ieee802154: atusb: Driver for Busware HUL dongle
Busware manufactured an USB dongle that is quite similar to the atben and rzusb USB dongles. that are already supported. This patch aims to support the Busware HUL dongle (called hulusb) alongside atusb and rzusb. hulusb is using the at86rf212 transceiver which is specifically designed to support the 700/800/900 MHz wave band. The source code is heavily inspired by the existing atusb and at86rf2xx drivers. Signed-off-by: Josef Filzmaier <j.filzmaier@gmx.at> Signed-off-by: Stefan Schmidt <stefan@osg.samsung.com>
This commit is contained in:
Josef Filzmaier
Stefan Schmidt
parent
3e4962667e
commit
d5dd29e4da
@ -21,6 +21,9 @@
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*
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* USB initialization is
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* Copyright (c) 2013 Alexander Aring <alex.aring@gmail.com>
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*
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* Busware HUL support is
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* Copyright (c) 2017 Josef Filzmaier <j.filzmaier@gmx.at>
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*/
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#include <linux/kernel.h>
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@ -42,9 +45,12 @@
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#define ATUSB_ALLOC_DELAY_MS 100 /* delay after failed allocation */
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#define ATUSB_TX_TIMEOUT_MS 200 /* on the air timeout */
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struct atusb_chip_data;
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struct atusb {
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struct ieee802154_hw *hw;
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struct usb_device *usb_dev;
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struct atusb_chip_data *data;
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int shutdown; /* non-zero if shutting down */
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int err; /* set by first error */
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@ -65,6 +71,14 @@ struct atusb {
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unsigned char fw_hw_type; /* Firmware hardware type */
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};
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struct atusb_chip_data {
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u16 t_channel_switch;
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int rssi_base_val;
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int (*set_channel)(struct ieee802154_hw*, u8, u8);
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int (*set_txpower)(struct ieee802154_hw*, s32);
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};
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/* ----- USB commands without data ----------------------------------------- */
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/* To reduce the number of error checks in the code, we record the first error
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@ -163,6 +177,18 @@ static int atusb_write_subreg(struct atusb *atusb, uint8_t reg, uint8_t mask,
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return ret;
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}
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static int atusb_read_subreg(struct atusb *lp,
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unsigned int addr, unsigned int mask,
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unsigned int shift)
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{
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int rc;
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rc = atusb_read_reg(lp, addr);
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rc = (rc & mask) >> shift;
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return rc;
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}
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static int atusb_get_and_clear_error(struct atusb *atusb)
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{
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int err = atusb->err;
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@ -379,18 +405,6 @@ static int atusb_xmit(struct ieee802154_hw *hw, struct sk_buff *skb)
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return ret;
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}
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static int atusb_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
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{
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struct atusb *atusb = hw->priv;
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int ret;
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ret = atusb_write_subreg(atusb, SR_CHANNEL, channel);
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if (ret < 0)
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return ret;
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msleep(1); /* @@@ ugly synchronization */
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return 0;
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}
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static int atusb_ed(struct ieee802154_hw *hw, u8 *level)
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{
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BUG_ON(!level);
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@ -474,6 +488,17 @@ static const s32 atusb_powers[ATUSB_MAX_TX_POWERS + 1] = {
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-900, -1200, -1700,
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};
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static int
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atusb_txpower(struct ieee802154_hw *hw, s32 mbm)
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{
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struct atusb *atusb = hw->priv;
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if (atusb->data)
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return atusb->data->set_txpower(hw, mbm);
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else
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return -ENOTSUPP;
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}
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static int
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atusb_set_txpower(struct ieee802154_hw *hw, s32 mbm)
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{
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@ -488,12 +513,43 @@ atusb_set_txpower(struct ieee802154_hw *hw, s32 mbm)
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return -EINVAL;
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}
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static int
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hulusb_set_txpower(struct ieee802154_hw *hw, s32 mbm)
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{
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u32 i;
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for (i = 0; i < hw->phy->supported.tx_powers_size; i++) {
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if (hw->phy->supported.tx_powers[i] == mbm)
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return atusb_write_subreg(hw->priv, SR_TX_PWR_212, i);
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}
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return -EINVAL;
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}
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#define ATUSB_MAX_ED_LEVELS 0xF
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static const s32 atusb_ed_levels[ATUSB_MAX_ED_LEVELS + 1] = {
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-9100, -8900, -8700, -8500, -8300, -8100, -7900, -7700, -7500, -7300,
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-7100, -6900, -6700, -6500, -6300, -6100,
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};
