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-rw-r--r--code/fe310/eos/ecp.c6
-rw-r--r--code/fe310/eos/event.c52
-rw-r--r--code/fe310/eos/event.h3
-rw-r--r--code/fe310/eos/i2s.c61
-rw-r--r--code/fe310/eos/i2s_def.h5
-rw-r--r--code/fe310/eos/msgq.c45
-rw-r--r--code/fe310/eos/msgq.h2
-rw-r--r--code/fe310/eos/net.c42
-rw-r--r--code/fe310/eos/timer.c118
-rw-r--r--code/fe310/eos/timer.h11
-rw-r--r--code/fe310/eos/trap_entry.S84
11 files changed, 264 insertions, 165 deletions
diff --git a/code/fe310/eos/ecp.c b/code/fe310/eos/ecp.c
index 44d9a47..85539f5 100644
--- a/code/fe310/eos/ecp.c
+++ b/code/fe310/eos/ecp.c
@@ -13,11 +13,11 @@
static ECPSocket *_sock = NULL;
-static void timer_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
+static void timer_handler(unsigned char type) {
ecp_cts_t next = ecp_timer_exe(_sock);
if (next) {
uint32_t tick = next * (uint64_t)RTC_FREQ / 1000;
- eos_timer_set(tick, 1);
+ eos_timer_set(tick, EOS_TIMER_ETYPE_ECP);
}
}
@@ -59,8 +59,8 @@ int ecp_init(ECPContext *ctx) {
rv = ecp_ctx_create_vconn(ctx);
if (rv) return rv;
+ eos_timer_set_handler(EOS_TIMER_ETYPE_ECP, timer_handler, EOS_EVT_FLAG_NET_BUF_ACQ);
/* XXX */
- eos_evtq_set_handler(EOS_EVT_TIMER, timer_handler, EOS_EVT_FLAG_NET_BUF_ACQ);
// eos_net_set_handler(EOS_NET_DATA_PKT, packet_handler, 0);
return ECP_OK;
}
diff --git a/code/fe310/eos/event.c b/code/fe310/eos/event.c
index 66b1f4a..9e3fb90 100644
--- a/code/fe310/eos/event.c
+++ b/code/fe310/eos/event.c
@@ -13,8 +13,8 @@ EOSMsgQ _eos_event_q;
static EOSMsgItem event_q_array[EOS_EVT_SIZE_Q];
static eos_evt_fptr_t evt_handler[EOS_EVT_MAX_EVT];
-static uint16_t evt_handler_wrapper_acq = 0;
-static uint16_t evt_handler_flags_buf_acq = 0;
+static uint16_t evt_handler_wrapper_acq[EOS_EVT_MAX_EVT];
+static uint16_t evt_handler_flags_buf_acq[EOS_EVT_MAX_EVT];
void eos_evtq_init(void) {
int i;
@@ -42,38 +42,48 @@ void eos_evtq_bad_handler(unsigned char type, unsigned char *buffer, uint16_t le
write(1, "error\n", 6);
}
-static void evtq_handler_wrapper(unsigned char type, unsigned char *buffer, uint16_t len, uint16_t *flags_acq, uint16_t flag, eos_evt_fptr_t f) {
- int ok = eos_net_acquire(*flags_acq & flag);
+static void evtq_handler_wrapper(unsigned char type, unsigned char *buffer, uint16_t len) {
+ unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
+ uint16_t flag = (uint16_t)1 << ((type & ~EOS_EVT_MASK) - 1);
+ int ok;
+
+ ok = eos_net_acquire(evt_handler_wrapper_acq[idx] & flag);
if (ok) {
- f(type, buffer, len);
+ evt_handler[idx](type, buffer, len);
eos_net_release();
- *flags_acq &= ~flag;
+ evt_handler_wrapper_acq[idx] &= ~flag;
} else {
- *flags_acq |= flag;
+ evt_handler_wrapper_acq[idx] |= flag;
eos_evtq_push(type, buffer, len);
}
}
static void evtq_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
- if (((type & EOS_EVT_MASK) >> 4) > EOS_EVT_MAX_EVT) {
+ unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
+ uint16_t flag = (uint16_t)1 << ((type & ~EOS_EVT_MASK) - 1);
+
+ if (idx >= EOS_EVT_MAX_EVT) {
eos_evtq_bad_handler(type, buffer, len);
+ return;
+ }
+ if (flag & evt_handler_flags_buf_acq[idx]) {
+ evtq_handler_wrapper(type, buffer, len);
} else {
- unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
- uint16_t flag = (uint16_t)1 << idx;
- if (flag & evt_handler_flags_buf_acq) {
- evtq_handler_wrapper(type, buffer, len, &evt_handler_wrapper_acq, flag, evt_handler[idx]);
- } else {
- evt_handler[idx](type, buffer, len);
- }
+ evt_handler[idx](type, buffer, len);
}
}
-void eos_evtq_set_handler(unsigned char type, eos_evt_fptr_t handler, uint8_t flags) {
- if (flags) {
- uint16_t flag = (uint16_t)1 << (((type & EOS_EVT_MASK) >> 4) - 1);
- if (flags & EOS_EVT_FLAG_NET_BUF_ACQ) evt_handler_flags_buf_acq |= flag;
- }
- evt_handler[((type & EOS_EVT_MASK) >> 4) - 1] = handler;
+void eos_evtq_set_handler(unsigned char type, eos_evt_fptr_t handler) {
+ unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
+
+ if (idx < EOS_EVT_MAX_EVT) evt_handler[idx] = handler;
+}
+
+void eos_evtq_set_flags(unsigned char type, uint8_t flags) {
+ unsigned char idx = ((type & EOS_EVT_MASK) >> 4) - 1;
+ uint16_t flag = type & ~EOS_EVT_MASK ? (uint16_t)1 << ((type & ~EOS_EVT_MASK) - 1) : 0xFFFF;
+
+ if ((idx < EOS_EVT_MAX_EVT) && (flags & EOS_EVT_FLAG_NET_BUF_ACQ)) evt_handler_flags_buf_acq[idx] |= flag;
}
void eos_evtq_loop(void) {
diff --git a/code/fe310/eos/event.h b/code/fe310/eos/event.h
index 653d5c4..a9a98ef 100644
--- a/code/fe310/eos/event.h
+++ b/code/fe310/eos/event.h
@@ -8,5 +8,6 @@ void eos_evtq_init(void);
int eos_evtq_push(unsigned char type, unsigned char *buffer, uint16_t len);
void eos_evtq_pop(unsigned char *type, unsigned char **buffer, uint16_t *len);
void eos_evtq_bad_handler(unsigned char type, unsigned char *buffer, uint16_t len);
-void eos_evtq_set_handler(unsigned char type, eos_evt_fptr_t handler, uint8_t flags);
+void eos_evtq_set_handler(unsigned char type, eos_evt_fptr_t handler);
+void eos_evtq_set_flags(unsigned char type, uint8_t flags);
void eos_evtq_loop(void);
diff --git a/code/fe310/eos/i2s.c b/code/fe310/eos/i2s.c
index cb25493..d171a45 100644
--- a/code/fe310/eos/i2s.c
+++ b/code/fe310/eos/i2s.c
@@ -22,9 +22,13 @@ EOSABuf _eos_i2s_spk_buf;
uint32_t _eos_i2s_ck_period = 0;
uint32_t _eos_i2s_mic_volume = 0;
uint32_t _eos_i2s_spk_volume = 0;
-static eos_evt_fptr_t evt_handler[I2S_MAX_HANDLER];
-uint32_t _eos_i2s_evt_enable[I2S_MAX_HANDLER];
-uint32_t _eos_i2s_wm[I2S_MAX_HANDLER];
+uint32_t _eos_i2s_mic_wm;
+uint32_t _eos_i2s_spk_wm;
+uint32_t _eos_i2s_mic_evt_enable;
+uint32_t _eos_i2s_spk_evt_enable;
+
+static eos_evt_fptr_t spk_evt_handler;
+static eos_evt_fptr_t mic_evt_handler;
