From 200c401da28af7dcc6f7a3413837ab9a01410a2c Mon Sep 17 00:00:00 2001
From: Uros Majstorovic <majstor@majstor.org>
Date: Thu, 12 Sep 2024 15:52:05 +0200
Subject: led flash driver initial import

---
 fw/fe310/eos/dev/tps61052.c | 340 ++++++++++++++++++++++++++++++++++++++++++++
 fw/fe310/eos/dev/tps61052.h |  34 +++++
 2 files changed, 374 insertions(+)
 create mode 100644 fw/fe310/eos/dev/tps61052.c
 create mode 100644 fw/fe310/eos/dev/tps61052.h

diff --git a/fw/fe310/eos/dev/tps61052.c b/fw/fe310/eos/dev/tps61052.c
new file mode 100644
index 0000000..d2d431c
--- /dev/null
+++ b/fw/fe310/eos/dev/tps61052.c
@@ -0,0 +1,340 @@
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "eos.h"
+#include "soc/i2c.h"
+
+#include "tps61052.h"
+
+#define TPS61052_ADDR       0x33
+
+static int reg_read(uint8_t reg, uint8_t *data) {
+    int rv;
+
+    rv = eos_i2c_read8(TPS61052_ADDR, reg, data, 1);
+    return rv;
+}
+
+static int reg_write(uint8_t reg, uint8_t data) {
+    int rv;
+
+    rv = eos_i2c_write8(TPS61052_ADDR, reg, &data, 1);
+    return rv;
+}
+
+/* register b00 */
+int eos_tps61052_get_tc(uint8_t *tc) {
+    int rv;
+
+    rv = reg_read(0, tc);
+    if (rv) return rv;
+
+    *tc &= 0x07;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_tc(uint8_t tc) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(0, &data);
+    if (rv) return rv;
+
+    data &= 0xF8;
+    tc &= 0x07;
+
+    rv = reg_write(0, data | tc);
+    return rv;
+}
+
+int eos_tps61052_get_dim(uint8_t *dim) {
+    int rv;
+
+    rv = reg_read(0, dim);
+    if (rv) return rv;
+
+    *dim = *dim >> 3;
+    *dim &= 0x01;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_dim(uint8_t dim) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(0, &data);
+    if (rv) return rv;
+
+    data &= 0xF7;
+    dim &= 0x01;
+    dim = dim << 3;
+
+    rv = reg_write(0, data | dim);
+    return rv;
+}
+
+int eos_tps61052_get_ov(uint8_t *ov) {
+    int rv;
+
+    rv = reg_read(0, ov);
+    if (rv) return rv;
+
+    *ov = *ov >> 4;
+    *ov &= 0x03;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_ov(uint8_t ov) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(0, &data);
+    if (rv) return rv;
+
+    data &= 0xCF;
+    ov &= 0x03;
+    ov = ov << 4;
+
+    rv = reg_write(0, data | ov);
+    return rv;
+}
+
+int eos_tps61052_get_mode0(uint8_t *mode) {
+    int rv;
+
+    rv = reg_read(0, mode);
+    if (rv) return rv;
+
+    *mode = *mode >> 6;
+    *mode &= 0x03;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_mode0(uint8_t mode) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(0, &data);
+    if (rv) return rv;
+
+    data &= 0x3F;
+    mode &= 0x03;
+    mode = mode << 6;
+
+    rv = reg_write(0, data | mode);
+    return rv;
+}
+
+/* register b01 */
+int eos_tps61052_get_fc(uint8_t *fc) {
+    int rv;
+
+    rv = reg_read(1, fc);
+    if (rv) return rv;
+
+    *fc &= 0x07;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_fc(uint8_t fc) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(1, &data);
+    if (rv) return rv;
+
+    data &= 0xF8;
+    fc &= 0x07;
+
+    fc = reg_write(1, data | fc);
+    return rv;
+}
+
+int eos_tps61052_get_sft(uint8_t *sft) {
+    int rv;
+
+    rv = reg_read(1, sft);
+    if (rv) return rv;
+
+    *sft = *sft >> 3;
+    *sft &= 0x01;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_sft(uint8_t sft) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(1, &data);
+    if (rv) return rv;
+
+    data &= 0xF7;
+    sft &= 0x01;
+    sft = sft << 3;
+
+    rv = reg_write(1, data | sft);
+    return rv;
+}
+
+int eos_tps61052_get_stt(uint8_t *stt) {
+    int rv;
+
+    rv = reg_read(1, stt);
+    if (rv) return rv;
+
+    *stt = *stt >> 4;
+    *stt &= 0x01;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_stt(uint8_t stt) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(1, &data);
