^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * atusb.c - Driver for the ATUSB IEEE 802.15.4 dongle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Written 2013 by Werner Almesberger <werner@almesberger.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright (c) 2015 - 2016 Stefan Schmidt <stefan@datenfreihafen.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Based on at86rf230.c and spi_atusb.c.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * at86rf230.c is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) * Copyright (C) 2009 Siemens AG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) * Written by: Dmitry Eremin-Solenikov <dmitry.baryshkov@siemens.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) * spi_atusb.c is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) * Copyright (c) 2011 Richard Sharpe <realrichardsharpe@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) * Copyright (c) 2011 Stefan Schmidt <stefan@datenfreihafen.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) * Copyright (c) 2011 Werner Almesberger <werner@almesberger.net>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) * USB initialization is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) * Copyright (c) 2013 Alexander Aring <alex.aring@gmail.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) * Busware HUL support is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) * Copyright (c) 2017 Josef Filzmaier <j.filzmaier@gmx.at>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #include <linux/jiffies.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #include <linux/usb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #include <linux/skbuff.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #include <net/cfg802154.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #include <net/mac802154.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #include "at86rf230.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #include "atusb.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define ATUSB_JEDEC_ATMEL 0x1f /* JEDEC manufacturer ID */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define ATUSB_NUM_RX_URBS 4 /* allow for a bit of local latency */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define ATUSB_ALLOC_DELAY_MS 100 /* delay after failed allocation */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define ATUSB_TX_TIMEOUT_MS 200 /* on the air timeout */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) struct atusb {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) struct ieee802154_hw *hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) struct usb_device *usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) struct atusb_chip_data *data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) int shutdown; /* non-zero if shutting down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int err; /* set by first error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /* RX variables */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) struct delayed_work work; /* memory allocations */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) struct usb_anchor idle_urbs; /* URBs waiting to be submitted */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) struct usb_anchor rx_urbs; /* URBs waiting for reception */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) /* TX variables */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) struct usb_ctrlrequest tx_dr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct urb *tx_urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) struct sk_buff *tx_skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) u8 tx_ack_seq; /* current TX ACK sequence number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) /* Firmware variable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) unsigned char fw_ver_maj; /* Firmware major version number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) unsigned char fw_ver_min; /* Firmware minor version number */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) unsigned char fw_hw_type; /* Firmware hardware type */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) struct atusb_chip_data {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) u16 t_channel_switch;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) int rssi_base_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int (*set_channel)(struct ieee802154_hw*, u8, u8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) int (*set_txpower)(struct ieee802154_hw*, s32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) /* ----- USB commands without data ----------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) /* To reduce the number of error checks in the code, we record the first error
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) * in atusb->err and reject all subsequent requests until the error is cleared.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) static int atusb_control_msg(struct atusb *atusb, unsigned int pipe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) __u8 request, __u8 requesttype,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) __u16 value, __u16 index,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) void *data, __u16 size, int timeout)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) if (atusb->err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return atusb->err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) ret = usb_control_msg(usb_dev, pipe, request, requesttype,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) value, index, data, size, timeout);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) if (ret < size) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) ret = ret < 0 ? ret : -ENODATA;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) atusb->err = ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) dev_err(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) "%s: req 0x%02x val 0x%x idx 0x%x, error %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) __func__, request, value, index, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) static int atusb_command(struct atusb *atusb, u8 cmd, u8 arg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) dev_dbg(&usb_dev->dev, "%s: cmd = 0x%x\n", __func__, cmd);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) return atusb_control_msg(atusb, usb_sndctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) cmd, ATUSB_REQ_TO_DEV, arg, 0, NULL, 0, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) static int atusb_write_reg(struct atusb *atusb, u8 reg, u8 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) dev_dbg(&usb_dev->dev, "%s: 0x%02x <- 0x%02x\n", __func__, reg, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) return atusb_control_msg(atusb, usb_sndctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) ATUSB_REG_WRITE, ATUSB_REQ_TO_DEV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) value, reg, NULL, 0, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) static int atusb_read_reg(struct atusb *atusb, u8 reg)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) u8 *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) u8 value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) buffer = kmalloc(1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) if (!buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) dev_dbg(&usb_dev->dev, "%s: reg = 0x%x\n", __func__, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) ATUSB_REG_READ, ATUSB_REQ_FROM_DEV,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 0, reg, buffer, 1, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) if (ret >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) value = buffer[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) return value;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) static int atusb_write_subreg(struct atusb *atusb, u8 reg, u8 mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) u8 shift, u8 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) u8 orig, tmp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) int ret = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) dev_dbg(&usb_dev->dev, "%s: 0x%02x <- 0x%02x\n", __func__, reg, value);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) orig = atusb_read_reg(atusb, reg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) /* Write the value only into that part of the register which is allowed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) * by the mask. All other bits stay as before.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) tmp = orig & ~mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) tmp |= (value << shift) & mask;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) if (tmp != orig)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ret = atusb_write_reg(atusb, reg, tmp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) static int atusb_read_subreg(struct atusb *lp,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) unsigned int addr, unsigned int mask,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) unsigned int shift)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) rc = atusb_read_reg(lp, addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) rc = (rc & mask) >> shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) static int atusb_get_and_clear_error(struct atusb *atusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) int err = atusb->err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) atusb->err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) /* ----- skb allocation ---------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) #define MAX_PSDU 127
