad CRC state %d\n",
|
|
rdlstate);
|
|
err = -EINVAL;
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
fail:
|
|
kfree(bulkchunk);
|
|
brcmf_dbg(USB, "Exit, err=%d\n", err);
|
|
return err;
|
|
}
|
|
|
|
static int brcmf_usb_dlstart(struct brcmf_usbdev_info *devinfo, u8 *fw, int len)
|
|
{
|
|
int err;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
|
|
if (devinfo == NULL)
|
|
return -EINVAL;
|
|
|
|
if (devinfo->bus_pub.devid == 0xDEAD)
|
|
return -EINVAL;
|
|
|
|
err = brcmf_usb_dl_writeimage(devinfo, fw, len);
|
|
if (err == 0)
|
|
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_DONE;
|
|
else
|
|
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DL_FAIL;
|
|
brcmf_dbg(USB, "Exit, err=%d\n", err);
|
|
|
|
return err;
|
|
}
|
|
|
|
static int brcmf_usb_dlrun(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
struct rdl_state_le state;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
if (!devinfo)
|
|
return -EINVAL;
|
|
|
|
if (devinfo->bus_pub.devid == 0xDEAD)
|
|
return -EINVAL;
|
|
|
|
/* Check we are runnable */
|
|
state.state = 0;
|
|
brcmf_usb_dl_cmd(devinfo, DL_GETSTATE, &state, sizeof(state));
|
|
|
|
/* Start the image */
|
|
if (state.state == cpu_to_le32(DL_RUNNABLE)) {
|
|
if (brcmf_usb_dl_cmd(devinfo, DL_GO, &state, sizeof(state)))
|
|
return -ENODEV;
|
|
if (brcmf_usb_resetcfg(devinfo))
|
|
return -ENODEV;
|
|
/* The Dongle may go for re-enumeration. */
|
|
} else {
|
|
brcmf_err("Dongle not runnable\n");
|
|
return -EINVAL;
|
|
}
|
|
brcmf_dbg(USB, "Exit\n");
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
brcmf_usb_fw_download(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
int err;
|
|
struct usb_interface *intf;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
if (!devinfo) {
|
|
err = -ENODEV;
|
|
goto out;
|
|
}
|
|
|
|
if (!devinfo->image) {
|
|
brcmf_err("No firmware!\n");
|
|
err = -ENOENT;
|
|
goto out;
|
|
}
|
|
|
|
intf = to_usb_interface(devinfo->dev);
|
|
err = usb_autopm_get_interface(intf);
|
|
if (err)
|
|
goto out;
|
|
|
|
err = brcmf_usb_dlstart(devinfo,
|
|
(u8 *)devinfo->image, devinfo->image_len);
|
|
if (err == 0)
|
|
err = brcmf_usb_dlrun(devinfo);
|
|
|
|
usb_autopm_put_interface(intf);
|
|
out:
|
|
return err;
|
|
}
|
|
|
|
|
|
static void brcmf_usb_detach(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
brcmf_dbg(USB, "Enter, devinfo %p\n", devinfo);
|
|
|
|
/* free the URBS */
|
|
brcmf_usb_free_q(&devinfo->rx_freeq);
|
|
brcmf_usb_free_q(&devinfo->tx_freeq);
|
|
|
|
usb_free_urb(devinfo->ctl_urb);
|
|
usb_free_urb(devinfo->bulk_urb);
|
|
|
|
kfree(devinfo->tx_reqs);
|
|
kfree(devinfo->rx_reqs);
|
|
|
|
if (devinfo->settings)
|
|
brcmf_release_module_param(devinfo->settings);
|
|
}
|
|
|
|
|
|
static int check_file(const u8 *headers)
|
|
{
|
|
struct trx_header_le *trx;
|
|