static void _abuf_init(EOSABuf *buf, uint8_t *array, uint16_t size) {
buf->idx_r = 0;
@@ -77,14 +81,23 @@ static uint16_t _abuf_len(EOSABuf *buf) {
return buf->idx_w - buf->idx_r;
}
-static void audio_handler(unsigned char type, unsigned char *buffer, uint16_t len) {
- type = type & ~EOS_EVT_MASK;
-
- if (type < I2S_MAX_HANDLER) {
- evt_handler[type](type, buffer, len);
- _eos_i2s_evt_enable[type] = 1;
- } else {
- eos_evtq_bad_handler(type, buffer, len);
+static void i2s_handler_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+ switch(type & ~EOS_EVT_MASK) {
+ case I2S_ETYPE_MIC:
+ mic_evt_handler(type, buffer, len);
+ clear_csr(mstatus, MSTATUS_MIE);
+ _eos_i2s_mic_evt_enable = 1;
+ set_csr(mstatus, MSTATUS_MIE);
+ break;
+ case I2S_ETYPE_SPK:
+ spk_evt_handler(type, buffer, len);
+ clear_csr(mstatus, MSTATUS_MIE);
+ _eos_i2s_spk_evt_enable = 1;
+ set_csr(mstatus, MSTATUS_MIE);
+ break;
+ default:
+ eos_evtq_bad_handler(type, buffer, len);
+ break;
}
}
@@ -144,24 +157,22 @@ void eos_i2s_init(uint32_t sample_rate) {
I2S_PWM_REG_WS_SPK(PWM_CMP1) = (_eos_i2s_ck_period + 1) * 32;
I2S_PWM_REG_WS_SPK(PWM_CMP2) = (_eos_i2s_ck_period + 1) * 33;
- _eos_i2s_evt_enable[I2S_EVT_MIC] = 0;
- _eos_i2s_evt_enable[I2S_EVT_SPK] = 0;
- evt_handler[I2S_EVT_MIC] = NULL;
- evt_handler[I2S_EVT_SPK] = NULL;
+ _eos_i2s_mic_evt_enable = 0;
+ _eos_i2s_spk_evt_enable = 0;
+ mic_evt_handler = eos_evtq_bad_handler;
+ spk_evt_handler = eos_evtq_bad_handler;
eos_intr_set(I2S_IRQ_WS_ID, 0, NULL);
eos_intr_set(I2S_IRQ_SD_ID, 0, NULL);
- for (i=0; i<I2S_MAX_HANDLER; i++) {
- evt_handler[i] = eos_evtq_bad_handler;
- }
- eos_evtq_set_handler(EOS_EVT_AUDIO, audio_handler, EOS_EVT_FLAG_NET_BUF_ACQ);
+ eos_evtq_set_handler(EOS_EVT_AUDIO, i2s_handler_evt);
+ eos_evtq_set_flags(EOS_EVT_AUDIO | I2S_ETYPE_MIC, EOS_EVT_FLAG_NET_BUF_ACQ);
}
extern void _eos_set_pwm(void);
void eos_i2s_start(void) {
- _eos_i2s_evt_enable[I2S_EVT_MIC] = 1;
- _eos_i2s_evt_enable[I2S_EVT_SPK] = 1;
+ _eos_i2s_mic_evt_enable = 1;
+ _eos_i2s_spk_evt_enable = 1;
eos_intr_set_priority(I2S_IRQ_WS_ID, I2S_IRQ_WS_PRIORITY);
@@ -229,13 +240,13 @@ void eos_i2s_mic_init(uint8_t *mic_arr, uint16_t mic_arr_size) {
void eos_i2s_mic_set_handler(eos_evt_fptr_t wm_handler) {
clear_csr(mstatus, MSTATUS_MIE);
- evt_handler[I2S_EVT_MIC] = wm_handler;
+ mic_evt_handler = wm_handler;
set_csr(mstatus, MSTATUS_MIE);
}
void eos_i2s_mic_set_wm(uint16_t wm) {
clear_csr(mstatus, MSTATUS_MIE);
- _eos_i2s_wm[I2S_EVT_MIC] = wm;
+ _eos_i2s_mic_wm = wm;
set_csr(mstatus, MSTATUS_MIE);
}
@@ -281,13 +292,13 @@ void eos_i2s_spk_init(uint8_t *spk_arr, uint16_t spk_arr_size) {
void eos_i2s_spk_set_handler(eos_evt_fptr_t wm_handler) {
clear_csr(mstatus, MSTATUS_MIE);
- evt_handler[I2S_EVT_SPK] = wm_handler;
+ spk_evt_handler = wm_handler;
set_csr(mstatus, MSTATUS_MIE);
}
void eos_i2s_spk_set_wm(uint16_t wm) {
