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RTLPlayground/httpd/page_impl.c
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René van Dorst 7d94f3d328 Improve JSON response. 
Remove all the extra spaces from the json.
Also simplify the generation of the json.
Codespace is cheap so duplicated strings is not an issue.
But generating strings from different parts is more expensive in clock cycles.

Add a helper funcion `bool_to_html()` to generate bool value for html output.
2025-10-28 21:10:26 +01:00

334 lines
8.6 KiB
C
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// #define REGDBG 1
#include "../rtl837x_sfr.h"
#include "../rtl837x_common.h"
#include "../rtl837x_regs.h"
#include "../rtl837x_port.h"
#include "uip.h"
#include "../html_data.h"
#include <stdint.h>
#include "../phy.h"
#pragma codeseg BANK1
#pragma constseg BANK1
extern __xdata uint8_t outbuf[TCP_OUTBUF_SIZE];
extern __xdata uint16_t slen;
extern __code uint8_t * __code hex;
extern __xdata uip_ipaddr_t uip_hostaddr, uip_draddr, uip_netmask;
extern __code struct uip_eth_addr uip_ethaddr;
extern __code uint8_t log_to_phys_port[9];
extern __code uint8_t phys_to_log_port[6];
extern __xdata uint8_t minPort;
extern __xdata uint8_t maxPort;
extern __xdata uint8_t nSFPPorts;
extern __xdata uint8_t sfr_data[4];
extern __xdata uint8_t cpuPort;
extern __xdata uint8_t isRTL8373;
extern __xdata uint8_t sfp_pins_last;
extern __xdata uint8_t vlan_names[VLAN_NAMES_SIZE];
__code uint8_t * __code HTTP_RESPONCE_JSON = "HTTP/1.1 200 OK\r\nContent-Type: application/json\r\n\r\n";
/* Convert only the lower nibble to ascii HEX char.
For convenience the upper nibble is masked out.
*/
inline char itohex(uint8_t val) {
// Ignore upper nibble for convenience.
val &= 0x0f;
val -= 10;
// 10 or above
if ((int8_t)val >= 0)
val += ('a' - '0' - 10);
return val + ('0' + 10);
}
// Convert uint8_t to ascii HEX char push on html-buffer.
void charhex_to_html(char c)
{
outbuf[slen++] = itohex(c);
}
// Convert (uint8_t) bool to ascii '0' or '1' char push on html-buffer.
void bool_to_html(char c)
{
outbuf[slen++] = c ? '1' : '0';
}
void char_to_html(char c)
{
outbuf[slen++] = c;
}
// Convert uint8_t to ascii HEX char.
void byte_to_html(uint8_t val)
{
uint8_t cnt = 2;
do {
val = (val >> 4) | (val << 4);
charhex_to_html(val);
cnt -= 1;
} while(cnt);
}
/* Converts a uint8_t to raw string.
Suppress leading zeros.
*/
void itoa_html(uint8_t v)
{
uint8_t t = (v / 100);
// when print_zeros is not zero, we know that a non-zero number has printed.
// That have to print all the next numbers.
uint8_t print_zeros = t;
if (print_zeros)
char_to_html('0' + t);
t = (v / 10) % 10;
print_zeros |= t;
if (print_zeros)
char_to_html('0' + t);
char_to_html('0' + (v % 10));
}
uint16_t stat_content(void)
{
print_string("stat_content called\n");
return 0;
}
uint16_t port_status(void)
{
print_string("port_status called\n");
return 0;
}
/* Converts sfr_data[] into raw hex string.
Suppress leading zeros.
*/
void sfr_data_to_html(void)
{
uint8_t print_zeros = 0;
uint8_t val = 0;
for (uint8_t nibble = 0; nibble < 8; nibble++) {
if (!(nibble & 1))
val = sfr_data[nibble>>1];
// force the swap instruction, itohex() ignores the upper nibble.
val = (val << 4) | (val >> 4);
// when print_zeros is not zero, we know that a non-zero number has printed.