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#define AT86RF212_MAX_TX_POWERS 0x1F
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static const s32 at86rf212_powers[AT86RF212_MAX_TX_POWERS + 1] = {
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500, 400, 300, 200, 100, 0, -100, -200, -300, -400, -500, -600, -700,
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-800, -900, -1000, -1100, -1200, -1300, -1400, -1500, -1600, -1700,
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-1800, -1900, -2000, -2100, -2200, -2300, -2400, -2500, -2600,
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};
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#define AT86RF2XX_MAX_ED_LEVELS 0xF
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static const s32 at86rf212_ed_levels_100[AT86RF2XX_MAX_ED_LEVELS + 1] = {
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-10000, -9800, -9600, -9400, -9200, -9000, -8800, -8600, -8400, -8200,
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-8000, -7800, -7600, -7400, -7200, -7000,
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};
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static const s32 at86rf212_ed_levels_98[AT86RF2XX_MAX_ED_LEVELS + 1] = {
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-9800, -9600, -9400, -9200, -9000, -8800, -8600, -8400, -8200, -8000,
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-7800, -7600, -7400, -7200, -7000, -6800,
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};
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static int
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atusb_set_cca_mode(struct ieee802154_hw *hw, const struct wpan_phy_cca *cca)
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{
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@ -527,6 +583,30 @@ atusb_set_cca_mode(struct ieee802154_hw *hw, const struct wpan_phy_cca *cca)
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return atusb_write_subreg(atusb, SR_CCA_MODE, val);
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}
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static int hulusb_set_cca_ed_level(struct atusb *lp, int rssi_base_val)
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{
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unsigned int cca_ed_thres;
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cca_ed_thres = atusb_read_subreg(lp, SR_CCA_ED_THRES);
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switch (rssi_base_val) {
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case -98:
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lp->hw->phy->supported.cca_ed_levels = at86rf212_ed_levels_98;
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lp->hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(at86rf212_ed_levels_98);
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lp->hw->phy->cca_ed_level = at86rf212_ed_levels_98[cca_ed_thres];
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break;
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case -100:
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lp->hw->phy->supported.cca_ed_levels = at86rf212_ed_levels_100;
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lp->hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(at86rf212_ed_levels_100);
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lp->hw->phy->cca_ed_level = at86rf212_ed_levels_100[cca_ed_thres];
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break;
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default:
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WARN_ON(1);
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}
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return 0;
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}
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static int
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atusb_set_cca_ed_level(struct ieee802154_hw *hw, s32 mbm)
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{
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@ -541,6 +621,92 @@ atusb_set_cca_ed_level(struct ieee802154_hw *hw, s32 mbm)
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return -EINVAL;
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}
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static int atusb_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
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{
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struct atusb *atusb = hw->priv;
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int ret = -ENOTSUPP;
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if (atusb->data) {
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ret = atusb->data->set_channel(hw, page, channel);
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/* @@@ ugly synchronization */
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msleep(atusb->data->t_channel_switch);
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}
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return ret;
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}
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static int atusb_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
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{
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struct atusb *atusb = hw->priv;
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int ret;
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ret = atusb_write_subreg(atusb, SR_CHANNEL, channel);
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if (ret < 0)
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return ret;
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return 0;
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}
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static int hulusb_set_channel(struct ieee802154_hw *hw, u8 page, u8 channel)
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{
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int rc;
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int rssi_base_val;
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struct atusb *lp = hw->priv;
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if (channel == 0)
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rc = atusb_write_subreg(lp, SR_SUB_MODE, 0);
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else
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rc = atusb_write_subreg(lp, SR_SUB_MODE, 1);
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if (rc < 0)
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return rc;
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if (page == 0) {
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rc = atusb_write_subreg(lp, SR_BPSK_QPSK, 0);
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rssi_base_val = -100;
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} else {
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rc = atusb_write_subreg(lp, SR_BPSK_QPSK, 1);
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rssi_base_val = -98;
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}
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if (rc < 0)
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return rc;
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rc = hulusb_set_cca_ed_level(lp, rssi_base_val);
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if (rc < 0)
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return rc;
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/* This sets the symbol_duration according frequency on the 212.
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* TODO move this handling while set channel and page in cfg802154.
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* We can do that, this timings are according 802.15.4 standard.
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* If we do that in cfg802154, this is a more generic calculation.
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*
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* This should also protected from ifs_timer. Means cancel timer and
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* init with a new value. For now, this is okay.
