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Merge pull request #2990 from cesanta/w5100

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Add W5100 driver
This commit is contained in:
robertc2000 2024-12-17 15:34:54 +02:00 committed by GitHub
commit b0b0dd9f0b
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3 changed files with 220 additions and 5 deletions
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118
mongoose.c
View File

@ -6439,9 +6439,7 @@ MG_IRAM static bool mg_stm32f_swap(void) {
static bool s_flash_irq_disabled;
MG_IRAM static bool mg_stm32f_write(void *addr,
const void *buf,
size_t len) {
MG_IRAM static bool mg_stm32f_write(void *addr, const void *buf, size_t len) {
if ((len % s_mg_flash_stm32f.align) != 0) {
MG_ERROR(("%lu is not aligned to %lu", len, s_mg_flash_stm32f.align));
return false;
@ -6472,8 +6470,7 @@ MG_IRAM static bool mg_stm32f_write(void *addr,
}
// just overwrite instead of swap
MG_IRAM void single_bank_swap(char *p1, char *p2,
size_t size) {
MG_IRAM void single_bank_swap(char *p1, char *p2, size_t size) {
// no stdlib calls here
mg_stm32f_write(p1, p2, size);
*(volatile unsigned long *) 0xe000ed0c = 0x5fa0004;
@ -6505,6 +6502,7 @@ bool mg_ota_end(void) {
return false;
}
#endif
#ifdef MG_ENABLE_LINES
#line 1 "src/ota_stm32h5.c"
#endif
@ -19621,6 +19619,116 @@ struct mg_tcpip_driver mg_tcpip_driver_tms570 = {mg_tcpip_driver_tms570_init,
#endif
#ifdef MG_ENABLE_LINES
#line 1 "src/drivers/w5100.c"
#endif
#if MG_ENABLE_TCPIP && defined(MG_ENABLE_DRIVER_W5100) && MG_ENABLE_DRIVER_W5100
static void w5100_txn(struct mg_tcpip_spi *s, uint16_t addr,
bool wr, void *buf, size_t len) {
size_t i;
uint8_t *p = (uint8_t *) buf;
uint8_t control = wr ? 0xF0 : 0x0F;
uint8_t cmd[] = {control, (uint8_t) (addr >> 8), (uint8_t) (addr & 255)};
s->begin(s->spi);
for (i = 0; i < sizeof(cmd); i++) s->txn(s->spi, cmd[i]);
for (i = 0; i < len; i++) {
uint8_t r = s->txn(s->spi, p[i]);
if (!wr) p[i] = r;
}
s->end(s->spi);
}
// clang-format off
static void w5100_wn(struct mg_tcpip_spi *s, uint16_t addr, void *buf, size_t len) { w5100_txn(s, addr, true, buf, len); }
static void w5100_w1(struct mg_tcpip_spi *s, uint16_t addr, uint8_t val) { w5100_wn(s, addr, &val, 1); }
static void w5100_w2(struct mg_tcpip_spi *s, uint16_t addr, uint16_t val) { uint8_t buf[2] = {(uint8_t) (val >> 8), (uint8_t) (val & 255)}; w5100_wn(s, addr, buf, sizeof(buf)); }