// That have to print all the next numbers.
print_zeros |= val;
// only care about lower nibble, that is what is printed.
print_zeros &= 0x0f;
if (print_zeros)
charhex_to_html(val);
}
if (print_zeros == 0) {
char_to_html('0');
}
}
void reg_to_html(register uint16_t reg)
{
reg_read_m(reg);
sfr_data_to_html();
}
void send_basic_info(void)
{
slen = strtox(outbuf, HTTP_RESPONCE_JSON);
print_string("send_basic_info called\n");
slen += strtox(outbuf + slen, "{\"ip_address\":\"");
itoa_html(uip_hostaddr[0]); char_to_html('.');
itoa_html(uip_hostaddr[0] >> 8); char_to_html('.');
itoa_html(uip_hostaddr[1]); char_to_html('.');
itoa_html(uip_hostaddr[1] >> 8);
slen += strtox(outbuf + slen, "\",\"ip_gateway\":\"");
itoa_html(uip_draddr[0]); char_to_html('.');
itoa_html(uip_draddr[0] >> 8); char_to_html('.');
itoa_html(uip_draddr[1]); char_to_html('.');
itoa_html(uip_draddr[1] >> 8);
slen += strtox(outbuf + slen, "\",\"ip_netmask\":\"");
itoa_html(uip_netmask[0]); char_to_html('.');
itoa_html(uip_netmask[0] >> 8); char_to_html('.');
itoa_html(uip_netmask[1]); char_to_html('.');
itoa_html(uip_netmask[1] >> 8);
slen += strtox(outbuf + slen, "\",\"mac_address\":\"");
byte_to_html(uip_ethaddr.addr[0]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[1]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[2]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[3]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[4]); char_to_html(':');
byte_to_html(uip_ethaddr.addr[5]);
slen += strtox(outbuf + slen, "\",\"sw_ver\":\"v0.1-ge4c48586\",\"hw_ver\":\"SWGT024-V2.0\"}");
// slen += strtox(outbuf + slen, "\"}");
}
void send_vlan(uint16_t vlan)
{
slen = strtox(outbuf, HTTP_RESPONCE_JSON);
print_string("sending VLAN\n");
//{"members":"0x00060011"}
slen += strtox(outbuf + slen, "{\"members\":\"0x");
vlan_get(vlan);
sfr_data_to_html();
slen += strtox(outbuf + slen, "\",\"name\":\"");
__xdata uint16_t n = vlan_name(vlan);
if (n== 0xffff) {
print_string("VLAN has no name\n");
} else {
while(vlan_names[n] && vlan_names[n] != ' ')
char_to_html(vlan_names[n++]);
}
slen += strtox(outbuf + slen, "\"}");
}
void send_counters(char port)
{
print_string("send_counters called: "); print_byte(port); write_char('\n');
slen = strtox(outbuf, HTTP_RESPONCE_JSON);
print_string("sending counters\n");
port--;
uint8_t i = isRTL8373 ? port - 1: phys_to_log_port[port];
slen += strtox(outbuf + slen, "{\"portNum\":");
itoa_html(i + 1);
for (uint8_t j = 0; j < 0x3f; j++) {
STAT_GET(j, i);
slen += strtox(outbuf + slen, ",\"cnt_");
itoa_html(j);
slen += strtox(outbuf + slen, "\":\"0x");
reg_to_html(RTL837X_STAT_V_HIGH);
reg_to_html(RTL837X_STAT_V_LOW);
char_to_html('\"');
}
char_to_html('}');
}
void send_eee()
{
print_string("send_eee called\nsending EEE status\n");
slen = strtox(outbuf, HTTP_RESPONCE_JSON);
reg_read_m(RTL8373_PHY_EEE_ABLTY);