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*/
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if (channel == 0) {
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if (page == 0) {
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/* SUB:0 and BPSK:0 -> BPSK-20 */
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lp->hw->phy->symbol_duration = 50;
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} else {
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/* SUB:1 and BPSK:0 -> BPSK-40 */
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lp->hw->phy->symbol_duration = 25;
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}
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} else {
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if (page == 0)
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/* SUB:0 and BPSK:1 -> OQPSK-100/200/400 */
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lp->hw->phy->symbol_duration = 40;
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else
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/* SUB:1 and BPSK:1 -> OQPSK-250/500/1000 */
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lp->hw->phy->symbol_duration = 16;
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}
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lp->hw->phy->lifs_period = IEEE802154_LIFS_PERIOD *
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lp->hw->phy->symbol_duration;
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lp->hw->phy->sifs_period = IEEE802154_SIFS_PERIOD *
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lp->hw->phy->symbol_duration;
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return atusb_write_subreg(lp, SR_CHANNEL, channel);
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}
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static int
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atusb_set_csma_params(struct ieee802154_hw *hw, u8 min_be, u8 max_be, u8 retries)
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{
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@ -558,6 +724,14 @@ atusb_set_csma_params(struct ieee802154_hw *hw, u8 min_be, u8 max_be, u8 retries
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return atusb_write_subreg(atusb, SR_MAX_CSMA_RETRIES, retries);
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}
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static int
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hulusb_set_lbt(struct ieee802154_hw *hw, bool on)
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{
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struct atusb *atusb = hw->priv;
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return atusb_write_subreg(atusb, SR_CSMA_LBT_MODE, on);
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}
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static int
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atusb_set_frame_retries(struct ieee802154_hw *hw, s8 retries)
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{
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@ -593,6 +767,20 @@ atusb_set_promiscuous_mode(struct ieee802154_hw *hw, const bool on)
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return 0;
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}
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struct atusb_chip_data atusb_chip_data = {
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.t_channel_switch = 1,
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.rssi_base_val = -91,
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.set_txpower = atusb_set_txpower,
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.set_channel = atusb_set_channel,
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};
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struct atusb_chip_data hulusb_chip_data = {
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.t_channel_switch = 11,
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.rssi_base_val = -100,
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.set_txpower = hulusb_set_txpower,
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.set_channel = hulusb_set_channel,
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};
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static const struct ieee802154_ops atusb_ops = {
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.owner = THIS_MODULE,
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.xmit_async = atusb_xmit,
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@ -601,7 +789,8 @@ static const struct ieee802154_ops atusb_ops = {
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.start = atusb_start,
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.stop = atusb_stop,
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.set_hw_addr_filt = atusb_set_hw_addr_filt,
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.set_txpower = atusb_set_txpower,
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.set_txpower = atusb_txpower,
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.set_lbt = hulusb_set_lbt,
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.set_cca_mode = atusb_set_cca_mode,
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.set_cca_ed_level = atusb_set_cca_ed_level,
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.set_csma_params = atusb_set_csma_params,
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@ -614,6 +803,7 @@ static const struct ieee802154_ops atusb_ops = {
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static int atusb_get_and_show_revision(struct atusb *atusb)
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{
