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NFC: trf7970a: Clean up coding style issues
Clean up coding style issues according to scripts/Lindent. Some scripts/Lindent changes were reverted when it appeared to make the code less readable or when it made the line run over 80 characters. Signed-off-by: Mark Greer <mgreer@animalcreek.com> Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
This commit is contained in:
Mark Greer
Samuel Ortiz
parent
d34e48d6a6
commit
e2f0f67108
@ -122,11 +122,10 @@
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NFC_PROTO_ISO14443_B_MASK | NFC_PROTO_FELICA_MASK | \
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NFC_PROTO_ISO15693_MASK | NFC_PROTO_NFC_DEP_MASK)
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#define TRF7970A_AUTOSUSPEND_DELAY 30000 /* 30 seconds */
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#define TRF7970A_AUTOSUSPEND_DELAY 30000 /* 30 seconds */
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#define TRF7970A_13MHZ_CLOCK_FREQUENCY 13560000
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#define TRF7970A_27MHZ_CLOCK_FREQUENCY 27120000
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#define TRF7970A_RX_SKB_ALLOC_SIZE 256
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#define TRF7970A_FIFO_SIZE 127
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@ -294,7 +293,7 @@
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#define TRF7970A_REG_IO_CTRL_AUTO_REG BIT(7)
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/* IRQ Status Register Bits */
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#define TRF7970A_IRQ_STATUS_NORESP BIT(0) /* ISO15693 only */
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#define TRF7970A_IRQ_STATUS_NORESP BIT(0) /* ISO15693 only */
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#define TRF7970A_IRQ_STATUS_NFC_COL_ERROR BIT(0)
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#define TRF7970A_IRQ_STATUS_COL BIT(1)
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#define TRF7970A_IRQ_STATUS_FRAMING_EOF_ERROR BIT(2)
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@ -459,7 +458,6 @@ struct trf7970a {
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struct delayed_work timeout_work;
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};
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static int trf7970a_cmd(struct trf7970a *trf, u8 opcode)
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{
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u8 cmd = TRF7970A_CMD_BIT_CTRL | TRF7970A_CMD_BIT_OPCODE(opcode);
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@ -470,7 +468,7 @@ static int trf7970a_cmd(struct trf7970a *trf, u8 opcode)
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ret = spi_write(trf->spi, &cmd, 1);
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if (ret)
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dev_err(trf->dev, "%s - cmd: 0x%x, ret: %d\n", __func__, cmd,
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ret);
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ret);
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return ret;
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}
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@ -482,14 +480,15 @@ static int trf7970a_read(struct trf7970a *trf, u8 reg, u8 *val)
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ret = spi_write_then_read(trf->spi, &addr, 1, val, 1);
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if (ret)
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dev_err(trf->dev, "%s - addr: 0x%x, ret: %d\n", __func__, addr,
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ret);
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ret);
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dev_dbg(trf->dev, "read(0x%x): 0x%x\n", addr, *val);
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return ret;
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}
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static int trf7970a_read_cont(struct trf7970a *trf, u8 reg, u8 *buf, size_t len)
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static int trf7970a_read_cont(struct trf7970a *trf, u8 reg, u8 *buf,
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size_t len)
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{
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u8 addr = reg | TRF7970A_CMD_BIT_RW | TRF7970A_CMD_BIT_CONTINUOUS;
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struct spi_transfer t[2];
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@ -513,7 +512,7 @@ static int trf7970a_read_cont(struct trf7970a *trf, u8 reg, u8 *buf, size_t len)
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ret = spi_sync(trf->spi, &m);
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if (ret)
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dev_err(trf->dev, "%s - addr: 0x%x, ret: %d\n", __func__, addr,
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ret);
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ret);
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return ret;
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}
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@ -527,7 +526,7 @@ static int trf7970a_write(struct trf7970a *trf, u8 reg, u8 val)
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ret = spi_write(trf->spi, buf, 2);
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if (ret)
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dev_err(trf->dev, "%s - write: 0x%x 0x%x, ret: %d\n", __func__,
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buf[0], buf[1], ret);
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buf[0], buf[1], ret);
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return ret;
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}
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@ -549,7 +548,7 @@ static int trf7970a_read_irqstatus(struct trf7970a *trf, u8 *status)
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if (ret)
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dev_err(trf->dev, "%s - irqstatus: Status read failed: %d\n",
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__func__, ret);
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__func__, ret);
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else
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*status = buf[0];
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@ -563,12 +562,12 @@ static int trf7970a_read_target_proto(struct trf7970a *trf, u8 *target_proto)
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u8 addr;
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addr = TRF79070A_NFC_TARGET_PROTOCOL | TRF7970A_CMD_BIT_RW |
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TRF7970A_CMD_BIT_CONTINUOUS;
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TRF7970A_CMD_BIT_CONTINUOUS;
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ret = spi_write_then_read(trf->spi, &addr, 1, buf, 2);
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if (ret)
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dev_err(trf->dev, "%s - target_proto: Read failed: %d\n",
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__func__, ret);
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__func__, ret);
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else
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*target_proto = buf[0];
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@ -599,7 +598,7 @@ static int trf7970a_mode_detect(struct trf7970a *trf, u8 *rf_tech)
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break;
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default:
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dev_dbg(trf->dev, "%s - mode_detect: target_proto: 0x%x\n",
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__func__, target_proto);
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__func__, target_proto);
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return -EIO;
