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1596 lines
39 KiB
1596 lines
39 KiB
// 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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|
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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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|
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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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|
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#define IOCTL_RESP_TIMEOUT msecs_to_jiffies(2000) |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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struct brcmf_usbreq *tx_reqs; |
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struct brcmf_usbreq *rx_reqs; |
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|
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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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|
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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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|
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struct urb *bulk_urb; /* used for FW download */ |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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if (unlikely(devinfo == NULL)) |
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return; |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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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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|
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brcmf_dbg(USB, "Enter\n"); |
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|
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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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|
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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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|
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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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|
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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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|
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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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|
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brcmf_dbg(USB, "Enter\n"); |
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|
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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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|
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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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|
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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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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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static void brcmf_usb_free_q(struct list_head *q) |
|
{ |
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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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} |
|
usb_free_urb(req->urb); |
|
list_del_init(&req->list); |
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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) |
|
{ |
|
unsigned long flags; |
|
|
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spin_lock_irqsave(&devinfo->qlock, flags); |
|
list_del_init(&req->list); |
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spin_unlock_irqrestore(&devinfo->qlock, flags); |
|
} |
|
|
|
|
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static void brcmf_usb_tx_complete(struct urb *urb) |
|
{ |
|
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); |
|
|
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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) { |
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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; |
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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_fwname(struct device *dev, const char *ext, u8 *fw_name, |
|
bool board_specific) |
|
{ |
|
struct brcmf_bus *bus = dev_get_drvdata(dev); |
|
struct brcmf_fw_request *fwreq; |
|
struct brcmf_fw_name fwnames[] = { |
|
{ ext, fw_name }, |
|
}; |
|
|
|
if (board_specific) { |
|
fw_name[0] = 0; |
|
return 0; |
|
} |
|
fwreq = brcmf_fw_alloc_request(bus->chip, bus->chiprev, |
|
brcmf_usb_fwnames, |
|
ARRAY_SIZE(brcmf_usb_fwnames), |
|
fwnames, ARRAY_SIZE(fwnames)); |
|
if (!fwreq) |
|
return -ENOMEM; |
|
|
|
kfree(fwreq); |
|
return 0; |
|
} |
|
|
|
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_fwname = brcmf_usb_get_fwname, |
|
}; |
|
|
|
#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) |
|
{ |
|
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->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); |
|
} |
|
|
|
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; |
|
|
|
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); |
|
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) } |
|
|
|
#define LINKSYS_USB_DEVICE(dev_id) \ |
|
{ USB_DEVICE(BRCM_USB_VENDOR_ID_LINKSYS, dev_id) } |
|
|
|
#define CYPRESS_USB_DEVICE(dev_id) \ |
|
{ USB_DEVICE(CY_USB_VENDOR_ID_CYPRESS, dev_id) } |
|
|
|
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); |
|
}
|
|
|