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struct usb_device *usb_dev = atusb->usb_dev;
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char *hw_name;
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unsigned char *buffer;
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int ret;
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@ -630,9 +820,31 @@ static int atusb_get_and_show_revision(struct atusb *atusb)
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atusb->fw_ver_min = buffer[1];
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atusb->fw_hw_type = buffer[2];
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switch (atusb->fw_hw_type) {
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case ATUSB_HW_TYPE_100813:
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case ATUSB_HW_TYPE_101216:
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case ATUSB_HW_TYPE_110131:
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hw_name = "ATUSB";
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atusb->data = &atusb_chip_data;
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break;
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case ATUSB_HW_TYPE_RZUSB:
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hw_name = "RZUSB";
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atusb->data = &atusb_chip_data;
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break;
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case ATUSB_HW_TYPE_HULUSB:
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hw_name = "HULUSB";
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atusb->data = &hulusb_chip_data;
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break;
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default:
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hw_name = "UNKNOWN";
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atusb->err = -ENOTSUPP;
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ret = -ENOTSUPP;
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break;
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}
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dev_info(&usb_dev->dev,
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"Firmware: major: %u, minor: %u, hardware type: %u\n",
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atusb->fw_ver_maj, atusb->fw_ver_min, atusb->fw_hw_type);
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"Firmware: major: %u, minor: %u, hardware type: %s (%d)\n",
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atusb->fw_ver_maj, atusb->fw_ver_min, hw_name, atusb->fw_hw_type);
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}
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if (atusb->fw_ver_maj == 0 && atusb->fw_ver_min < 2) {
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dev_info(&usb_dev->dev,
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@ -667,11 +879,12 @@ static int atusb_get_and_show_build(struct atusb *atusb)
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return ret;
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}
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static int atusb_get_and_show_chip(struct atusb *atusb)
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static int atusb_get_and_conf_chip(struct atusb *atusb)
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{
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struct usb_device *usb_dev = atusb->usb_dev;
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uint8_t man_id_0, man_id_1, part_num, version_num;
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const char *chip;
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struct ieee802154_hw *hw = atusb->hw;
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man_id_0 = atusb_read_reg(atusb, RG_MAN_ID_0);
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man_id_1 = atusb_read_reg(atusb, RG_MAN_ID_1);
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@ -681,6 +894,22 @@ static int atusb_get_and_show_chip(struct atusb *atusb)
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if (atusb->err)
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return atusb->err;
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hw->flags = IEEE802154_HW_TX_OMIT_CKSUM | IEEE802154_HW_AFILT |
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IEEE802154_HW_PROMISCUOUS | IEEE802154_HW_CSMA_PARAMS;
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hw->phy->flags = WPAN_PHY_FLAG_TXPOWER | WPAN_PHY_FLAG_CCA_ED_LEVEL |
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WPAN_PHY_FLAG_CCA_MODE;
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hw->phy->supported.cca_modes = BIT(NL802154_CCA_ENERGY) |
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BIT(NL802154_CCA_CARRIER) |
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BIT(NL802154_CCA_ENERGY_CARRIER);
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hw->phy->supported.cca_opts = BIT(NL802154_CCA_OPT_ENERGY_CARRIER_AND) |
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BIT(NL802154_CCA_OPT_ENERGY_CARRIER_OR);
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hw->phy->cca.mode = NL802154_CCA_ENERGY;
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hw->phy->current_page = 0;
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if ((man_id_1 << 8 | man_id_0) != ATUSB_JEDEC_ATMEL) {
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dev_err(&usb_dev->dev,
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"non-Atmel transceiver xxxx%02x%02x\n",
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@ -691,9 +920,36 @@ static int atusb_get_and_show_chip(struct atusb *atusb)