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}
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@ -615,8 +614,8 @@ static void trf7970a_send_upstream(struct trf7970a *trf)
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if (trf->rx_skb && !IS_ERR(trf->rx_skb) && !trf->aborting)
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print_hex_dump_debug("trf7970a rx data: ", DUMP_PREFIX_NONE,
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16, 1, trf->rx_skb->data, trf->rx_skb->len,
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false);
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16, 1, trf->rx_skb->data, trf->rx_skb->len,
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false);
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trf->state = TRF7970A_ST_IDLE;
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@ -656,7 +655,8 @@ static void trf7970a_send_err_upstream(struct trf7970a *trf, int errno)
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}
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static int trf7970a_transmit(struct trf7970a *trf, struct sk_buff *skb,
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unsigned int len, u8 *prefix, unsigned int prefix_len)
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unsigned int len, u8 *prefix,
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unsigned int prefix_len)
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{
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struct spi_transfer t[2];
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struct spi_message m;
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@ -664,7 +664,7 @@ static int trf7970a_transmit(struct trf7970a *trf, struct sk_buff *skb,
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int ret;
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print_hex_dump_debug("trf7970a tx data: ", DUMP_PREFIX_NONE,
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16, 1, skb->data, len, false);
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16, 1, skb->data, len, false);
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spi_message_init(&m);
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@ -681,7 +681,7 @@ static int trf7970a_transmit(struct trf7970a *trf, struct sk_buff *skb,
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ret = spi_sync(trf->spi, &m);
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if (ret) {
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dev_err(trf->dev, "%s - Can't send tx data: %d\n", __func__,
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ret);
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ret);
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return ret;
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}
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@ -705,7 +705,7 @@ static int trf7970a_transmit(struct trf7970a *trf, struct sk_buff *skb,
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}
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dev_dbg(trf->dev, "Setting timeout for %d ms, state: %d\n", timeout,
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trf->state);
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trf->state);
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schedule_delayed_work(&trf->timeout_work, msecs_to_jiffies(timeout));
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@ -773,9 +773,9 @@ static void trf7970a_drain_fifo(struct trf7970a *trf, u8 status)
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if (fifo_bytes > skb_tailroom(skb)) {
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skb = skb_copy_expand(skb, skb_headroom(skb),
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max_t(int, fifo_bytes,
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TRF7970A_RX_SKB_ALLOC_SIZE),
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GFP_KERNEL);
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max_t(int, fifo_bytes,
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TRF7970A_RX_SKB_ALLOC_SIZE),
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GFP_KERNEL);
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if (!skb) {
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trf7970a_send_err_upstream(trf, -ENOMEM);
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return;
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@ -786,7 +786,7 @@ static void trf7970a_drain_fifo(struct trf7970a *trf, u8 status)
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}
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ret = trf7970a_read_cont(trf, TRF7970A_FIFO_IO_REGISTER,
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skb_put(skb, fifo_bytes), fifo_bytes);
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skb_put(skb, fifo_bytes), fifo_bytes);
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if (ret) {
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trf7970a_send_err_upstream(trf, ret);
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return;
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@ -794,8 +794,7 @@ static void trf7970a_drain_fifo(struct trf7970a *trf, u8 status)
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/* If received Type 2 ACK/NACK, shift right 4 bits and pass up */
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if ((trf->framing == NFC_DIGITAL_FRAMING_NFCA_T2T) && (skb->len == 1) &&
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(trf->special_fcn_reg1 ==
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TRF7970A_SPECIAL_FCN_REG1_4_BIT_RX)) {
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(trf->special_fcn_reg1 == TRF7970A_SPECIAL_FCN_REG1_4_BIT_RX)) {
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skb->data[0] >>= 4;
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status = TRF7970A_IRQ_STATUS_SRX;
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} else {
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@ -818,16 +817,16 @@ static void trf7970a_drain_fifo(struct trf7970a *trf, u8 status)
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}
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no_rx_data:
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if (status == TRF7970A_IRQ_STATUS_SRX) { /* Receive complete */
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if (status == TRF7970A_IRQ_STATUS_SRX) { /* Receive complete */
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trf7970a_send_upstream(trf);
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return;
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}
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dev_dbg(trf->dev, "Setting timeout for %d ms\n",
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TRF7970A_WAIT_FOR_RX_DATA_TIMEOUT);
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TRF7970A_WAIT_FOR_RX_DATA_TIMEOUT);
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schedule_delayed_work(&trf->timeout_work,
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msecs_to_jiffies(TRF7970A_WAIT_FOR_RX_DATA_TIMEOUT));
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msecs_to_jiffies(TRF7970A_WAIT_FOR_RX_DATA_TIMEOUT));
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}
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static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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@ -850,7 +849,7 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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}
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dev_dbg(trf->dev, "IRQ - state: %d, status: 0x%x\n", trf->state,
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status);
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status);
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if (!status) {
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mutex_unlock(&trf->lock);
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@ -875,7 +874,7 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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case TRF7970A_ST_WAIT_FOR_TX_FIFO:
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if (status & TRF7970A_IRQ_STATUS_TX) {
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trf->ignore_timeout =
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!cancel_delayed_work(&trf->timeout_work);
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!cancel_delayed_work(&trf->timeout_work);
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trf7970a_fill_fifo(trf);
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} else {
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trf7970a_send_err_upstream(trf, -EIO);
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@ -885,11 +884,11 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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case TRF7970A_ST_WAIT_FOR_RX_DATA_CONT:
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if (status & TRF7970A_IRQ_STATUS_SRX) {
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trf->ignore_timeout =
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!cancel_delayed_work(&trf->timeout_work);
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!cancel_delayed_work(&trf->timeout_work);
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trf7970a_drain_fifo(trf, status);
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} else if (status & TRF7970A_IRQ_STATUS_FIFO) {
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ret = trf7970a_read(trf, TRF7970A_FIFO_STATUS,
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&fifo_bytes);
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&fifo_bytes);
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fifo_bytes &= ~TRF7970A_FIFO_STATUS_OVERFLOW;
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@ -898,14 +897,14 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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else if (!fifo_bytes)
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trf7970a_cmd(trf, TRF7970A_CMD_FIFO_RESET);
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} else if ((status == TRF7970A_IRQ_STATUS_TX) ||
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(!trf->is_initiator &&
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(status == (TRF7970A_IRQ_STATUS_TX |
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TRF7970A_IRQ_STATUS_NFC_RF)))) {
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(!trf->is_initiator &&
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(status == (TRF7970A_IRQ_STATUS_TX |
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TRF7970A_IRQ_STATUS_NFC_RF)))) {
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trf7970a_cmd(trf, TRF7970A_CMD_FIFO_RESET);
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if (!trf->timeout) {
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trf->ignore_timeout = !cancel_delayed_work(
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&trf->timeout_work);
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trf->ignore_timeout =
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!cancel_delayed_work(&trf->timeout_work);
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trf->rx_skb = ERR_PTR(0);
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trf7970a_send_upstream(trf);
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break;
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@ -929,13 +928,13 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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break;
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case NFC_DIGITAL_FRAMING_NFCA_ANTICOL_COMPLETE:
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ret = trf7970a_write(trf,
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TRF7970A_SPECIAL_FCN_REG1,
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TRF7970A_SPECIAL_FCN_REG1_14_ANTICOLL);
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TRF7970A_SPECIAL_FCN_REG1,
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TRF7970A_SPECIAL_FCN_REG1_14_ANTICOLL);
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if (ret)
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goto err_unlock_exit;
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trf->special_fcn_reg1 =
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TRF7970A_SPECIAL_FCN_REG1_14_ANTICOLL;
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TRF7970A_SPECIAL_FCN_REG1_14_ANTICOLL;
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break;
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default:
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break;
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@ -943,7 +942,7 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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if (iso_ctrl != trf->iso_ctrl) {
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ret = trf7970a_write(trf, TRF7970A_ISO_CTRL,
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iso_ctrl);
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iso_ctrl);
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if (ret)
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goto err_unlock_exit;
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@ -960,7 +959,7 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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case TRF7970A_ST_LISTENING:
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if (status & TRF7970A_IRQ_STATUS_SRX) {
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trf->ignore_timeout =
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!cancel_delayed_work(&trf->timeout_work);
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!cancel_delayed_work(&trf->timeout_work);
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trf7970a_drain_fifo(trf, status);
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} else if (!(status & TRF7970A_IRQ_STATUS_NFC_RF)) {
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trf7970a_send_err_upstream(trf, -EIO);
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@ -969,7 +968,7 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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case TRF7970A_ST_LISTENING_MD:
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if (status & TRF7970A_IRQ_STATUS_SRX) {
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trf->ignore_timeout =
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!cancel_delayed_work(&trf->timeout_work);
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!cancel_delayed_work(&trf->timeout_work);
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ret = trf7970a_mode_detect(trf, &trf->md_rf_tech);
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if (ret) {
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@ -984,7 +983,7 @@ static irqreturn_t trf7970a_irq(int irq, void *dev_id)
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break;
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default:
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dev_err(trf->dev, "%s - Driver in invalid state: %d\n",
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__func__, trf->state);
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__func__, trf->state);
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}
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err_unlock_exit:
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@ -1009,19 +1008,19 @@ static void trf7970a_issue_eof(struct trf7970a *trf)
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trf->state = TRF7970A_ST_WAIT_FOR_RX_DATA;
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dev_dbg(trf->dev, "Setting timeout for %d ms, state: %d\n",
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trf->timeout, trf->state);
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trf->timeout, trf->state);
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schedule_delayed_work(&trf->timeout_work,
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msecs_to_jiffies(trf->timeout));