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) #define MAX_RX_XFER (1 + MAX_PSDU + 2 + 1) /* PHR+PSDU+CRC+LQI */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) #define SKB_ATUSB(skb) (*(struct atusb **)(skb)->cb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static void atusb_in(struct urb *urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) static int atusb_submit_rx_urb(struct atusb *atusb, struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) struct sk_buff *skb = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (!skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) skb = alloc_skb(MAX_RX_XFER, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) if (!skb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) dev_warn_ratelimited(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) "atusb_in: can't allocate skb\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) skb_put(skb, MAX_RX_XFER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) SKB_ATUSB(skb) = atusb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) usb_fill_bulk_urb(urb, usb_dev, usb_rcvbulkpipe(usb_dev, 1),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) skb->data, MAX_RX_XFER, atusb_in, skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) usb_anchor_urb(urb, &atusb->rx_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) ret = usb_submit_urb(urb, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) usb_unanchor_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) urb->context = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) static void atusb_work_urbs(struct work_struct *work)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) struct atusb *atusb =
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) container_of(to_delayed_work(work), struct atusb, work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) if (atusb->shutdown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) do {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) urb = usb_get_from_anchor(&atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) ret = atusb_submit_rx_urb(atusb, urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) } while (!ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) usb_anchor_urb(urb, &atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) dev_warn_ratelimited(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) "atusb_in: can't allocate/submit URB (%d)\n", ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) schedule_delayed_work(&atusb->work,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) msecs_to_jiffies(ATUSB_ALLOC_DELAY_MS) + 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) /* ----- Asynchronous USB -------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) static void atusb_tx_done(struct atusb *atusb, u8 seq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) u8 expect = atusb->tx_ack_seq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) dev_dbg(&usb_dev->dev, "%s (0x%02x/0x%02x)\n", __func__, seq, expect);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) if (seq == expect) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) /* TODO check for ifs handling in firmware */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) ieee802154_xmit_complete(atusb->hw, atusb->tx_skb, false);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) /* TODO I experience this case when atusb has a tx complete
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) * irq before probing, we should fix the firmware it's an
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) * unlikely case now that seq == expect is then true, but can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) * happen and fail with a tx_skb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) ieee802154_wake_queue(atusb->hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) if (atusb->tx_skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) dev_kfree_skb_irq(atusb->tx_skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) static void atusb_in_good(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) struct usb_device *usb_dev = urb->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) struct sk_buff *skb = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) struct atusb *atusb = SKB_ATUSB(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) u8 len, lqi;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (!urb->actual_length) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) dev_dbg(&usb_dev->dev, "atusb_in: zero-sized URB ?\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) len = *skb->data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (urb->actual_length == 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) atusb_tx_done(atusb, len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) if (len + 1 > urb->actual_length - 1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) dev_dbg(&usb_dev->dev, "atusb_in: frame len %d+1 > URB %u-1\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) len, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (!ieee802154_is_valid_psdu_len(len)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) dev_dbg(&usb_dev->dev, "atusb_in: frame corrupted\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) lqi = skb->data[len + 1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) dev_dbg(&usb_dev->dev, "atusb_in: rx len %d lqi 0x%02x\n", len, lqi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) skb_pull(skb, 1); /* remove PHR */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) skb_trim(skb, len); /* get payload only */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316) ieee802154_rx_irqsafe(atusb->hw, skb, lqi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) urb->context = NULL; /* skb is gone */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) static void atusb_in(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) struct usb_device *usb_dev = urb->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) struct sk_buff *skb = urb->context;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) struct atusb *atusb = SKB_ATUSB(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) dev_dbg(&usb_dev->dev, "%s: status %d len %d\n", __func__,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) urb->status, urb->actual_length);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) if (urb->status) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) if (urb->status == -ENOENT) { /* being killed */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) kfree_skb(skb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) urb->context = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) return;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) dev_dbg(&usb_dev->dev, "%s: URB error %d\n", __func__, urb->status);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) atusb_in_good(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) usb_anchor_urb(urb, &atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) if (!atusb->shutdown)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) schedule_delayed_work(&atusb->work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) /* ----- URB allocation/deallocation --------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) static void atusb_free_urbs(struct atusb *atusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) while (1) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) urb = usb_get_from_anchor(&atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (!urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) kfree_skb(urb->context);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359) static int atusb_alloc_urbs(struct atusb *atusb, int n)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) struct urb *urb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) while (n) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) if (!urb) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) atusb_free_urbs(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) usb_anchor_urb(urb, &atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) usb_free_urb(urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) n--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) /* ----- IEEE 802.15.4 interface operations -------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) static void atusb_xmit_complete(struct urb *urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) dev_dbg(&urb->dev->dev, "atusb_xmit urb completed");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) static int atusb_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) dev_dbg(&usb_dev->dev, "%s (%d)\n", __func__, skb->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) atusb->tx_skb = skb;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) atusb->tx_ack_seq++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) atusb->tx_dr.wIndex = cpu_to_le16(atusb->tx_ack_seq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) atusb->tx_dr.wLength = cpu_to_le16(skb->len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) usb_fill_control_urb(atusb->tx_urb, usb_dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) usb_sndctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) (unsigned char *)&atusb->tx_dr, skb->data,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) skb->len, atusb_xmit_complete, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) ret = usb_submit_urb(atusb->tx_urb, GFP_ATOMIC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) dev_dbg(&usb_dev->dev, "%s done (%d)\n", __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) static int atusb_ed(struct ieee802154_hw *hw, u8 *level)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) WARN_ON(!level);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) *level = 0xbe;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) static int atusb_set_hw_addr_filt(struct ieee802154_hw *hw,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) struct ieee802154_hw_addr_filt *filt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) unsigned long changed)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) struct device *dev = &atusb->usb_dev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) if (changed & IEEE802154_AFILT_SADDR_CHANGED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) u16 addr = le16_to_cpu(filt->short_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) dev_vdbg(dev, "%s called for saddr\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) atusb_write_reg(atusb, RG_SHORT_ADDR_0, addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423) atusb_write_reg(atusb, RG_SHORT_ADDR_1, addr >> 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) if (changed & IEEE802154_AFILT_PANID_CHANGED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427) u16 pan = le16_to_cpu(filt->pan_id);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429) dev_vdbg(dev, "%s called for pan id\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) atusb_write_reg(atusb, RG_PAN_ID_0, pan);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) atusb_write_reg(atusb, RG_PAN_ID_1, pan >> 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) if (changed & IEEE802154_AFILT_IEEEADDR_CHANGED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) u8 i, addr[IEEE802154_EXTENDED_ADDR_LEN];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) memcpy(addr, &filt->ieee_addr, IEEE802154_EXTENDED_ADDR_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438) dev_vdbg(dev, "%s called for IEEE addr\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) for (i = 0; i < 8; i++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) atusb_write_reg(atusb, RG_IEEE_ADDR_0 + i, addr[i]);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) if (changed & IEEE802154_AFILT_PANC_CHANGED) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) dev_vdbg(dev, "%s called for panc change\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) if (filt->pan_coord)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446) atusb_write_subreg(atusb, SR_AACK_I_AM_COORD, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) atusb_write_subreg(atusb, SR_AACK_I_AM_COORD, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) return atusb_get_and_clear_error(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) static int atusb_start(struct ieee802154_hw *hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) dev_dbg(&usb_dev->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) schedule_delayed_work(&atusb->work, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) atusb_command(atusb, ATUSB_RX_MODE, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) ret = atusb_get_and_clear_error(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 465) usb_kill_anchored_urbs(&atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 466) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 467) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 468)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 469) static void atusb_stop(struct ieee802154_hw *hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 470) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 471) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 472) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 473)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 474) dev_dbg(&usb_dev->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 475) usb_kill_anchored_urbs(&atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 476) atusb_command(atusb, ATUSB_RX_MODE, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 477) atusb_get_and_clear_error(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 478) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 479)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 480) #define ATUSB_MAX_TX_POWERS 0xF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 481) static const s32 atusb_powers[ATUSB_MAX_TX_POWERS + 1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 482) 300, 280, 230, 180, 130, 70, 0, -100, -200, -300, -400, -500, -700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 483) -900, -1200, -1700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 484) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 485)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 486) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 487) atusb_txpower(struct ieee802154_hw *hw, s32 mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 488) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 489) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 490)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 491) if (atusb->data)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 492) return atusb->data->set_txpower(hw, mbm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 493) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 494) return -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 495) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 496)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 497) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 498) atusb_set_txpower(struct ieee802154_hw *hw, s32 mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 499) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 500) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 501) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 502)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 503) for (i = 0; i < hw->phy->supported.tx_powers_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 504) if (hw->phy->supported.tx_powers[i] == mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 505) return atusb_write_subreg(atusb, SR_TX_PWR_23X, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 506) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 507)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 508) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 509) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 510)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 511) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 512) hulusb_set_txpower(struct ieee802154_hw *hw, s32 mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 513) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 514) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 515)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 516) for (i = 0; i < hw->phy->supported.tx_powers_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 517) if (hw->phy->supported.tx_powers[i] == mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 518) return atusb_write_subreg(hw->priv, SR_TX_PWR_212, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 519) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 520)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 521) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 522) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 523)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 524) #define ATUSB_MAX_ED_LEVELS 0xF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 525) static const s32 atusb_ed_levels[ATUSB_MAX_ED_LEVELS + 1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 526) -9100, -8900, -8700, -8500, -8300, -8100, -7900, -7700, -7500, -7300,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 527) -7100, -6900, -6700, -6500, -6300, -6100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 528) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 529)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 530) #define AT86RF212_MAX_TX_POWERS 0x1F
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 531) static const s32 at86rf212_powers[AT86RF212_MAX_TX_POWERS + 1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 532) 500, 400, 300, 200, 100, 0, -100, -200, -300, -400, -500, -600, -700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 533) -800, -900, -1000, -1100, -1200, -1300, -1400, -1500, -1600, -1700,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 534) -1800, -1900, -2000, -2100, -2200, -2300, -2400, -2500, -2600,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 535) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 536)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 537) #define AT86RF2XX_MAX_ED_LEVELS 0xF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 538) static const s32 at86rf212_ed_levels_100[AT86RF2XX_MAX_ED_LEVELS + 1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 539) -10000, -9800, -9600, -9400, -9200, -9000, -8800, -8600, -8400, -8200,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 540) -8000, -7800, -7600, -7400, -7200, -7000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 541) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 542)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 543) static const s32 at86rf212_ed_levels_98[AT86RF2XX_MAX_ED_LEVELS + 1] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 544) -9800, -9600, -9400, -9200, -9000, -8800, -8600, -8400, -8200, -8000,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 545) -7800, -7600, -7400, -7200, -7000, -6800,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 546) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 547)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 548) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 549) atusb_set_cca_mode(struct ieee802154_hw *hw, const struct wpan_phy_cca *cca)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 550) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 551) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 552) u8 val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 553)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 554) /* mapping 802.15.4 to driver spec */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 555) switch (cca->mode) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 556) case NL802154_CCA_ENERGY:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 557) val = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 558) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 559) case NL802154_CCA_CARRIER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 560) val = 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 561) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 562) case NL802154_CCA_ENERGY_CARRIER:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 563) switch (cca->opt) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 564) case NL802154_CCA_OPT_ENERGY_CARRIER_AND:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 565) val = 3;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 566) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 567) case NL802154_CCA_OPT_ENERGY_CARRIER_OR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 568) val = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 569) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 570) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 571) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 572) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 573) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 574) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 575) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 576) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 577)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 578) return atusb_write_subreg(atusb, SR_CCA_MODE, val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 579) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 580)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 581) static int hulusb_set_cca_ed_level(struct atusb *lp, int rssi_base_val)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 582) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 583) unsigned int cca_ed_thres;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 584)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 585) cca_ed_thres = atusb_read_subreg(lp, SR_CCA_ED_THRES);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 586)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 587) switch (rssi_base_val) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 588) case -98:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 589) lp->hw->phy->supported.cca_ed_levels = at86rf212_ed_levels_98;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 590) lp->hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(at86rf212_ed_levels_98);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 591) lp->hw->phy->cca_ed_level = at86rf212_ed_levels_98[cca_ed_thres];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 592) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 593) case -100:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 594) lp->hw->phy->supported.cca_ed_levels = at86rf212_ed_levels_100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 595) lp->hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(at86rf212_ed_levels_100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 596) lp->hw->phy->cca_ed_level = at86rf212_ed_levels_100[cca_ed_thres];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 597) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 598) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 599) WARN_ON(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 600) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 601)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 602) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 603) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 604)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 605) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 606) atusb_set_cca_ed_level(struct ieee802154_hw *hw, s32 mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 607) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 608) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 609) u32 i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 610)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 611) for (i = 0; i < hw->phy->supported.cca_ed_levels_size; i++) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 612) if (hw->phy->supported.cca_ed_levels[i] == mbm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 613) return atusb_write_subreg(atusb, SR_CCA_ED_THRES, i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 614) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 615)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 616) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 617) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 618)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 619) static int atusb_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 620) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 621) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 622) int ret = -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 623)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 624) if (atusb->data) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 625) ret = atusb->data->set_channel(hw, page, channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 626) /* @@@ ugly synchronization */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 627) msleep(atusb->data->t_channel_switch);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 628) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 629)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 630) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 631) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 632)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 633) static int atusb_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 634) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 635) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 636) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 637)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 638) ret = atusb_write_subreg(atusb, SR_CHANNEL, channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 639) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 640) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 641) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 642) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 643)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 644) static int hulusb_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 645) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 646) int rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 647) int rssi_base_val;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 648)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 649) struct atusb *lp = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 650)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 651) if (channel == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 652) rc = atusb_write_subreg(lp, SR_SUB_MODE, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 653) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 654) rc = atusb_write_subreg(lp, SR_SUB_MODE, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 655) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 656) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 657)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 658) if (page == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 659) rc = atusb_write_subreg(lp, SR_BPSK_QPSK, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 660) rssi_base_val = -100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 661) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 662) rc = atusb_write_subreg(lp, SR_BPSK_QPSK, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 663) rssi_base_val = -98;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 664) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 665) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 666) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 667)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 668) rc = hulusb_set_cca_ed_level(lp, rssi_base_val);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 669) if (rc < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 670) return rc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 671)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 672) /* This sets the symbol_duration according frequency on the 212.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 673) * TODO move this handling while set channel and page in cfg802154.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 674) * We can do that, this timings are according 802.15.4 standard.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 675) * If we do that in cfg802154, this is a more generic calculation.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 676) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 677) * This should also protected from ifs_timer. Means cancel timer and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 678) * init with a new value. For now, this is okay.