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Port i2s, spi_master, and ledc to helper functions for option tables (#2577) 

* opt_checkint_range: extend range check to default value

* opt_checklstring added

* i2s: rework luaM_ and option table handling

* spi_master: rework option tables handling

* ledc: rework option tables handling
This commit is contained in:
Arnim Läuger 2018-12-02 16:20:45 +01:00 committed by GitHub
parent 3257e557d4
commit ab32ad2a67
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 88 additions and 126 deletions
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19
components/modules/common.c
View File

@ -49,17 +49,17 @@ int opt_checkint(lua_State *L, const char *name, int default_val)
int opt_checkint_range(lua_State *L, const char *name, int default_val, int min_val, int max_val)
{
int result = default_val;
if (opt_get(L, name, LUA_TNUMBER)) {
int result = lua_tointeger(L, -1);
result = lua_tointeger(L, -1);
lua_pop(L, 1);
}
if (!(result >= min_val && result <= max_val)) {
const char* msg = lua_pushfstring(L, "must be in range %d-%d", min_val, max_val);
opt_error(L, name, msg);
}
return result;
} else {
return default_val;
}
}
bool opt_checkbool(lua_State *L, const char *name, bool default_val)
@ -72,3 +72,14 @@ bool opt_checkbool(lua_State *L, const char *name, bool default_val)
return default_val;
}
}
const char *opt_checklstring(lua_State *L, const char *name, const char *default_val, size_t *l)
{
if (opt_get(L, name, LUA_TSTRING)) {
const char *result = lua_tolstring(L, -1, l);
lua_pop(L, 1);
return result;
} else {
return default_val;
}
}

11
components/modules/common.h
View File

@ -20,6 +20,17 @@ int opt_checkint_range(lua_State *L, const char *name, int default_val, int min_
*/
bool opt_checkbool(lua_State *L, const char *name, bool default_val);
/* Fetch an optional string from a table on the top of the stack. If the
option name is not present or the table is nil, returns default_val. Errors
if the key name is present in the table but is not a string.
Note that l is updated with the string length only when the option name
resolves to a string. It is not updated when default_val is returned since
it is not possible to determine the length of default_val in case it contains
embedded \0.
*/
const char *opt_checklstring(lua_State *L, const char *name, const char *default_val, size_t *l);
/* Like luaL_argerror() but producing a more suitable error message */
int opt_error(lua_State *L, const char* name, const char *extramsg);