int actual_len = -1;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
/* Extract trx header */
|
|
trx = (struct trx_header_le *) headers;
|
|
if (trx->magic != cpu_to_le32(TRX_MAGIC))
|
|
return -1;
|
|
|
|
headers += sizeof(struct trx_header_le);
|
|
|
|
if (le32_to_cpu(trx->flag_version) & TRX_UNCOMP_IMAGE) {
|
|
actual_len = le32_to_cpu(trx->offsets[TRX_OFFSETS_DLFWLEN_IDX]);
|
|
return actual_len + sizeof(struct trx_header_le);
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
|
|
static
|
|
struct brcmf_usbdev *brcmf_usb_attach(struct brcmf_usbdev_info *devinfo,
|
|
int nrxq, int ntxq)
|
|
{
|
|
brcmf_dbg(USB, "Enter\n");
|
|
|
|
devinfo->bus_pub.nrxq = nrxq;
|
|
devinfo->rx_low_watermark = nrxq / 2;
|
|
devinfo->bus_pub.devinfo = devinfo;
|
|
devinfo->bus_pub.ntxq = ntxq;
|
|
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_DOWN;
|
|
|
|
/* flow control when too many tx urbs posted */
|
|
devinfo->tx_low_watermark = ntxq / 4;
|
|
devinfo->tx_high_watermark = devinfo->tx_low_watermark * 3;
|
|
devinfo->bus_pub.bus_mtu = BRCMF_USB_MAX_PKT_SIZE;
|
|
|
|
/* Initialize other structure content */
|
|
init_waitqueue_head(&devinfo->ioctl_resp_wait);
|
|
|
|
/* Initialize the spinlocks */
|
|
spin_lock_init(&devinfo->qlock);
|
|
spin_lock_init(&devinfo->tx_flowblock_lock);
|
|
|
|
INIT_LIST_HEAD(&devinfo->rx_freeq);
|
|
INIT_LIST_HEAD(&devinfo->rx_postq);
|
|
|
|
INIT_LIST_HEAD(&devinfo->tx_freeq);
|
|
INIT_LIST_HEAD(&devinfo->tx_postq);
|
|
|
|
devinfo->tx_flowblock = false;
|
|
|
|
devinfo->rx_reqs = brcmf_usbdev_qinit(&devinfo->rx_freeq, nrxq);
|
|
if (!devinfo->rx_reqs)
|
|
goto error;
|
|
|
|
devinfo->tx_reqs = brcmf_usbdev_qinit(&devinfo->tx_freeq, ntxq);
|
|
if (!devinfo->tx_reqs)
|
|
goto error;
|
|
devinfo->tx_freecount = ntxq;
|
|
|
|
devinfo->ctl_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
if (!devinfo->ctl_urb)
|
|
goto error;
|
|
devinfo->bulk_urb = usb_alloc_urb(0, GFP_ATOMIC);
|
|
if (!devinfo->bulk_urb)
|
|
goto error;
|
|
|
|
return &devinfo->bus_pub;
|
|
|
|
error:
|
|
brcmf_err("failed!\n");
|
|
brcmf_usb_detach(devinfo);
|
|
return NULL;
|
|
}
|
|
|
|
static int brcmf_usb_get_blob(struct device *dev, const struct firmware **fw,
|
|
enum brcmf_blob_type type)
|
|
{
|
|
/* No blobs for USB devices... */
|
|
return -ENOENT;
|
|
}
|
|
|
|
static const struct brcmf_bus_ops brcmf_usb_bus_ops = {
|
|
.preinit = brcmf_usb_up,
|
|
.stop = brcmf_usb_down,
|
|
.txdata = brcmf_usb_tx,
|
|
.txctl = brcmf_usb_tx_ctlpkt,
|
|
.rxctl = brcmf_usb_rx_ctlpkt,
|
|
.get_blob = brcmf_usb_get_blob,
|
|
};
|
|
|
|
#define BRCMF_USB_FW_CODE 0
|
|
|
|
static void brcmf_usb_probe_phase2(struct device *dev, int ret,
|
|
struct brcmf_fw_request *fwreq)
|
|
{
|
|
struct brcmf_bus *bus = dev_get_drvdata(dev);
|
|
struct brcmf_usbdev_info *devinfo = bus->bus_priv.usb->devinfo;