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 679) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 680) if (channel == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 681) if (page == 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 682) /* SUB:0 and BPSK:0 -> BPSK-20 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 683) lp->hw->phy->symbol_duration = 50;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 684) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 685) /* SUB:1 and BPSK:0 -> BPSK-40 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 686) lp->hw->phy->symbol_duration = 25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 687) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 688) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 689) if (page == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 690) /* SUB:0 and BPSK:1 -> OQPSK-100/200/400 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 691) lp->hw->phy->symbol_duration = 40;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 692) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 693) /* SUB:1 and BPSK:1 -> OQPSK-250/500/1000 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 694) lp->hw->phy->symbol_duration = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 695) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 696)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 697) lp->hw->phy->lifs_period = IEEE802154_LIFS_PERIOD *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 698) lp->hw->phy->symbol_duration;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 699) lp->hw->phy->sifs_period = IEEE802154_SIFS_PERIOD *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 700) lp->hw->phy->symbol_duration;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 701)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 702) return atusb_write_subreg(lp, SR_CHANNEL, channel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 703) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 704)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 705) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 706) atusb_set_csma_params(struct ieee802154_hw *hw, u8 min_be, u8 max_be, u8 retries)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 707) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 708) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 709) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 710)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 711) ret = atusb_write_subreg(atusb, SR_MIN_BE, min_be);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 712) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 713) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 714)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 715) ret = atusb_write_subreg(atusb, SR_MAX_BE, max_be);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 716) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 717) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 718)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 719) return atusb_write_subreg(atusb, SR_MAX_CSMA_RETRIES, retries);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 720) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 721)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 722) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 723) hulusb_set_lbt(struct ieee802154_hw *hw, bool on)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 724) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 725) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 726)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 727) return atusb_write_subreg(atusb, SR_CSMA_LBT_MODE, on);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 728) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 729)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 730) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 731) atusb_set_frame_retries(struct ieee802154_hw *hw, s8 retries)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 732) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 733) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 734)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 735) return atusb_write_subreg(atusb, SR_MAX_FRAME_RETRIES, retries);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 736) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 737)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 738) static int
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 739) atusb_set_promiscuous_mode(struct ieee802154_hw *hw, const bool on)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 740) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 741) struct atusb *atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 742) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 743)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 744) if (on) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 745) ret = atusb_write_subreg(atusb, SR_AACK_DIS_ACK, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 746) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 747) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 748)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 749) ret = atusb_write_subreg(atusb, SR_AACK_PROM_MODE, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 750) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 751) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 752) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 753) ret = atusb_write_subreg(atusb, SR_AACK_PROM_MODE, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 754) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 755) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 756)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 757) ret = atusb_write_subreg(atusb, SR_AACK_DIS_ACK, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 758) if (ret < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 759) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 760) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 761)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 762) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 763) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 764)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 765) static struct atusb_chip_data atusb_chip_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 766) .t_channel_switch = 1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 767) .rssi_base_val = -91,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 768) .set_txpower = atusb_set_txpower,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 769) .set_channel = atusb_set_channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 770) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 771)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 772) static struct atusb_chip_data hulusb_chip_data = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 773) .t_channel_switch = 11,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 774) .rssi_base_val = -100,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 775) .set_txpower = hulusb_set_txpower,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 776) .set_channel = hulusb_set_channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 777) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 778)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 779) static const struct ieee802154_ops atusb_ops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 780) .owner = THIS_MODULE,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 781) .xmit_async = atusb_xmit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 782) .ed = atusb_ed,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 783) .set_channel = atusb_channel,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 784) .start = atusb_start,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 785) .stop = atusb_stop,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 786) .set_hw_addr_filt = atusb_set_hw_addr_filt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 787) .set_txpower = atusb_txpower,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 788) .set_lbt = hulusb_set_lbt,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 789) .set_cca_mode = atusb_set_cca_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 790) .set_cca_ed_level = atusb_set_cca_ed_level,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 791) .set_csma_params = atusb_set_csma_params,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 792) .set_frame_retries = atusb_set_frame_retries,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 793) .set_promiscuous_mode = atusb_set_promiscuous_mode,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 794) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 795)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 796) /* ----- Firmware and chip version information ----------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 797)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 798) static int atusb_get_and_show_revision(struct atusb *atusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 799) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 800) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 801) char *hw_name;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 802) unsigned char *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 803) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 804)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 805) buffer = kmalloc(3, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 806) if (!buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 807) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 808)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 809) /* Get a couple of the ATMega Firmware values */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 810) ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 811) ATUSB_ID, ATUSB_REQ_FROM_DEV, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 812) buffer, 3, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 813) if (ret >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 814) atusb->fw_ver_maj = buffer[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 815) atusb->fw_ver_min = buffer[1];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 816) atusb->fw_hw_type = buffer[2];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 817)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 818) switch (atusb->fw_hw_type) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 819) case ATUSB_HW_TYPE_100813:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 820) case ATUSB_HW_TYPE_101216:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 821) case ATUSB_HW_TYPE_110131:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 822) hw_name = "ATUSB";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 823) atusb->data = &atusb_chip_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 824) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 825) case ATUSB_HW_TYPE_RZUSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 826) hw_name = "RZUSB";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 827) atusb->data = &atusb_chip_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 828) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 829) case ATUSB_HW_TYPE_HULUSB:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 830) hw_name = "HULUSB";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 831) atusb->data = &hulusb_chip_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 832) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 833) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 834) hw_name = "UNKNOWN";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 835) atusb->err = -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 836) ret = -ENOTSUPP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 837) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 838) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 839)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 840) dev_info(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 841) "Firmware: major: %u, minor: %u, hardware type: %s (%d)\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 842) atusb->fw_ver_maj, atusb->fw_ver_min, hw_name,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 843) atusb->fw_hw_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 844) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 845) if (atusb->fw_ver_maj == 0 && atusb->fw_ver_min < 2) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 846) dev_info(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 847) "Firmware version (%u.%u) predates our first public release.",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 848) atusb->fw_ver_maj, atusb->fw_ver_min);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 849) dev_info(&usb_dev->dev, "Please update to version 0.2 or newer");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 850) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 851)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 852) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 853) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 854) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 855)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 856) static int atusb_get_and_show_build(struct atusb *atusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 857) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 858) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 859) char *build;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 860) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 861)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 862) build = kmalloc(ATUSB_BUILD_SIZE + 1, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 863) if (!build)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 864) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 865)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 866) /* We cannot call atusb_control_msg() here, since this request may read various length data */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 867) ret = usb_control_msg(atusb->usb_dev, usb_rcvctrlpipe(usb_dev, 0), ATUSB_BUILD,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 868) ATUSB_REQ_FROM_DEV, 0, 0, build, ATUSB_BUILD_SIZE, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 869) if (ret >= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 870) build[ret] = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 871) dev_info(&usb_dev->dev, "Firmware: build %s\n", build);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 872) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 873)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 874) kfree(build);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 875) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 876) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 877)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 878) static int atusb_get_and_conf_chip(struct atusb *atusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 879) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 880) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 881) u8 man_id_0, man_id_1, part_num, version_num;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 882) const char *chip;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 883) struct ieee802154_hw *hw = atusb->hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 884)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 885) man_id_0 = atusb_read_reg(atusb, RG_MAN_ID_0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 886) man_id_1 = atusb_read_reg(atusb, RG_MAN_ID_1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 887) part_num = atusb_read_reg(atusb, RG_PART_NUM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 888) version_num = atusb_read_reg(atusb, RG_VERSION_NUM);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 889)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 890) if (atusb->err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 891) return atusb->err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 892)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 893) hw->flags = IEEE802154_HW_TX_OMIT_CKSUM | IEEE802154_HW_AFILT |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 894) IEEE802154_HW_PROMISCUOUS | IEEE802154_HW_CSMA_PARAMS;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 895)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 896) hw->phy->flags = WPAN_PHY_FLAG_TXPOWER | WPAN_PHY_FLAG_CCA_ED_LEVEL |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 897) WPAN_PHY_FLAG_CCA_MODE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 898)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 899) hw->phy->supported.cca_modes = BIT(NL802154_CCA_ENERGY) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 900) BIT(NL802154_CCA_CARRIER) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 901) BIT(NL802154_CCA_ENERGY_CARRIER);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 902) hw->phy->supported.cca_opts = BIT(NL802154_CCA_OPT_ENERGY_CARRIER_AND) |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 903) BIT(NL802154_CCA_OPT_ENERGY_CARRIER_OR);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 904)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 905) hw->phy->cca.mode = NL802154_CCA_ENERGY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 906)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 907) hw->phy->current_page = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 908)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 909) if ((man_id_1 << 8 | man_id_0) != ATUSB_JEDEC_ATMEL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 910) dev_err(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 911) "non-Atmel transceiver xxxx%02x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 912) man_id_1, man_id_0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 913) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 914) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 915)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 916) switch (part_num) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 917) case 2:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 918) chip = "AT86RF230";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 919) atusb->hw->phy->supported.channels[0] = 0x7FFF800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 920) atusb->hw->phy->current_channel = 11; /* reset default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 921) atusb->hw->phy->symbol_duration = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 922) atusb->hw->phy->supported.tx_powers = atusb_powers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 923) atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 924) hw->phy->supported.cca_ed_levels = atusb_ed_levels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 925) hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(atusb_ed_levels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 926) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 927) case 3:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 928) chip = "AT86RF231";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 929) atusb->hw->phy->supported.channels[0] = 0x7FFF800;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 930) atusb->hw->phy->current_channel = 11; /* reset default */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 931) atusb->hw->phy->symbol_duration = 16;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 932) atusb->hw->phy->supported.tx_powers = atusb_powers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 933) atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 934) hw->phy->supported.cca_ed_levels = atusb_ed_levels;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 935) hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(atusb_ed_levels);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 936) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 937) case 7:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 