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msecs_to_jiffies(trf->timeout));
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}
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static void trf7970a_timeout_work_handler(struct work_struct *work)
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{
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struct trf7970a *trf = container_of(work, struct trf7970a,
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timeout_work.work);
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timeout_work.work);
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dev_dbg(trf->dev, "Timeout - state: %d, ignore_timeout: %d\n",
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trf->state, trf->ignore_timeout);
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trf->state, trf->ignore_timeout);
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mutex_lock(&trf->lock);
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@ -1052,7 +1051,7 @@ static int trf7970a_init(struct trf7970a *trf)
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goto err_out;
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ret = trf7970a_write(trf, TRF7970A_REG_IO_CTRL,
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trf->io_ctrl | TRF7970A_REG_IO_CTRL_VRS(0x1));
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trf->io_ctrl | TRF7970A_REG_IO_CTRL_VRS(0x1));
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if (ret)
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goto err_out;
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@ -1065,13 +1064,13 @@ static int trf7970a_init(struct trf7970a *trf)
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trf->chip_status_ctrl &= ~TRF7970A_CHIP_STATUS_RF_ON;
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ret = trf7970a_write(trf, TRF7970A_MODULATOR_SYS_CLK_CTRL,
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trf->modulator_sys_clk_ctrl);
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trf->modulator_sys_clk_ctrl);
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if (ret)
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goto err_out;
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ret = trf7970a_write(trf, TRF7970A_ADJUTABLE_FIFO_IRQ_LEVELS,
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TRF7970A_ADJUTABLE_FIFO_IRQ_LEVELS_WLH_96 |
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TRF7970A_ADJUTABLE_FIFO_IRQ_LEVELS_WLL_32);
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TRF7970A_ADJUTABLE_FIFO_IRQ_LEVELS_WLH_96 |
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TRF7970A_ADJUTABLE_FIFO_IRQ_LEVELS_WLL_32);
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if (ret)
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goto err_out;
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@ -1092,7 +1091,7 @@ static int trf7970a_init(struct trf7970a *trf)
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static void trf7970a_switch_rf_off(struct trf7970a *trf)
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{
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if ((trf->state == TRF7970A_ST_PWR_OFF) ||
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(trf->state == TRF7970A_ST_RF_OFF))
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(trf->state == TRF7970A_ST_RF_OFF))
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return;
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||||
dev_dbg(trf->dev, "Switching rf off\n");
|
||||
@ -1116,9 +1115,9 @@ static int trf7970a_switch_rf_on(struct trf7970a *trf)
|
||||
|
||||
pm_runtime_get_sync(trf->dev);
|
||||
|
||||
if (trf->state != TRF7970A_ST_RF_OFF) { /* Power on, RF off */
|
||||
if (trf->state != TRF7970A_ST_RF_OFF) { /* Power on, RF off */
|
||||
dev_err(trf->dev, "%s - Incorrect state: %d\n", __func__,
|
||||
trf->state);
|
||||
trf->state);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
@ -1153,7 +1152,7 @@ static int trf7970a_switch_rf(struct nfc_digital_dev *ddev, bool on)
|
||||
break;
|
||||
default:
|
||||
dev_err(trf->dev, "%s - Invalid request: %d %d\n",
|
||||
__func__, trf->state, on);
|
||||
__func__, trf->state, on);
|
||||
trf7970a_switch_rf_off(trf);
|
||||
ret = -EINVAL;
|
||||
}
|
||||
@ -1164,7 +1163,7 @@ static int trf7970a_switch_rf(struct nfc_digital_dev *ddev, bool on)
|
||||
break;
|
||||
default:
|
||||
dev_err(trf->dev, "%s - Invalid request: %d %d\n",
|
||||
__func__, trf->state, on);
|
||||
__func__, trf->state, on);
|
||||
ret = -EINVAL;
|
||||
/* FALLTHROUGH */
|
||||
case TRF7970A_ST_IDLE:
|
||||
@ -1189,36 +1188,36 @@ static int trf7970a_in_config_rf_tech(struct trf7970a *trf, int tech)
|
||||
case NFC_DIGITAL_RF_TECH_106A:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_14443A_106;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_OOK;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_OOK;
|
||||
trf->guard_time = TRF7970A_GUARD_TIME_NFCA;
|
||||
break;
|
||||
case NFC_DIGITAL_RF_TECH_106B:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_14443B_106;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
trf->guard_time = TRF7970A_GUARD_TIME_NFCB;
|
||||
break;
|
||||
case NFC_DIGITAL_RF_TECH_212F:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_FELICA_212;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
trf->guard_time = TRF7970A_GUARD_TIME_NFCF;
|
||||
break;
|
||||
case NFC_DIGITAL_RF_TECH_424F:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_FELICA_424;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
trf->guard_time = TRF7970A_GUARD_TIME_NFCF;
|
||||
break;
|
||||
case NFC_DIGITAL_RF_TECH_ISO15693:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_15693_SGL_1OF4_2648;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_OOK;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_OOK;
|
||||
trf->guard_time = TRF7970A_GUARD_TIME_15693;
|
||||
break;
|
||||
default:
|
||||
@ -1245,7 +1244,8 @@ static int trf7970a_is_rf_field(struct trf7970a *trf, bool *is_rf_field)
|
||||
u8 rssi;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_CHIP_STATUS_CTRL,
|
||||
trf->chip_status_ctrl | TRF7970A_CHIP_STATUS_REC_ON);
|
||||
trf->chip_status_ctrl |
|
||||
TRF7970A_CHIP_STATUS_REC_ON);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1260,7 +1260,7 @@ static int trf7970a_is_rf_field(struct trf7970a *trf, bool *is_rf_field)
|
||||
return ret;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_CHIP_STATUS_CTRL,
|
||||
trf->chip_status_ctrl);
|
||||
trf->chip_status_ctrl);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1327,15 +1327,15 @@ static int trf7970a_in_config_framing(struct trf7970a *trf, int framing)
|
||||
trf->iso_ctrl = iso_ctrl;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_MODULATOR_SYS_CLK_CTRL,
|
||||
trf->modulator_sys_clk_ctrl);
|
||||
trf->modulator_sys_clk_ctrl);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (!(trf->chip_status_ctrl & TRF7970A_CHIP_STATUS_RF_ON)) {
|
||||
ret = trf7970a_write(trf, TRF7970A_CHIP_STATUS_CTRL,
|
||||
trf->chip_status_ctrl |
|
||||
TRF7970A_CHIP_STATUS_RF_ON);
|
||||
trf->chip_status_ctrl |
|
||||
TRF7970A_CHIP_STATUS_RF_ON);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1348,7 +1348,7 @@ static int trf7970a_in_config_framing(struct trf7970a *trf, int framing)
|
||||
}
|
||||
|
||||
static int trf7970a_in_configure_hw(struct nfc_digital_dev *ddev, int type,
|
||||
int param)
|
||||
int param)
|
||||
{
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
int ret;
|
||||
@ -1360,7 +1360,7 @@ static int trf7970a_in_configure_hw(struct nfc_digital_dev *ddev, int type,
|
||||
trf->is_initiator = true;
|
||||
|
||||
if ((trf->state == TRF7970A_ST_PWR_OFF) ||
|
||||
(trf->state == TRF7970A_ST_RF_OFF)) {
|
||||
(trf->state == TRF7970A_ST_RF_OFF)) {
|
||||
ret = trf7970a_switch_rf_on(trf);
|
||||
if (ret)
|
||||
goto err_unlock;
|
||||
@ -1418,7 +1418,7 @@ static int trf7970a_per_cmd_config(struct trf7970a *trf, struct sk_buff *skb)
|
||||
* has to send an EOF in order to get a response.
