// SPDX-License-Identifier: GPL-2.0-only /* * This file contains functions used in USB interface module. */ #define pr_fmt(fmt) … #include <linux/delay.h> #include <linux/module.h> #include <linux/firmware.h> #include <linux/netdevice.h> #include <linux/slab.h> #include <linux/usb.h> #include <linux/olpc-ec.h> #ifdef CONFIG_OLPC #include <asm/olpc.h> #endif #define DRV_NAME … #include "host.h" #include "decl.h" #include "defs.h" #include "dev.h" #include "cmd.h" #include "if_usb.h" #define INSANEDEBUG … #define lbs_deb_usb2(...) … #define MESSAGE_HEADER_LEN … MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; MODULE_FIRMWARE(…) …; enum { … }; /* table of firmware file names */ static const struct lbs_fw_table fw_table[] = …; static const struct usb_device_id if_usb_table[] = …; MODULE_DEVICE_TABLE(usb, if_usb_table); static void if_usb_receive(struct urb *urb); static void if_usb_receive_fwload(struct urb *urb); static void if_usb_prog_firmware(struct lbs_private *priv, int ret, const struct firmware *fw, const struct firmware *unused); static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type, uint8_t *payload, uint16_t nb); static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb); static void if_usb_free(struct if_usb_card *cardp); static int if_usb_submit_rx_urb(struct if_usb_card *cardp); static int if_usb_reset_device(struct if_usb_card *cardp); /** * if_usb_write_bulk_callback - callback function to handle the status * of the URB * @urb: pointer to &urb structure * returns: N/A */ static void if_usb_write_bulk_callback(struct urb *urb) { … } /** * if_usb_free - free tx/rx urb, skb and rx buffer * @cardp: pointer to &if_usb_card * returns: N/A */ static void if_usb_free(struct if_usb_card *cardp) { … } static void if_usb_setup_firmware(struct lbs_private *priv) { … } static void if_usb_fw_timeo(struct timer_list *t) { … } #ifdef CONFIG_OLPC static void if_usb_reset_olpc_card(struct lbs_private *priv) { printk(KERN_CRIT "Resetting OLPC wireless via EC...\n"); olpc_ec_cmd(0x25, NULL, 0, NULL, 0); } #endif /** * if_usb_probe - sets the configuration values * @intf: &usb_interface pointer * @id: pointer to usb_device_id * returns: 0 on success, error code on failure */ static int if_usb_probe(struct usb_interface *intf, const struct usb_device_id *id) { … } /** * if_usb_disconnect - free resource and cleanup * @intf: USB interface structure * returns: N/A */ static void if_usb_disconnect(struct usb_interface *intf) { … } /** * if_usb_send_fw_pkt - download FW * @cardp: pointer to &struct if_usb_card * returns: 0 */ static int if_usb_send_fw_pkt(struct if_usb_card *cardp) { … } static int if_usb_reset_device(struct if_usb_card *cardp) { … } /** * usb_tx_block - transfer the data to the device * @cardp: pointer to &struct if_usb_card * @payload: pointer to payload data * @nb: data length * returns: 0 for success or negative error code */ static int usb_tx_block(struct if_usb_card *cardp, uint8_t *payload, uint16_t nb) { … } static int __if_usb_submit_rx_urb(struct if_usb_card *cardp, void (*callbackfn)(struct urb *urb)) { … } static int if_usb_submit_rx_urb_fwload(struct if_usb_card *cardp) { … } static int if_usb_submit_rx_urb(struct if_usb_card *cardp) { … } static void if_usb_receive_fwload(struct urb *urb) { … } #define MRVDRV_MIN_PKT_LEN … static inline void process_cmdtypedata(int recvlength, struct sk_buff *skb, struct if_usb_card *cardp, struct lbs_private *priv) { … } static inline void process_cmdrequest(int recvlength, uint8_t *recvbuff, struct sk_buff *skb, struct if_usb_card *cardp, struct lbs_private *priv) { … } /** * if_usb_receive - read the packet into the upload buffer, * wake up the main thread and initialise the Rx callack * * @urb: pointer to &struct urb * returns: N/A */ static void if_usb_receive(struct urb *urb) { … } /** * if_usb_host_to_card - downloads data to FW * @priv: pointer to &struct lbs_private structure * @type: type of data * @payload: pointer to data buffer * @nb: number of bytes * returns: 0 for success or negative error code */ static int if_usb_host_to_card(struct lbs_private *priv, uint8_t type, uint8_t *payload, uint16_t nb) { … } /** * if_usb_issue_boot_command - issues Boot command to the Boot2 code * @cardp: pointer to &if_usb_card * @ivalue: 1:Boot from FW by USB-Download * 2:Boot from FW in EEPROM * returns: 0 for success or negative error code */ static int if_usb_issue_boot_command(struct if_usb_card *cardp, int ivalue) { … } /** * check_fwfile_format - check the validity of Boot2/FW image * * @data: pointer to image * @totlen: image length * returns: 0 (good) or 1 (failure) */ static int check_fwfile_format(const uint8_t *data, uint32_t totlen) { … } static void if_usb_prog_firmware(struct lbs_private *priv, int ret, const struct firmware *fw, const struct firmware *unused) { … } #ifdef CONFIG_PM static int if_usb_suspend(struct usb_interface *intf, pm_message_t message) { … } static int if_usb_resume(struct usb_interface *intf) { … } #else #define if_usb_suspend … #define if_usb_resume … #endif static struct usb_driver if_usb_driver = …; module_usb_driver(…) …; MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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