|
|
const struct firmware *fw;
|
|
|
|
if (ret)
|
|
goto error;
|
|
|
|
brcmf_dbg(USB, "Start fw downloading\n");
|
|
|
|
fw = fwreq->items[BRCMF_USB_FW_CODE].binary;
|
|
kfree(fwreq);
|
|
|
|
ret = check_file(fw->data);
|
|
if (ret < 0) {
|
|
brcmf_err("invalid firmware\n");
|
|
release_firmware(fw);
|
|
goto error;
|
|
}
|
|
|
|
devinfo->image = fw->data;
|
|
devinfo->image_len = fw->size;
|
|
|
|
ret = brcmf_usb_fw_download(devinfo);
|
|
release_firmware(fw);
|
|
if (ret)
|
|
goto error;
|
|
|
|
ret = brcmf_alloc(devinfo->dev, devinfo->settings);
|
|
if (ret)
|
|
goto error;
|
|
|
|
/* Attach to the common driver interface */
|
|
ret = brcmf_attach(devinfo->dev);
|
|
if (ret)
|
|
goto error;
|
|
|
|
complete(&devinfo->dev_init_done);
|
|
return;
|
|
error:
|
|
brcmf_dbg(TRACE, "failed: dev=%s, err=%d\n", dev_name(dev), ret);
|
|
complete(&devinfo->dev_init_done);
|
|
device_release_driver(dev);
|
|
}
|
|
|
|
static struct brcmf_fw_request *
|
|
brcmf_usb_prepare_fw_request(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
struct brcmf_fw_request *fwreq;
|
|
struct brcmf_fw_name fwnames[] = {
|
|
{ ".bin", devinfo->fw_name },
|
|
};
|
|
|
|
fwreq = brcmf_fw_alloc_request(devinfo->bus_pub.devid,
|
|
devinfo->bus_pub.chiprev,
|
|
brcmf_usb_fwnames,
|
|
ARRAY_SIZE(brcmf_usb_fwnames),
|
|
fwnames, ARRAY_SIZE(fwnames));
|
|
if (!fwreq)
|
|
return NULL;
|
|
|
|
fwreq->items[BRCMF_USB_FW_CODE].type = BRCMF_FW_TYPE_BINARY;
|
|
|
|
return fwreq;
|
|
}
|
|
|
|
static int brcmf_usb_probe_cb(struct brcmf_usbdev_info *devinfo,
|
|
enum brcmf_fwvendor fwvid)
|
|
{
|
|
struct brcmf_bus *bus = NULL;
|
|
struct brcmf_usbdev *bus_pub = NULL;
|
|
struct device *dev = devinfo->dev;
|
|
struct brcmf_fw_request *fwreq;
|
|
int ret;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
bus_pub = brcmf_usb_attach(devinfo, BRCMF_USB_NRXQ, BRCMF_USB_NTXQ);
|
|
if (!bus_pub)
|
|
return -ENODEV;
|
|
|
|
bus = kzalloc(sizeof(struct brcmf_bus), GFP_ATOMIC);
|
|
if (!bus) {
|
|
ret = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
bus->dev = dev;
|
|
bus_pub->bus = bus;
|
|
bus->bus_priv.usb = bus_pub;
|
|
dev_set_drvdata(dev, bus);
|
|
bus->ops = &brcmf_usb_bus_ops;
|
|
bus->proto_type = BRCMF_PROTO_BCDC;
|
|
bus->fwvid = fwvid;
|
|
bus->always_use_fws_queue = true;
|
|
#ifdef CONFIG_PM
|
|
bus->wowl_supported = true;
|
|
#endif
|
|
|
|
devinfo->settings = brcmf_get_module_param(bus->dev, BRCMF_BUSTYPE_USB,
|
|
bus_pub->devid,
|
|
bus_pub->chiprev);
|
|
if (!devinfo->settings) {
|
|
ret = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
if (!brcmf_usb_dlneeded(devinfo)) {
|
|
ret = brcmf_alloc(devinfo->dev, devinfo->settings);
|
|
if (ret)
|
|
goto fail;
|
|
ret = brcmf_attach(devinfo->dev);
|
|
if (ret)
|
|
goto fail;
|
|
/* we are done */
|
|
complete(&devinfo->dev_init_done);