clear_csr(mstatus, MSTATUS_MIE);
- _eos_i2s_wm[I2S_EVT_SPK] = wm;
+ _eos_i2s_spk_wm = wm;
set_csr(mstatus, MSTATUS_MIE);
}
diff --git a/code/fe310/eos/i2s_def.h b/code/fe310/eos/i2s_def.h
index 06fef72..1f7687a 100644
--- a/code/fe310/eos/i2s_def.h
+++ b/code/fe310/eos/i2s_def.h
@@ -1,6 +1,5 @@
-#define I2S_EVT_MIC 0x0
-#define I2S_EVT_SPK 0x1
-#define I2S_MAX_HANDLER 2
+#define I2S_ETYPE_MIC 1
+#define I2S_ETYPE_SPK 2
#define I2S_PIN_CK 1 /* PWM 0.1 */
#define I2S_PIN_CK_SW 21 /* PWM 1.2 */
diff --git a/code/fe310/eos/msgq.c b/code/fe310/eos/msgq.c
index 867bf94..0c5d8f1 100644
--- a/code/fe310/eos/msgq.c
+++ b/code/fe310/eos/msgq.c
@@ -1,4 +1,5 @@
#include <stddef.h>
+#include <string.h>
#include "eos.h"
#include "msgq.h"
@@ -41,36 +42,38 @@ void eos_msgq_pop(EOSMsgQ *msgq, unsigned char *type, unsigned char **buffer, ui
}
}
-void eos_msgq_get(EOSMsgQ *msgq, unsigned char type, unsigned char **buffer, uint16_t *len) {
+void eos_msgq_get(EOSMsgQ *msgq, unsigned char type, unsigned char *selector, uint16_t sel_len, unsigned char **buffer, uint16_t *len) {
+ uint8_t i, j, idx;
+
if (msgq->idx_r == msgq->idx_w) {
*buffer = NULL;
*len = 0;
return;
}
-
- uint8_t idx = EOS_MSGQ_IDX_MASK(msgq->idx_r, msgq->size);
- unsigned char _type = msgq->array[idx].type;
- EOSMsgItem *tmp_item = &msgq->array[idx];
-
- *buffer = msgq->array[idx].buffer;
- *len = msgq->array[idx].len;
- if (_type == type) {
- msgq->idx_r++;
- return;
- }
- for (idx = msgq->idx_r + 1; EOS_MSGQ_IDX_LT(idx, msgq->idx_w); idx++) {
- *tmp_item = msgq->array[EOS_MSGQ_IDX_MASK(idx, msgq->size)];
- msgq->array[EOS_MSGQ_IDX_MASK(idx, msgq->size)].type = _type;
- msgq->array[EOS_MSGQ_IDX_MASK(idx, msgq->size)].buffer = *buffer;
- msgq->array[EOS_MSGQ_IDX_MASK(idx, msgq->size)].len = *len;
- _type = tmp_item->type;
- *buffer = tmp_item->buffer;
- *len = tmp_item->len;
- if (_type == type) {
+
+ idx = EOS_MSGQ_IDX_MASK(msgq->idx_r, msgq->size);
+ if (type == msgq->array[idx].type) {
+ *buffer = msgq->array[idx].buffer;
+ *len = msgq->array[idx].len;
+ if ((selector == NULL) || (sel_len == 0) || ((sel_len <= *len) && (memcmp(selector, *buffer, sel_len) == 0))) {
msgq->idx_r++;
return;
}
}
+ for (i = msgq->idx_r + 1; EOS_MSGQ_IDX_LT(i, msgq->idx_w); i++) {
+ idx = EOS_MSGQ_IDX_MASK(i, msgq->size);
+ if (type== msgq->array[idx].type) {
+ *buffer = msgq->array[idx].buffer;
+ *len = msgq->array[idx].len;
+ if ((selector == NULL) || (sel_len == 0) || ((sel_len <= *len) && (memcmp(selector, *buffer, sel_len) == 0))) {
+ for (j = i + 1; EOS_MSGQ_IDX_LT(j, msgq->idx_w); j++) {
+ msgq->array[EOS_MSGQ_IDX_MASK(j - 1, msgq->size)] = msgq->array[EOS_MSGQ_IDX_MASK(j, msgq->size)];
+ }
+ msgq->idx_w--;
+ return;
+ }
+ }
+ }
*buffer = NULL;
*len = 0;
}
diff --git a/code/fe310/eos/msgq.h b/code/fe310/eos/msgq.h
index 5a61a79..a280357 100644
--- a/code/fe310/eos/msgq.h
