diff options
Diffstat (limited to 'drivers/net/ieee802154/at86rf230.c')
| -rw-r--r-- | drivers/net/ieee802154/at86rf230.c | 520 |
1 files changed, 393 insertions, 127 deletions
diff --git a/drivers/net/ieee802154/at86rf230.c b/drivers/net/ieee802154/at86rf230.c index a30258aad13..89417ac4108 100644 --- a/drivers/net/ieee802154/at86rf230.c +++ b/drivers/net/ieee802154/at86rf230.c @@ -31,13 +31,13 @@ #include <linux/spi/spi.h> #include <linux/spi/at86rf230.h> #include <linux/skbuff.h> +#include <linux/of_gpio.h> #include <net/mac802154.h> #include <net/wpan-phy.h> struct at86rf230_local { struct spi_device *spi; - int rstn, slp_tr, dig2; u8 part; u8 vers; @@ -53,8 +53,16 @@ struct at86rf230_local { spinlock_t lock; bool irq_busy; bool is_tx; + bool tx_aret; + + int rssi_base_val; }; +static bool is_rf212(struct at86rf230_local *local) +{ + return local->part == 7; +} + #define RG_TRX_STATUS (0x01) #define SR_TRX_STATUS 0x01, 0x1f, 0 #define SR_RESERVED_01_3 0x01, 0x20, 5 @@ -100,7 +108,10 @@ struct at86rf230_local { #define SR_SFD_VALUE 0x0b, 0xff, 0 #define RG_TRX_CTRL_2 (0x0c) #define SR_OQPSK_DATA_RATE 0x0c, 0x03, 0 -#define SR_RESERVED_0c_2 0x0c, 0x7c, 2 +#define SR_SUB_MODE 0x0c, 0x04, 2 +#define SR_BPSK_QPSK 0x0c, 0x08, 3 +#define SR_OQPSK_SUB1_RC_EN 0x0c, 0x10, 4 +#define SR_RESERVED_0c_5 0x0c, 0x60, 5 #define SR_RX_SAFE_MODE 0x0c, 0x80, 7 #define RG_ANT_DIV (0x0d) #define SR_ANT_CTRL 0x0d, 0x03, 0 @@ -145,7 +156,7 @@ struct at86rf230_local { #define SR_RESERVED_17_5 0x17, 0x08, 3 #define SR_AACK_UPLD_RES_FT 0x17, 0x10, 4 #define SR_AACK_FLTR_RES_FT 0x17, 0x20, 5 -#define SR_RESERVED_17_2 0x17, 0x40, 6 +#define SR_CSMA_LBT_MODE 0x17, 0x40, 6 #define SR_RESERVED_17_1 0x17, 0x80, 7 #define RG_FTN_CTRL (0x18) #define SR_RESERVED_18_2 0x18, 0x7f, 0 @@ -234,6 +245,7 @@ struct at86rf230_local { #define STATE_TX_ON 0x09 /* 0x0a - 0x0e */ /* 0x0a - UNSUPPORTED_ATTRIBUTE */ #define STATE_SLEEP 0x0F +#define STATE_PREP_DEEP_SLEEP 0x10 #define STATE_BUSY_RX_AACK 0x11 #define STATE_BUSY_TX_ARET 0x12 #define STATE_RX_AACK_ON 0x16 @@ -244,6 +256,57 @@ struct at86rf230_local { #define STATE_TRANSITION_IN_PROGRESS 0x1F static int +__at86rf230_detect_device(struct spi_device *spi, u16 *man_id, u8 *part, + u8 *version) +{ + u8 data[4]; + u8 *buf = kmalloc(2, GFP_KERNEL); + int status; + struct spi_message msg; + struct spi_transfer xfer = { + .len = 2, + .tx_buf = buf, + .rx_buf = buf, + }; + u8 reg; + + if (!buf) + return -ENOMEM; + + for (reg = RG_PART_NUM; reg <= RG_MAN_ID_1; reg++) { + buf[0] = (reg & CMD_REG_MASK) | CMD_REG; + buf[1] = 0xff; + dev_vdbg(&spi->dev, "buf[0] = %02x\n", buf[0]); + spi_message_init(&msg); + spi_message_add_tail(&xfer, &msg); + + status = spi_sync(spi, &msg); + dev_vdbg(&spi->dev, "status = %d\n", status); + if (msg.status) + status = msg.status; + + dev_vdbg(&spi->dev, "status = %d\n", status); + dev_vdbg(&spi->dev, "buf[0] = %02x\n", buf[0]); + dev_vdbg(&spi->dev, "buf[1] = %02x\n", buf[1]); + + if (status == 0) + data[reg - RG_PART_NUM] = buf[1]; + else + break; + } + + if (status == 0) { + *part = data[0]; + *version = data[1]; + *man_id = (data[3] << 8) | data[2]; + } + + kfree(buf); + + return status; +} + +static int __at86rf230_write(struct at86rf230_local *lp, u8 addr, u8 data) { u8 *buf = lp->buf; @@ -489,7 +552,9 @@ at86rf230_state(struct ieee802154_dev *dev, int state) } while (val == STATE_TRANSITION_IN_PROGRESS); - if (val == desired_status) + if (val == desired_status || + (desired_status == STATE_RX_ON && val == STATE_BUSY_RX) || + (desired_status == STATE_RX_AACK_ON && val == STATE_BUSY_RX_AACK)) return 0; pr_err("unexpected state change: %d, asked for %d\n", val, state); @@ -510,7 +575,11 @@ at86rf230_start(struct ieee802154_dev *dev) if (rc) return rc; - return at86rf230_state(dev, STATE_RX_ON); + rc = at86rf230_state(dev, STATE_TX_ON); + if (rc) + return rc; + + return at86rf230_state(dev, STATE_RX_AACK_ON); } static void @@ -520,6 +589,39 @@ at86rf230_stop(struct ieee802154_dev *dev) } static int +at86rf230_set_channel(struct at86rf230_local *lp, int page, int channel) +{ + lp->rssi_base_val = -91; + + return at86rf230_write_subreg(lp, SR_CHANNEL, channel); +} + +static int +at86rf212_set_channel(struct at86rf230_local *lp, int page, int channel) +{ + int rc; + + if (channel == 0) + rc = at86rf230_write_subreg(lp, SR_SUB_MODE, 0); + else + rc = at86rf230_write_subreg(lp, SR_SUB_MODE, 1); + if (rc < 0) + return rc; + + if (page == 0) { + rc = at86rf230_write_subreg(lp, SR_BPSK_QPSK, 0); + lp->rssi_base_val = -100; + } else { + rc = at86rf230_write_subreg(lp, SR_BPSK_QPSK, 1); + lp->rssi_base_val = -98; + } + if (rc < 0) + return rc; + + return at86rf230_write_subreg(lp, SR_CHANNEL, channel); +} + +static int at86rf230_channel(struct ieee802154_dev *dev, int page, int channel) { struct at86rf230_local *lp = dev->priv; @@ -527,14 +629,22 @@ at86rf230_channel(struct ieee802154_dev *dev, int page, int channel) might_sleep(); - if (page != 0 || channel < 11 || channel > 26) { + if (page < 0 || page > 31 || + !(lp->dev->phy->channels_supported[page] & BIT(channel))) { WARN_ON(1); return -EINVAL; } - rc = at86rf230_write_subreg(lp, SR_CHANNEL, channel); + if (is_rf212(lp)) + rc = at86rf212_set_channel(lp, page, channel); + else + rc = at86rf230_set_channel(lp, page, channel); + if (rc < 0) + return rc; + msleep(1); /* Wait for PLL */ dev->phy->current_channel = channel; + dev->phy->current_page = page; return 0; } @@ -568,6 +678,12 @@ at86rf230_xmit(struct ieee802154_dev *dev, struct sk_buff *skb) if (rc) goto err_rx; + if (lp->tx_aret) { + rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_TX_ARET_ON); + if (rc) + goto err_rx; + } + rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_BUSY_TX); if (rc) goto err_rx; @@ -630,30 +746,31 @@ at86rf230_set_hw_addr_filt(struct ieee802154_dev *dev, struct at86rf230_local *lp = dev->priv; if (changed & IEEE802515_AFILT_SADDR_CHANGED) { + u16 addr = le16_to_cpu(filt->short_addr); + dev_vdbg(&lp->spi->dev, "at86rf230_set_hw_addr_filt called for saddr\n"); - __at86rf230_write(lp, RG_SHORT_ADDR_0, filt->short_addr); - __at86rf230_write(lp, RG_SHORT_ADDR_1, filt->short_addr >> 8); + __at86rf230_write(lp, RG_SHORT_ADDR_0, addr); + __at86rf230_write(lp, RG_SHORT_ADDR_1, addr >> 8); } if (changed & IEEE802515_AFILT_PANID_CHANGED) { + u16 pan = le16_to_cpu(filt->pan_id); + dev_vdbg(&lp->spi->dev, "at86rf230_set_hw_addr_filt called for pan id\n"); - __at86rf230_write(lp, RG_PAN_ID_0, filt->pan_id); - __at86rf230_write(lp, RG_PAN_ID_1, filt->pan_id >> 8); + __at86rf230_write(lp, RG_PAN_ID_0, pan); + __at86rf230_write(lp, RG_PAN_ID_1, pan >> 8); } if (changed & IEEE802515_AFILT_IEEEADDR_CHANGED) { + u8 i, addr[8]; + + memcpy(addr, &filt->ieee_addr, 8); dev_vdbg(&lp->spi->dev, "at86rf230_set_hw_addr_filt called for IEEE addr\n"); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_0, filt->ieee_addr[7]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_1, filt->ieee_addr[6]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_2, filt->ieee_addr[5]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_3, filt->ieee_addr[4]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_4, filt->ieee_addr[3]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_5, filt->ieee_addr[2]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_6, filt->ieee_addr[1]); - at86rf230_write_subreg(lp, SR_IEEE_ADDR_7, filt->ieee_addr[0]); + for (i = 0; i < 8; i++) + __at86rf230_write(lp, RG_IEEE_ADDR_0 + i, addr[i]); } if (changed & IEEE802515_AFILT_PANC_CHANGED) { @@ -668,6 +785,93 @@ at86rf230_set_hw_addr_filt(struct ieee802154_dev *dev, return 0; } +static int +at86rf212_set_txpower(struct ieee802154_dev *dev, int db) +{ + struct at86rf230_local *lp = dev->priv; + + /* typical maximum output is 5dBm with RG_PHY_TX_PWR 0x60, lower five + * bits decrease power in 1dB steps. 0x60 represents extra PA gain of + * 0dB. + * thus, supported values for db range from -26 to 5, for 31dB of + * reduction to 0dB of reduction. + */ + if (db > 5 || db < -26) + return -EINVAL; + + db = -(db - 5); + + return __at86rf230_write(lp, RG_PHY_TX_PWR, 0x60 | db); +} + +static int +at86rf212_set_lbt(struct ieee802154_dev *dev, bool on) +{ + struct at86rf230_local *lp = dev->priv; + + return at86rf230_write_subreg(lp, SR_CSMA_LBT_MODE, on); +} + +static int +at86rf212_set_cca_mode(struct ieee802154_dev *dev, u8 mode) +{ + struct at86rf230_local *lp = dev->priv; + + return at86rf230_write_subreg(lp, SR_CCA_MODE, mode); +} + +static int +at86rf212_set_cca_ed_level(struct ieee802154_dev *dev, s32 level) +{ + struct at86rf230_local *lp = dev->priv; + int desens_steps; + + if (level < lp->rssi_base_val || level > 30) + return -EINVAL; + + desens_steps = (level - lp->rssi_base_val) * 100 / 207; + + return