|
|
return 0;
|
|
}
|
|
bus->chip = bus_pub->devid;
|
|
bus->chiprev = bus_pub->chiprev;
|
|
|
|
fwreq = brcmf_usb_prepare_fw_request(devinfo);
|
|
if (!fwreq) {
|
|
ret = -ENOMEM;
|
|
goto fail;
|
|
}
|
|
|
|
/* request firmware here */
|
|
ret = brcmf_fw_get_firmwares(dev, fwreq, brcmf_usb_probe_phase2);
|
|
if (ret) {
|
|
brcmf_err("firmware request failed: %d\n", ret);
|
|
kfree(fwreq);
|
|
goto fail;
|
|
}
|
|
|
|
return 0;
|
|
|
|
fail:
|
|
/* Release resources in reverse order */
|
|
brcmf_free(devinfo->dev);
|
|
kfree(bus);
|
|
brcmf_usb_detach(devinfo);
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
brcmf_usb_disconnect_cb(struct brcmf_usbdev_info *devinfo)
|
|
{
|
|
if (!devinfo)
|
|
return;
|
|
brcmf_dbg(USB, "Enter, bus_pub %p\n", devinfo);
|
|
|
|
brcmf_detach(devinfo->dev);
|
|
brcmf_free(devinfo->dev);
|
|
kfree(devinfo->bus_pub.bus);
|
|
brcmf_usb_detach(devinfo);
|
|
}
|
|
|
|
/* Forward declaration for usb_match_id() call */
|
|
static const struct usb_device_id brcmf_usb_devid_table[];
|
|
|
|
static int
|
|
brcmf_usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
|
|
{
|
|
struct usb_device *usb = interface_to_usbdev(intf);
|
|
struct brcmf_usbdev_info *devinfo;
|
|
struct usb_interface_descriptor *desc;
|
|
struct usb_endpoint_descriptor *endpoint;
|
|
int ret = 0;
|
|
u32 num_of_eps;
|
|
u8 endpoint_num, ep;
|
|
|
|
if (!id) {
|
|
id = usb_match_id(intf, brcmf_usb_devid_table);
|
|
if (!id) {
|
|
dev_err(&intf->dev, "Error could not find matching usb_device_id\n");
|
|
return -ENODEV;
|
|
}
|
|
}
|
|
|
|
brcmf_dbg(USB, "Enter 0x%04x:0x%04x\n", id->idVendor, id->idProduct);
|
|
|
|
devinfo = kzalloc(sizeof(*devinfo), GFP_ATOMIC);
|
|
if (devinfo == NULL)
|
|
return -ENOMEM;
|
|
|
|
devinfo->usbdev = usb;
|
|
devinfo->dev = &usb->dev;
|
|
/* Init completion, to protect for disconnect while still loading.
|
|
* Necessary because of the asynchronous firmware load construction
|
|
*/
|
|
init_completion(&devinfo->dev_init_done);
|
|
|
|
usb_set_intfdata(intf, devinfo);
|
|
|
|
intf->needs_remote_wakeup = 1;
|
|
|
|
/* Check that the device supports only one configuration */
|
|
if (usb->descriptor.bNumConfigurations != 1) {
|
|
brcmf_err("Number of configurations: %d not supported\n",
|
|
usb->descriptor.bNumConfigurations);
|
|
ret = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
if ((usb->descriptor.bDeviceClass != USB_CLASS_VENDOR_SPEC) &&
|
|
(usb->descriptor.bDeviceClass != USB_CLASS_MISC) &&
|
|
(usb->descriptor.bDeviceClass != USB_CLASS_WIRELESS_CONTROLLER)) {
|
|
brcmf_err("Device class: 0x%x not supported\n",
|
|
usb->descriptor.bDeviceClass);
|
|
ret = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
desc = &intf->cur_altsetting->desc;
|
|
if ((desc->bInterfaceClass != USB_CLASS_VENDOR_SPEC) ||
|
|
