Diff: targets/TARGET_Realtek/TARGET_AMEBA/spi_api.c

Revision:

182:57724642e740

Parent:

181:96ed750bd169

--- a/targets/TARGET_Realtek/TARGET_AMEBA/spi_api.c	Wed Jan 17 15:23:54 2018 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,296 +0,0 @@
-/* mbed Microcontroller Library
- * Copyright (c) 2013-2016 Realtek Semiconductor Corp.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include "objects.h"
-#include "spi_api.h"
-
-#include "PinNames.h"
-#include "pinmap.h"
-#include "hal_ssi.h"
-
-extern u32 SystemGetCpuClk(VOID);
-extern VOID HAL_GPIO_PullCtrl(u32 pin, u32 mode);
-
-void spi_tx_done_callback(VOID *obj);
-void spi_rx_done_callback(VOID *obj);
-void spi_bus_tx_done_callback(VOID *obj);
-
-
-//TODO: Load default Setting: It should be loaded from external setting file.
-extern const DW_SSI_DEFAULT_SETTING SpiDefaultSetting;
-
-static const PinMap PinMap_SSI_MOSI[] = {
-    {PE_2,  RTL_PIN_PERI(SPI0, 0, S0), RTL_PIN_FUNC(SPI0, S0)},
-    {PC_2,  RTL_PIN_PERI(SPI0, 0, S1), RTL_PIN_FUNC(SPI0, S1)},
-    {PA_1,  RTL_PIN_PERI(SPI1, 1, S0), RTL_PIN_FUNC(SPI1, S0)},
-    {PB_6,  RTL_PIN_PERI(SPI1, 1, S1), RTL_PIN_FUNC(SPI1, S1)},
-    {PD_6,  RTL_PIN_PERI(SPI1, 1, S2), RTL_PIN_FUNC(SPI1, S2)},
-    {PG_2,  RTL_PIN_PERI(SPI2, 2, S0), RTL_PIN_FUNC(SPI2, S0)},
-    {PE_6,  RTL_PIN_PERI(SPI2, 2, S1), RTL_PIN_FUNC(SPI2, S1)},
-    {PD_2,  RTL_PIN_PERI(SPI2, 2, S2), RTL_PIN_FUNC(SPI2, S2)},
-    {NC,    NC,     0}
-};
-
-static const PinMap PinMap_SSI_MISO[] = {
-    {PE_3,  RTL_PIN_PERI(SPI0, 0, S0), RTL_PIN_FUNC(SPI0, S0)},
-    {PC_3,  RTL_PIN_PERI(SPI0, 0, S1), RTL_PIN_FUNC(SPI0, S1)},
-    {PA_0,  RTL_PIN_PERI(SPI1, 1, S0), RTL_PIN_FUNC(SPI1, S0)},
-    {PB_7,  RTL_PIN_PERI(SPI1, 1, S1), RTL_PIN_FUNC(SPI1, S1)},
-    {PD_7,  RTL_PIN_PERI(SPI1, 1, S2), RTL_PIN_FUNC(SPI1, S2)},
-    {PG_3,  RTL_PIN_PERI(SPI2, 2, S0), RTL_PIN_FUNC(SPI2, S0)},
-    {PE_7,  RTL_PIN_PERI(SPI2, 2, S1), RTL_PIN_FUNC(SPI2, S1)},
-    {PD_3,  RTL_PIN_PERI(SPI2, 2, S2), RTL_PIN_FUNC(SPI2, S2)},
-    {NC,    NC,     0}
-};
-
-
-void spi_init (spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
-{
-    SSI_DBG_ENTRANCE("spi_init()\n");
-
-    uint32_t ssi_mosi, ssi_miso, ssi_peri;
-    uint8_t  ssi_idx, ssi_pinmux;
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-    PHAL_SSI_OP pHalSsiOp;
-
-    _memset((void*)obj, 0, sizeof(spi_t));
-    obj->state = 0;
-    uint32_t SystemClock = SystemGetCpuClk();
-    uint32_t MaxSsiFreq  = (SystemClock >> 2) >> 1;
-
-    /* SsiClockDivider doesn't support odd number */
-
-    DBG_SSI_INFO("SystemClock: %d\n", SystemClock);
-    DBG_SSI_INFO("MaxSsiFreq : %d\n", MaxSsiFreq);
-
-    ssi_mosi = pinmap_peripheral(mosi, PinMap_SSI_MOSI);
-    ssi_miso = pinmap_peripheral(miso, PinMap_SSI_MISO);
-
-    ssi_peri = pinmap_merge(ssi_mosi, ssi_miso);
-    if (unlikely(ssi_peri == NC)) {
-        DBG_SSI_ERR("spi_init(): Cannot find matched SSI index.\n");
-        return;
-    }
-    obj->sclk = (u8)sclk;
-    ssi_idx = RTL_GET_PERI_IDX(ssi_peri);