+    if (rv) return rv;
+
+    data &= 0xEF;
+    stt &= 0x01;
+    stt = stt << 4;
+
+    rv = reg_write(1, data | stt);
+    return rv;
+}
+
+int eos_tps61052_get_to(uint8_t *to) {
+    int rv;
+
+    rv = reg_read(1, to);
+    if (rv) return rv;
+
+    *to = *to >> 5;
+    *to &= 0x01;
+    return EOS_OK;
+}
+
+int eos_tps61052_get_mode1(uint8_t *mode) {
+    int rv;
+
+    rv = reg_read(1, mode);
+    if (rv) return rv;
+
+    *mode = *mode >> 6;
+    *mode &= 0x03;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_mode1(uint8_t mode) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(1, &data);
+    if (rv) return rv;
+
+    data &= 0x3F;
+    mode &= 0x03;
+    mode = mode << 6;
+
+    rv = reg_write(1, data | mode);
+    return rv;
+}
+
+/* register b10 */
+int eos_tps61052_get_adc(uint8_t *adc) {
+    int rv;
+
+    rv = reg_read(2, adc);
+    if (rv) return rv;
+
+    *adc = *adc >> 3;
+    *adc &= 0x07;
+    return EOS_OK;
+}
+
+int eos_tps61052_get_lf(uint8_t *lf) {
+    int rv;
+
+    rv = reg_read(2, lf);
+    if (rv) return rv;
+
+    *lf = *lf >> 6;
+    *lf &= 0x01;
+    return EOS_OK;
+}
+
+int eos_tps61052_get_ot(uint8_t *ot) {
+    int rv;
+
+    rv = reg_read(2, ot);
+    if (rv) return rv;
+
+    *ot = *ot >> 7;
+    *ot &= 0x01;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_ilim(uint8_t ilim) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(2, &data);
+    if (rv) return rv;
+
+    data &= 0x9F;
+    ilim &= 0x03;
+    ilim = ilim << 5;
+
+    rv = reg_write(2, data | ilim);
+    return rv;
+}
+
+/* register b11 */
+int eos_tps61052_get_stim(uint8_t *stim) {
+    int rv;
+
+    rv = reg_read(3, stim);
+    if (rv) return rv;
+
+    *stim &= 0x1F;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_stim(uint8_t stim) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(3, &data);
+    if (rv) return rv;
+
+    data &= 0xE0;
+    stim &= 0x1F;
+
+    stim = reg_write(3, data | stim);
+    return rv;
+}
+
+int eos_tps61052_get_dctim(uint8_t *dctim) {
+    int rv;
+
+    rv = reg_read(3, dctim);
+    if (rv) return rv;
+
+    *dctim = *dctim >> 5;
+    *dctim &= 0x07;
+    return EOS_OK;
+}
+
+int eos_tps61052_set_dctim(uint8_t dctim) {
+    uint8_t data;
+    int rv;
+
+    rv = reg_read(3, &data);
+    if (rv) return rv;
+
+    data &= 0x1F;
+    dctim &= 0x07;
+    dctim = dctim << 5;
+
+    rv = reg_write(3, data | dctim);
+    return rv;
+}
diff --git a/fw/fe310/eos/dev/tps61052.h b/fw/fe310/eos/dev/tps61052.h
new file mode 100644
index 0000000..2711d2b
--- /dev/null
+++ b/fw/fe310/eos/dev/tps61052.h
@@ -0,0 +1,34 @@
+#include <stdint.h>
+
+/* register b00 */
+int eos_tps61052_get_tc(uint8_t *tc);
+int eos_tps61052_set_tc(uint8_t tc);
+int eos_tps61052_get_dim(uint8_t *dim);
+int eos_tps61052_set_dim(uint8_t dim);
+int eos_tps61052_get_ov(uint8_t *ov);
+int eos_tps61052_set_ov(uint8_t ov);
+int eos_tps61052_get_mode0(uint8_t *mode);
+int eos_tps61052_set_mode0(uint8_t mode);
+
+/* register b01 */
+int eos_tps61052_get_fc(uint8_t *fc);
+int eos_tps61052_set_fc(uint8_t fc);
+int eos_tps61052_get_sft(uint8_t *sft);
+int eos_tps61052_set_sft(uint8_t sft);
+int eos_tps61052_get_stt(uint8_t *stt);
+int eos_tps61052_set_stt(uint8_t stt);
+int eos_tps61052_get_to(uint8_t *to);
+int eos_tps61052_get_mode1(uint8_t *mode);
+int eos_tps61052_set_mode1(uint8_t mode);
+
+/* register b10 */
+int eos_tps61052_get_adc(uint8_t *adc);
+int eos_tps61052_get_lf(uint8_t *lf);
+int eos_tps61052_get_ot(uint8_t *ot);
+int eos_tps61052_set_ilim(uint8_t ilim);
+
+/* register b11 */
+int eos_tps61052_get_stim(uint8_t *stim);
+int eos_tps61052_set_stim(uint8_t stim);
+int eos_tps61052_get_dctim(uint8_t *dctim);
+int eos_tps61052_set_dctim(uint8_t dctim);
-- 
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