+++ b/code/fe310/eos/msgq.h
@@ -16,4 +16,4 @@ typedef struct EOSMsgQ {
void eos_msgq_init(EOSMsgQ *msgq, EOSMsgItem *array, uint8_t size);
int eos_msgq_push(EOSMsgQ *msgq, unsigned char type, unsigned char *buffer, uint16_t len);
void eos_msgq_pop(EOSMsgQ *msgq, unsigned char *type, unsigned char **buffer, uint16_t *len);
-void eos_msgq_get(EOSMsgQ *msgq, unsigned char type, unsigned char **buffer, uint16_t *len); \ No newline at end of file
+void eos_msgq_get(EOSMsgQ *msgq, unsigned char type, unsigned char *selector, uint16_t sel_len, unsigned char **buffer, uint16_t *len); \ No newline at end of file
diff --git a/code/fe310/eos/net.c b/code/fe310/eos/net.c
index 0cbe9f6..b8a5056 100644
--- a/code/fe310/eos/net.c
+++ b/code/fe310/eos/net.c
@@ -217,32 +217,38 @@ static void net_handler_rts(void) {
}
static void net_handler_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
- if ((type & ~EOS_EVT_MASK) > EOS_NET_MAX_MTYPE) {
+ unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
+ uint16_t buf_free = ((uint16_t)1 << idx) & evt_handler_flags_buf_free;
+ uint16_t buf_acq = ((uint16_t)1 << idx) & evt_handler_flags_buf_acq;
+
+ if (idx >= EOS_NET_MAX_MTYPE) {
eos_evtq_bad_handler(type, buffer, len);
- } else {
- unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
- uint16_t buf_free = ((uint16_t)1 << idx) & evt_handler_flags_buf_free;
- uint16_t buf_acq = ((uint16_t)1 << idx) & evt_handler_flags_buf_acq;
-
- if (buf_free) {
- eos_net_free(buffer, buf_acq);
- buffer = NULL;
- len = 0;
- }
+ eos_net_free(buffer, 0);
+ return;
+ }
+ if (buf_free) {
+ eos_net_free(buffer, buf_acq);
+ buffer = NULL;
+ len = 0;
+ }
- evt_handler[idx](type, buffer, len);
+ evt_handler[idx](type, buffer, len);
- if (buf_free && buf_acq) eos_net_release();
- }
+ if (buf_free && buf_acq) eos_net_release();
}
-void eos_net_set_handler(unsigned char type, eos_evt_fptr_t handler, uint8_t flags) {
+void eos_net_set_handler(unsigned char mtype, eos_evt_fptr_t handler, uint8_t flags) {
+ if (mtype && (mtype <= EOS_NET_MAX_MTYPE)) {
+ mtype--;
+ } else {
+ return;
+ }
if (flags) {
- uint16_t flag = (uint16_t)1 << ((type & ~EOS_EVT_MASK) - 1);
+ uint16_t flag = (uint16_t)1 << mtype;
if (flags & EOS_NET_FLAG_BUF_FREE) evt_handler_flags_buf_free |= flag;
if (flags & EOS_NET_FLAG_BUF_ACQ) evt_handler_flags_buf_acq |= flag;
}
- evt_handler[(type & ~EOS_EVT_MASK) - 1] = handler;
+ evt_handler[mtype] = handler;
}
void eos_net_init(void) {
@@ -275,7 +281,7 @@ void eos_net_init(void) {
for (i=0; i<EOS_NET_MAX_MTYPE; i++) {
evt_handler[i] = eos_evtq_bad_handler;
}
- eos_evtq_set_handler(EOS_EVT_NET, net_handler_evt, 0);
+ eos_evtq_set_handler(EOS_EVT_NET, net_handler_evt);
}
void eos_net_start(uint32_t sckdiv) {
diff --git a/code/fe310/eos/timer.c b/code/fe310/eos/timer.c
index b287317..2bbeec8 100644
--- a/code/fe310/eos/timer.c