55
components/modules/i2s.c
View File

@ -17,6 +17,8 @@
#include "driver/i2s.h"
#include "common.h"
#define MAX_I2C_NUM 2
#define I2S_CHECK_ID(id) if(id >= MAX_I2C_NUM) luaL_error( L, "i2s not exists" )
@ -139,48 +141,29 @@ static int node_i2s_start( lua_State *L )
i2s_pin_config_t pin_config;
memset( &pin_config, 0, sizeof( pin_config ) );
lua_getfield (L, 2, "mode");
i2s_config.mode = luaL_optint(L, -1, I2S_MODE_MASTER | I2S_MODE_TX);
// temporarily copy option table to top of stack for opt_ functions
lua_pushvalue(L, 2);
i2s_config.mode = opt_checkint(L, "mode", I2S_MODE_MASTER | I2S_MODE_TX);
i2s_config.sample_rate = opt_checkint_range(L, "rate", 44100, 1000, MAX_INT);
//
lua_getfield (L, 2, "rate");
i2s_config.sample_rate = luaL_optint(L, -1, 44100);
//
lua_getfield (L, 2, "bits");
is->data_bits_per_sample = luaL_optint(L, -1, 16);
is->data_bits_per_sample = opt_checkint(L, "bits", 16);
is->i2s_bits_per_sample = is->data_bits_per_sample < I2S_BITS_PER_SAMPLE_16BIT ? I2S_BITS_PER_SAMPLE_16BIT : is->data_bits_per_sample;
i2s_config.bits_per_sample = is->i2s_bits_per_sample;
//
lua_getfield (L, 2, "channel");
i2s_config.channel_format = luaL_optint(L, -1, I2S_CHANNEL_FMT_RIGHT_LEFT);
//
lua_getfield (L, 2, "format");
i2s_config.communication_format = luaL_optint(L, -1, I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB);
//
lua_getfield (L, 2, "buffer_count");
i2s_config.dma_buf_count = luaL_optint(L, -1, 2);
//
lua_getfield (L, 2, "buffer_len");
i2s_config.dma_buf_len = luaL_optint(L, -1, i2s_config.sample_rate / 100);
//
i2s_config.channel_format = opt_checkint(L, "channel", I2S_CHANNEL_FMT_RIGHT_LEFT);
i2s_config.communication_format = opt_checkint(L, "format", I2S_COMM_FORMAT_I2S | I2S_COMM_FORMAT_I2S_MSB);
i2s_config.dma_buf_count = opt_checkint_range(L, "buffer_count", 2, 2, 128);
i2s_config.dma_buf_len = opt_checkint_range(L, "buffer_len", i2s_config.sample_rate / 100, 8, 1024);
i2s_config.intr_alloc_flags = ESP_INTR_FLAG_LEVEL1;
//
lua_getfield (L, 2, "bck_pin");
pin_config.bck_io_num = luaL_optint(L, -1, I2S_PIN_NO_CHANGE);
pin_config.bck_io_num = opt_checkint(L, "bck_pin", I2S_PIN_NO_CHANGE);
pin_config.ws_io_num = opt_checkint(L, "ws_pin", I2S_PIN_NO_CHANGE);
pin_config.data_out_num = opt_checkint(L, "data_out_pin", I2S_PIN_NO_CHANGE);
pin_config.data_in_num = opt_checkint(L, "data_in_pin", I2S_PIN_NO_CHANGE);
//
lua_getfield (L, 2, "ws_pin");
pin_config.ws_io_num = luaL_optint(L, -1, I2S_PIN_NO_CHANGE);
i2s_dac_mode_t dac_mode = opt_checkint_range(L, "dac_mode", I2S_DAC_CHANNEL_DISABLE, 0, I2S_DAC_CHANNEL_MAX-1);
//
lua_getfield (L, 2, "data_out_pin");
pin_config.data_out_num = luaL_optint(L, -1, I2S_PIN_NO_CHANGE);
//
lua_getfield (L, 2, "data_in_pin");
pin_config.data_in_num = luaL_optint(L, -1, I2S_PIN_NO_CHANGE);
//
lua_getfield(L, 2, "dac_mode");
i2s_dac_mode_t dac_mode = luaL_optint(L, -1, I2S_DAC_CHANNEL_DISABLE);
//
lua_getfield(L, 2, "adc1_channel");
adc1_channel_t adc1_channel = luaL_optint(L, -1, ADC1_CHANNEL_MAX);
adc1_channel_t adc1_channel = opt_checkint_range(L, "adc1_channel", ADC1_CHANNEL_MAX, ADC1_CHANNEL_0, ADC1_CHANNEL_MAX);
// handle optional callback functions TX and RX
lua_settop( L, top );
@ -278,7 +261,7 @@ static int node_i2s_read( lua_State *L )
int i2s_id = luaL_checkinteger( L, 1 );
I2S_CHECK_ID( i2s_id );
size_t bytes = luaL_checkinteger( L, 2 );
const size_t bytes = luaL_checkinteger( L, 2 );
int wait_ms = luaL_optint(L, 3, 0);
char * data = luaM_malloc( L, bytes );
size_t read;
@ -286,7 +269,7 @@ static int node_i2s_read( lua_State *L )
return luaL_error( L, "I2S driver error" );
lua_pushlstring(L, data, read);
luaM_free(L, data);
luaM_freemem(L, data, bytes);
return 1;
}

