423 lines
13 KiB
C
423 lines
13 KiB
C
/**
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******************************************************************************
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* @file dcd_stm32f0_pvt_st.h
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* @brief DCD utilities from ST code
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******************************************************************************
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* @attention
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*
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* <h2><center>© COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
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* <h2><center>© parts COPYRIGHT(c) N Conrad</center></h2>
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. Neither the name of STMicroelectronics nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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**********/
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// This file contains source copied from ST's HAL, and thus should have their copyright statement.
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// PMA_LENGTH is PMA buffer size in bytes.
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// On 512-byte devices, access with a stride of two words (use every other 16-bit address)
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// On 1024-byte devices, access with a stride of one word (use every 16-bit address)
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#ifndef PORTABLE_ST_STM32F0_DCD_STM32F0_FSDEV_PVT_ST_H_
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#define PORTABLE_ST_STM32F0_DCD_STM32F0_FSDEV_PVT_ST_H_
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#if defined(STM32F042x6) || \
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defined(STM32F070x6) || defined(STM32F070xB) || \
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defined(STM32F072xB) || \
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defined(STM32F078xx)
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#include "stm32f0xx.h"
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#define PMA_LENGTH (1024u)
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// F0x2 models are crystal-less
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// All have internal D+ pull-up
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// 070RB: 2 x 16 bits/word memory LPM Support, BCD Support
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// PMA dedicated to USB (no sharing with CAN)
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#elif defined(STM32F1_FSDEV)
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#include "stm32f1xx.h"
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#define PMA_LENGTH (512u)
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// NO internal Pull-ups
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// *B, and *C: 2 x 16 bits/word
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// F1 names this differently from the rest
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#define USB_CNTR_LPMODE USB_CNTR_LP_MODE
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#elif defined(STM32F302xB) || defined(STM32F302xC) || \
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defined(STM32F303xB) || defined(STM32F303xC) || \
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defined(STM32F373xC)
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#include "stm32f3xx.h"
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#define PMA_LENGTH (512u)
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// NO internal Pull-ups
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// *B, and *C: 1 x 16 bits/word
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// PMA dedicated to USB (no sharing with CAN)
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#elif defined(STM32F302x6) || defined(STM32F302x8) || \
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defined(STM32F302xD) || defined(STM32F302xE) || \
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defined(STM32F303xD) || defined(STM32F303xE)
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#include "stm32f3xx.h"
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#define PMA_LENGTH (1024u)
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// NO internal Pull-ups
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// *6, *8, *D, and *E: 2 x 16 bits/word LPM Support
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// When CAN clock is enabled, USB can use first 768 bytes ONLY.
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#elif CFG_TUSB_MCU == OPT_MCU_STM32L0
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#include "stm32l0xx.h"
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#define PMA_LENGTH (1024u)
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#elif CFG_TUSB_MCU == OPT_MCU_STM32L1
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#include "stm32l1xx.h"
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#define PMA_LENGTH (512u)
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#elif CFG_TUSB_MCU == OPT_MCU_STM32G4
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#include "stm32g4xx.h"
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#define PMA_LENGTH (1024u)
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#elif CFG_TUSB_MCU == OPT_MCU_STM32WB
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#include "stm32wbxx.h"
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#define PMA_LENGTH (1024u)
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/* ST provided header has incorrect value */
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#undef USB_PMAADDR
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#define USB_PMAADDR USB1_PMAADDR
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#else
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#error You are using an untested or unimplemented STM32 variant. Please update the driver.
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// This includes L1x0, L1x1, L1x2, L4x2 and L4x3, G1x1, G1x3, and G1x4
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#endif
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// For purposes of accessing the packet
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#if ((PMA_LENGTH) == 512u)
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#define PMA_STRIDE (2u)
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#elif ((PMA_LENGTH) == 1024u)
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#define PMA_STRIDE (1u)
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#endif
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// And for type-safety create a new macro for the volatile address of PMAADDR
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// The compiler should warn us if we cast it to a non-volatile type?