+++ b/code/fe310/eos/timer.c
@@ -11,30 +11,40 @@
#define MIN(X, Y) (((X) < (Y)) ? (X) : (Y))
#define MAX(X, Y) (((X) > (Y)) ? (X) : (Y))
-static eos_timer_fptr_t timer_ext_handler = NULL;
-volatile uint64_t timer_next = 0;
-volatile uint64_t timer_next_evt = 0;
+static eos_timer_fptr_t timer_handler[EOS_TIMER_MAX_ETYPE + 1];
+static uint64_t timer_next[EOS_TIMER_MAX_ETYPE + 1];
extern EOSMsgQ _eos_event_q;
+static void timer_handler_evt(unsigned char type, unsigned char *buffer, uint16_t len) {
+ unsigned char idx = (type & ~EOS_EVT_MASK) - 1;
+
+ if ((idx < EOS_TIMER_MAX_ETYPE) && timer_handler[idx]) {
+ timer_handler[idx](type);
+ } else {
+ eos_evtq_bad_handler(type, buffer, len);
+ }
+}
+
void eos_timer_handle(void) {
+ int i;
volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
- volatile uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+ uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
uint64_t now = *mtime;
-
- if (timer_next && (timer_next <= now)) {
- uint32_t next = timer_ext_handler();
- if (next) {
- timer_next = now + next;
- } else {
- timer_next = 0;
+ uint64_t next = 0;
+
+ for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+ if (timer_next[i] && (timer_next[i] <= now)) {
+ timer_next[i] = 0;
+ if (i == EOS_TIMER_MAX_ETYPE) {
+ timer_handler[EOS_TIMER_MAX_ETYPE](0);
+ } else {
+ eos_msgq_push(&_eos_event_q, EOS_EVT_TIMER | i + 1, NULL, 0);
+ }
}
+ next = next && timer_next[i] ? MIN(next, timer_next[i]) : (next ? next : timer_next[i]);
}
- if (timer_next_evt && (timer_next_evt <= now)) {
- eos_msgq_push(&_eos_event_q, EOS_EVT_TIMER, NULL, 0);
- timer_next_evt = 0;
- }
- *mtimecmp = (timer_next && timer_next_evt) ? MIN(timer_next, timer_next_evt) : (timer_next ? timer_next : timer_next_evt);
+ *mtimecmp = next;
if (*mtimecmp == 0) clear_csr(mie, MIP_MTIP);
}
@@ -43,51 +53,81 @@ void handle_m_time_interrupt(void) {
}
void eos_timer_init(void) {
+ int i;
volatile uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
- *mtimecmp = 0;
+
clear_csr(mie, MIP_MTIP);
+ *mtimecmp = 0;
+ for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+ timer_next[i] = 0;
+ timer_handler[i] = NULL;
+ }
+ eos_evtq_set_handler(EOS_EVT_TIMER, timer_handler_evt);
}
-void eos_timer_set(uint32_t tick, unsigned char is_evt) {
+void eos_timer_set(uint32_t tick, unsigned char evt) {
+ int i;
volatile uint64_t *mtime = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIME);
- volatile uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
-
+ uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+ uint64_t next = 0;
+ uint64_t now;
+
clear_csr(mie, MIP_MTIP);
- uint64_t now = *mtime;
- uint64_t next = now + tick;
- if (is_evt) {
- if ((timer_next_evt == 0) || (next < timer_next_evt)) timer_next_evt = next;
- next = timer_next ? MIN(timer_next, timer_next_evt) : timer_next_evt;
- } else if (timer_ext_handler) {