63
components/modules/ledc.c
View File

@ -6,6 +6,8 @@
#include "driver/ledc.h"
#include "common.h"
typedef struct {
int timer;
int channel;
@ -14,41 +16,19 @@ typedef struct {
static int lledc_new_channel( lua_State *L )
{
int t=1;
luaL_checkanytable (L, t);
const int top = lua_gettop(L);
luaL_checkanytable (L, 1);
/* Setup timer */
ledc_timer_config_t ledc_timer;
lua_getfield(L, t, "bits");
ledc_timer.duty_resolution = luaL_optint (L, -1, LEDC_TIMER_13_BIT);
if(ledc_timer.duty_resolution < LEDC_TIMER_10_BIT || ledc_timer.duty_resolution > LEDC_TIMER_15_BIT)
return luaL_error (L, "bits field out of range");
ledc_timer.duty_resolution = opt_checkint_range (L, "bits", LEDC_TIMER_13_BIT, 0, LEDC_TIMER_BIT_MAX-1);
lua_getfield(L, t, "frequency");
if (lua_type (L, -1) == LUA_TNUMBER) {
ledc_timer.freq_hz = luaL_checkinteger(L, -1);
} else {
return luaL_error(L, "missing or invalid 'frequency' field");
}
ledc_timer.freq_hz = opt_checkint_range(L, "frequency", -1, 1, 40000000UL);
lua_getfield(L, t, "mode");
if (lua_type (L, -1) == LUA_TNUMBER) {
ledc_timer.speed_mode = luaL_checkinteger(L, -1);
if(ledc_timer.speed_mode != LEDC_HIGH_SPEED_MODE && ledc_timer.speed_mode != LEDC_LOW_SPEED_MODE)
return luaL_error (L, "Invalid mode");
} else {
return luaL_error(L, "missing or invalid 'mode' field");
}
ledc_timer.speed_mode = opt_checkint_range(L, "mode", -1, 0, LEDC_SPEED_MODE_MAX-1);
lua_getfield(L, t, "timer");
if (lua_type (L, -1) == LUA_TNUMBER) {
ledc_timer.timer_num = luaL_checkinteger(L, -1);
if(ledc_timer.timer_num < LEDC_TIMER_0 || ledc_timer.timer_num > LEDC_TIMER_3)
return luaL_error (L, "Invalid timer");
} else {
return luaL_error(L, "missing or invalid 'timer' field");
}
ledc_timer.timer_num = opt_checkint_range(L, "timer", -1, 0, LEDC_TIMER_MAX-1);
/* Setup channel */
ledc_channel_config_t channel_config = {
@ -57,30 +37,13 @@ static int lledc_new_channel( lua_State *L )
.intr_type = LEDC_INTR_DISABLE
};
lua_getfield(L, t, "channel");
if (lua_type (L, -1) == LUA_TNUMBER) {
channel_config.channel = luaL_checkinteger(L, -1);
if(channel_config.channel < LEDC_CHANNEL_0 || channel_config.channel > LEDC_CHANNEL_7)
return luaL_error (L, "Invalid channel");
} else {
return luaL_error(L, "missing or invalid 'channel' field");
}
channel_config.channel = opt_checkint_range(L, "channel", -1, 0, LEDC_CHANNEL_MAX-1);
lua_getfield(L, t, "duty");
if (lua_type (L, -1) == LUA_TNUMBER) {
channel_config.duty = luaL_checkinteger(L, -1);
} else {
return luaL_error(L, "missing or invalid 'duty' field");
}
channel_config.duty = opt_checkint_range(L, "duty", -1, 0, 1<<(LEDC_TIMER_BIT_MAX-1));
lua_getfield(L, t, "gpio");
if (lua_type (L, -1) == LUA_TNUMBER) {
channel_config.gpio_num = luaL_checkinteger(L, -1);
if(!GPIO_IS_VALID_GPIO(channel_config.gpio_num))
return luaL_error (L, "Invalid gpio");
} else {
return luaL_error(L, "missing or invalid 'gpio' field");
}
channel_config.gpio_num = opt_checkint_range(L, "gpio", -1, 0, GPIO_NUM_MAX-1);
lua_settop(L, top);
esp_err_t timerErr = ledc_timer_config(&ledc_timer);
if(timerErr != ESP_OK)