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// Volatile is also needed to prevent the optimizer from changing access to 32-bit (as 32-bit access is forbidden)
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static __IO uint16_t * const pma = (__IO uint16_t*)USB_PMAADDR;
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// prototypes
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static inline __IO uint16_t* pcd_ep_rx_cnt_ptr(USB_TypeDef * USBx, uint32_t bEpNum);
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static inline __IO uint16_t* pcd_ep_tx_cnt_ptr(USB_TypeDef * USBx, uint32_t bEpNum);
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static inline void pcd_set_endpoint(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wRegValue);
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/* SetENDPOINT */
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static inline void pcd_set_endpoint(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wRegValue)
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{
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__O uint16_t *reg = (__O uint16_t *)((&USBx->EP0R) + bEpNum*2u);
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*reg = (uint16_t)wRegValue;
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}
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/* GetENDPOINT */
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static inline uint16_t pcd_get_endpoint(USB_TypeDef * USBx, uint32_t bEpNum) {
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__I uint16_t *reg = (__I uint16_t *)((&USBx->EP0R) + bEpNum*2u);
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return *reg;
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}
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static inline void pcd_set_eptype(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wType)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= (uint32_t)USB_EP_T_MASK;
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regVal |= wType;
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regVal |= USB_EP_CTR_RX | USB_EP_CTR_TX; // These clear on write0, so must set high
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pcd_set_endpoint(USBx, bEpNum, regVal);
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}
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static inline uint32_t pcd_get_eptype(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EP_T_FIELD;
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return regVal;
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}
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/**
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* @brief Clears bit CTR_RX / CTR_TX in the endpoint register.
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @retval None
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*/
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static inline void pcd_clear_rx_ep_ctr(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPREG_MASK;
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regVal &= ~USB_EP_CTR_RX;
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regVal |= USB_EP_CTR_TX; // preserve CTR_TX (clears on writing 0)
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pcd_set_endpoint(USBx, bEpNum, regVal);
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}
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static inline void pcd_clear_tx_ep_ctr(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPREG_MASK;
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regVal &= ~USB_EP_CTR_TX;
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regVal |= USB_EP_CTR_RX; // preserve CTR_RX (clears on writing 0)
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pcd_set_endpoint(USBx, bEpNum,regVal);
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}
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/**
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* @brief gets counter of the tx buffer.
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @retval Counter value
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*/
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static inline uint32_t pcd_get_ep_tx_cnt(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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__I uint16_t *regPtr = pcd_ep_tx_cnt_ptr(USBx, bEpNum);
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return *regPtr & 0x3ffU;
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}
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static inline uint32_t pcd_get_ep_rx_cnt(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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__I uint16_t *regPtr = pcd_ep_rx_cnt_ptr(USBx, bEpNum);
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return *regPtr & 0x3ffU;
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}
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/**
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* @brief Sets counter of rx buffer with no. of blocks.
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* @param dwReg Register
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* @param wCount Counter.
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* @param wNBlocks no. of Blocks.
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* @retval None
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*/
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static inline void pcd_set_ep_cnt_rx_reg(__O uint16_t * pdwReg, size_t wCount) {
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uint32_t wNBlocks;
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if(wCount > 62u)
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{
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wNBlocks = wCount >> 5u;
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if((wCount & 0x1fU) == 0u)
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{
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wNBlocks--;
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}
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wNBlocks = wNBlocks << 10u;
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wNBlocks |= 0x8000u; // Mark block size as 32byte
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*pdwReg = (uint16_t)wNBlocks;
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}
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else
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{
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wNBlocks = wCount >> 1u;
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if((wCount & 0x1U) != 0u)
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{
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wNBlocks++;
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}
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*pdwReg = (uint16_t)((wNBlocks) << 10u);
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}
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}
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/**
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* @brief Sets address in an endpoint register.
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @param bAddr Address.
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* @retval None
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*/
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static inline void pcd_set_ep_address(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t bAddr)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPREG_MASK;
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regVal |= bAddr;
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
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pcd_set_endpoint(USBx, bEpNum,regVal);
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}
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static inline __IO uint16_t * pcd_btable_word_ptr(USB_TypeDef * USBx, size_t x)
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{
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size_t total_word_offset = (((USBx)->BTABLE)>>1) + x;
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total_word_offset *= PMA_STRIDE;
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return &(pma[total_word_offset]);
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}
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// Pointers to the PMA table entries (using the ARM address space)
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static inline __IO uint16_t* pcd_ep_tx_address_ptr(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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return pcd_btable_word_ptr(USBx,(bEpNum)*4u + 0u);
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}
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static inline __IO uint16_t* pcd_ep_tx_cnt_ptr(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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return pcd_btable_word_ptr(USBx,(bEpNum)*4u + 1u);
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}
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static inline __IO uint16_t* pcd_ep_rx_address_ptr(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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return pcd_btable_word_ptr(USBx,(bEpNum)*4u + 2u);
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}
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static inline __IO uint16_t* pcd_ep_rx_cnt_ptr(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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return pcd_btable_word_ptr(USBx,(bEpNum)*4u + 3u);
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}
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static inline void pcd_set_ep_tx_cnt(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wCount)
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{
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*pcd_ep_tx_cnt_ptr(USBx, bEpNum) = (uint16_t)wCount;
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}
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static inline void pcd_set_ep_rx_cnt(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wCount)
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{
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__IO uint16_t *pdwReg = pcd_ep_rx_cnt_ptr((USBx),(bEpNum));
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pcd_set_ep_cnt_rx_reg(pdwReg, wCount);
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}
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/**
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* @brief sets the status for tx transfer (bits STAT_TX[1:0]).