at86rf230_write_subreg(lp, SR_CCA_ED_THRES, desens_steps); +} + +static int +at86rf212_set_csma_params(struct ieee802154_dev *dev, u8 min_be, u8 max_be, + u8 retries) +{ + struct at86rf230_local *lp = dev->priv; + int rc; + + if (min_be > max_be || max_be > 8 || retries > 5) + return -EINVAL; + + rc = at86rf230_write_subreg(lp, SR_MIN_BE, min_be); + if (rc) + return rc; + + rc = at86rf230_write_subreg(lp, SR_MAX_BE, max_be); + if (rc) + return rc; + + return at86rf230_write_subreg(lp, SR_MAX_CSMA_RETRIES, max_be); +} + +static int +at86rf212_set_frame_retries(struct ieee802154_dev *dev, s8 retries) +{ + struct at86rf230_local *lp = dev->priv; + int rc = 0; + + if (retries < -1 || retries > 15) + return -EINVAL; + + lp->tx_aret = retries >= 0; + + if (retries >= 0) + rc = at86rf230_write_subreg(lp, SR_MAX_FRAME_RETRIES, retries); + + return rc; +} + static struct ieee802154_ops at86rf230_ops = { .owner = THIS_MODULE, .xmit = at86rf230_xmit, @@ -678,6 +882,22 @@ static struct ieee802154_ops at86rf230_ops = { .set_hw_addr_filt = at86rf230_set_hw_addr_filt, }; +static struct ieee802154_ops at86rf212_ops = { + .owner = THIS_MODULE, + .xmit = at86rf230_xmit, + .ed = at86rf230_ed, + .set_channel = at86rf230_channel, + .start = at86rf230_start, + .stop = at86rf230_stop, + .set_hw_addr_filt = at86rf230_set_hw_addr_filt, + .set_txpower = at86rf212_set_txpower, + .set_lbt = at86rf212_set_lbt, + .set_cca_mode = at86rf212_set_cca_mode, + .set_cca_ed_level = at86rf212_set_cca_ed_level, + .set_csma_params = at86rf212_set_csma_params, + .set_frame_retries = at86rf212_set_frame_retries, +}; + static void at86rf230_irqwork(struct work_struct *work) { struct at86rf230_local *lp = @@ -695,8 +915,8 @@ static void at86rf230_irqwork(struct work_struct *work) status &= ~IRQ_TRX_UR; /* FIXME: possibly handle ???*/ if (status & IRQ_TRX_END) { - spin_lock_irqsave(&lp->lock, flags); status &= ~IRQ_TRX_END; + spin_lock_irqsave(&lp->lock, flags); if (lp->is_tx) { lp->is_tx = 0; spin_unlock_irqrestore(&lp->lock, flags); @@ -753,22 +973,15 @@ static int at86rf230_hw_init(struct at86rf230_local *lp) struct at86rf230_platform_data *pdata = lp->spi->dev.platform_data; int rc, irq_pol; u8 status; + u8 csma_seed[2]; rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status); if (rc) return rc; - dev_info(&lp->spi->dev, "Status: %02x\n", status); - if (status == STATE_P_ON) { - rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_TRX_OFF); - if (rc) - return rc; - msleep(1); - rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status); - if (rc) - return rc; - dev_info(&lp->spi->dev, "Status: %02x\n", status); - } + rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_FORCE_TRX_OFF); + if (rc) + return rc; /* configure irq polarity, defaults to high active */ if (pdata->irq_type & (IRQF_TRIGGER_FALLING | IRQF_TRIGGER_LOW)) @@ -784,6 +997,14 @@ static int at86rf230_hw_init(struct at86rf230_local *lp) if (rc) return