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driver(RMT): Fix the breaking change issue of RMT driver introduced by refactoring.

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After RMT driver refactor, two breaking change are introduced:

    1. Users needs to call `rmt_driver_install` before `rmt_config`.

    2. Do not support memory block count > 1,

    fix this two issues

    closes https://github.com/espressif/esp-idf/issues/4664

    closes https://github.com/espressif/esp-idf/issues/4959
This commit is contained in:
houwenxiang
2020-03-17 15:52:45 +08:00
parent 514596cb81
commit 0bf2906bc9
5 changed files with 182 additions and 155 deletions
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6
components/soc/src/esp32s2/include/hal/rmt_ll.h
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@@ -21,6 +21,9 @@ extern "C" {
#include "soc/rmt_struct.h"
#include "soc/rmt_caps.h"
#define RMT_LL_HW_BASE (&RMT)
#define RMT_LL_MEM_BASE (&RMTMEM)
static inline void rmt_ll_enable_drive_clock(rmt_dev_t *dev, bool enable)
{
dev->apb_conf.clk_en = enable; // register clock gating
@@ -367,9 +370,10 @@ static inline void rmt_ll_tx_set_carrier_always_on(rmt_dev_t *dev, uint32_t chan
dev->conf_ch[channel].conf0.carrier_eff_en = !enable;
}
//Writes items to the specified TX channel memory with the given offset and writen length.
//the caller should ensure that (length + off) <= (memory block * SOC_RMT_CHANNEL_MEM_WORDS)
static inline void rmt_ll_write_memory(rmt_mem_t *mem, uint32_t channel, const rmt_item32_t *data, uint32_t length, uint32_t off)
{
length = (off + length) > SOC_RMT_CHANNEL_MEM_WORDS ? (SOC_RMT_CHANNEL_MEM_WORDS - off) : length;
for (uint32_t i = 0; i < length; i++) {
mem->chan[channel].data32[i + off].val = data[i].val;
}