diff options
Diffstat (limited to 'bsp/at32/libraries/usbfs_library/src/usbh_int.c')
| -rw-r--r-- | bsp/at32/libraries/usbfs_library/src/usbh_int.c | 540 |
1 files changed, 540 insertions, 0 deletions
diff --git a/bsp/at32/libraries/usbfs_library/src/usbh_int.c b/bsp/at32/libraries/usbfs_library/src/usbh_int.c new file mode 100644 index 0000000000..1b873eca86 --- /dev/null +++ b/bsp/at32/libraries/usbfs_library/src/usbh_int.c @@ -0,0 +1,540 @@ +/** + ************************************************************************** + * @file usbh_int.c + * @brief usb host interrupt request + ************************************************************************** + * Copyright notice & Disclaimer + * + * The software Board Support Package (BSP) that is made available to + * download from Artery official website is the copyrighted work of Artery. + * Artery authorizes customers to use, copy, and distribute the BSP + * software and its related documentation for the purpose of design and + * development in conjunction with Artery microcontrollers. Use of the + * software is governed by this copyright notice and the following disclaimer. + * + * THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES, + * GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS, + * TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR + * STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS, + * INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. + * + ************************************************************************** + */ +#include "usbh_int.h" + +/** @defgroup USBH_drivers_interrupt + * @brief usb host interrupt + * @{ + */ + +/** @defgroup USBH_int_private_functions + * @{ + */ + +/** + * @brief usb host interrupt handler + * @param otgdev: to the structure of otg_core_type + * @retval none + */ +void usbh_irq_handler(otg_core_type *otgdev) +{ + otg_global_type *usbx = otgdev->usb_reg; + usbh_core_type *uhost = &otgdev->host; + uint32_t intsts = usb_global_get_all_interrupt(usbx); + + if(usbx->gintsts_bit.curmode == 1) + { + if(intsts & USB_OTG_HCH_FLAG) + { + usbh_hch_handler(uhost); + usb_global_clear_interrupt(usbx, USB_OTG_HCH_FLAG); + } + if(intsts & USB_OTG_SOF_FLAG) + { + usbh_sof_handler(uhost); + usb_global_clear_interrupt(usbx, USB_OTG_SOF_FLAG); + } + if(intsts & USB_OTG_MODEMIS_FLAG) + { + usb_global_clear_interrupt(usbx, USB_OTG_MODEMIS_FLAG); + } + if(intsts & USB_OTG_WKUP_FLAG) + { + usbh_wakeup_handler(uhost); + usb_global_clear_interrupt(usbx, USB_OTG_WKUP_FLAG); + } + while(usbx->gintsts & USB_OTG_RXFLVL_FLAG) + { + usbh_rx_qlvl_handler(uhost); + usb_global_clear_interrupt(usbx, USB_OTG_RXFLVL_FLAG); + } + if(intsts & USB_OTG_DISCON_FLAG) + { + usbh_disconnect_handler(uhost); + usb_global_clear_interrupt(usbx, USB_OTG_DISCON_FLAG); + } + if(intsts & USB_OTG_PRT_FLAG) + { + usbh_port_handler(uhost); + } + if(intsts & USB_OTG_INCOMPIP_INCOMPISOOUT_FLAG) + { + usb_global_clear_interrupt(usbx, USB_OTG_INCOMPIP_INCOMPISOOUT_FLAG); + } + if(intsts & USB_OTG_INCOMISOIN_FLAG) + { + usb_global_clear_interrupt(usbx, USB_OTG_INCOMISOIN_FLAG); + } + if(intsts & USB_OTG_PTXFEMP_FLAG) + { + usb_global_clear_interrupt(usbx, USB_OTG_PTXFEMP_FLAG); + } + if(intsts & USB_OTG_ISOOUTDROP_FLAG) + { + usb_global_clear_interrupt(usbx, USB_OTG_ISOOUTDROP_FLAG); + } + + } +} + +/** + * @brief usb host wakeup handler + * @param uhost: to the structure of usbh_core_type + * @retval none + */ +void usbh_wakeup_handler(usbh_core_type *uhost) +{ + uhost->global_state = USBH_WAKEUP; +} + +/** + * @brief usb host sof handler + * @param uhost: to the structure of usbh_core_type + * @retval none + */ +void usbh_sof_handler(usbh_core_type *uhost) +{ + uhost->timer ++; +} + +/** + * @brief usb host disconnect handler + * @param uhost: to the structure of usbh_core_type + * @retval none + */ +void usbh_disconnect_handler(usbh_core_type *uhost) +{ + otg_global_type *usbx = uhost->usb_reg; + + uint8_t i_index; + + usb_host_disable(usbx); + + uhost->conn_sts = 0; + + uhost->global_state = USBH_DISCONNECT; + + for(i_index = 0; i_index < USB_HOST_CHANNEL_NUM; i_index ++) + { + usbh_free_channel(uhost, i_index); + } + usbh_fsls_clksel(usbx, USB_HCFG_CLK_48M); + + usbh_disconnect_callback(uhost); +} + +/** + * @brief usb host in transfer request handler + * @param uhost: to the structure of usbh_core_type + * @param chn: channel number + * @retval none + */ +void usbh_hch_in_handler(usbh_core_type *uhost, uint8_t chn) +{ + otg_global_type *usbx = uhost->usb_reg; + otg_hchannel_type *usb_chh = USB_CHL(usbx, chn); + uint32_t hcint_value = usb_chh->hcint & usb_chh->hcintmsk; + + if( hcint_value & USB_OTG_HC_ACK_FLAG) + { + usb_chh->hcint = USB_OTG_HC_ACK_FLAG; + } + else if(hcint_value & USB_OTG_HC_STALL_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_chh->hcint = USB_OTG_HC_NAK_FLAG | USB_OTG_HC_STALL_FLAG; + uhost->hch[chn].state = HCH_STALL; + usb_hch_halt(usbx, chn); + } + else if(hcint_value & USB_OTG_HC_DTGLERR_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + usb_chh->hcint = USB_OTG_HC_DTGLERR_FLAG | USB_OTG_HC_NAK_FLAG; + uhost->hch[chn].state = HCH_DATATGLERR; + } + + else if(hcint_value & USB_OTG_HC_FRMOVRRUN_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + usb_chh->hcint = USB_OTG_HC_FRMOVRRUN_FLAG; + } + else if(hcint_value & USB_OTG_HC_XFERC_FLAG) + { + uhost->hch[chn].state = HCH_XFRC; + usb_chh->hcint = USB_OTG_HC_XFERC_FLAG; + + if(usb_chh->hcchar_bit.eptype == EPT_BULK_TYPE || usb_chh->hcchar_bit.eptype == EPT_CONTROL_TYPE) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + usb_chh->hcint = USB_OTG_HC_NAK_FLAG; + } + else if(usb_chh->hcchar_bit.eptype == EPT_INT_TYPE) + { + usb_chh->hcchar_bit.oddfrm = TRUE; + uhost->urb_state[chn] = URB_DONE; + + usbd_notify_urbchange_callback(uhost, chn, uhost->urb_state[chn]); + } + else if(usb_chh->hcchar_bit.eptype == EPT_ISO_TYPE) + { + uhost->urb_state[chn] = URB_DONE; + usbd_notify_urbchange_callback(uhost, chn, uhost->urb_state[chn]); + } + uhost->hch[chn].toggle_in ^= 1; + } + else if(hcint_value & USB_OTG_HC_CHHLTD_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = FALSE; + if(uhost->hch[chn].state == HCH_XFRC ) + { + uhost->urb_state[chn] = URB_DONE; + } + else if(uhost->hch[chn].state == HCH_STALL) + { + uhost->urb_state[chn] = URB_STALL; + } + else if(uhost->hch[chn].state == HCH_XACTERR || + uhost->hch[chn].state == HCH_DATATGLERR) + { + uhost->err_cnt[chn] ++; + if(uhost->err_cnt[chn] > 3) + { + uhost->urb_state[chn] = URB_ERROR; + uhost->err_cnt[chn] = 0; + } + else + { + uhost->urb_state[chn] = URB_NOTREADY; + } + usb_chh->hcchar_bit.chdis = FALSE; + usb_chh->hcchar_bit.chena = TRUE; + } + else if(uhost->hch[chn].state == HCH_NAK) + { + usb_chh->hcchar_bit.chdis = FALSE; + usb_chh->hcchar_bit.chena = TRUE; + uhost->urb_state[chn] = URB_NOTREADY; + } + usb_chh->hcint = USB_OTG_HC_CHHLTD_FLAG; + usbd_notify_urbchange_callback(uhost, chn, uhost->urb_state[chn]); + } + else if(hcint_value & USB_OTG_HC_XACTERR_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + uhost->hch[chn].state = HCH_XACTERR; + usb_hch_halt(usbx, chn); + uhost->err_cnt[chn] ++; + usb_chh->hcint = USB_OTG_HC_XACTERR_FLAG; + } + else if(hcint_value & USB_OTG_HC_NAK_FLAG) + { + if(usb_chh->hcchar_bit.eptype == EPT_INT_TYPE) + { + uhost->err_cnt[chn] = 0; + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + } + else if(usb_chh->hcchar_bit.eptype == EPT_BULK_TYPE || + usb_chh->hcchar_bit.eptype == EPT_CONTROL_TYPE) + { + uhost->err_cnt[chn] = 0; + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + } + uhost->hch[chn].state = HCH_NAK; + usb_chh->hcint = USB_OTG_HC_NAK_FLAG; + } + else if(hcint_value & USB_OTG_HC_BBLERR_FLAG) + { + usb_chh->hcint = USB_OTG_HC_BBLERR_FLAG; + } +} + +/** + * @brief usb host out transfer request handler + * @param uhost: to the structure of usbh_core_type + * @param chn: channel number + * @retval none + */ +void usbh_hch_out_handler(usbh_core_type *uhost, uint8_t chn) +{ + otg_global_type *usbx = uhost->usb_reg; + otg_hchannel_type *usb_chh = USB_CHL(usbx, chn); + uint32_t hcint_value = usb_chh->hcint & usb_chh->hcintmsk; + + if( hcint_value & USB_OTG_HC_ACK_FLAG) + { + usb_chh->hcint = USB_OTG_HC_ACK_FLAG; + } + else if( hcint_value & USB_OTG_HC_FRMOVRRUN_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + usb_chh->hcint = USB_OTG_HC_FRMOVRRUN_FLAG; + } + else if( hcint_value & USB_OTG_HC_XFERC_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + uhost->hch[chn].state = HCH_XFRC; + usb_chh->hcint = USB_OTG_HC_XFERC_FLAG; + } + else if( hcint_value & USB_OTG_HC_STALL_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_chh->hcint = USB_OTG_HC_STALL_FLAG; + uhost->hch[chn].state = HCH_STALL; + usb_hch_halt(usbx, chn); + } + else if( hcint_value & USB_OTG_HC_DTGLERR_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + usb_hch_halt(usbx, chn); + usb_chh->hcint = USB_OTG_HC_DTGLERR_FLAG | USB_OTG_HC_NAK_FLAG; + uhost->hch[chn].state = HCH_DATATGLERR; + } + else if( hcint_value & USB_OTG_HC_CHHLTD_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = FALSE; + if(uhost->hch[chn].state == HCH_XFRC) + { + uhost->urb_state[chn] = URB_DONE; + if(uhost->hch[chn].ept_type == EPT_BULK_TYPE || + uhost->hch[chn].ept_type == EPT_INT_TYPE) + { + uhost->hch[chn].toggle_out ^= 1; + } + } + else if(uhost->hch[chn].state == HCH_NAK) + { + uhost->urb_state[chn] = URB_NOTREADY; + } + else if(uhost->hch[chn].state == HCH_STALL) + { + uhost->hch[chn].urb_sts = URB_STALL; + } + else if(uhost->hch[chn].state == HCH_XACTERR || + uhost->hch[chn].state == HCH_DATATGLERR) + { + uhost->err_cnt[chn] ++; + if(uhost->err_cnt[chn] > 3) + { + uhost->urb_state[chn] = URB_ERROR; + uhost->err_cnt[chn] = 0; + usbd_notify_urbchange_callback(uhost, chn, uhost->urb_state[chn]); + } + else + { + uhost->urb_state[chn] = URB_NOTREADY; + } + + usb_chh->hcchar_bit.chdis = FALSE; + usb_chh->hcchar_bit.chena = TRUE; + } + usb_chh->hcint = USB_OTG_HC_CHHLTD_FLAG; + usbd_notify_urbchange_callback(uhost, chn, uhost->urb_state[chn]); + } + else if( hcint_value & USB_OTG_HC_XACTERR_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + uhost->err_cnt[chn] ++; + uhost->hch[chn].state = HCH_XACTERR; + usb_hch_halt(usbx, chn); + usb_chh->hcint = USB_OTG_HC_XACTERR_FLAG | USB_OTG_HC_NAK_FLAG; + } + else if( hcint_value & USB_OTG_HC_NAK_FLAG) + { + usb_chh->hcintmsk_bit.chhltdmsk = TRUE; + uhost->err_cnt[chn] = 0; + usb_hch_halt(usbx, chn); + uhost->hch[chn].state = HCH_NAK; + usb_chh->hcint = USB_OTG_HC_NAK_FLAG; + } +} + +/** + * @brief usb host channel request handler + * @param uhost: to the structure of usbh_core_type + * @retval none + */ +void usbh_hch_handler(usbh_core_type *uhost) +{ + otg_global_type *usbx = uhost->usb_reg; + otg_host_type *usb_host = OTG_HOST(usbx); + uint32_t intsts, i_index; + + intsts = usb_host->haint & 0xFFFF; + for(i_index = 0; i_index < 16; i_index ++) + { + if(intsts & (1 << i_index)) + { + if(USB_CHL(usbx, i_index)->hcchar_bit.eptdir) + { + //hc in + usbh_hch_in_handler(uhost, i_index); + } + else + { + //hc out + usbh_hch_out_handler(uhost, i_index); + } + } + } +} + +/** + * @brief usb host rx buffer not empty request handler + * @param uhost: to the structure of usbh_core_type + * @retval none + */ +void usbh_rx_qlvl_handler(usbh_core_type *uhost) +{ + uint8_t chn; + uint32_t pktsts; + uint32_t pktcnt; + uint32_t tmp; + otg_hchannel_type *ch; + otg_global_type *usbx = uhost->usb_reg; + + usbx->gintmsk_bit.rxflvlmsk = 0; + + tmp = usbx->grxstsp; + chn = tmp & 0xF; + pktsts = (tmp >> 17) & 0xF; + pktcnt = (tmp >> 4) & 0x7FF; + ch = USB_CHL(usbx, chn); + switch(pktsts) + { + case PKTSTS_IN_DATA_PACKET_RECV: + if(pktcnt > 0 && (uhost->hch[chn].trans_buf) != 0) + { + usb_read_packet(usbx, uhost->hch[chn].trans_buf, chn, pktcnt); + uhost->hch[chn].trans_buf += pktcnt; + uhost->hch[chn].trans_count += pktcnt; + + if(ch->hctsiz_bit.pktcnt > 0) + { + ch->hcchar_bit.chdis = FALSE; + ch->hcchar_bit.chena = TRUE; + uhost->hch[chn].toggle_in ^= 1; + } + } + break; + case PKTSTS_IN_TRANSFER_COMPLETE: + break; + case PKTSTS_DATA_BIT_ERROR: + break; + case PKTSTS_CHANNEL_STOP: + break; + default: + break; + + } + usbx->gintmsk_bit.rxflvlmsk = 1; +} + +/** + * @brief usb host port request handler + * @param uhost: to the structure of usbh_core_type + * @retval none + */ +void usbh_port_handler(usbh_core_type *uhost) +{ + otg_global_type *usbx = uhost->usb_reg; + otg_host_type *usb_host = OTG_HOST(usbx); + + uint32_t prt = 0, prt_0; + + prt = usb_host->hprt; + prt_0 = prt; + + prt_0 &= ~(USB_OTG_HPRT_PRTENA | USB_OTG_HPRT_PRTENCHNG | + USB_OTG_HPRT_PRTOVRCACT | USB_OTG_HPRT_PRTCONDET); + if(prt & USB_OTG_HPRT_PRTCONDET) + { + if(prt & USB_OTG_HPRT_PRTCONSTS) + { + /* connect callback */ + uhost->conn_sts = 1; + } + + usbh_connect_callback(uhost); + prt_0 |= USB_OTG_HPRT_PRTCONDET; + } + + if(prt & USB_OTG_HPRT_PRTENCHNG) + { + prt_0 |= USB_OTG_HPRT_PRTENCHNG; + + if(prt & USB_OTG_HPRT_PRTENA) + { + if((prt & USB_OTG_HPRT_PRTSPD) == (USB_PRTSPD_LOW_SPEED << 17)) + { + usbh_fsls_clksel(usbx, USB_HCFG_CLK_6M); + } + else + { + usbh_fsls_clksel(usbx, USB_HCFG_CLK_48M); + } + /* connect callback */ + uhost->port_enable = 1; + } + else + { + /* clean up hprt */ + uhost->port_enable = 0; + } + } + + if(prt & USB_OTG_HPRT_PRTOVRCACT) + { + prt_0 |= USB_OTG_HPRT_PRTOVRCACT; + } + + usb_host->hprt = prt_0; +} + +__weak void usbh_connect_callback(usbh_core_type *uhost) +{ +} + +__weak void usbh_disconnect_callback(usbh_core_type *uhost) +{ +} + +__weak void usbd_notify_urbchange_callback(usbh_core_type *uhost, uint8_t chnum, urb_sts_type sts) +{ +} + +/** + * @} + */ + +/** + * @} + */ + |