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appa-55ii: Coding style fixes.

This commit is contained in:
Bert Vermeulen 2013-12-23 01:53:30 +01:00
parent 81a9ab725f
commit 7574e58c1a
2 changed files with 114 additions and 59 deletions
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30
hardware/appa-55ii/api.c
View File

@ -53,13 +53,17 @@ static GSList *scan(GSList *options)
struct sr_serial_dev_inst *serial;
struct sr_dev_inst *sdi;
struct sr_probe *probe;
GSList *devices = NULL, *l;
const char *conn = NULL, *serialcomm = NULL;
struct sr_config *src;
GSList *devices, *l;
const char *conn, *serialcomm;
uint8_t buf[50];
size_t len = sizeof(buf);
size_t len;
len = sizeof(buf);
devices = NULL;
conn = serialcomm = NULL;
for (l = options; l; l = l->next) {
struct sr_config *src = l->data;
src = l->data;
switch (src->key) {
case SR_CONF_CONN:
conn = g_variant_get_string(src->data, NULL);
@ -87,7 +91,7 @@ static GSList *scan(GSList *options)
/* Let's get a bit of data and see if we can find a packet. */
if (serial_stream_detect(serial, buf, &len, 25,
appa_55ii_packet_valid, 500, 9600) != SR_OK)
appa_55ii_packet_valid, 500, 9600) != SR_OK)
goto scan_cleanup;
sr_info("Found device on port %s.", conn);
@ -139,7 +143,7 @@ static int cleanup(void)
}
static int config_get(int key, GVariant **data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
const struct sr_probe_group *probe_group)
{
struct dev_context *devc = sdi->priv;
@ -166,6 +170,8 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
const struct sr_probe_group *probe_group)
{
struct dev_context *devc;
const char *tmp_str;
unsigned int i;
(void)probe_group;
@ -187,9 +193,8 @@ static int config_set(int key, GVariant *data, const struct sr_dev_inst *sdi,
sr_dbg("Setting time limit to %" PRIu64 "ms.", devc->limit_msec);
break;
case SR_CONF_DATA_SOURCE: {
const char *tmp_str = g_variant_get_string(data, NULL);
unsigned int i;
for (i=0; i<ARRAY_SIZE(data_sources); i++)
tmp_str = g_variant_get_string(data, NULL);
for (i = 0; i < ARRAY_SIZE(data_sources); i++)
if (!strcmp(tmp_str, data_sources[i])) {
devc->data_source = i;
break;
@ -231,11 +236,12 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
}
static int dev_acquisition_start(const struct sr_dev_inst *sdi,
void *cb_data)
void *cb_data)
{
struct sr_serial_dev_inst *serial = sdi->conn;
struct sr_serial_dev_inst *serial;
struct dev_context *devc;
serial = sdi->conn;
if (sdi->status != SR_ST_ACTIVE)
return SR_ERR_DEV_CLOSED;
@ -266,7 +272,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi,
static int dev_acquisition_stop(struct sr_dev_inst *sdi, void *cb_data)
{
return std_serial_dev_acquisition_stop(sdi, cb_data, std_serial_dev_close,
sdi->conn, LOG_PREFIX);
sdi->conn, LOG_PREFIX);
}
SR_PRIV struct sr_dev_driver appa_55ii_driver_info = {

143
hardware/appa-55ii/protocol.c
View File

@ -31,63 +31,84 @@ typedef enum {
static gboolean appa_55ii_checksum(const uint8_t *buf)
{
int i, size = buf[3]+4, checksum = 0;
for (i=0; i<size; i++)
int i, size, checksum;
size = buf[3] + 4;
checksum = 0;
for (i = 0; i < size; i++)
checksum += buf[i];
return buf[size] == (checksum & 0xFF);
}
SR_PRIV gboolean appa_55ii_packet_valid(const uint8_t *buf)
{
if (buf[0] == 0x55 && buf[1] == 0x55 && buf[3] <= 32