|
||||
*/
|
||||
if ((trf->technology == NFC_DIGITAL_RF_TECH_106A) &&
|
||||
(trf->framing == NFC_DIGITAL_FRAMING_NFCA_T2T)) {
|
||||
(trf->framing == NFC_DIGITAL_FRAMING_NFCA_T2T)) {
|
||||
if (req[0] == NFC_T2T_CMD_READ)
|
||||
special_fcn_reg1 = 0;
|
||||
else
|
||||
@ -1426,7 +1426,7 @@ static int trf7970a_per_cmd_config(struct trf7970a *trf, struct sk_buff *skb)
|
||||
|
||||
if (special_fcn_reg1 != trf->special_fcn_reg1) {
|
||||
ret = trf7970a_write(trf, TRF7970A_SPECIAL_FCN_REG1,
|
||||
special_fcn_reg1);
|
||||
special_fcn_reg1);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1446,7 +1446,7 @@ static int trf7970a_per_cmd_config(struct trf7970a *trf, struct sk_buff *skb)
|
||||
iso_ctrl |= TRF7970A_ISO_CTRL_15693_SGL_1OF4_2648;
|
||||
break;
|
||||
case (ISO15693_REQ_FLAG_SUB_CARRIER |
|
||||
ISO15693_REQ_FLAG_DATA_RATE):
|
||||
ISO15693_REQ_FLAG_DATA_RATE):
|
||||
iso_ctrl |= TRF7970A_ISO_CTRL_15693_DBL_1OF4_2669;
|
||||
break;
|
||||
}
|
||||
@ -1461,10 +1461,10 @@ static int trf7970a_per_cmd_config(struct trf7970a *trf, struct sk_buff *skb)
|
||||
|
||||
if (trf->framing == NFC_DIGITAL_FRAMING_ISO15693_T5T) {
|
||||
if (trf7970a_is_iso15693_write_or_lock(req[1]) &&
|
||||
(req[0] & ISO15693_REQ_FLAG_OPTION))
|
||||
(req[0] & ISO15693_REQ_FLAG_OPTION))
|
||||
trf->issue_eof = true;
|
||||
else if ((trf->quirks &
|
||||
TRF7970A_QUIRK_T5T_RMB_EXTRA_BYTE) &&
|
||||
TRF7970A_QUIRK_T5T_RMB_EXTRA_BYTE) &&
|
||||
(req[1] == ISO15693_CMD_READ_MULTIPLE_BLOCK))
|
||||
trf->adjust_resp_len = true;
|
||||
}
|
||||
@ -1474,8 +1474,8 @@ static int trf7970a_per_cmd_config(struct trf7970a *trf, struct sk_buff *skb)
|
||||
}
|
||||
|
||||
static int trf7970a_send_cmd(struct nfc_digital_dev *ddev,
|
||||
struct sk_buff *skb, u16 timeout,
|
||||
nfc_digital_cmd_complete_t cb, void *arg)
|
||||
struct sk_buff *skb, u16 timeout,
|
||||
nfc_digital_cmd_complete_t cb, void *arg)
|
||||
{
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
u8 prefix[5];
|
||||
@ -1484,7 +1484,7 @@ static int trf7970a_send_cmd(struct nfc_digital_dev *ddev,
|
||||
u8 status;
|
||||
|
||||
dev_dbg(trf->dev, "New request - state: %d, timeout: %d ms, len: %d\n",
|
||||
trf->state, timeout, skb->len);
|
||||
trf->state, timeout, skb->len);
|
||||
|
||||
if (skb->len > TRF7970A_TX_MAX)
|
||||
return -EINVAL;
|
||||
@ -1492,9 +1492,9 @@ static int trf7970a_send_cmd(struct nfc_digital_dev *ddev,
|
||||
mutex_lock(&trf->lock);
|
||||
|
||||
if ((trf->state != TRF7970A_ST_IDLE) &&
|
||||
(trf->state != TRF7970A_ST_IDLE_RX_BLOCKED)) {
|
||||
(trf->state != TRF7970A_ST_IDLE_RX_BLOCKED)) {
|
||||
dev_err(trf->dev, "%s - Bogus state: %d\n", __func__,
|
||||
trf->state);
|
||||
trf->state);
|
||||
ret = -EIO;
|
||||
goto out_err;
|
||||
}
|
||||
@ -1508,7 +1508,7 @@ static int trf7970a_send_cmd(struct nfc_digital_dev *ddev,
|
||||
|
||||
if (timeout) {
|
||||
trf->rx_skb = nfc_alloc_recv_skb(TRF7970A_RX_SKB_ALLOC_SIZE,
|
||||
GFP_KERNEL);
|
||||
GFP_KERNEL);
|
||||
if (!trf->rx_skb) {
|
||||
dev_dbg(trf->dev, "Can't alloc rx_skb\n");
|
||||
ret = -ENOMEM;
|
||||
@ -1545,14 +1545,14 @@ static int trf7970a_send_cmd(struct nfc_digital_dev *ddev,
|
||||
* That totals 5 bytes.
