*
* This simple web server read the site's pages from SD card, and manage
* the cases where SD is not present or page not found, using embedded pages.
- * Quering from browser the /status page, the server return a json dictionary where are store
- * some board status info, like board temperature, up-time, etc.
+ * Quering from browser some cgi page, the server return a json dictionary.
*/
+#include "hw/hw_http.h"
#include "hw/hw_sd.h"
#include "hw/hw_adc.h"
#include "hw/hw_sdram.h"
+// Define logging setting (for cfg/log.h module).
+#define LOG_LEVEL 3
+#define LOG_VERBOSITY 0
+#include <cfg/log.h>
#include <cfg/debug.h>
#include <cpu/irq.h>
char local_ip[sizeof("123.123.123.123")];
char last_connected_ip[sizeof("123.123.123.123")];
uint16_t internal_temp;
- ticks_t up_time;
+ uint32_t up_time;
size_t tot_req;
} BoardStatus;
}
}
+/* Macro to unpack the ip addres from lwip format */
#define IP_ADDR_TO_INT_TUPLE(addr) \
(int)((addr) >> 0 & 0xff), \
(int)((addr) >> 8 & 0xff), \
(int)((addr) >> 24 & 0xff)
-static uint8_t tx_buf[1024];
+static uint8_t tx_buf[2048];
-static int cgi_status(char *revc_buf, struct netconn *client)
+/*
+ * Return a JSON string of board status.
+ */
+static int cgi_status(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
{
(void)revc_buf;
+ (void)revc_len;
+ (void)name;
//Update board status.
sprintf(status.last_connected_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->remote_ip.addr));
sprintf(status.local_ip, "%d.%d.%d.%d", IP_ADDR_TO_INT_TUPLE(client->pcb.ip->local_ip.addr));
- sprintf((char *)tx_buf, "[ %s, %s, %d.%d, %ld, %d ]", status.local_ip, status.last_connected_ip,
+ sprintf((char *)tx_buf, "[ \"%s\", \"%s\", %d.%d, %ld, %d ]", status.local_ip, status.last_connected_ip,
status.internal_temp / 10, status.internal_temp % 10,
status.up_time, status.tot_req);
return 0;
}
-static int cgi_logo(char *revc_buf, struct netconn *client)
+static int cgi_logo(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
{
(void)revc_buf;
+ (void)revc_len;
+ (void)name;
http_sendOk(client);
netconn_write(client, bertos_logo_jpg, bertos_logo_jpg_len, NETCONN_NOCOPY);
return 0;
}
-static int cgi_temp(char *revc_buf, struct netconn *client)
+/*
+ * Return the internal micro temperature string.
+ */
+static int cgi_temp(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
+
+ sprintf((char *)tx_buf, "[%d.%d]", status.internal_temp / 10, status.internal_temp % 10);
+
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+
+/*
+ * Return the board uptime.
+ */
+static int cgi_uptime(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
+
+
+
+ uint32_t m = status.up_time / 60;
+ uint32_t h = m / 60;
+ uint32_t s = status.up_time - (m * 60) - (h * 3600);
+
+ sprintf((char *)tx_buf, "[\"%ldh %ldm %lds\"]", h, m, s);
+
+ http_sendOk(client);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+ return 0;
+}
+
+/*
+ * Return the VR1 potentiometer voltage.
+ */
+static int cgi_resistor(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
{
(void)revc_buf;
+ (void)revc_len;
+ (void)name;
- sprintf((char *)tx_buf, "[ %d.%d ]", status.internal_temp / 10, status.internal_temp % 10);
+ uint16_t volt = ADC_RANGECONV(adc_read(1), 0, 3300);
+ sprintf((char *)tx_buf, "[ \"%d.%dV\" ]", volt / 1000, volt % 1000);
http_sendOk(client);
netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
return 0;
}
-static int cgi_echo(char *revc_buf, struct netconn *client)
+/*
+ * Reply to client the request string.
+ */
+static int cgi_led(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)name;
+
+ http_sendOk(client);
+ netconn_write(client, revc_buf, revc_len, NETCONN_COPY);
+ return 0;
+}
+
+/*
+ * Reply to client the request string.
+ */
+static int cgi_echo(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)name;
+
+ http_sendOk(client);
+ netconn_write(client, revc_buf, revc_len, NETCONN_COPY);
+ return 0;
+}
+
+
+
+/*
+ * Default function that http server call every client request, if it doesn't match a cgi table.
+ * In this implementation all client request are associate to real file stored on FAT file
+ * sistem on SD card. If the file there is not on SD card the server reply to client the
+ * error File not found, and send an harcoded page. In the same way, the server reply
+ * error page if the SD card is not present.