&& appa_55ii_checksum(buf))
&& appa_55ii_checksum(buf))
return TRUE;
return FALSE;
}
static uint64_t appa_55ii_flags(const uint8_t *buf)
{
uint8_t disp_mode = buf[4+13];
uint64_t flags = 0;
uint8_t disp_mode;
uint64_t flags;
if ((disp_mode & 0xF0) == 0x20) flags |= SR_MQFLAG_HOLD;
if ((disp_mode & 0x0C) == 0x04) flags |= SR_MQFLAG_MAX;
if ((disp_mode & 0x0C) == 0x08) flags |= SR_MQFLAG_MIN;
if ((disp_mode & 0x0C) == 0x0C) flags |= SR_MQFLAG_AVG;
disp_mode = buf[4 + 13];
flags = 0;
if ((disp_mode & 0xF0) == 0x20)
flags |= SR_MQFLAG_HOLD;
if ((disp_mode & 0x0C) == 0x04)
flags |= SR_MQFLAG_MAX;
if ((disp_mode & 0x0C) == 0x08)
flags |= SR_MQFLAG_MIN;
if ((disp_mode & 0x0C) == 0x0C)
flags |= SR_MQFLAG_AVG;
return flags;
}
static float appa_55ii_temp(const uint8_t *buf, int probe)
{
const uint8_t *ptr = buf + 4 + 14 + 3*probe;
int16_t temp = RL16(ptr);
uint8_t flags = ptr[2];
const uint8_t *ptr;
int16_t temp;
uint8_t flags;
if (flags & 0x60) return INFINITY;
else if (flags & 1) return (float)temp / 10;
else return (float)temp;
ptr = buf + 4 + 14 + 3 * probe;
temp = RL16(ptr);
flags = ptr[2];
if (flags & 0x60)
return INFINITY;
else if (flags & 1)
return (float)temp / 10;
else
return (float)temp;
}
static void appa_55ii_live_data(struct sr_dev_inst *sdi, const uint8_t *buf)
{
struct dev_context *devc = sdi->priv;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog analog = { 0 };
float values[APPA_55II_NUM_PROBES], *val_ptr = values;
struct sr_datafeed_analog analog;
struct sr_probe *probe;
float values[APPA_55II_NUM_PROBES], *val_ptr;
int i;
if (devc->data_source != DATA_SOURCE_LIVE)
return;
val_ptr = values;
memset(&analog, 0, sizeof(analog));
analog.num_samples = 1;
analog.mq = SR_MQ_TEMPERATURE;
analog.unit = SR_UNIT_CELSIUS;
analog.mqflags = appa_55ii_flags(buf);
analog.data = values;
for (i=0; i<APPA_55II_NUM_PROBES; i++) {
struct sr_probe *probe = g_slist_nth_data(sdi->probes, i);
for (i = 0; i < APPA_55II_NUM_PROBES; i++) {
probe = g_slist_nth_data(sdi->probes, i);
if (!probe->enabled)
continue;
analog.probes = g_slist_append(analog.probes, probe);
@ -104,33 +125,42 @@ static void appa_55ii_live_data(struct sr_dev_inst *sdi, const uint8_t *buf)
static void appa_55ii_log_metadata(struct sr_dev_inst *sdi, const uint8_t *buf)
{
struct dev_context *devc = sdi->priv;
struct dev_context *devc;
devc = sdi->priv;
devc->num_log_records = (buf[5] << 8) + buf[4];
}
static void appa_55ii_log_data_parse(struct sr_dev_inst *sdi)
{
struct dev_context *devc = sdi->priv;
int offset = 0;
struct dev_context *devc;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog analog = { 0 };
struct sr_probe *probe;
float values[APPA_55II_NUM_PROBES], *val_ptr;
const uint8_t *buf;
int16_t temp;
int offset, i;
devc = sdi->priv;
offset = 0;
while (devc->log_buf_len >= 20 && devc->num_log_records > 0) {
const uint8_t *buf = devc->log_buf + offset;
struct sr_datafeed_packet packet;
struct sr_datafeed_analog analog = { 0 };
float values[APPA_55II_NUM_PROBES], *val_ptr = values;
int i;
buf = devc->log_buf + offset;
val_ptr = values;
/* FIXME: timestamp should be sent in the packet */
sr_dbg("Timestamp: %02d:%02d:%02d", buf[2], buf[3], buf[4]);
memset(&analog, 0, sizeof(analog));