rc; + get_random_bytes(csma_seed, ARRAY_SIZE(csma_seed)); + rc = at86rf230_write_subreg(lp, SR_CSMA_SEED_0, csma_seed[0]); + if (rc) + return rc; + rc = at86rf230_write_subreg(lp, SR_CSMA_SEED_1, csma_seed[1]); + if (rc) + return rc; + /* CLKM changes are applied immediately */ rc = at86rf230_write_subreg(lp, SR_CLKM_SHA_SEL, 0x00); if (rc) @@ -796,16 +1017,6 @@ static int at86rf230_hw_init(struct at86rf230_local *lp) /* Wait the next SLEEP cycle */ msleep(100); - rc = at86rf230_write_subreg(lp, SR_TRX_CMD, STATE_TX_ON); - if (rc) - return rc; - msleep(1); - - rc = at86rf230_read_subreg(lp, SR_TRX_STATUS, &status); - if (rc) - return rc; - dev_info(&lp->spi->dev, "Status: %02x\n", status); - rc = at86rf230_read_subreg(lp, SR_DVDD_OK, &status); if (rc) return rc; @@ -825,14 +1036,38 @@ static int at86rf230_hw_init(struct at86rf230_local *lp) return 0; } -static void at86rf230_fill_data(struct spi_device *spi) +static struct at86rf230_platform_data * +at86rf230_get_pdata(struct spi_device *spi) { - struct at86rf230_local *lp = spi_get_drvdata(spi); - struct at86rf230_platform_data *pdata = spi->dev.platform_data; + struct at86rf230_platform_data *pdata; + const char *irq_type; + + if (!IS_ENABLED(CONFIG_OF) || !spi->dev.of_node) + return spi->dev.platform_data; + + pdata = devm_kzalloc(&spi->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) + goto done; + + pdata->rstn = of_get_named_gpio(spi->dev.of_node, "reset-gpio", 0); + pdata->slp_tr = of_get_named_gpio(spi->dev.of_node, "sleep-gpio", 0); + + pdata->irq_type = IRQF_TRIGGER_RISING; + of_property_read_string(spi->dev.of_node, "irq-type", &irq_type); + if (!strcmp(irq_type, "level-high")) + pdata->irq_type = IRQF_TRIGGER_HIGH; + else if (!strcmp(irq_type, "level-low")) + pdata->irq_type = IRQF_TRIGGER_LOW; + else if (!strcmp(irq_type, "edge-rising")) + pdata->irq_type = IRQF_TRIGGER_RISING; + else if (!strcmp(irq_type, "edge-falling")) + pdata->irq_type = IRQF_TRIGGER_FALLING; + else + dev_warn(&spi->dev, "wrong irq-type specified using edge-rising\n"); - lp->rstn = pdata->rstn; - lp->slp_tr = pdata->slp_tr; - lp->dig2 = pdata->dig2; + spi->dev.platform_data = pdata; +done: + return pdata; } static int at86rf230_probe(struct spi_device *spi) @@ -840,133 +1075,146 @@ static int at86rf230_probe(struct spi_device *spi) struct at86rf230_platform_data *pdata; struct ieee802154_dev *dev; struct at86rf230_local *lp; - u8 man_id_0, man_id_1, status; + u16 man_id = 0; + u8 part = 0, version = 0, status; irq_handler_t irq_handler; work_func_t irq_worker; - int rc, supported = 0; + int rc; const char *chip; + struct ieee802154_ops *ops = NULL; if (!spi->irq) { dev_err(&spi->dev, "no IRQ specified\n"); return -EINVAL; } - pdata = spi->dev.platform_data; + pdata = at86rf230_get_pdata(spi); if (!pdata) { dev_err(&spi->dev, "no platform_data\n"); return -EINVAL; } - dev = ieee802154_alloc_device(sizeof(*lp), &at86rf230_ops); - if (!dev) - return -ENOMEM; - - lp = dev->priv; - lp->dev = dev; - - lp->spi = spi; - - dev->parent = &spi->dev; - dev->extra_tx_headroom = 0; - /* We do support only 2.4 Ghz */ - dev->phy->channels_supported[0] = 0x7FFF800; - dev->flags = IEEE802154_HW_OMIT_CKSUM; - - if (pdata->irq_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) { - irq_worker = at86rf230_irqwork; - irq_handler = at86rf230_isr; - } else { - irq_worker = at86rf230_irqwork_level; - irq_handler = at86rf230_isr_level; + if (gpio_is_valid(pdata->rstn)) { + rc = gpio_request(pdata->rstn, "rstn"); + if (rc) + return rc; } - mutex_init(&lp->bmux); - INIT_WORK(&lp->irqwork, irq_worker); - spin_lock_init(&lp->lock); - init_completion(&lp->tx_complete); - - spi_set_drvdata(spi, lp); - - at86rf230_fill_data(spi); - - rc = gpio_request(lp->rstn, "rstn"); - if (rc) - goto err_rstn; - - if (gpio_is_valid(lp->slp_tr)) { - rc = gpio_request(lp->slp_tr, "slp_tr"); + if (gpio_is_valid(pdata->slp_tr)) { + rc = gpio_request(pdata->slp_tr, "slp_tr"); if (rc) goto err_slp_tr; } - rc = gpio_direction_output(lp->rstn, 1); - if (rc) - goto err_gpio_dir; + if (gpio_is_valid(pdata->rstn)) { + rc = gpio_direction_output(pdata->rstn, 1); + if (rc) + goto err_gpio_dir; + } - if (gpio_is_valid(lp->slp_tr)) { - rc = gpio_direction_output(lp->slp_tr, 0); + if (gpio_is_valid(pdata->slp_tr)) { + rc = gpio_direction_output(pdata->slp_tr, 0); if (rc) goto err_gpio_dir; } /* Reset */ - msleep(1); - gpio_set_value(lp->rstn, 0); - msleep(1); - gpio_set_value(lp->rstn, 1); - msleep(1); + if (gpio_is_valid(pdata->rstn)) { + udelay(1); + gpio_set_value(pdata->rstn, 0); + udelay(1); + gpio_set_value(pdata->rstn, 1); + usleep_range(120, 240); + } - rc = at86rf230_read_subreg(lp, SR_MAN_ID_0, &man_id_0); - if (rc) - goto err_gpio_dir; - rc = at86rf230_read_subreg(lp, SR_MAN_ID_1, &man_id_1); - if (rc) + rc = __at86rf230_detect_device(spi, &man_id, &part, &version); + if (rc < 0) goto err_gpio_dir; - if (man_id_1 != 0x00 || man_id_0 != 0x1f) { + if (man_id != 0x001f) { dev_err(&spi->dev, "Non-Atmel dev found (MAN_ID %02x %02x)\n", - man_id_1, man_id_0); + man_id >> 8, man_id & 0xFF); rc = -EINVAL; goto err_gpio_dir; } - rc = at86rf230_read_subreg(lp, SR_PART_NUM, &lp->part); - if (rc) - goto err_gpio_dir; - - rc = at86rf230_read_subreg(lp, SR_VERSION_NUM, &lp->vers); - if (rc) - goto err_gpio_dir; - - switch (lp->part) { + switch (part) { case 2: chip = "at86rf230"; - /* supported = 1; FIXME: should be easy to support; */ + /* FIXME: should be easy to support; */ break; case 3: chip = "at86rf231"; - supported = 1; + ops = &at86rf230_ops; + break; + case 7: + chip = "at86rf212"; + if (version == 1) + ops = &at86rf212_ops; + break; + case 11: + chip = "at86rf233"; + ops = &at86rf230_ops; break; default: chip = "UNKNOWN"; break; } - dev_info(&spi->dev, "Detected %s chip version %d\n", chip, lp->vers); - if (!supported) { + dev_info(&spi->dev, "Detected %s chip version %d\n", chip, version); + if (!ops) { rc = -ENOTSUPP; goto err_gpio_dir; } + dev = ieee802154_alloc_device(sizeof(*lp), ops); + if (!dev) { + rc = -ENOMEM; + goto err_gpio_dir; + } + + lp = dev->priv; + lp->dev = dev; + lp->part = part; + lp->vers = version; + + lp->spi = spi; + + dev->parent = &spi->dev; + dev->extra_tx_headroom = 0; + dev->flags = IEEE802154_HW_OMIT_CKSUM | IEEE802154_HW_AACK; + + if (pdata->irq_type & (IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING)) { + irq_worker = at86rf230_irqwork; + irq_handler = at86rf230_isr; + } else { + irq_worker = at86rf230_irqwork_level; + irq_handler = at86rf230_isr_level; + } + + mutex_init(&lp->bmux); + INIT_WORK(&lp->irqwork, irq_worker); + spin_lock_init(&lp->lock); + init_completion(&lp->tx_complete); + + spi_set_drvdata(spi, lp); + + if (is_rf212(lp)) { + dev->phy->channels_supported[0] = 0x00007FF; + dev->phy->channels_supported[2] = 0x00007FF; + } else { + dev->phy->channels_supported[0] = 0x7FFF800; + } + rc = at86rf230_hw_init(lp); if (rc) - goto err_gpio_dir; + goto err_hw_init; rc = request_irq(spi->irq, irq_handler, IRQF_SHARED | pdata->irq_type, dev_name(&spi->dev), lp); if (rc) - goto err_gpio_dir; + goto err_hw_init; /* Read irq status register to reset irq line */ rc = at86rf230_read_subreg(lp, RG_IRQ_STATUS, 0xff, 0, &status); @@ -981,30 +1229,37 @@ static int at86rf230_probe(struct spi_device *spi) err_irq: free_irq(spi->irq, lp); +err_hw_init: flush_work(&lp->irqwork); -err_gpio_dir: - if (gpio_is_valid(lp->slp_tr)) - gpio_free(lp->slp_tr); -err_slp_tr: - gpio_free(lp->rstn); -err_rstn: + spi_set_drvdata(spi, NULL); mutex_destroy(&lp->bmux); ieee802154_free_device(lp->dev); + +err_gpio_dir: + if (gpio_is_valid(pdata->slp_tr)) + gpio_free(pdata->slp_tr); +err_slp_tr: + if (gpio_is_valid(pdata->rstn)) + gpio_free(pdata->rstn); return rc; } static int at86rf230_remove(struct spi_device *spi) { struct at86rf230_local *lp = spi_get_drvdata(spi); + struct at86rf230_platform_data *pdata = spi->dev.platform_data; + /* mask all at86rf230 irq's */ + at86rf230_write_subreg(lp, SR_IRQ_MASK, 0); ieee802154_unregister_device(lp->dev); free_irq(spi->irq, lp); flush_work(&lp->irqwork); - if (gpio_is_valid(lp->slp_tr)) - gpio_free(lp->slp_tr); - gpio_free(lp->rstn); + if (gpio_is_valid(pdata->slp_tr)) + gpio_free(pdata->slp_tr); + if (gpio_is_valid(pdata->rstn)) + gpio_free(pdata->rstn); mutex_destroy(&lp->bmux); ieee802154_free_device(lp->dev); @@ -1013,8 +1268,19 @@ static int at86rf230_remove(struct spi_device *spi) return 0; } +#if IS_ENABLED(CONFIG_OF) +static struct of_device_id at86rf230_of_match[] = { + { .compatible = "atmel,at86rf230", }, + { .compatible = "atmel,at86rf231", }, + { .compatible = "atmel,at86rf233", }, + { .compatible = "atmel,at86rf212", }, + { }, +}; +#endif + static struct spi_driver at86rf230_driver = { .driver = { + .of_match_table = of_match_ptr(at86rf230_of_match), .name = "at86rf230", .owner = THIS_MODULE, }, |