56
components/modules/spi_master.c
View File

@ -12,6 +12,8 @@
#include "spi_common.h"
#include "common.h"
#define SPI_MASTER_TAG "spi.master"
#define UD_HOST_STR "spi.master"
@ -50,10 +52,6 @@ typedef struct {
#define GET_UD_DEVICE \
lspi_device_t *ud = (lspi_device_t *)luaL_checkudata( L, 1, UD_DEVICE_STR );
#define CONFIG_TRANS_FROM_FIELD(field) \
lua_getfield( L, stack, #field ); \
trans.field = luaL_optint( L, -1, 0 );
static int lspi_device_free( lua_State *L )
{
GET_UD_DEVICE;
@ -97,20 +95,21 @@ static int lspi_device_transfer( lua_State *L )
const char * const options[] = {"std", "dio", "qio"};
const uint32_t options_flags[] = {0, SPI_TRANS_MODE_DIO, SPI_TRANS_MODE_QIO};
CONFIG_TRANS_FROM_FIELD(cmd);
CONFIG_TRANS_FROM_FIELD(addr);
// temporarily copy option table to top of stack for opt_ functions
lua_pushvalue( L, stack );
//
lua_getfield( L, stack, "rxlen" );
rx_len = luaL_optint( L, -1, 0 );
trans.cmd = opt_checkint( L, "cmd", 0 );
trans.addr = opt_checkint( L, "addr", 0 );
//
lua_getfield( L, stack, "addr_mode" );
trans.flags |= luaL_optbool( L, -1, false ) ? SPI_TRANS_MODE_DIOQIO_ADDR : 0;
rx_len = opt_checkint( L, "rxlen", 0 );
//
trans.flags |= opt_checkbool( L, "addr_mode", false ) ? SPI_TRANS_MODE_DIOQIO_ADDR : 0;
//
lua_getfield( L, stack, "mode" );
trans.flags |= options_flags[ luaL_checkoption( L, -1, options[0], options ) ];
//
lua_getfield( L, stack, "txdata" );
data = luaL_optlstring( L, -1, "", &data_len );
data_len = 0;
data = opt_checklstring( L, "txdata", "", &data_len );
lua_settop( L, stack );
}
@ -194,15 +193,12 @@ static const LUA_REG_TYPE lspi_device_map[] = {
lspi_host_t *ud = (lspi_host_t *)luaL_checkudata( L, 1, UD_HOST_STR );
//
#define CONFIG_BUS_PIN_FROM_FIELD(pin) \
lua_getfield( L, stack, #pin ); \
config.pin ## _io_num = luaL_optint( L, -1, -1 );
config.pin ## _io_num = opt_checkint( L, #pin, -1 );
//
#define CONFIG_DEVICE_FROM_INT_FIELD(field) \
lua_getfield( L, stack, #field ); \
config.field = luaL_optint( L, -1, 0 );
config.field = opt_checkint( L, #field, 0 );
#define CONFIG_DEVICE_FROM_BOOL_FIELD(field, mask) \
lua_getfield( L, stack, #field ); \
config.flags |= luaL_optbool( L, -1, false ) ? mask : 0;
config.flags |= opt_checkbool( L, #field, false ) ? mask : 0;
static int lspi_host_free( lua_State *L )
{
@ -220,6 +216,7 @@ static int lspi_host_free( lua_State *L )
int lspi_master( lua_State *L )
{
int stack = 0;
int top = lua_gettop( L );
int host = luaL_checkint( L, ++stack );
luaL_argcheck( L,
@ -231,13 +228,15 @@ int lspi_master( lua_State *L )
spi_bus_config_t config;
memset( &config, 0, sizeof( config ) );
//
// temporarily copy option table to top of stack for opt_ functions
lua_pushvalue( L, stack );
CONFIG_BUS_PIN_FROM_FIELD(sclk);
CONFIG_BUS_PIN_FROM_FIELD(mosi);
CONFIG_BUS_PIN_FROM_FIELD(miso);
CONFIG_BUS_PIN_FROM_FIELD(quadwp);
CONFIG_BUS_PIN_FROM_FIELD(quadhd);
lua_pop( L, 5 );
lua_settop( L, top );
int use_dma = luaL_optint( L, ++stack, 1 );
luaL_argcheck( L, use_dma >= 0 && use_dma <= 2, stack, "out of range" );
@ -267,21 +266,16 @@ static int lspi_host_device( lua_State *L )
spi_device_interface_config_t config;
memset( &config, 0, sizeof( config ) );
// temporarily copy option table to top of stack for opt_ functions
lua_pushvalue( L, stack );
// mandatory fields
lua_getfield( L, stack, "cs" );
config.spics_io_num = luaL_optint( L, -1, -1 );
config.mode = (uint8_t)opt_checkint_range( L, "mode", -1, 0, 3 );
//
lua_getfield( L, stack, "mode" );
int mode = luaL_optint( L, -1, -1 );
luaL_argcheck( L, mode >= 0, stack, "mode setting missing" );
config.mode = (uint8_t)mode;
//
lua_getfield( L, stack, "freq" );
int freq = luaL_optint( L, -1, -1 );
luaL_argcheck( L, freq >= 0, stack, "freq setting missing" );
config.clock_speed_hz = freq;
config.clock_speed_hz = opt_checkint_range( L, "freq", -1, 0, SPI_MASTER_FREQ_80M );
//
// optional fields
config.spics_io_num = opt_checkint( L, "cs", -1 );
CONFIG_DEVICE_FROM_INT_FIELD(command_bits);
CONFIG_DEVICE_FROM_INT_FIELD(address_bits);
CONFIG_DEVICE_FROM_INT_FIELD(dummy_bits);