alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-09-17 07:28:02 +00:00
Code Issues Packages Projects Releases Wiki Activity

spi: support H2 spi master, slave, slave_hd driver

Browse Source
This commit is contained in:
wanlei
2023-01-30 12:08:04 +08:00
parent 990c6f58a6
commit 5300bd3b2f
36 changed files with 448 additions and 323 deletions
Download Patch File Download Diff File Expand all files Collapse all files

209
components/hal/esp32h2/include/hal/spi_ll.h
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -24,6 +24,7 @@
#include "hal/assert.h"
#include "hal/misc.h"
#include "hal/spi_types.h"
#include "soc/pcr_struct.h"
#ifdef __cplusplus
extern "C" {
@@ -74,9 +75,47 @@ typedef enum {
} spi_ll_trans_len_cond_t;
FLAG_ATTR(spi_ll_trans_len_cond_t)
// SPI base command
typedef enum {
/* Slave HD Only */
SPI_LL_BASE_CMD_HD_WRBUF = 0x01,
SPI_LL_BASE_CMD_HD_RDBUF = 0x02,
SPI_LL_BASE_CMD_HD_WRDMA = 0x03,
SPI_LL_BASE_CMD_HD_RDDMA = 0x04,
SPI_LL_BASE_CMD_HD_SEG_END = 0x05,
SPI_LL_BASE_CMD_HD_EN_QPI = 0x06,
SPI_LL_BASE_CMD_HD_WR_END = 0x07,
SPI_LL_BASE_CMD_HD_INT0 = 0x08,
SPI_LL_BASE_CMD_HD_INT1 = 0x09,
SPI_LL_BASE_CMD_HD_INT2 = 0x0A,
} spi_ll_base_command_t;
/*------------------------------------------------------------------------------
* Control
*----------------------------------------------------------------------------*/
/**
* Select SPI peripheral clock source (master).
*
* @param hw Beginning address of the peripheral registers.
* @param clk_source clock source to select, see valid sources in type `spi_clock_source_t`
*/
static inline void spi_ll_set_clk_source(spi_dev_t *hw, spi_clock_source_t clk_source)
{
switch (clk_source)
{
case SPI_CLK_SRC_RC_FAST:
PCR.spi2_clkm_conf.spi2_clkm_sel = 2;
break;
case SPI_CLK_SRC_XTAL:
PCR.spi2_clkm_conf.spi2_clkm_sel = 0;
break;
default:
PCR.spi2_clkm_conf.spi2_clkm_sel = 1;
break;
}
}
/**
* Initialize SPI peripheral (master).
*
@@ -96,14 +135,13 @@ static inline void spi_ll_master_init(spi_dev_t *hw)
hw->slave.val = 0;
hw->user.val = 0;
hw->clk_gate.clk_en = 1;
hw->clk_gate.mst_clk_active = 1;
hw->clk_gate.mst_clk_sel = 1;
PCR.spi2_clkm_conf.spi2_clkm_en = 1;
PCR.spi2_clkm_conf.spi2_clkm_sel = 0;
hw->dma_conf.val = 0;
hw->dma_conf.tx_seg_trans_clr_en = 1;
hw->dma_conf.rx_seg_trans_clr_en = 1;
hw->dma_conf.dma_seg_trans_en = 0;
hw->dma_conf.slv_tx_seg_trans_clr_en = 1;
hw->dma_conf.slv_rx_seg_trans_clr_en = 1;
hw->dma_conf.dma_slv_seg_trans_en = 0;
}
/**
@@ -128,7 +166,7 @@ static inline void spi_ll_slave_init(spi_dev_t *hw)
// Configure DMA In-Link to not be terminated when transaction bit counter exceeds
hw->dma_conf.rx_eof_en = 0;
hw->dma_conf.dma_seg_trans_en = 0;
hw->dma_conf.dma_slv_seg_trans_en = 0;
//Disable unneeded ints
hw->dma_int_ena.val &= ~SPI_LL_UNUSED_INT_MASK;
