1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * Copyright (c) 2021 pureLiFi 4 */ 5 6 #include <linux/kernel.h> 7 #include <linux/errno.h> 8 9 #include "chip.h" 10 #include "mac.h" 11 #include "usb.h" 12 13 void plfxlc_chip_init(struct plfxlc_chip *chip, 14 struct ieee80211_hw *hw, 15 struct usb_interface *intf) 16 { 17 memset(chip, 0, sizeof(*chip)); 18 mutex_init(&chip->mutex); 19 plfxlc_usb_init(&chip->usb, hw, intf); 20 } 21 22 void plfxlc_chip_release(struct plfxlc_chip *chip) 23 { 24 plfxlc_usb_release(&chip->usb); 25 mutex_destroy(&chip->mutex); 26 } 27 28 int plfxlc_set_beacon_interval(struct plfxlc_chip *chip, u16 interval, 29 u8 dtim_period, int type) 30 { 31 if (!interval || 32 (chip->beacon_set && chip->beacon_interval == interval)) 33 return 0; 34 35 chip->beacon_interval = interval; 36 chip->beacon_set = true; 37 return plfxlc_usb_wreq(chip->usb.ez_usb, 38 &chip->beacon_interval, 39 sizeof(chip->beacon_interval), 40 USB_REQ_BEACON_INTERVAL_WR); 41 } 42 43 int plfxlc_chip_init_hw(struct plfxlc_chip *chip) 44 { 45 unsigned char *addr = plfxlc_mac_get_perm_addr(plfxlc_chip_to_mac(chip)); 46 struct usb_device *udev = interface_to_usbdev(chip->usb.intf); 47 48 pr_info("plfxlc chip %04x:%04x v%02x %pM %s\n", 49 le16_to_cpu(udev->descriptor.idVendor), 50 le16_to_cpu(udev->descriptor.idProduct), 51 le16_to_cpu(udev->descriptor.bcdDevice), 52 addr, 53 plfxlc_speed(udev->speed)); 54 55 return plfxlc_set_beacon_interval(chip, 100, 0, 0); 56 } 57 58 int plfxlc_chip_switch_radio(struct plfxlc_chip *chip, u16 value) 59 { 60 int r; 61 __le16 radio_on = cpu_to_le16(value); 62 63 r = plfxlc_usb_wreq(chip->usb.ez_usb, &radio_on, 64 sizeof(value), USB_REQ_POWER_WR); 65 if (r) 66 dev_err(plfxlc_chip_dev(chip), "POWER_WR failed (%d)\n", r); 67 return r; 68 } 69 70 int plfxlc_chip_enable_rxtx(struct plfxlc_chip *chip) 71 { 72 plfxlc_usb_enable_tx(&chip->usb); 73 return plfxlc_usb_enable_rx(&chip->usb); 74 } 75 76 void plfxlc_chip_disable_rxtx(struct plfxlc_chip *chip) 77 { 78 u8 value = 0; 79 80 plfxlc_usb_wreq(chip->usb.ez_usb, 81 &value, sizeof(value), USB_REQ_RXTX_WR); 82 plfxlc_usb_disable_rx(&chip->usb); 83 plfxlc_usb_disable_tx(&chip->usb); 84 } 85 86 int plfxlc_chip_set_rate(struct plfxlc_chip *chip, u8 rate) 87 { 88 int r; 89 90 if (!chip) 91 return -EINVAL; 92 93 r = plfxlc_usb_wreq(chip->usb.ez_usb, 94 &rate, sizeof(rate), USB_REQ_RATE_WR); 95 if (r) 96 dev_err(plfxlc_chip_dev(chip), "RATE_WR failed (%d)\n", r); 97 return r; 98 } 99