+ *
+ */
+static int http_htmPageLoad(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
+{
+ (void)revc_buf;
+ (void)revc_len;
+
+ if (SD_CARD_PRESENT())
+ {
+
+ // SD fat filesystem context
+ Sd sd;
+ FATFS fs;
+ FatFile in_file;
+ FRESULT result;
+
+ bool sd_ok = sd_init(&sd, NULL, 0);
+ if (sd_ok)
+ {
+ LOG_INFO("Mount FAT filesystem.\n");
+ result = f_mount(0, &fs);
+ if (result != FR_OK)
+ {
+ LOG_ERR("Mounting FAT volumes error[%d]\n", result);
+ sd_ok = false;
+ f_mount(0, NULL);
+ }
+
+ if (sd_ok)
+ {
+ result = fatfile_open(&in_file, name, FA_OPEN_EXISTING | FA_READ);
+
+ size_t count = 0;
+ if (result == FR_OK)
+ {
+ LOG_INFO("Opened file '%s' size %ld\n", name, in_file.fat_file.fsize);
+
+ http_sendOk(client);
+
+ while (count < in_file.fat_file.fsize)
+ {
+ int len = kfile_read(&in_file.fd, tx_buf, sizeof(tx_buf));
+ netconn_write(client, tx_buf, len, NETCONN_COPY);
+ count += len;
+ }
+
+ kfile_flush(&in_file.fd);
+ kfile_close(&in_file.fd);
+
+ LOG_INFO("Sent: %d\n", count);
+ }
+ else
+ {
+ LOG_ERR("Unable to open file: '%s' error[%d]\n", name, result);
+ http_sendFileNotFound(client);
+ netconn_write(client, http_file_not_found, http_file_not_found_len - 1, NETCONN_NOCOPY);
+ }
+ }
+ }
+ f_mount(0, NULL);
+ LOG_INFO("Umount FAT filesystem.\n");
+ }
+ else
+ {
+ http_sendFileNotFound(client);
+ netconn_write(client, http_sd_not_present, http_sd_not_present_len, NETCONN_NOCOPY);
+ }
+
+ return 0;
+}
+
+/*
+ * Return to client a string that display the CHIP ID information.
+ * See datasheet for more detail.
+ */
+static int cgi_chipInfo(struct netconn *client, const char *name, char *revc_buf, size_t revc_len)
{
+ (void)revc_buf;
+ (void)revc_len;
+ (void)name;
+
+ sprintf((char *)tx_buf, "{ \"core_name\":\"%s\", \"arch_name\":\"%s\", \"sram_size\":\"%s\",\
+ \"flash_size\":\"%s\", \"mem_boot_type\":\"%s\" }",
+ chipid_eproc_name(CHIPID_EPRCOC()),
+ chipid_archnames(CHIPID_ARCH()),
+ chipid_sramsize(CHIPID_SRAMSIZ()),
+ chipid_nvpsize(CHIPID_NVPSIZ()),
+ chipid_nvptype(CHIPID_NVTYP()));
+
http_sendOk(client);
- netconn_write(client, revc_buf, strlen((char *)revc_buf), NETCONN_COPY);
+ netconn_write(client, tx_buf, strlen((char *)tx_buf), NETCONN_COPY);
+
return 0;
}
+/*
+ * Static cgi table where we associate callback to page.
+ */
static HttpCGI cgi_table[] =
{
- { "echo", cgi_echo },
- { "temp", cgi_temp },
- { "status", cgi_status },
- { "bertos_logo_jpg.jpg", cgi_logo },
- { NULL, NULL }
+ { CGI_MATCH_WORD, "echo", cgi_echo },
+ { CGI_MATCH_NAME, "get_temperature", cgi_temp },
+ { CGI_MATCH_NAME, "get_uptime", cgi_uptime },
+ { CGI_MATCH_NAME, "get_resistor", cgi_resistor },
+ { CGI_MATCH_NAME, "set_led", cgi_led },
+ { CGI_MATCH_WORD, "status", cgi_status },
+ { CGI_MATCH_NAME, "get_chipinfo", cgi_chipInfo },
+ { CGI_MATCH_NAME, "bertos_logo_jpg", cgi_logo },
+ { CGI_MATCH_NONE, NULL, NULL }
};
{
struct netconn *server;
-
/* Hardware initialization */
init();
+ http_init(http_htmPageLoad, cgi_table);
proc_new(status_process, NULL, KERN_MINSTACKSIZE * 2, NULL);
while (1)
{
- http_server(server, cgi_table);
+ http_poll(server);
}
}
projects / bertos.git / blobdiff