@@ -161,7 +199,7 @@ static inline void spi_ll_slave_hd_init(spi_dev_t *hw)
*/
static inline bool spi_ll_usr_is_done(spi_dev_t *hw)
{
return hw->dma_int_raw.trans_done;
return hw->dma_int_raw.trans_done_int_raw;
}
/**
@@ -265,7 +303,7 @@ static inline void spi_ll_dma_rx_fifo_reset(spi_dev_t *hw)
*/
static inline void spi_ll_infifo_full_clr(spi_dev_t *hw)
{
hw->dma_int_clr.infifo_full_err = 1;
hw->dma_int_clr.dma_infifo_full_err_int_clr = 1;
}
/**
@@ -275,7 +313,7 @@ static inline void spi_ll_infifo_full_clr(spi_dev_t *hw)
*/
static inline void spi_ll_outfifo_empty_clr(spi_dev_t *hw)
{
hw->dma_int_clr.outfifo_empty_err = 1;
hw->dma_int_clr.dma_outfifo_empty_err_int_clr = 1;
}
/*------------------------------------------------------------------------------
@@ -330,7 +368,7 @@ static inline void spi_ll_write_buffer(spi_dev_t *hw, const uint8_t *buffer_to_s
//Use memcpy to get around alignment issues for txdata
uint32_t word;
memcpy(&word, &buffer_to_send[x / 8], 4);
hw->data_buf[(x / 32)] = word;
hw->data_buf[(x / 32)].buf0 = word;
}
}
@@ -358,10 +396,10 @@ static inline void spi_ll_write_buffer_byte(spi_dev_t *hw, int byte_id, uint8_t
//read-modify-write
if (copy_len != 4) {
word = hw->data_buf[byte_id / 4]; //read
word = hw->data_buf[byte_id / 4].buf0; //read
}
memcpy(((uint8_t *)&word) + offset, data, copy_len); //modify
hw->data_buf[byte_id / 4] = word; //write
hw->data_buf[byte_id / 4].buf0 = word; //write
data += copy_len;
byte_id += copy_len;
@@ -380,7 +418,7 @@ static inline void spi_ll_read_buffer(spi_dev_t *hw, uint8_t *buffer_to_rcv, siz
{
for (int x = 0; x < bitlen; x += 32) {
//Do a memcpy to get around possible alignment issues in rx_buffer
uint32_t word = hw->data_buf[x / 32];
uint32_t word = hw->data_buf[x / 32].buf0;
int len = bitlen - x;
if (len > 32) {
len = 32;
@@ -400,7 +438,7 @@ static inline void spi_ll_read_buffer(spi_dev_t *hw, uint8_t *buffer_to_rcv, siz
static inline void spi_ll_read_buffer_byte(spi_dev_t *hw, int byte_id, uint8_t *out_data, int len)
{
while (len > 0) {
uint32_t word = hw->data_buf[byte_id / 4];
uint32_t word = hw->data_buf[byte_id / 4].buf0;
int offset = byte_id % 4;
int copy_len = 4 - offset;
if (copy_len > len) {
@@ -563,7 +601,7 @@ static inline void spi_ll_master_set_line_mode(spi_dev_t *hw, spi_line_mode_t li
*/
static inline void spi_ll_slave_set_seg_mode(spi_dev_t *hw, bool seg_trans)
{
hw->dma_conf.dma_seg_trans_en = seg_trans;
hw->dma_conf.dma_slv_seg_trans_en = seg_trans;
}
/**
@@ -874,11 +912,11 @@ static inline void spi_ll_set_address(spi_dev_t *hw, uint64_t addr, int addrlen,
*/
addr = HAL_SWAP32(addr);
//otherwise only addr register is sent
hw->addr = addr;
hw->addr.val = addr;
} else {
// shift the address to MSB of addr register.