938) chip = "AT86RF212";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 939) atusb->hw->flags |= IEEE802154_HW_LBT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 940) atusb->hw->phy->supported.channels[0] = 0x00007FF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 941) atusb->hw->phy->supported.channels[2] = 0x00007FF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 942) atusb->hw->phy->current_channel = 5;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 943) atusb->hw->phy->symbol_duration = 25;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 944) atusb->hw->phy->supported.lbt = NL802154_SUPPORTED_BOOL_BOTH;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 945) atusb->hw->phy->supported.tx_powers = at86rf212_powers;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 946) atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(at86rf212_powers);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 947) atusb->hw->phy->supported.cca_ed_levels = at86rf212_ed_levels_100;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 948) atusb->hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(at86rf212_ed_levels_100);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 949) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 950) default:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 951) dev_err(&usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 952) "unexpected transceiver, part 0x%02x version 0x%02x\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 953) part_num, version_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 954) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 955) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 956)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 957) hw->phy->transmit_power = hw->phy->supported.tx_powers[0];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 958) hw->phy->cca_ed_level = hw->phy->supported.cca_ed_levels[7];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 959)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 960) dev_info(&usb_dev->dev, "ATUSB: %s version %d\n", chip, version_num);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 961)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 962) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 963)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 964) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 965) atusb->err = -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 966) return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 967) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 968)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 969) static int atusb_set_extended_addr(struct atusb *atusb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 970) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 971) struct usb_device *usb_dev = atusb->usb_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 972) unsigned char *buffer;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 973) __le64 extended_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 974) u64 addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 975) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 976)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 977) /* Firmware versions before 0.3 do not support the EUI64_READ command.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 978) * Just use a random address and be done.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 979) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 980) if (atusb->fw_ver_maj == 0 && atusb->fw_ver_min < 3) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 981) ieee802154_random_extended_addr(&atusb->hw->phy->perm_extended_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 982) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 983) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 984)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 985) buffer = kmalloc(IEEE802154_EXTENDED_ADDR_LEN, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 986) if (!buffer)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 987) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 988)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 989) /* Firmware is new enough so we fetch the address from EEPROM */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 990) ret = atusb_control_msg(atusb, usb_rcvctrlpipe(usb_dev, 0),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 991) ATUSB_EUI64_READ, ATUSB_REQ_FROM_DEV, 0, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 992) buffer, IEEE802154_EXTENDED_ADDR_LEN, 1000);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 993) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 994) dev_err(&usb_dev->dev, "failed to fetch extended address, random address set\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 995) ieee802154_random_extended_addr(&atusb->hw->phy->perm_extended_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 996) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 997) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 998) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 999)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1000) memcpy(&extended_addr, buffer, IEEE802154_EXTENDED_ADDR_LEN);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1001) /* Check if read address is not empty and the unicast bit is set correctly */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1002) if (!ieee802154_is_valid_extended_unicast_addr(extended_addr)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1003) dev_info(&usb_dev->dev, "no permanent extended address found, random address set\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1004) ieee802154_random_extended_addr(&atusb->hw->phy->perm_extended_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1005) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1006) atusb->hw->phy->perm_extended_addr = extended_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1007) addr = swab64((__force u64)atusb->hw->phy->perm_extended_addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1008) dev_info(&usb_dev->dev, "Read permanent extended address %8phC from device\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1009) &addr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1010) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1011)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1012) kfree(buffer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1013) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1014) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1015)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1016) /* ----- Setup ------------------------------------------------------------- */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1017)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1018) static int atusb_probe(struct usb_interface *interface,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1019) const struct usb_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1020) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1021) struct usb_device *usb_dev = interface_to_usbdev(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1022) struct ieee802154_hw *hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1023) struct atusb *atusb = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1024) int ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1025)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1026) hw = ieee802154_alloc_hw(sizeof(struct atusb), &atusb_ops);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1027) if (!hw)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1028) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1029)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1030) atusb = hw->priv;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1031) atusb->hw = hw;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1032) atusb->usb_dev = usb_get_dev(usb_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1033) usb_set_intfdata(interface, atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1034)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1035) atusb->shutdown = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1036) atusb->err = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1037) INIT_DELAYED_WORK(&atusb->work, atusb_work_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1038) init_usb_anchor(&atusb->idle_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1039) init_usb_anchor(&atusb->rx_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1040)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1041) if (atusb_alloc_urbs(atusb, ATUSB_NUM_RX_URBS))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1042) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1043)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1044) atusb->tx_dr.bRequestType = ATUSB_REQ_TO_DEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1045) atusb->tx_dr.bRequest = ATUSB_TX;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1046) atusb->tx_dr.wValue = cpu_to_le16(0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1047)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1048) atusb->tx_urb = usb_alloc_urb(0, GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1049) if (!atusb->tx_urb)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1050) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1051)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1052) hw->parent = &usb_dev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1053)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1054) atusb_command(atusb, ATUSB_RF_RESET, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1055) atusb_get_and_conf_chip(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1056) atusb_get_and_show_revision(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1057) atusb_get_and_show_build(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1058) atusb_set_extended_addr(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1059)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1060) if ((atusb->fw_ver_maj == 0 && atusb->fw_ver_min >= 3) || atusb->fw_ver_maj > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1061) hw->flags |= IEEE802154_HW_FRAME_RETRIES;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1062)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1063) ret = atusb_get_and_clear_error(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1064) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1065) dev_err(&atusb->usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1066) "%s: initialization failed, error = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1067) __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1068) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1069) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1070)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1071) ret = ieee802154_register_hw(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1072) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1073) goto fail;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1074)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1075) /* If we just powered on, we're now in P_ON and need to enter TRX_OFF
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1076) * explicitly. Any resets after that will send us straight to TRX_OFF,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1077) * making the command below redundant.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1078) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1079) atusb_write_reg(atusb, RG_TRX_STATE, STATE_FORCE_TRX_OFF);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1080) msleep(1); /* reset => TRX_OFF, tTR13 = 37 us */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1081)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1082) #if 0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1083) /* Calculating the maximum time available to empty the frame buffer
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1084) * on reception:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1085) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1086) * According to [1], the inter-frame gap is
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1087) * R * 20 * 16 us + 128 us
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1088) * where R is a random number from 0 to 7. Furthermore, we have 20 bit
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1089) * times (80 us at 250 kbps) of SHR of the next frame before the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1090) * transceiver begins storing data in the frame buffer.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1091) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1092) * This yields a minimum time of 208 us between the last data of a
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1093) * frame and the first data of the next frame. This time is further
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1094) * reduced by interrupt latency in the atusb firmware.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1095) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1096) * atusb currently needs about 500 us to retrieve a maximum-sized
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1097) * frame. We therefore have to allow reception of a new frame to begin
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1098) * while we retrieve the previous frame.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1099) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1100) * [1] "JN-AN-1035 Calculating data rates in an IEEE 802.15.4-based
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1101) * network", Jennic 2006.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1102) * http://www.jennic.com/download_file.php?supportFile=JN-AN-1035%20Calculating%20802-15-4%20Data%20Rates-1v0.pdf
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1103) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1105) atusb_write_subreg(atusb, SR_RX_SAFE_MODE, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1106) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1107) atusb_write_reg(atusb, RG_IRQ_MASK, 0xff);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1109) ret = atusb_get_and_clear_error(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1110) if (!ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1111) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1113) dev_err(&atusb->usb_dev->dev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1114) "%s: setup failed, error = %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1115) __func__, ret);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1116)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1117) ieee802154_unregister_hw(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1118) fail:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1119) atusb_free_urbs(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1120) usb_kill_urb(atusb->tx_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1121) usb_free_urb(atusb->tx_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1122) usb_put_dev(usb_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1123) ieee802154_free_hw(hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1124) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1125) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1126)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1127) static void atusb_disconnect(struct usb_interface *interface)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1128) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1129) struct atusb *atusb = usb_get_intfdata(interface);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1131) dev_dbg(&atusb->usb_dev->dev, "%s\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1133) atusb->shutdown = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1134) cancel_delayed_work_sync(&atusb->work);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1135)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1136) usb_kill_anchored_urbs(&atusb->rx_urbs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1137) atusb_free_urbs(atusb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1138) usb_kill_urb(atusb->tx_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1139) usb_free_urb(atusb->tx_urb);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1141) ieee802154_unregister_hw(atusb->hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1143) usb_put_dev(atusb->usb_dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1144)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1145) ieee802154_free_hw(atusb->hw);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1146)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1147) usb_set_intfdata(interface, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1149) pr_debug("%s done\n", __func__);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1150) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1152) /* The devices we work with */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1153) static const struct usb_device_id atusb_device_table[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1154) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1155) .match_flags = USB_DEVICE_ID_MATCH_DEVICE |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1156) USB_DEVICE_ID_MATCH_INT_INFO,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1157) .idVendor = ATUSB_VENDOR_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1158) .idProduct = ATUSB_PRODUCT_ID,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1159) .bInterfaceClass = USB_CLASS_VENDOR_SPEC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1160) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1161) /* end with null element */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1162) {}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1163) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1164) MODULE_DEVICE_TABLE(usb, atusb_device_table);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1165)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1166) static struct usb_driver atusb_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1167) .name = "atusb",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1168) .probe = atusb_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1169) .disconnect = atusb_disconnect,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1170) .id_table = atusb_device_table,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1171) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1172) module_usb_driver(atusb_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1174) MODULE_AUTHOR("Alexander Aring <alex.aring@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1175) MODULE_AUTHOR("Richard Sharpe <realrichardsharpe@gmail.com>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1176) MODULE_AUTHOR("Stefan Schmidt <stefan@datenfreihafen.org>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1177) MODULE_AUTHOR("Werner Almesberger <werner@almesberger.net>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1178) MODULE_AUTHOR("Josef Filzmaier <j.filzmaier@gmx.at>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1179) MODULE_DESCRIPTION("ATUSB IEEE 802.15.4 Driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1180) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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