-    ssi_pinmux = RTL_GET_PERI_SEL(ssi_peri);
-    DBG_SSI_INFO("ssi_peri: %d, ssi_idx: %d, ssi_pinmux: %d\n", ssi_peri, ssi_idx, ssi_pinmux);
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    pHalSsiOp = &obj->spi_op;
-
-    pHalSsiAdaptor->Index = ssi_idx;
-    pHalSsiAdaptor->PinmuxSelect = ssi_pinmux;
-    pHalSsiAdaptor->Role = SSI_MASTER;
-
-    HalSsiOpInit((VOID*)pHalSsiOp);
-
-    pHalSsiOp->HalSsiSetDeviceRole(pHalSsiAdaptor, pHalSsiAdaptor->Role);
-
-    /* Pinmux workaround */
-    if ((ssi_idx == 0) && (ssi_pinmux == SSI0_MUX_TO_GPIOC)) {
-        EEPROM_PIN_CTRL(OFF);
-    }
-
-    if ((ssi_idx == 0) && (ssi_pinmux == SSI0_MUX_TO_GPIOE)) {
-            DBG_SSI_WARN(ANSI_COLOR_MAGENTA"SPI0 Pin may conflict with JTAG\r\n"ANSI_COLOR_RESET);        
-    }
-
-    //TODO: Implement default setting structure.
-    pHalSsiOp->HalSsiLoadSetting(pHalSsiAdaptor, (void*)&SpiDefaultSetting);
-    pHalSsiAdaptor->DefaultRxThresholdLevel = SpiDefaultSetting.RxThresholdLevel;
-
-    if(HalSsiInit(pHalSsiAdaptor) != HAL_OK){
-        DBG_SSI_ERR(ANSI_COLOR_RED"spi_init(): SPI %x init fails.\n"ANSI_COLOR_RESET,pHalSsiAdaptor->Index);
-        return;        
-    }
-    osDelay(1);
-}
-
-void spi_free (spi_t *obj)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;    
-    pHalSsiAdaptor = &obj->spi_adp;
-    HalSsiDeInit(pHalSsiAdaptor);
-
-    SPI0_MULTI_CS_CTRL(OFF);
-}
-
-void spi_format (spi_t *obj, int bits, int mode, int slave)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-    PHAL_SSI_OP pHalSsiOp;
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    pHalSsiOp = &obj->spi_op;
-
-    pHalSsiAdaptor->DataFrameSize = (bits - 1);
-
-    /*
-     * mode | POL PHA
-     * -----+--------
-     *   0  |  0   0
-     *   1  |  0   1
-     *   2  |  1   0
-     *   3  |  1   1
-     *
-     * SCPOL_INACTIVE_IS_LOW  = 0,
-     * SCPOL_INACTIVE_IS_HIGH = 1
-     *
-     * SCPH_TOGGLES_IN_MIDDLE = 0,
-     * SCPH_TOGGLES_AT_START  = 1
-     */
-    switch (mode)
-    {
-        case 0:
-            pHalSsiAdaptor->SclkPolarity = SCPOL_INACTIVE_IS_LOW;
-            pHalSsiAdaptor->SclkPhase    = SCPH_TOGGLES_IN_MIDDLE;
-            break;
-        case 1:
-            pHalSsiAdaptor->SclkPolarity = SCPOL_INACTIVE_IS_LOW;
-            pHalSsiAdaptor->SclkPhase    = SCPH_TOGGLES_AT_START;
-            break;
-        case 2:
-            pHalSsiAdaptor->SclkPolarity = SCPOL_INACTIVE_IS_HIGH;
-            pHalSsiAdaptor->SclkPhase    = SCPH_TOGGLES_IN_MIDDLE;
-            break;
-        case 3:
-            pHalSsiAdaptor->SclkPolarity = SCPOL_INACTIVE_IS_HIGH;
-            pHalSsiAdaptor->SclkPhase    = SCPH_TOGGLES_AT_START;
-            break;
-        default:  // same as 3
-            pHalSsiAdaptor->SclkPolarity = SCPOL_INACTIVE_IS_HIGH;
-            pHalSsiAdaptor->SclkPhase    = SCPH_TOGGLES_AT_START;
-            break;
-    }
-
-    if (slave == 1) {
-        if (pHalSsiAdaptor->Index == 0) {
-            pHalSsiAdaptor->Role = SSI_SLAVE;