// output address will be sent from MSB to LSB of addr register
hw->addr = addr << (32 - addrlen);
hw->addr.val = addr << (32 - addrlen);
}
}
@@ -952,7 +990,7 @@ static inline void spi_ll_enable_mosi(spi_dev_t *hw, int enable)
*/
static inline uint32_t spi_ll_slave_get_rcv_bitlen(spi_dev_t *hw)
{
return hw->slave1.data_bitlen;
return hw->slave1.slv_data_bitlen;
}
/*------------------------------------------------------------------------------
@@ -961,16 +999,16 @@ static inline uint32_t spi_ll_slave_get_rcv_bitlen(spi_dev_t *hw)
//helper macros to generate code for each interrupts
#define FOR_EACH_ITEM(op, list) do { list(op) } while(0)
#define INTR_LIST(item) \
item(SPI_LL_INTR_TRANS_DONE, dma_int_ena.trans_done, dma_int_raw.trans_done, dma_int_clr.trans_done=1) \
item(SPI_LL_INTR_RDBUF, dma_int_ena.rd_buf_done, dma_int_raw.rd_buf_done, dma_int_clr.rd_buf_done=1) \
item(SPI_LL_INTR_WRBUF, dma_int_ena.wr_buf_done, dma_int_raw.wr_buf_done, dma_int_clr.wr_buf_done=1) \
item(SPI_LL_INTR_RDDMA, dma_int_ena.rd_dma_done, dma_int_raw.rd_dma_done, dma_int_clr.rd_dma_done=1) \
item(SPI_LL_INTR_WRDMA, dma_int_ena.wr_dma_done, dma_int_raw.wr_dma_done, dma_int_clr.wr_dma_done=1) \
item(SPI_LL_INTR_SEG_DONE, dma_int_ena.dma_seg_trans_done, dma_int_raw.dma_seg_trans_done, dma_int_clr.dma_seg_trans_done=1) \
item(SPI_LL_INTR_CMD7, dma_int_ena.cmd7, dma_int_raw.cmd7, dma_int_clr.cmd7=1) \
item(SPI_LL_INTR_CMD8, dma_int_ena.cmd8, dma_int_raw.cmd8, dma_int_clr.cmd8=1) \
item(SPI_LL_INTR_CMD9, dma_int_ena.cmd9, dma_int_raw.cmd9, dma_int_clr.cmd9=1) \
item(SPI_LL_INTR_CMDA, dma_int_ena.cmda, dma_int_raw.cmda, dma_int_clr.cmda=1)
item(SPI_LL_INTR_TRANS_DONE, dma_int_ena.trans_done_int_ena, dma_int_raw.trans_done_int_raw, dma_int_clr.trans_done_int_clr, dma_int_set.trans_done_int_set) \
item(SPI_LL_INTR_RDBUF, dma_int_ena.slv_rd_buf_done_int_ena, dma_int_raw.slv_rd_buf_done_int_raw, dma_int_clr.slv_rd_buf_done_int_clr, dma_int_set.slv_rd_buf_done_int_set) \
item(SPI_LL_INTR_WRBUF, dma_int_ena.slv_wr_buf_done_int_ena, dma_int_raw.slv_wr_buf_done_int_raw, dma_int_clr.slv_wr_buf_done_int_clr, dma_int_set.slv_wr_buf_done_int_set) \
item(SPI_LL_INTR_RDDMA, dma_int_ena.slv_rd_dma_done_int_ena, dma_int_raw.slv_rd_dma_done_int_raw, dma_int_clr.slv_rd_dma_done_int_clr, dma_int_set.slv_rd_dma_done_int_set) \
item(SPI_LL_INTR_WRDMA, dma_int_ena.slv_wr_dma_done_int_ena, dma_int_raw.slv_wr_dma_done_int_raw, dma_int_clr.slv_wr_dma_done_int_clr, dma_int_set.slv_wr_dma_done_int_set) \
item(SPI_LL_INTR_SEG_DONE, dma_int_ena.dma_seg_trans_done_int_ena, dma_int_raw.dma_seg_trans_done_int_raw, dma_int_clr.dma_seg_trans_done_int_clr, dma_int_set.dma_seg_trans_done_int_set) \
item(SPI_LL_INTR_CMD7, dma_int_ena.slv_cmd7_int_ena, dma_int_raw.slv_cmd7_int_raw, dma_int_clr.slv_cmd7_int_clr, dma_int_set.slv_cmd7_int_set) \