uint8_t eee_ablty = sfr_data[3];
char_to_html('[');
for (uint8_t i = minPort; i <= maxPort; i++) {
slen += strtox(outbuf + slen, "{\"portNum\":");
if (!isRTL8373)
itoa_html(log_to_phys_port[i]);
else
itoa_html(i + 1);
if (IS_SFP(i)) {
slen += strtox(outbuf + slen, ",\"isSFP\":1");
} else {
slen += strtox(outbuf + slen, ",\"isSFP\":0,\"eee\":\"");
uint16_t v;
phy_read(i, PHY_MMD_AN, PHY_EEE_ADV2);
v = SFR_DATA_U16;
bool_to_html(v & PHY_EEE_BIT_2G5);
phy_read(i, PHY_MMD_AN, PHY_EEE_ADV);
v = SFR_DATA_U16;
bool_to_html(v & PHY_EEE_BIT_1G);
bool_to_html(v & PHY_EEE_BIT_100M);
phy_read(i, PHY_MMD_AN, PHY_EEE_LP_ABILITY2);
v = SFR_DATA_U16;
slen += strtox(outbuf + slen, "\",\"eee_lp\":\"");
bool_to_html (v & PHY_EEE_BIT_2G5);
phy_read(i, PHY_MMD_AN, PHY_EEE_LP_ABILITY);
v = SFR_DATA_U16;
bool_to_html(v & PHY_EEE_BIT_1G);
bool_to_html(v & PHY_EEE_BIT_100M);
slen += strtox(outbuf + slen, "\",\"active\":");
bool_to_html(eee_ablty & (1 << i));
}
char_to_html('}');
if (i < maxPort)
char_to_html(',');
else
char_to_html(']');
}
}
void send_status(void)
{
slen = strtox(outbuf, HTTP_RESPONCE_JSON);
print_string("sending status\n");
char_to_html('[');
for (uint8_t i = minPort; i <= maxPort; i++) {
slen += strtox(outbuf + slen, "{\"portNum\":");
if (!isRTL8373)
itoa_html(log_to_phys_port[i]);
else
itoa_html(i + 1);
if (IS_SFP(i)) {
slen += strtox(outbuf + slen, ",\"isSFP\":1,\"enabled\":");
bool_to_html(!((sfp_pins_last >> (i == maxPort ? 0 : 4)) & 1));
slen += strtox(outbuf + slen, ",\"link\":");
uint8_t rate = sfp_read_reg(i == maxPort ? 0 : 1, 12);
if (rate == 0xd)
char_to_html('2'); // 1000BX
else if (rate == 0x1f)
char_to_html('5'); // 2G5
else if (rate > 0x65 && rate < 0x70)
char_to_html('4'); // 10G "4" is not a valid value for port LINK speed
else
char_to_html('1'); // 100M ???
} else {
slen += strtox(outbuf + slen, ",\"isSFP\":0,\"enabled\":");
phy_read(i, 0x1f, 0xa610);
bool_to_html(SFR_DATA_8 == 0x20);
slen += strtox(outbuf + slen, ",\"link\":");
reg_read_m(RTL837X_REG_LINKS);
uint8_t b = sfr_data[3 - (i >> 1)];
b = (i & 1) ? b >> 4 : b & 0xf;
char_to_html('0' + b);
}
STAT_GET(STAT_COUNTER_TX_PKTS, i);
slen += strtox(outbuf + slen, ",\"txG\":\"0x");
reg_to_html(RTL837X_STAT_V_HIGH);
reg_to_html(RTL837X_STAT_V_LOW);
slen += strtox(outbuf + slen, "\",\"txB\":\"0x");
STAT_GET(STAT_COUNTER_ERR_PKTS, i);
reg_to_html(RTL837X_STAT_V_LOW); // 32 bit Tx Packet errors
slen += strtox(outbuf + slen, "\",\"rxG\":\"0x");
STAT_GET(STAT_COUNTER_RX_PKTS, i);
reg_to_html(RTL837X_STAT_V_HIGH);
reg_to_html(RTL837X_STAT_V_LOW);
slen += strtox(outbuf + slen, "\",\"rxB\":\"0x");
STAT_GET(STAT_COUNTER_ERR_PKTS, i);
reg_to_html(RTL837X_STAT_V_HIGH); // 32bit RX packet errors
slen += strtox(outbuf + slen, "\"}");
if (i < maxPort)
char_to_html(',');
else
char_to_html(']');
}
}
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