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @param wState new state
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* @retval None
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*/
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static inline void pcd_set_ep_tx_status(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wState)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPTX_DTOGMASK;
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/* toggle first bit ? */
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if((USB_EPTX_DTOG1 & (wState))!= 0U)
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{
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regVal ^= USB_EPTX_DTOG1;
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}
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/* toggle second bit ? */
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if((USB_EPTX_DTOG2 & ((uint32_t)(wState)))!= 0U)
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{
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regVal ^= USB_EPTX_DTOG2;
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}
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
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pcd_set_endpoint(USBx, bEpNum, regVal);
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} /* pcd_set_ep_tx_status */
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/**
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* @brief sets the status for rx transfer (bits STAT_TX[1:0])
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @param wState new state
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* @retval None
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*/
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static inline void pcd_set_ep_rx_status(USB_TypeDef * USBx, uint32_t bEpNum, uint32_t wState)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPRX_DTOGMASK;
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/* toggle first bit ? */
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if((USB_EPRX_DTOG1 & wState)!= 0U)
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{
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regVal ^= USB_EPRX_DTOG1;
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}
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/* toggle second bit ? */
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if((USB_EPRX_DTOG2 & wState)!= 0U)
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{
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regVal ^= USB_EPRX_DTOG2;
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}
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
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pcd_set_endpoint(USBx, bEpNum, regVal);
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} /* pcd_set_ep_rx_status */
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static inline uint32_t pcd_get_ep_rx_status(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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return (regVal & USB_EPRX_STAT) >> (12u);
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} /* pcd_get_ep_rx_status */
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/**
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* @brief Toggles DTOG_RX / DTOG_TX bit in the endpoint register.
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @retval None
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*/
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static inline void pcd_rx_dtog(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPREG_MASK;
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX|USB_EP_DTOG_RX;
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pcd_set_endpoint(USBx, bEpNum, regVal);
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}
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static inline void pcd_tx_dtog(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPREG_MASK;
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX|USB_EP_DTOG_TX;
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pcd_set_endpoint(USBx, bEpNum, regVal);
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}
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/**
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* @brief Clears DTOG_RX / DTOG_TX bit in the endpoint register.
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @retval None
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*/
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static inline void pcd_clear_rx_dtog(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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if((regVal & USB_EP_DTOG_RX) != 0)
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{
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pcd_rx_dtog(USBx,bEpNum);
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}
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}
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static inline void pcd_clear_tx_dtog(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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if((regVal & USB_EP_DTOG_TX) != 0)
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{
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pcd_tx_dtog(USBx,bEpNum);
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}
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}
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/**
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* @brief set & clear EP_KIND bit.
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* @param USBx USB peripheral instance register address.
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* @param bEpNum Endpoint Number.
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* @retval None
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*/
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static inline void pcd_set_ep_kind(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal |= USB_EP_KIND;
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regVal &= USB_EPREG_MASK;
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
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pcd_set_endpoint(USBx, bEpNum, regVal);
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}
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static inline void pcd_clear_ep_kind(USB_TypeDef * USBx, uint32_t bEpNum)
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{
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uint32_t regVal = pcd_get_endpoint(USBx, bEpNum);
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regVal &= USB_EPKIND_MASK;
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regVal |= USB_EP_CTR_RX|USB_EP_CTR_TX;
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pcd_set_endpoint(USBx, bEpNum, regVal);
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}
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// This checks if the device has "LPM"
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#if defined(USB_ISTR_L1REQ)
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#define USB_ISTR_L1REQ_FORCED (USB_ISTR_L1REQ)
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#else
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#define USB_ISTR_L1REQ_FORCED ((uint16_t)0x0000U)
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#endif
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#define USB_ISTR_ALL_EVENTS (USB_ISTR_PMAOVR | USB_ISTR_ERR | USB_ISTR_WKUP | USB_ISTR_SUSP | \
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USB_ISTR_RESET | USB_ISTR_SOF | USB_ISTR_ESOF | USB_ISTR_L1REQ_FORCED )
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// Number of endpoints in hardware
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#define STFSDEV_EP_COUNT (8u)
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#endif /* PORTABLE_ST_STM32F0_DCD_STM32F0_FSDEV_PVT_ST_H_ */
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