|
||||
*/
|
||||
prefix[0] = TRF7970A_CMD_BIT_CTRL |
|
||||
TRF7970A_CMD_BIT_OPCODE(TRF7970A_CMD_FIFO_RESET);
|
||||
TRF7970A_CMD_BIT_OPCODE(TRF7970A_CMD_FIFO_RESET);
|
||||
prefix[1] = TRF7970A_CMD_BIT_CTRL |
|
||||
TRF7970A_CMD_BIT_OPCODE(trf->tx_cmd);
|
||||
TRF7970A_CMD_BIT_OPCODE(trf->tx_cmd);
|
||||
prefix[2] = TRF7970A_CMD_BIT_CONTINUOUS | TRF7970A_TX_LENGTH_BYTE1;
|
||||
|
||||
if (trf->framing == NFC_DIGITAL_FRAMING_NFCA_SHORT) {
|
||||
prefix[3] = 0x00;
|
||||
prefix[4] = 0x0f; /* 7 bits */
|
||||
prefix[4] = 0x0f; /* 7 bits */
|
||||
} else {
|
||||
prefix[3] = (len & 0xf00) >> 4;
|
||||
prefix[3] |= ((len & 0xf0) >> 4);
|
||||
@ -1586,25 +1586,24 @@ static int trf7970a_tg_config_rf_tech(struct trf7970a *trf, int tech)
|
||||
switch (tech) {
|
||||
case NFC_DIGITAL_RF_TECH_106A:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_NFC_NFC_CE_MODE |
|
||||
TRF7970A_ISO_CTRL_NFC_CE |
|
||||
TRF7970A_ISO_CTRL_NFC_CE_14443A;
|
||||
TRF7970A_ISO_CTRL_NFC_CE | TRF7970A_ISO_CTRL_NFC_CE_14443A;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_OOK;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_OOK;
|
||||
break;
|
||||
case NFC_DIGITAL_RF_TECH_212F:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_NFC_NFC_CE_MODE |
|
||||
TRF7970A_ISO_CTRL_NFC_NFCF_212;
|
||||
TRF7970A_ISO_CTRL_NFC_NFCF_212;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
break;
|
||||
case NFC_DIGITAL_RF_TECH_424F:
|
||||
trf->iso_ctrl_tech = TRF7970A_ISO_CTRL_NFC_NFC_CE_MODE |
|
||||
TRF7970A_ISO_CTRL_NFC_NFCF_424;
|
||||
TRF7970A_ISO_CTRL_NFC_NFCF_424;
|
||||
trf->modulator_sys_clk_ctrl =
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
(trf->modulator_sys_clk_ctrl & 0xf8) |
|
||||
TRF7970A_MODULATOR_DEPTH_ASK10;
|
||||
break;
|
||||
default:
|
||||
dev_dbg(trf->dev, "Unsupported rf technology: %d\n", tech);
|
||||
@ -1621,9 +1620,9 @@ static int trf7970a_tg_config_rf_tech(struct trf7970a *trf, int tech)
|
||||
* here.
|
||||
*/
|
||||
if ((trf->framing == NFC_DIGITAL_FRAMING_NFC_DEP_ACTIVATED) &&
|
||||
(trf->iso_ctrl_tech != trf->iso_ctrl)) {
|
||||
(trf->iso_ctrl_tech != trf->iso_ctrl)) {
|
||||
ret = trf7970a_write(trf, TRF7970A_ISO_CTRL,
|
||||
trf->iso_ctrl_tech);
|
||||
trf->iso_ctrl_tech);
|
||||
|
||||
trf->iso_ctrl = trf->iso_ctrl_tech;
|
||||
}
|
||||
@ -1678,15 +1677,15 @@ static int trf7970a_tg_config_framing(struct trf7970a *trf, int framing)
|
||||
trf->iso_ctrl = iso_ctrl;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_MODULATOR_SYS_CLK_CTRL,
|
||||
trf->modulator_sys_clk_ctrl);
|
||||
trf->modulator_sys_clk_ctrl);
|
||||
if (ret)
|
||||
return ret;
|
||||
}
|
||||
|
||||
if (!(trf->chip_status_ctrl & TRF7970A_CHIP_STATUS_RF_ON)) {
|
||||
ret = trf7970a_write(trf, TRF7970A_CHIP_STATUS_CTRL,
|
||||
trf->chip_status_ctrl |
|
||||
TRF7970A_CHIP_STATUS_RF_ON);
|
||||
trf->chip_status_ctrl |
|
||||
TRF7970A_CHIP_STATUS_RF_ON);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1697,7 +1696,7 @@ static int trf7970a_tg_config_framing(struct trf7970a *trf, int framing)
|
||||
}
|
||||
|
||||
static int trf7970a_tg_configure_hw(struct nfc_digital_dev *ddev, int type,
|
||||
int param)
|
||||
int param)
|
||||
{
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
int ret;
|
||||
@ -1709,7 +1708,7 @@ static int trf7970a_tg_configure_hw(struct nfc_digital_dev *ddev, int type,
|
||||
trf->is_initiator = false;
|
||||
|
||||
if ((trf->state == TRF7970A_ST_PWR_OFF) ||
|
||||
(trf->state == TRF7970A_ST_RF_OFF)) {
|
||||
(trf->state == TRF7970A_ST_RF_OFF)) {
|
||||
ret = trf7970a_switch_rf_on(trf);
|
||||
if (ret)
|
||||
goto err_unlock;
|
||||
@ -1733,7 +1732,8 @@ static int trf7970a_tg_configure_hw(struct nfc_digital_dev *ddev, int type,
|
||||
}
|
||||
|
||||
static int _trf7970a_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
|
||||
nfc_digital_cmd_complete_t cb, void *arg, bool mode_detect)
|