- if ((timer_next == 0) || (next < timer_next)) timer_next = next;
- next = timer_next_evt ? MIN(timer_next, timer_next_evt) : timer_next;
+ now = *mtime;
+ if (evt && (evt <= EOS_TIMER_MAX_ETYPE)) {
+ evt--;
+ } else if (evt == 0) {
+ evt = EOS_TIMER_MAX_ETYPE;
+ } else {
+ return;
+ }
+ if ((timer_next[evt] == 0) || (now + tick < timer_next[evt])) timer_next[evt] = now + tick;
+ for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+ next = next && timer_next[i] ? MIN(next, timer_next[i]) : (next ? next : timer_next[i]);
}
- if ((*mtimecmp == 0) || (next < *mtimecmp)) *mtimecmp = next;
+ *mtimecmp = next;
if (*mtimecmp != 0) set_csr(mie, MIP_MTIP);
}
-void eos_timer_clear(unsigned char is_evt) {
- volatile uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+void eos_timer_clear(unsigned char evt) {
+ int i;
+ uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+ uint64_t next = 0;
clear_csr(mie, MIP_MTIP);
- if (is_evt) {
- timer_next_evt = 0;
- *mtimecmp = timer_next;
+ if (evt && (evt <= EOS_TIMER_MAX_ETYPE)) {
+ evt--;
+ } else if (evt == 0) {
+ evt = EOS_TIMER_MAX_ETYPE;
} else {
- timer_next = 0;
- *mtimecmp = timer_next_evt;
+ return;
}
+ timer_next[evt] = 0;
+ for (i = 0; i <= EOS_TIMER_MAX_ETYPE; i++) {
+ next = next && timer_next[i] ? MIN(next, timer_next[i]) : (next ? next : timer_next[i]);
+ }
+ *mtimecmp = next;
if (*mtimecmp != 0) set_csr(mie, MIP_MTIP);
}
-void eos_timer_set_handler(eos_timer_fptr_t handler) {
- volatile uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
+void eos_timer_set_handler(unsigned char evt, eos_timer_fptr_t handler, uint8_t flags) {
+ uint64_t *mtimecmp = (uint64_t *) (CLINT_CTRL_ADDR + CLINT_MTIMECMP);
clear_csr(mie, MIP_MTIP);
- timer_ext_handler = handler;
+
+ if (evt && (evt <= EOS_TIMER_MAX_ETYPE)) {
+ evt--;
+ } else if (evt == 0) {
+ evt = EOS_TIMER_MAX_ETYPE;
+ } else {
+ return;
+ }
+ timer_handler[evt] = handler;
+ if (flags) eos_evtq_set_flags(EOS_EVT_TIMER | evt, flags);
+
if (*mtimecmp != 0) set_csr(mie, MIP_MTIP);
}
diff --git a/code/fe310/eos/timer.h b/code/fe310/eos/timer.h
index 929283b..34512fa 100644
--- a/code/fe310/eos/timer.h
+++ b/code/fe310/eos/timer.h
@@ -1,7 +1,12 @@
#include <stdint.h>
-typedef uint32_t (*eos_timer_fptr_t) (void);
+#define EOS_TIMER_ETYPE_ECP 1
+#define EOS_TIMER_ETYPE_USER 2
+
+#define EOS_TIMER_MAX_ETYPE 4
+
+typedef void (*eos_timer_fptr_t) (unsigned char);
void eos_timer_init(void);
-void eos_timer_set(uint32_t tick, unsigned char is_evt);
-void eos_timer_set_handler(eos_timer_fptr_t handler);
+void eos_timer_set(uint32_t tick, unsigned char evt);
+void eos_timer_set_handler(unsigned char evt, eos_timer_fptr_t handler, uint8_t flags);
diff --git a/code/fe310/eos/trap_entry.S b/code/fe310/eos/trap_entry.S
index 432e84a..650c45b 100644
--- a/code/fe310/eos/trap_entry.S
+++ b/code/fe310/eos/trap_entry.S