static void w5100_rn(struct mg_tcpip_spi *s, uint16_t addr, void *buf, size_t len) { w5100_txn(s, addr, false, buf, len); }
static uint8_t w5100_r1(struct mg_tcpip_spi *s, uint16_t addr) { uint8_t r = 0; w5100_rn(s, addr, &r, 1); return r; }
static uint16_t w5100_r2(struct mg_tcpip_spi *s, uint16_t addr) { uint8_t buf[2] = {0, 0}; w5100_rn(s, addr, buf, sizeof(buf)); return (uint16_t) ((buf[0] << 8) | buf[1]); }
// clang-format on
static size_t w5100_rx(void *buf, size_t buflen, struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *s = (struct mg_tcpip_spi *) ifp->driver_data;
uint16_t r = 0, n = 0, len = (uint16_t) buflen, n2; // Read recv len
while ((n2 = w5100_r2(s, 0x426)) > n) n = n2; // Until it is stable
if (n > 0) {
uint16_t ptr = w5100_r2(s, 0x428); // Get read pointer
if (n <= len + 2 && n > 1) {
r = (uint16_t) (n - 2);
}
uint16_t rxbuf_size = (1 << (w5100_r1(s, 0x1a) & 3)) * 1024;
uint16_t rxbuf_addr = 0x6000;
uint16_t ptr_ofs = (ptr + 2) & (rxbuf_size - 1);
if (ptr_ofs + r < rxbuf_size) {
w5100_rn(s, rxbuf_addr + ptr_ofs, buf, r);
} else {
uint16_t remaining_len = rxbuf_size - ptr_ofs;
w5100_rn(s, rxbuf_addr + ptr_ofs, buf, remaining_len);
w5100_rn(s, rxbuf_addr, buf + remaining_len, n - remaining_len);
}
w5100_w2(s, 0x428, (uint16_t) (ptr + n));
w5100_w1(s, 0x401, 0x40); // Sock0 CR -> RECV
}
return r;
}
static size_t w5100_tx(const void *buf, size_t buflen,
struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *s = (struct mg_tcpip_spi *) ifp->driver_data;
uint16_t i, n = 0, ptr = 0, len = (uint16_t) buflen;
while (n < len) n = w5100_r2(s, 0x420); // Wait for space
ptr = w5100_r2(s, 0x424); // Get write pointer
uint16_t txbuf_size = (1 << (w5100_r1(s, 0x1b) & 3)) * 1024;
uint16_t ptr_ofs = ptr & (txbuf_size - 1);
uint16_t txbuf_addr = 0x4000;
if (ptr_ofs + len > txbuf_size) {
uint16_t size = txbuf_size - ptr_ofs;
w5100_wn(s, txbuf_addr + ptr_ofs, (char*) buf, size);
w5100_wn(s, txbuf_addr, (char*) buf + size, len - size);
} else {
w5100_wn(s, txbuf_addr + ptr_ofs, (char*) buf, len);
}
w5100_w2(s, 0x424, (uint16_t) (ptr + len)); // Advance write pointer
w5100_w1(s, 0x401, 0x20); // Sock0 CR -> SEND
for (i = 0; i < 40; i++) {
uint8_t ir = w5100_r1(s, 0x402); // Read S0 IR
if (ir == 0) continue;
// printf("IR %d, len=%d, free=%d, ptr %d\n", ir, (int) len, (int) n, ptr);
w5100_w1(s, 0x402, ir); // Write S0 IR: clear it!