-            pHalSsiAdaptor->SlaveOutputEnable = SLV_TXD_ENABLE;  // <-- Slave only
-            DBG_SSI_INFO("SPI0 is as slave\n");
-        } else {
-            DBG_SSI_ERR("The SPI%d cannot work as Slave mode, only SPI0 does.\r\n", pHalSsiAdaptor->Index);
-            pHalSsiAdaptor->Role = SSI_MASTER;
-        }
-    } else {
-        pHalSsiAdaptor->Role = SSI_MASTER;
-    }
-    pHalSsiOp->HalSsiSetDeviceRole(pHalSsiAdaptor, pHalSsiAdaptor->Role);
-
-#ifdef CONFIG_GPIO_EN
-    if (pHalSsiAdaptor->Role == SSI_SLAVE) {
-        if (pHalSsiAdaptor->SclkPolarity == SCPOL_INACTIVE_IS_LOW) {
-            HAL_GPIO_PullCtrl((u32)obj->sclk, hal_PullDown);
-        } else {
-            HAL_GPIO_PullCtrl((u32)obj->sclk, hal_PullUp);
-        }
-    }
-#endif
-    HalSsiSetFormat(pHalSsiAdaptor);
-}
-
-void spi_frequency (spi_t *obj, int hz)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    HalSsiSetSclk(pHalSsiAdaptor, (u32)hz);
-}
-
-static inline void ssi_write (spi_t *obj, int value)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-    PHAL_SSI_OP pHalSsiOp;
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    pHalSsiOp = &obj->spi_op;
-
-    while (!pHalSsiOp->HalSsiWriteable(pHalSsiAdaptor));
-    pHalSsiOp->HalSsiWrite((VOID*)pHalSsiAdaptor, value);
-}
-
-static inline int ssi_read(spi_t *obj)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-    PHAL_SSI_OP pHalSsiOp;
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    pHalSsiOp = &obj->spi_op;
-
-    while (!pHalSsiOp->HalSsiReadable(pHalSsiAdaptor));
-    return (int)pHalSsiOp->HalSsiRead(pHalSsiAdaptor);
-}
-
-int spi_master_write (spi_t *obj, int value)
-{
-    ssi_write(obj, value);
-    return ssi_read(obj);
-}
-
-int spi_master_block_write(spi_t *obj, const char *tx_buffer, int tx_length,
-                           char *rx_buffer, int rx_length, char write_fill)
-{
-    int total = (tx_length > rx_length) ? tx_length : rx_length;
-
-    for (int i = 0; i < total; i++) {
-        char out = (i < tx_length) ? tx_buffer[i] : write_fill;
-        char in = spi_master_write(obj, out);
-        if (i < rx_length) {
-            rx_buffer[i] = in;
-        }
-    }
-
-    return total;
-}
-
-int spi_slave_receive (spi_t *obj)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-    PHAL_SSI_OP pHalSsiOp;
-    int Readable;
-    int Busy;
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    pHalSsiOp = &obj->spi_op;
-
-    Readable = pHalSsiOp->HalSsiReadable(pHalSsiAdaptor);
-    Busy     = (int)pHalSsiOp->HalSsiBusy(pHalSsiAdaptor);
-    return ((Readable && !Busy) ? 1 : 0);
-}
-
-int spi_slave_read (spi_t *obj)
-{
-    return ssi_read(obj);
-}
-
-void spi_slave_write (spi_t *obj, int value)
-{
-    ssi_write(obj, value);
-}
-
-int spi_busy (spi_t *obj)
-{
-    PHAL_SSI_ADAPTOR pHalSsiAdaptor;
-    PHAL_SSI_OP pHalSsiOp;
-
-    pHalSsiAdaptor = &obj->spi_adp;
-    pHalSsiOp = &obj->spi_op;
-
-    return (int)pHalSsiOp->HalSsiBusy(pHalSsiAdaptor);
-}
-
-