@@ -75,25 +75,26 @@ evtq_push:
la x9, _eos_event_q
lbu x18, MSGQ_OFF_IDXR(x9)
lbu x19, MSGQ_OFF_IDXW(x9)
- lbu x8, MSGQ_OFF_SIZE(x9)
-
+ lbu x20, MSGQ_OFF_SIZE(x9)
+
sub x18, x19, x18
- beq x18, x8, 0f
+ andi x18, x18, 0xff
+ beq x18, x20, 0f
- addi x8, x8, -1
- and x8, x8, x19
+ addi x20, x20, -1
+ and x20, x20, x19
li x18, MSGQ_ITEM_SIZE
- mul x8, x8, x18
- lw x18, MSGQ_OFF_ARRAY(x9)
- add x8, x8, x18
+ mul x20, x20, x18
+ lw x21, MSGQ_OFF_ARRAY(x9)
+ add x21, x21, x20
addi x19, x19, 1
sb x19, MSGQ_OFF_IDXW(x9)
- jalr x0, x20
+ jalr x0, x22
0:
- mv x8, x0
- jalr x0, x20
+ mv x20, x0
+ jalr x0, x21
i2s_handler_sd:
# exit if too early
@@ -111,18 +112,41 @@ i2s_handler_sd:
la x9, _eos_i2s_spk_buf
lhu x18, I2S_ABUF_OFF_IDXR(x9)
lhu x19, I2S_ABUF_OFF_IDXW(x9)
+ lhu x20, I2S_ABUF_OFF_SIZE(x9)
+
beq x18, x19, i2s_handler_sd_xchg
- lhu x19, I2S_ABUF_OFF_SIZE(x9)
- addi x19, x19, -1
- and x19, x19, x18
- lw x8, I2S_ABUF_OFF_ARRAY(x9)
- add x19, x19, x8
- lbu x8, 0(x19)
+ addi x20, x20, -1
+ and x20, x20, x18
+ lw x21, I2S_ABUF_OFF_ARRAY(x9)
+ add x21, x21, x20
+ lbu x8, 0(x21)
addi x18, x18, 1
sh x18, I2S_ABUF_OFF_IDXR(x9)
+
+ li x21, 0xffff
+ sub x18, x19, x18
+ and x18, x18, x21
+
+ # check for push to event queue
+ la x9, _eos_i2s_spk_wm
+ lw x20, 0(x9)
+ beqz x20, i2s_decode
+ bgtu x18, x20, i2s_decode
+
+ la x9, _eos_i2s_spk_evt_enable
+ lw x18, 0(x9)
+ beqz x18, i2s_decode
+ sw x0, 0(x9)
+ # push to event queue
+ jal x22, evtq_push
+ beqz x21, i2s_decode
+ li x18, (EOS_EVT_AUDIO | I2S_ETYPE_SPK)
+ sb x18, MSGQ_ITEM_OFF_TYPE(x21)
+
+i2s_decode:
# aLaw decode -> x8
xori x8, x8, 0x55
andi x9, x8, 0x80
@@ -231,6 +255,7 @@ i2s_handler_sd_xchg:
and x9, x9, x20
sw x9, GPIO_OUTPUT_EN(x18)
+i2s_encode:
# aLaw encode -> x8
li x18, 0x800
li x19, 7
@@ -270,36 +295,35 @@ i2s_handler_sd_xchg:
sub x18, x19, x18
and x18, x18, x21
- beq x18, x20, 0f
-
- addi x19, x19, 1
- sh x19, I2S_ABUF_OFF_IDXW(x9)
+ beq x18, x20, i2s_handler_sd_exit
addi x20, x20, -1
and x20, x20, x19
- lw x19, I2S_ABUF_OFF_ARRAY(x9)
- add x20, x19, x20
+ lw x21, I2S_ABUF_OFF_ARRAY(x9)
+ add x20, x21, x20
+
+ addi x19, x19, 1
+ sh x19, I2S_ABUF_OFF_IDXW(x9)
sb x8, 0(x20)
addi x18, x18, 1
-0:
# check for push to event queue
- la x9, _eos_i2s_wm
+ la x9, _eos_i2s_mic_wm
lw x20, 0(x9)
beqz x20, i2s_handler_sd_exit
bltu x18, x20, i2s_handler_sd_exit
- la x9, _eos_i2s_evt_enable
+ la x9, _eos_i2s_mic_evt_enable
lw x18, 0(x9)
beqz x18, i2s_handler_sd_exit
sw x0, 0(x9)
# push to event queue
- jal x20, evtq_push
- beqz x8, i2s_handler_sd_exit
- li x18, (EOS_EVT_AUDIO | I2S_EVT_MIC)
- sb x18, MSGQ_ITEM_OFF_TYPE(x8)
+ jal x22, evtq_push
+ beqz x21, i2s_handler_sd_exit
+ li x18, (EOS_EVT_AUDIO | I2S_ETYPE_MIC)
+ sb x18, MSGQ_ITEM_OFF_TYPE(x21)
i2s_handler_sd_exit:
# complete
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 07:49:34 +0000