if (ir & 8) len = 0; // Timeout. Report error
if (ir & (16 | 8)) break; // Stop on SEND_OK or timeout
}
return len;
}
static bool w5100_init(struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *s = (struct mg_tcpip_spi *) ifp->driver_data;
s->end(s->spi);
w5100_w1(s, 0, 0x80); // Reset chip: CR -> 0x80
w5100_w1(s, 0x72, 0x53); // CR PHYLCKR -> unlock PHY
w5100_w1(s, 0x46, 0); // CR PHYCR0 -> autonegotiation
w5100_w1(s, 0x47, 0); // CR PHYCR1 -> reset
w5100_w1(s, 0x72, 0x00); // CR PHYLCKR -> lock PHY
w5100_w1(s, 0x1a, 6); // Sock0 RX buf size - 4KB
w5100_w1(s, 0x1b, 6); // Sock0 TX buf size - 4KB
w5100_w1(s, 0x400, 4); // Sock0 MR -> MACRAW
w5100_w1(s, 0x401, 1); // Sock0 CR -> OPEN
return w5100_r1(s, 0x403) == 0x42; // Sock0 SR == MACRAW
}
static bool w5100_up(struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *spi = (struct mg_tcpip_spi *) ifp->driver_data;
uint8_t physr0 = w5100_r1(spi, 0x3c);
return physr0 & 1; // Bit 0 of PHYSR is LNK (0 - down, 1 - up)
}
struct mg_tcpip_driver mg_tcpip_driver_w5100 = {w5100_init, w5100_tx, w5100_rx,
w5100_up};
#endif
#ifdef MG_ENABLE_LINES
#line 1 "src/drivers/w5500.c"
#endif

1
mongoose.h
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@ -2778,6 +2778,7 @@ void mg_tcpip_arp_request(struct mg_tcpip_if *ifp, uint32_t ip, uint8_t *mac);
extern struct mg_tcpip_driver mg_tcpip_driver_stm32f;
extern struct mg_tcpip_driver mg_tcpip_driver_w5500;
extern struct mg_tcpip_driver mg_tcpip_driver_w5100;
extern struct mg_tcpip_driver mg_tcpip_driver_tm4c;
extern struct mg_tcpip_driver mg_tcpip_driver_tms570;
extern struct mg_tcpip_driver mg_tcpip_driver_stm32h;

106
src/drivers/w5100.c Normal file
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@ -0,0 +1,106 @@
#include "net_builtin.h"
#if MG_ENABLE_TCPIP && defined(MG_ENABLE_DRIVER_W5100) && MG_ENABLE_DRIVER_W5100
static void w5100_txn(struct mg_tcpip_spi *s, uint16_t addr,
bool wr, void *buf, size_t len) {
size_t i;
uint8_t *p = (uint8_t *) buf;
uint8_t control = wr ? 0xF0 : 0x0F;
uint8_t cmd[] = {control, (uint8_t) (addr >> 8), (uint8_t) (addr & 255)};
s->begin(s->spi);
for (i = 0; i < sizeof(cmd); i++) s->txn(s->spi, cmd[i]);
for (i = 0; i < len; i++) {
uint8_t r = s->txn(s->spi, p[i]);
if (!wr) p[i] = r;
}
s->end(s->spi);
}
// clang-format off
static void w5100_wn(struct mg_tcpip_spi *s, uint16_t addr, void *buf, size_t len) { w5100_txn(s, addr, true, buf, len); }
static void w5100_w1(struct mg_tcpip_spi *s, uint16_t addr, uint8_t val) { w5100_wn(s, addr, &val, 1); }
static void w5100_w2(struct mg_tcpip_spi *s, uint16_t addr, uint16_t val) { uint8_t buf[2] = {(uint8_t) (val >> 8), (uint8_t) (val & 255)}; w5100_wn(s, addr, buf, sizeof(buf)); }
static void w5100_rn(struct mg_tcpip_spi *s, uint16_t addr, void *buf, size_t len) { w5100_txn(s, addr, false, buf, len); }
static uint8_t w5100_r1(struct mg_tcpip_spi *s, uint16_t addr) { uint8_t r = 0; w5100_rn(s, addr, &r, 1); return r; }
static uint16_t w5100_r2(struct mg_tcpip_spi *s, uint16_t addr) { uint8_t buf[2] = {0, 0}; w5100_rn(s, addr, buf, sizeof(buf)); return (uint16_t) ((buf[0] << 8) | buf[1]); }