analog.num_samples = 1;
analog.mq = SR_MQ_TEMPERATURE;
analog.unit = SR_UNIT_CELSIUS;
analog.data = values;
for (i=0; i<APPA_55II_NUM_PROBES; i++) {
int16_t temp = RL16(buf+12+2*i);
struct sr_probe *probe = g_slist_nth_data(sdi->probes, i);
for (i = 0; i < APPA_55II_NUM_PROBES; i++) {
temp = RL16(buf + 12 + 2 * i);
probe = g_slist_nth_data(sdi->probes, i);
if (!probe->enabled)
continue;
analog.probes = g_slist_append(analog.probes, probe);
@ -153,15 +183,19 @@ static void appa_55ii_log_data_parse(struct sr_dev_inst *sdi)
static void appa_55ii_log_data(struct sr_dev_inst *sdi, const uint8_t *buf)
{
struct dev_context *devc = sdi->priv;
const uint8_t *ptr = buf + 4;;
unsigned int size = buf[3];
struct dev_context *devc;
const uint8_t *ptr;
unsigned int size;
int s;
devc = sdi->priv;
if (devc->data_source != DATA_SOURCE_MEMORY)
return;
ptr = buf + 4;;
size = buf[3];
while (size > 0) {
int s = MIN(size, sizeof(devc->log_buf) - devc->log_buf_len);
s = MIN(size, sizeof(devc->log_buf) - devc->log_buf_len);
memcpy(devc->log_buf + devc->log_buf_len, ptr, s);
devc->log_buf_len += s;
size -= s;
@ -173,8 +207,9 @@ static void appa_55ii_log_data(struct sr_dev_inst *sdi, const uint8_t *buf)
static void appa_55ii_log_end(struct sr_dev_inst *sdi)
{
struct dev_context *devc = sdi->priv;
struct dev_context *devc;
devc = sdi->priv;
if (devc->data_source != DATA_SOURCE_MEMORY)
return;
@ -182,26 +217,39 @@ static void appa_55ii_log_end(struct sr_dev_inst *sdi)
}
static const uint8_t *appa_55ii_parse_data(struct sr_dev_inst *sdi,
const uint8_t *buf, int len)
const uint8_t *buf, int len)
{
if (len < 5)
return NULL; /* need more data */
/* Need more data. */
return NULL;
if (buf[0] != 0x55 || buf[1] != 0x55)
return buf + 1; /* try to re-synchronize on a packet start */
/* Try to re-synchronize on a packet start. */
return buf + 1;
if (len < 5+buf[3])
return NULL; /* need more data */
if (len < 5 + buf[3])
/* Need more data. */
return NULL;
if (!appa_55ii_checksum(buf))
return buf + 4 + buf[3] + 1; /* skip broken packet */
/* Skip broken packet. */
return buf + 4 + buf[3] + 1;
switch ((PacketType) buf[2]) {
case LIVE_DATA: appa_55ii_live_data(sdi, buf); break;
case LOG_METADATA: appa_55ii_log_metadata(sdi, buf); break;
case LOG_DATA: appa_55ii_log_data(sdi, buf); break;
case LOG_START: break;
case LOG_END: appa_55ii_log_end(sdi); break;
case LIVE_DATA:
appa_55ii_live_data(sdi, buf);
break;
case LOG_METADATA:
appa_55ii_log_metadata(sdi, buf);
break;
case LOG_DATA:
appa_55ii_log_data(sdi, buf);
break;
case LOG_START:
break;
case LOG_END:
appa_55ii_log_end(sdi);
break;
}
return buf + 4 + buf[3] + 1;
@ -212,6 +260,7 @@ SR_PRIV int appa_55ii_receive_data(int fd, int revents, void *cb_data)
struct sr_dev_inst *sdi;
struct dev_context *devc;
struct sr_serial_dev_inst *serial;
int64_t time;
const uint8_t *ptr, *next_ptr, *end_ptr;
int len;
@ -253,7 +302,7 @@ SR_PRIV int appa_55ii_receive_data(int fd, int revents, void *cb_data)
}
if (devc->limit_msec) {
int64_t time = (g_get_monotonic_time() - devc->start_time) / 1000;
time = (g_get_monotonic_time() - devc->start_time) / 1000;
if (time > (int64_t)devc->limit_msec) {
sr_info("Requested time limit reached.");
sdi->driver->dev_acquisition_stop(sdi, devc->session_cb_data);