item(SPI_LL_INTR_CMD8, dma_int_ena.slv_cmd8_int_ena, dma_int_raw.slv_cmd8_int_raw, dma_int_clr.slv_cmd8_int_clr, dma_int_set.slv_cmd8_int_set) \
item(SPI_LL_INTR_CMD9, dma_int_ena.slv_cmd9_int_ena, dma_int_raw.slv_cmd9_int_raw, dma_int_clr.slv_cmd9_int_clr, dma_int_set.slv_cmd9_int_set) \
item(SPI_LL_INTR_CMDA, dma_int_ena.slv_cmda_int_ena, dma_int_raw.slv_cmda_int_raw, dma_int_clr.slv_cmda_int_clr, dma_int_set.slv_cmda_int_set)
static inline void spi_ll_enable_intr(spi_dev_t *hw, spi_ll_intr_t intr_mask)
@@ -989,14 +1027,14 @@ static inline void spi_ll_disable_intr(spi_dev_t *hw, spi_ll_intr_t intr_mask)
static inline void spi_ll_set_intr(spi_dev_t *hw, spi_ll_intr_t intr_mask)
{
#define SET_INTR(intr_bit, _, st_reg, ...) if (intr_mask & (intr_bit)) hw->st_reg = 1;
#define SET_INTR(intr_bit, _, __, ___, set_reg) if (intr_mask & (intr_bit)) hw->set_reg = 1;
FOR_EACH_ITEM(SET_INTR, INTR_LIST);
#undef SET_INTR
}
static inline void spi_ll_clear_intr(spi_dev_t *hw, spi_ll_intr_t intr_mask)
{
#define CLR_INTR(intr_bit, _, __, clr_reg) if (intr_mask & (intr_bit)) hw->clr_reg;
#define CLR_INTR(intr_bit, _, __, clr_reg, ...) if (intr_mask & (intr_bit)) hw->clr_reg = 1;
FOR_EACH_ITEM(CLR_INTR, INTR_LIST);
#undef CLR_INTR
}
@@ -1019,7 +1057,7 @@ static inline bool spi_ll_get_intr(spi_dev_t *hw, spi_ll_intr_t intr_mask)
*/
static inline void spi_ll_disable_int(spi_dev_t *hw)
{
hw->dma_int_ena.trans_done = 0;
hw->dma_int_ena.trans_done_int_ena = 0;
}
/**
@@ -1029,7 +1067,7 @@ static inline void spi_ll_disable_int(spi_dev_t *hw)
*/
static inline void spi_ll_clear_int_stat(spi_dev_t *hw)
{
hw->dma_int_raw.trans_done = 0;
hw->dma_int_clr.trans_done_int_clr = 1;
}
/**
@@ -1039,7 +1077,7 @@ static inline void spi_ll_clear_int_stat(spi_dev_t *hw)
*/
static inline void spi_ll_set_int_stat(spi_dev_t *hw)
{
hw->dma_int_raw.trans_done = 1;
hw->dma_int_set.trans_done_int_set = 1;
}
/**
@@ -1049,7 +1087,7 @@ static inline void spi_ll_set_int_stat(spi_dev_t *hw)
*/
static inline void spi_ll_enable_int(spi_dev_t *hw)
{
hw->dma_int_ena.trans_done = 1;
hw->dma_int_ena.trans_done_int_ena = 1;
}
/*------------------------------------------------------------------------------
@@ -1057,25 +1095,112 @@ static inline void spi_ll_enable_int(spi_dev_t *hw)
*----------------------------------------------------------------------------*/
static inline void spi_ll_slave_hd_set_len_cond(spi_dev_t *hw, spi_ll_trans_len_cond_t cond_mask)
{
hw->slave.rdbuf_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_RDBUF) ? 1 : 0;
hw->slave.wrbuf_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_WRBUF) ? 1 : 0;
hw->slave.rddma_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_RDDMA) ? 1 : 0;