(desc->bInterfaceSubClass != 2) ||
|
|
(desc->bInterfaceProtocol != 0xff)) {
|
|
brcmf_err("non WLAN interface %d: 0x%x:0x%x:0x%x\n",
|
|
desc->bInterfaceNumber, desc->bInterfaceClass,
|
|
desc->bInterfaceSubClass, desc->bInterfaceProtocol);
|
|
ret = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
num_of_eps = desc->bNumEndpoints;
|
|
for (ep = 0; ep < num_of_eps; ep++) {
|
|
endpoint = &intf->cur_altsetting->endpoint[ep].desc;
|
|
endpoint_num = usb_endpoint_num(endpoint);
|
|
if (!usb_endpoint_xfer_bulk(endpoint))
|
|
continue;
|
|
if (usb_endpoint_dir_in(endpoint)) {
|
|
if (!devinfo->rx_pipe)
|
|
devinfo->rx_pipe =
|
|
usb_rcvbulkpipe(usb, endpoint_num);
|
|
} else {
|
|
if (!devinfo->tx_pipe)
|
|
devinfo->tx_pipe =
|
|
usb_sndbulkpipe(usb, endpoint_num);
|
|
}
|
|
}
|
|
if (devinfo->rx_pipe == 0) {
|
|
brcmf_err("No RX (in) Bulk EP found\n");
|
|
ret = -ENODEV;
|
|
goto fail;
|
|
}
|
|
if (devinfo->tx_pipe == 0) {
|
|
brcmf_err("No TX (out) Bulk EP found\n");
|
|
ret = -ENODEV;
|
|
goto fail;
|
|
}
|
|
|
|
devinfo->ifnum = desc->bInterfaceNumber;
|
|
|
|
if (usb->speed == USB_SPEED_SUPER_PLUS)
|
|
brcmf_dbg(USB, "Broadcom super speed plus USB WLAN interface detected\n");
|
|
else if (usb->speed == USB_SPEED_SUPER)
|
|
brcmf_dbg(USB, "Broadcom super speed USB WLAN interface detected\n");
|
|
else if (usb->speed == USB_SPEED_HIGH)
|
|
brcmf_dbg(USB, "Broadcom high speed USB WLAN interface detected\n");
|
|
else
|
|
brcmf_dbg(USB, "Broadcom full speed USB WLAN interface detected\n");
|
|
|
|
ret = brcmf_usb_probe_cb(devinfo, id->driver_info);
|
|
if (ret)
|
|
goto fail;
|
|
|
|
/* Success */
|
|
return 0;
|
|
|
|
fail:
|
|
complete(&devinfo->dev_init_done);
|
|
kfree(devinfo);
|
|
usb_set_intfdata(intf, NULL);
|
|
return ret;
|
|
}
|
|
|
|
static void
|
|
brcmf_usb_disconnect(struct usb_interface *intf)
|
|
{
|
|
struct brcmf_usbdev_info *devinfo;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
devinfo = (struct brcmf_usbdev_info *)usb_get_intfdata(intf);
|
|
|
|
if (devinfo) {
|
|
wait_for_completion(&devinfo->dev_init_done);
|
|
/* Make sure that devinfo still exists. Firmware probe routines
|
|
* may have released the device and cleared the intfdata.
|
|
*/
|
|
if (!usb_get_intfdata(intf))
|
|
goto done;
|
|
|
|
brcmf_usb_disconnect_cb(devinfo);
|
|
kfree(devinfo);
|
|
}
|
|
done:
|
|
brcmf_dbg(USB, "Exit\n");
|
|
}
|
|
|
|
/*
|
|
* only need to signal the bus being down and update the state.
|
|
*/
|
|
static int brcmf_usb_suspend(struct usb_interface *intf, pm_message_t state)
|
|
{
|
|
struct usb_device *usb = interface_to_usbdev(intf);
|
|
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_SLEEP;
|
|
brcmf_cancel_all_urbs(devinfo);
|
|
device_set_wakeup_enable(devinfo->dev, true);
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* (re-) start the bus.