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switch (part_num) {
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case 2:
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chip = "AT86RF230";
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atusb->hw->phy->supported.channels[0] = 0x7FFF800;
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atusb->hw->phy->current_channel = 11; /* reset default */
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atusb->hw->phy->symbol_duration = 16;
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atusb->hw->phy->supported.tx_powers = atusb_powers;
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atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
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hw->phy->supported.cca_ed_levels = atusb_ed_levels;
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hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(atusb_ed_levels);
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break;
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case 3:
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chip = "AT86RF231";
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atusb->hw->phy->supported.channels[0] = 0x7FFF800;
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atusb->hw->phy->current_channel = 11; /* reset default */
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atusb->hw->phy->symbol_duration = 16;
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atusb->hw->phy->supported.tx_powers = atusb_powers;
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atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
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hw->phy->supported.cca_ed_levels = atusb_ed_levels;
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hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(atusb_ed_levels);
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break;
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case 7:
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chip = "AT86RF212";
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atusb->hw->flags |= IEEE802154_HW_LBT;
|
||||
atusb->hw->phy->supported.channels[0] = 0x00007FF;
|
||||
atusb->hw->phy->supported.channels[2] = 0x00007FF;
|
||||
atusb->hw->phy->current_channel = 5;
|
||||
atusb->hw->phy->symbol_duration = 25;
|
||||
atusb->hw->phy->supported.lbt = NL802154_SUPPORTED_BOOL_BOTH;
|
||||
atusb->hw->phy->supported.tx_powers = at86rf212_powers;
|
||||
atusb->hw->phy->supported.tx_powers_size = ARRAY_SIZE(at86rf212_powers);
|
||||
atusb->hw->phy->supported.cca_ed_levels = at86rf212_ed_levels_100;
|
||||
atusb->hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(at86rf212_ed_levels_100);
|
||||
break;
|
||||
default:
|
||||
dev_err(&usb_dev->dev,
|
||||
@ -702,6 +958,9 @@ static int atusb_get_and_show_chip(struct atusb *atusb)
|
||||
goto fail;
|
||||
}
|
||||
|
||||
hw->phy->transmit_power = hw->phy->supported.tx_powers[0];
|
||||
hw->phy->cca_ed_level = hw->phy->supported.cca_ed_levels[7];
|
||||
|
||||
dev_info(&usb_dev->dev, "ATUSB: %s version %d\n", chip, version_num);
|
||||
|
||||
return 0;
|
||||
@ -794,32 +1053,9 @@ static int atusb_probe(struct usb_interface *interface,
|
||||
goto fail;
|
||||
|
||||
hw->parent = &usb_dev->dev;
|
||||
hw->flags = IEEE802154_HW_TX_OMIT_CKSUM | IEEE802154_HW_AFILT |
|
||||
IEEE802154_HW_PROMISCUOUS | IEEE802154_HW_CSMA_PARAMS;
|
||||
|
||||
hw->phy->flags = WPAN_PHY_FLAG_TXPOWER | WPAN_PHY_FLAG_CCA_ED_LEVEL |
|
||||
WPAN_PHY_FLAG_CCA_MODE;
|
||||
|
||||
hw->phy->supported.cca_modes = BIT(NL802154_CCA_ENERGY) |
|
||||
BIT(NL802154_CCA_CARRIER) | BIT(NL802154_CCA_ENERGY_CARRIER);
|
||||
hw->phy->supported.cca_opts = BIT(NL802154_CCA_OPT_ENERGY_CARRIER_AND) |
|
||||
BIT(NL802154_CCA_OPT_ENERGY_CARRIER_OR);
|
||||
|
||||
hw->phy->supported.cca_ed_levels = atusb_ed_levels;
|
||||
hw->phy->supported.cca_ed_levels_size = ARRAY_SIZE(atusb_ed_levels);
|
||||
|
||||
hw->phy->cca.mode = NL802154_CCA_ENERGY;
|
||||
|
||||
hw->phy->current_page = 0;
|
||||
hw->phy->current_channel = 11; /* reset default */
|
||||
hw->phy->supported.channels[0] = 0x7FFF800;
|
||||
hw->phy->supported.tx_powers = atusb_powers;
|
||||
hw->phy->supported.tx_powers_size = ARRAY_SIZE(atusb_powers);
|
||||
hw->phy->transmit_power = hw->phy->supported.tx_powers[0];
|
||||
hw->phy->cca_ed_level = hw->phy->supported.cca_ed_levels[7];
|
||||
|
||||
atusb_command(atusb, ATUSB_RF_RESET, 0);
|
||||
atusb_get_and_show_chip(atusb);
|
||||
atusb_get_and_conf_chip(atusb);
|
||||
atusb_get_and_show_revision(atusb);
|
||||
atusb_get_and_show_build(atusb);
|
||||
atusb_set_extended_addr(atusb);
|
||||
@ -941,5 +1177,6 @@ MODULE_AUTHOR("Alexander Aring <alex.aring@gmail.com>");
|
||||
MODULE_AUTHOR("Richard Sharpe <realrichardsharpe@gmail.com>");
|
||||
MODULE_AUTHOR("Stefan Schmidt <stefan@datenfreihafen.org>");
|
||||
MODULE_AUTHOR("Werner Almesberger <werner@almesberger.net>");
|
||||
MODULE_AUTHOR("Josef Filzmaier <j.filzmaier@gmx.at>");
|
||||
MODULE_DESCRIPTION("ATUSB IEEE 802.15.4 Driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
|
||||
@ -50,6 +50,14 @@ enum atusb_requests {
|
||||
ATUSB_EUI64_READ,
|
||||
};
|
||||
|
||||
enum {
|
||||
ATUSB_HW_TYPE_100813, /* 2010-08-13 */
|
||||
ATUSB_HW_TYPE_101216, /* 2010-12-16 */
|
||||
ATUSB_HW_TYPE_110131, /* 2011-01-31, ATmega32U2-based */
|
||||
ATUSB_HW_TYPE_RZUSB, /* Atmel Raven USB dongle with at86rf230 */
|
||||
ATUSB_HW_TYPE_HULUSB, /* Busware HUL USB dongle with at86rf212 */
|
||||
};
|
||||
|
||||
/*
|
||||
* Direction bRequest wValue wIndex wLength
|
||||
*
|
||||
|
||||
Loading…
Reference in New Issue
Block a user