@@ -101,7 +101,7 @@ struct cmd {
unsigned char cmd_id;
unsigned char no_cmd_params;
unsigned char cmd_params[MAX_CMD_PARAMS];
- enum req_type req;
+ bool is_sync;
};
struct param_list {
@@ -134,63 +134,62 @@ static const struct cmd cmd_array[] = {
.cmd_len = 0x2,
.cmd_id = ECHO_CMD,
.no_cmd_params = 0,
- .req = SYNC,
+ .is_sync = true,
},
[CMD_ISO14443A_CONFIG] = {
.cmd_len = 0x7,
.cmd_id = WRITE_REGISTER_CMD,
.no_cmd_params = 0x4,
.cmd_params = {0x3A, 0x00, 0x5A, 0x04},
- .req = SYNC,
+ .is_sync = true,
},
[CMD_ISO14443A_DEMOGAIN] = {
.cmd_len = 0x7,
.cmd_id = WRITE_REGISTER_CMD,
.no_cmd_params = 0x4,
.cmd_params = {0x68, 0x01, 0x01, 0xDF},
- .req = SYNC,
+ .is_sync = true,
},
[CMD_ISO14443B_DEMOGAIN] = {
.cmd_len = 0x7,
.cmd_id = WRITE_REGISTER_CMD,
.no_cmd_params = 0x4,
.cmd_params = {0x68, 0x01, 0x01, 0x51},
- .req = SYNC,
+ .is_sync = true,
},
[CMD_ISO14443A_PROTOCOL_SELECT] = {
.cmd_len = 0x7,
.cmd_id = PROTOCOL_SELECT_CMD,
.no_cmd_params = 0x4,
.cmd_params = {ISO14443A_PROTOCOL_CODE, 0x00, 0x01, 0xA0},
- .req = SYNC,
+ .is_sync = true,
},
[CMD_ISO14443B_PROTOCOL_SELECT] = {
.cmd_len = 0x7,
.cmd_id = PROTOCOL_SELECT_CMD,
.no_cmd_params = 0x4,
.cmd_params = {ISO14443B_PROTOCOL_CODE, 0x01, 0x03, 0xFF},
- .req = SYNC,
+ .is_sync = true,
},
[CMD_WTX_RESPONSE] = {
.cmd_len = 0x6,
.cmd_id = SEND_RECEIVE_CMD,
.no_cmd_params = 0x3,
.cmd_params = {0xF2, 0x00, TRFLAG_NFCA_STD_FRAME_CRC},
- .req = ASYNC,
},
[CMD_FIELD_OFF] = {
.cmd_len = 0x5,
.cmd_id = PROTOCOL_SELECT_CMD,
.no_cmd_params = 0x2,
.cmd_params = {0x0, 0x0},
- .req = SYNC,
+ .is_sync = true,
},
[CMD_ISO15693_PROTOCOL_SELECT] = {
.cmd_len = 0x5,
.cmd_id = PROTOCOL_SELECT_CMD,
.no_cmd_params = 0x2,
.cmd_params = {ISO15693_PROTOCOL_CODE, 0x0D},
- .req = SYNC,
+ .is_sync = true,
},
};
@@ -279,13 +278,13 @@ static int st95hf_send_recv_cmd(struct st95hf_context *st95context,
ret = st95hf_spi_send(&st95context->spicontext,
spi_cmd_buffer,
cmd_array[cmd].cmd_len,
- cmd_array[cmd].req);
+ cmd_array[cmd].is_sync);
if (ret) {
dev_err(dev, "st95hf_spi_send failed with error %d\n", ret);
return ret;
}
- if (cmd_array[cmd].req == SYNC && recv_res) {
+ if (cmd_array[cmd].is_sync && recv_res) {
unsigned char st95hf_response_arr[2];
ret = st95hf_spi_recv_response(&st95context->spicontext,
@@ -480,10 +479,8 @@ static int st95hf_send_spi_reset_sequence(struct st95hf_context *st95context)
int result = 0;
unsigned char reset_cmd = ST95HF_COMMAND_RESET;
- result = st95hf_spi_send(&st95context->spicontext,
- &reset_cmd,
- ST95HF_RESET_CMD_LEN,
- ASYNC);
+ result = st95hf_spi_send(&st95context->spicontext, &reset_cmd,
+ ST95HF_RESET_CMD_LEN, false);
if (result) {
dev_err(&st95context->spicontext.spidev->dev,
"spi reset sequence cmd error = %d", result);
@@ -932,8 +929,7 @@ static int st95hf_in_send_cmd(struct nfc_digital_dev *ddev,
stcontext->complete_cb_arg.rats = true;
rc = st95hf_spi_send(&stcontext->spicontext, skb->data,
- skb->len,
- ASYNC);
+ skb->len, false);
if (rc) {
dev_err(&stcontext->nfcdev->dev,
"Error %d trying to perform data_exchange", rc);
@@ -1168,10 +1164,8 @@ static int st95hf_remove(struct spi_device *nfc_spi_dev)
mutex_unlock(&stcontext->rm_lock);
/* next reset the ST95HF controller */
- result = st95hf_spi_send(&stcontext->spicontext,
- &reset_cmd,
- ST95HF_RESET_CMD_LEN,
- ASYNC);
+ result = st95hf_spi_send(&stcontext->spicontext, &reset_cmd,
+ ST95HF_RESET_CMD_LEN, false);
if (result) {
dev_err(&spictx->spidev->dev,
"ST95HF reset failed in remove() err = %d\n", result);
@@ -23,7 +23,7 @@
int st95hf_spi_send(struct st95hf_spi_context *spicontext,
unsigned char *buffertx,
int datalen,
- enum req_type reqtype)
+ bool is_sync)
{
struct spi_message m;
int result = 0;
@@ -35,12 +35,10 @@ int st95hf_spi_send(struct st95hf_spi_context *spicontext,
mutex_lock(&spicontext->spi_lock);
- if (reqtype == SYNC) {
- spicontext->req_issync = true;
+ spicontext->req_issync = is_sync;
+
+ if (is_sync)
reinit_completion(&spicontext->done);
- } else {
- spicontext->req_issync = false;
- }
spi_message_init(&m);
spi_message_add_tail(&tx_transfer, &m);
@@ -52,7 +50,7 @@ int st95hf_spi_send(struct st95hf_spi_context *spicontext,
}
/* return for asynchronous or no-wait case */
- if (reqtype == ASYNC) {
+ if (!is_sync) {
mutex_unlock(&spicontext->spi_lock);
return 0;
}
@@ -44,16 +44,10 @@ struct st95hf_spi_context {
struct mutex spi_lock;
};
-/* flag to differentiate synchronous & asynchronous spi request */
-enum req_type {
- SYNC,
- ASYNC,
-};
-
int st95hf_spi_send(struct st95hf_spi_context *spicontext,
unsigned char *buffertx,
int datalen,
- enum req_type reqtype);
+ bool is_sync);
int st95hf_spi_recv_response(struct st95hf_spi_context *spicontext,
unsigned char *receivebuff);
Keep the information whether a command is asynchronous in a boolean flag like it is done elsewhere in the code. This way, the enum can go away. No function change intended. Signed-off-by: Daniel Mack <daniel@zonque.org> --- drivers/nfc/st95hf/core.c | 38 ++++++++++++++++---------------------- drivers/nfc/st95hf/spi.c | 12 +++++------- drivers/nfc/st95hf/spi.h | 8 +------- 3 files changed, 22 insertions(+), 36 deletions(-)