|
|
*/
|
|
static int brcmf_usb_resume(struct usb_interface *intf)
|
|
{
|
|
struct usb_device *usb = interface_to_usbdev(intf);
|
|
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
|
|
devinfo->bus_pub.state = BRCMFMAC_USB_STATE_UP;
|
|
brcmf_usb_rx_fill_all(devinfo);
|
|
device_set_wakeup_enable(devinfo->dev, false);
|
|
return 0;
|
|
}
|
|
|
|
static int brcmf_usb_reset_resume(struct usb_interface *intf)
|
|
{
|
|
struct usb_device *usb = interface_to_usbdev(intf);
|
|
struct brcmf_usbdev_info *devinfo = brcmf_usb_get_businfo(&usb->dev);
|
|
struct brcmf_fw_request *fwreq;
|
|
int ret;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
|
|
fwreq = brcmf_usb_prepare_fw_request(devinfo);
|
|
if (!fwreq)
|
|
return -ENOMEM;
|
|
|
|
ret = brcmf_fw_get_firmwares(&usb->dev, fwreq, brcmf_usb_probe_phase2);
|
|
if (ret < 0)
|
|
kfree(fwreq);
|
|
|
|
return ret;
|
|
}
|
|
|
|
#define BRCMF_USB_DEVICE(dev_id) \
|
|
{ \
|
|
USB_DEVICE(BRCM_USB_VENDOR_ID_BROADCOM, dev_id), \
|
|
.driver_info = BRCMF_FWVENDOR_WCC \
|
|
}
|
|
|
|
#define LINKSYS_USB_DEVICE(dev_id) \
|
|
{ \
|
|
USB_DEVICE(BRCM_USB_VENDOR_ID_LINKSYS, dev_id), \
|
|
.driver_info = BRCMF_FWVENDOR_WCC \
|
|
}
|
|
|
|
#define CYPRESS_USB_DEVICE(dev_id) \
|
|
{ \
|
|
USB_DEVICE(CY_USB_VENDOR_ID_CYPRESS, dev_id), \
|
|
.driver_info = BRCMF_FWVENDOR_WCC \
|
|
}
|
|
|
|
static const struct usb_device_id brcmf_usb_devid_table[] = {
|
|
BRCMF_USB_DEVICE(BRCM_USB_43143_DEVICE_ID),
|
|
BRCMF_USB_DEVICE(BRCM_USB_43236_DEVICE_ID),
|
|
BRCMF_USB_DEVICE(BRCM_USB_43242_DEVICE_ID),
|
|
BRCMF_USB_DEVICE(BRCM_USB_43569_DEVICE_ID),
|
|
LINKSYS_USB_DEVICE(BRCM_USB_43235_LINKSYS_DEVICE_ID),
|
|
CYPRESS_USB_DEVICE(CY_USB_4373_DEVICE_ID),
|
|
{ USB_DEVICE(BRCM_USB_VENDOR_ID_LG, BRCM_USB_43242_LG_DEVICE_ID) },
|
|
/* special entry for device with firmware loaded and running */
|
|
BRCMF_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
|
|
CYPRESS_USB_DEVICE(BRCM_USB_BCMFW_DEVICE_ID),
|
|
{ /* end: all zeroes */ }
|
|
};
|
|
|
|
MODULE_DEVICE_TABLE(usb, brcmf_usb_devid_table);
|
|
|
|
static struct usb_driver brcmf_usbdrvr = {
|
|
.name = KBUILD_MODNAME,
|
|
.probe = brcmf_usb_probe,
|
|
.disconnect = brcmf_usb_disconnect,
|
|
.id_table = brcmf_usb_devid_table,
|
|
.suspend = brcmf_usb_suspend,
|
|
.resume = brcmf_usb_resume,
|
|
.reset_resume = brcmf_usb_reset_resume,
|
|
.supports_autosuspend = true,
|
|
.disable_hub_initiated_lpm = 1,
|
|
};
|
|
|
|
static int brcmf_usb_reset_device(struct device *dev, void *notused)
|
|
{
|
|
/* device past is the usb interface so we
|
|
* need to use parent here.
|
|
*/
|
|
brcmf_dev_reset(dev->parent);
|
|
return 0;
|
|
}
|
|
|
|
void brcmf_usb_exit(void)
|
|
{
|
|
struct device_driver *drv = &brcmf_usbdrvr.drvwrap.driver;
|
|
int ret;
|
|
|
|
brcmf_dbg(USB, "Enter\n");
|
|
ret = driver_for_each_device(drv, NULL, NULL,
|
|
brcmf_usb_reset_device);
|
|
if (ret)
|
|
brcmf_err("failed to reset all usb devices %d\n", ret);
|
|
|
|
usb_deregister(&brcmf_usbdrvr);
|
|
}
|
|
|
|
int brcmf_usb_register(void)
|
|
{
|
|
brcmf_dbg(USB, "Enter\n");
|
|
return usb_register(&brcmf_usbdrvr);
|
|
}
|