||||
nfc_digital_cmd_complete_t cb, void *arg,
|
||||
bool mode_detect)
|
||||
{
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
int ret;
|
||||
@ -1741,9 +1741,9 @@ static int _trf7970a_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
|
||||
mutex_lock(&trf->lock);
|
||||
|
||||
if ((trf->state != TRF7970A_ST_IDLE) &&
|
||||
(trf->state != TRF7970A_ST_IDLE_RX_BLOCKED)) {
|
||||
(trf->state != TRF7970A_ST_IDLE_RX_BLOCKED)) {
|
||||
dev_err(trf->dev, "%s - Bogus state: %d\n", __func__,
|
||||
trf->state);
|
||||
trf->state);
|
||||
ret = -EIO;
|
||||
goto out_err;
|
||||
}
|
||||
@ -1756,7 +1756,7 @@ static int _trf7970a_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
|
||||
}
|
||||
|
||||
trf->rx_skb = nfc_alloc_recv_skb(TRF7970A_RX_SKB_ALLOC_SIZE,
|
||||
GFP_KERNEL);
|
||||
GFP_KERNEL);
|
||||
if (!trf->rx_skb) {
|
||||
dev_dbg(trf->dev, "Can't alloc rx_skb\n");
|
||||
ret = -ENOMEM;
|
||||
@ -1764,25 +1764,25 @@ static int _trf7970a_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
|
||||
}
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_RX_SPECIAL_SETTINGS,
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_HBT |
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_M848 |
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_C424 |
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_C212);
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_HBT |
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_M848 |
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_C424 |
|
||||
TRF7970A_RX_SPECIAL_SETTINGS_C212);
|
||||
if (ret)
|
||||
goto out_err;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_REG_IO_CTRL,
|
||||
trf->io_ctrl | TRF7970A_REG_IO_CTRL_VRS(0x1));
|
||||
trf->io_ctrl | TRF7970A_REG_IO_CTRL_VRS(0x1));
|
||||
if (ret)
|
||||
goto out_err;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_NFC_LOW_FIELD_LEVEL,
|
||||
TRF7970A_NFC_LOW_FIELD_LEVEL_RFDET(0x3));
|
||||
TRF7970A_NFC_LOW_FIELD_LEVEL_RFDET(0x3));
|
||||
if (ret)
|
||||
goto out_err;
|
||||
|
||||
ret = trf7970a_write(trf, TRF7970A_NFC_TARGET_LEVEL,
|
||||
TRF7970A_NFC_TARGET_LEVEL_RFDET(0x7));
|
||||
TRF7970A_NFC_TARGET_LEVEL_RFDET(0x7));
|
||||
if (ret)
|
||||
goto out_err;
|
||||
|
||||
@ -1807,32 +1807,33 @@ static int _trf7970a_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
|
||||
}
|
||||
|
||||
static int trf7970a_tg_listen(struct nfc_digital_dev *ddev, u16 timeout,
|
||||
nfc_digital_cmd_complete_t cb, void *arg)
|
||||
nfc_digital_cmd_complete_t cb, void *arg)
|
||||
{
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
|
||||
dev_dbg(trf->dev, "Listen - state: %d, timeout: %d ms\n",
|
||||
trf->state, timeout);
|
||||
trf->state, timeout);
|
||||
|
||||
return _trf7970a_tg_listen(ddev, timeout, cb, arg, false);
|
||||
}
|
||||
|
||||
static int trf7970a_tg_listen_md(struct nfc_digital_dev *ddev,
|
||||
u16 timeout, nfc_digital_cmd_complete_t cb, void *arg)
|
||||
u16 timeout, nfc_digital_cmd_complete_t cb,
|
||||
void *arg)
|
||||
{
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
int ret;
|
||||
|
||||
dev_dbg(trf->dev, "Listen MD - state: %d, timeout: %d ms\n",
|
||||
trf->state, timeout);
|
||||
trf->state, timeout);
|
||||
|
||||
ret = trf7970a_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_RF_TECH,
|
||||
NFC_DIGITAL_RF_TECH_106A);
|
||||
NFC_DIGITAL_RF_TECH_106A);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
ret = trf7970a_tg_configure_hw(ddev, NFC_DIGITAL_CONFIG_FRAMING,
|
||||
NFC_DIGITAL_FRAMING_NFCA_NFC_DEP);
|
||||
NFC_DIGITAL_FRAMING_NFCA_NFC_DEP);
|
||||
if (ret)
|
||||
return ret;
|
||||
|
||||
@ -1844,7 +1845,7 @@ static int trf7970a_tg_get_rf_tech(struct nfc_digital_dev *ddev, u8 *rf_tech)
|
||||
struct trf7970a *trf = nfc_digital_get_drvdata(ddev);
|
||||
|
||||
dev_dbg(trf->dev, "Get RF Tech - state: %d, rf_tech: %d\n",
|
||||
trf->state, trf->md_rf_tech);