hw->slave.wrdma_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_WRDMA) ? 1 : 0;
hw->slave.slv_rdbuf_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_RDBUF) ? 1 : 0;
hw->slave.slv_wrbuf_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_WRBUF) ? 1 : 0;
hw->slave.slv_rddma_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_RDDMA) ? 1 : 0;
hw->slave.slv_wrdma_bitlen_en = (cond_mask & SPI_LL_TRANS_LEN_COND_WRDMA) ? 1 : 0;
}
static inline int spi_ll_slave_get_rx_byte_len(spi_dev_t *hw)
{
return hw->slave1.data_bitlen / 8;
return hw->slave1.slv_data_bitlen / 8;
}
static inline uint32_t spi_ll_slave_hd_get_last_addr(spi_dev_t *hw)
{
return hw->slave1.last_addr;
return hw->slave1.slv_last_addr;
}
#undef SPI_LL_RST_MASK
#undef SPI_LL_UNUSED_INT_MASK
/**
* Get the base spi command
*
* @param cmd_t Command value
*/
static inline uint8_t spi_ll_get_slave_hd_base_command(spi_command_t cmd_t)
{
uint8_t cmd_base = 0x00;
switch (cmd_t)
{
case SPI_CMD_HD_WRBUF:
cmd_base = SPI_LL_BASE_CMD_HD_WRBUF;
break;
case SPI_CMD_HD_RDBUF:
cmd_base = SPI_LL_BASE_CMD_HD_RDBUF;
break;
case SPI_CMD_HD_WRDMA:
cmd_base = SPI_LL_BASE_CMD_HD_WRDMA;
break;
case SPI_CMD_HD_RDDMA:
cmd_base = SPI_LL_BASE_CMD_HD_RDDMA;
break;
case SPI_CMD_HD_SEG_END:
cmd_base = SPI_LL_BASE_CMD_HD_SEG_END;
break;
case SPI_CMD_HD_EN_QPI:
cmd_base = SPI_LL_BASE_CMD_HD_EN_QPI;
break;
case SPI_CMD_HD_WR_END:
cmd_base = SPI_LL_BASE_CMD_HD_WR_END;
break;
case SPI_CMD_HD_INT0:
cmd_base = SPI_LL_BASE_CMD_HD_INT0;
break;
case SPI_CMD_HD_INT1:
cmd_base = SPI_LL_BASE_CMD_HD_INT1;
break;
case SPI_CMD_HD_INT2:
cmd_base = SPI_LL_BASE_CMD_HD_INT2;
break;
default:
HAL_ASSERT(cmd_base);
}
return cmd_base;
}
/**
* Get the spi communication command
*
* @param cmd_t Base command value
* @param line_mode Line mode of SPI transaction phases: CMD, ADDR, DOUT/DIN.
*/
static inline uint16_t spi_ll_get_slave_hd_command(spi_command_t cmd_t, spi_line_mode_t line_mode)
{
uint8_t cmd_base = spi_ll_get_slave_hd_base_command(cmd_t);
uint8_t cmd_mod = 0x00; //CMD:1-bit, ADDR:1-bit, DATA:1-bit
if (line_mode.data_lines == 2) {
if (line_mode.addr_lines == 2) {
cmd_mod = 0x50; //CMD:1-bit, ADDR:2-bit, DATA:2-bit
} else {
cmd_mod = 0x10; //CMD:1-bit, ADDR:1-bit, DATA:2-bit
}
} else if (line_mode.data_lines == 4) {
if (line_mode.addr_lines == 4) {
cmd_mod = 0xA0; //CMD:1-bit, ADDR:4-bit, DATA:4-bit
} else {
cmd_mod = 0x20; //CMD:1-bit, ADDR:1-bit, DATA:4-bit
}
}
if (cmd_base == SPI_LL_BASE_CMD_HD_SEG_END || cmd_base == SPI_LL_BASE_CMD_HD_EN_QPI) {
cmd_mod = 0x00;
}
return cmd_base | cmd_mod;
}
/**
* Get the dummy bits
*
* @param line_mode Line mode of SPI transaction phases: CMD, ADDR, DOUT/DIN.
*/
static inline int spi_ll_get_slave_hd_dummy_bits(spi_line_mode_t line_mode)
{
return 8;
}
#ifdef __cplusplus
}
#endif