// clang-format on
static size_t w5100_rx(void *buf, size_t buflen, struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *s = (struct mg_tcpip_spi *) ifp->driver_data;
uint16_t r = 0, n = 0, len = (uint16_t) buflen, n2; // Read recv len
while ((n2 = w5100_r2(s, 0x426)) > n) n = n2; // Until it is stable
if (n > 0) {
uint16_t ptr = w5100_r2(s, 0x428); // Get read pointer
if (n <= len + 2 && n > 1) {
r = (uint16_t) (n - 2);
}
uint16_t rxbuf_size = (1 << (w5100_r1(s, 0x1a) & 3)) * 1024;
uint16_t rxbuf_addr = 0x6000;
uint16_t ptr_ofs = (ptr + 2) & (rxbuf_size - 1);
if (ptr_ofs + r < rxbuf_size) {
w5100_rn(s, rxbuf_addr + ptr_ofs, buf, r);
} else {
uint16_t remaining_len = rxbuf_size - ptr_ofs;
w5100_rn(s, rxbuf_addr + ptr_ofs, buf, remaining_len);
w5100_rn(s, rxbuf_addr, buf + remaining_len, n - remaining_len);
}
w5100_w2(s, 0x428, (uint16_t) (ptr + n));
w5100_w1(s, 0x401, 0x40); // Sock0 CR -> RECV
}
return r;
}
static size_t w5100_tx(const void *buf, size_t buflen,
struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *s = (struct mg_tcpip_spi *) ifp->driver_data;
uint16_t i, n = 0, ptr = 0, len = (uint16_t) buflen;
while (n < len) n = w5100_r2(s, 0x420); // Wait for space
ptr = w5100_r2(s, 0x424); // Get write pointer
uint16_t txbuf_size = (1 << (w5100_r1(s, 0x1b) & 3)) * 1024;
uint16_t ptr_ofs = ptr & (txbuf_size - 1);
uint16_t txbuf_addr = 0x4000;
if (ptr_ofs + len > txbuf_size) {
uint16_t size = txbuf_size - ptr_ofs;
w5100_wn(s, txbuf_addr + ptr_ofs, (char*) buf, size);
w5100_wn(s, txbuf_addr, (char*) buf + size, len - size);
} else {
w5100_wn(s, txbuf_addr + ptr_ofs, (char*) buf, len);
}
w5100_w2(s, 0x424, (uint16_t) (ptr + len)); // Advance write pointer
w5100_w1(s, 0x401, 0x20); // Sock0 CR -> SEND
for (i = 0; i < 40; i++) {
uint8_t ir = w5100_r1(s, 0x402); // Read S0 IR
if (ir == 0) continue;
// printf("IR %d, len=%d, free=%d, ptr %d\n", ir, (int) len, (int) n, ptr);
w5100_w1(s, 0x402, ir); // Write S0 IR: clear it!
if (ir & 8) len = 0; // Timeout. Report error
if (ir & (16 | 8)) break; // Stop on SEND_OK or timeout
}
return len;
}
static bool w5100_init(struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *s = (struct mg_tcpip_spi *) ifp->driver_data;
s->end(s->spi);
w5100_w1(s, 0, 0x80); // Reset chip: CR -> 0x80
w5100_w1(s, 0x72, 0x53); // CR PHYLCKR -> unlock PHY
w5100_w1(s, 0x46, 0); // CR PHYCR0 -> autonegotiation
w5100_w1(s, 0x47, 0); // CR PHYCR1 -> reset
w5100_w1(s, 0x72, 0x00); // CR PHYLCKR -> lock PHY
w5100_w1(s, 0x1a, 6); // Sock0 RX buf size - 4KB
w5100_w1(s, 0x1b, 6); // Sock0 TX buf size - 4KB
w5100_w1(s, 0x400, 4); // Sock0 MR -> MACRAW
w5100_w1(s, 0x401, 1); // Sock0 CR -> OPEN
return w5100_r1(s, 0x403) == 0x42; // Sock0 SR == MACRAW
}
static bool w5100_up(struct mg_tcpip_if *ifp) {
struct mg_tcpip_spi *spi = (struct mg_tcpip_spi *) ifp->driver_data;
uint8_t physr0 = w5100_r1(spi, 0x3c);
return physr0 & 1; // Bit 0 of PHYSR is LNK (0 - down, 1 - up)
}
struct mg_tcpip_driver mg_tcpip_driver_w5100 = {w5100_init, w5100_tx, w5100_rx,
w5100_up};
#endif