|
||||
trf->state, trf->md_rf_tech);
|
||||
|
||||
*rf_tech = trf->md_rf_tech;
|
||||
|
||||
@ -1933,20 +1934,19 @@ static int trf7970a_power_down(struct trf7970a *trf)
|
||||
|
||||
if (trf->state != TRF7970A_ST_RF_OFF) {
|
||||
dev_dbg(trf->dev, "Can't power down - not RF_OFF state (%d)\n",
|
||||
trf->state);
|
||||
trf->state);
|
||||
return -EBUSY;
|
||||
}
|
||||
|
||||
gpiod_set_value_cansleep(trf->en_gpiod, 0);
|
||||
|
||||
if (trf->en2_gpiod &&
|
||||
!(trf->quirks & TRF7970A_QUIRK_EN2_MUST_STAY_LOW))
|
||||
if (trf->en2_gpiod && !(trf->quirks & TRF7970A_QUIRK_EN2_MUST_STAY_LOW))
|
||||
gpiod_set_value_cansleep(trf->en2_gpiod, 0);
|
||||
|
||||
ret = regulator_disable(trf->regulator);
|
||||
if (ret)
|
||||
dev_err(trf->dev, "%s - Can't disable VIN: %d\n", __func__,
|
||||
ret);
|
||||
ret);
|
||||
|
||||
trf->state = TRF7970A_ST_PWR_OFF;
|
||||
|
||||
@ -2060,16 +2060,16 @@ static int trf7970a_probe(struct spi_device *spi)
|
||||
|
||||
of_property_read_u32(np, "clock-frequency", &clk_freq);
|
||||
if ((clk_freq != TRF7970A_27MHZ_CLOCK_FREQUENCY) ||
|
||||
(clk_freq != TRF7970A_13MHZ_CLOCK_FREQUENCY)) {
|
||||
(clk_freq != TRF7970A_13MHZ_CLOCK_FREQUENCY)) {
|
||||
dev_err(trf->dev,
|
||||
"clock-frequency (%u Hz) unsupported\n",
|
||||
clk_freq);
|
||||
"clock-frequency (%u Hz) unsupported\n", clk_freq);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ret = devm_request_threaded_irq(trf->dev, spi->irq, NULL,
|
||||
trf7970a_irq, IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
||||
"trf7970a", trf);
|
||||
trf7970a_irq,
|
||||
IRQF_TRIGGER_RISING | IRQF_ONESHOT,
|
||||
"trf7970a", trf);
|
||||
if (ret) {
|
||||
dev_err(trf->dev, "Can't request IRQ#%d: %d\n", spi->irq, ret);
|
||||
return ret;
|
||||
@ -2114,9 +2114,10 @@ static int trf7970a_probe(struct spi_device *spi)
|
||||
}
|
||||
|
||||
trf->ddev = nfc_digital_allocate_device(&trf7970a_nfc_ops,
|
||||
TRF7970A_SUPPORTED_PROTOCOLS,
|
||||
NFC_DIGITAL_DRV_CAPS_IN_CRC |
|
||||
NFC_DIGITAL_DRV_CAPS_TG_CRC, 0, 0);
|
||||
TRF7970A_SUPPORTED_PROTOCOLS,
|
||||
NFC_DIGITAL_DRV_CAPS_IN_CRC |
|
||||
NFC_DIGITAL_DRV_CAPS_TG_CRC, 0,
|
||||
0);
|
||||
if (!trf->ddev) {
|
||||
dev_err(trf->dev, "Can't allocate NFC digital device\n");
|
||||
ret = -ENOMEM;
|
||||
@ -2139,7 +2140,7 @@ static int trf7970a_probe(struct spi_device *spi)
|
||||
ret = nfc_digital_register_device(trf->ddev);
|
||||
if (ret) {
|
||||
dev_err(trf->dev, "Can't register NFC digital device: %d\n",
|
||||
ret);
|
||||
ret);
|
||||
goto err_shutdown;
|
||||
}
|
||||
|
||||
@ -2248,29 +2249,31 @@ static int trf7970a_pm_runtime_resume(struct device *dev)
|
||||
static const struct dev_pm_ops trf7970a_pm_ops = {
|
||||
SET_SYSTEM_SLEEP_PM_OPS(trf7970a_suspend, trf7970a_resume)
|
||||
SET_RUNTIME_PM_OPS(trf7970a_pm_runtime_suspend,
|
||||
trf7970a_pm_runtime_resume, NULL)
|
||||
trf7970a_pm_runtime_resume, NULL)
|
||||
};
|
||||
|
||||
static const struct of_device_id trf7970a_of_match[] = {
|
||||
{ .compatible = "ti,trf7970a", },
|
||||
{.compatible = "ti,trf7970a",},
|
||||
{},
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(of, trf7970a_of_match);
|
||||
|
||||
static const struct spi_device_id trf7970a_id_table[] = {
|
||||
{ "trf7970a", 0 },
|
||||
{ }
|
||||
{"trf7970a", 0},
|
||||
{}
|
||||
};
|
||||
|
||||
MODULE_DEVICE_TABLE(spi, trf7970a_id_table);
|
||||
|
||||
static struct spi_driver trf7970a_spi_driver = {
|
||||
.probe = trf7970a_probe,
|
||||
.remove = trf7970a_remove,
|
||||
.id_table = trf7970a_id_table,
|
||||
.driver = {
|
||||
.name = "trf7970a",
|
||||
.of_match_table = of_match_ptr(trf7970a_of_match),
|
||||
.pm = &trf7970a_pm_ops,
|
||||
.driver = {
|
||||
.name = "trf7970a",
|
||||
.of_match_table = of_match_ptr(trf7970a_of_match),
|
||||
.pm = &trf7970a_pm_ops,
|
||||
},
|
||||
};
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user