145 lines
3.2 KiB
C
145 lines
3.2 KiB
C
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/*************************************************************/
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/** @file: iAP.c
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@brief: 苹果iAP 协议
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@details:
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@author: Bingquan Cai
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@date: 2013-10-11,09:34
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@note:
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*/
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/*************************************************************/
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#include "apple_dock/iAP.h"
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#include "apple_dock/iAP2.h"
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#include "apple_dock/iAP_device.h"
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#include "apple_dock/iAP_iic.h"
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/* #include "usb_global_var.h" */
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/* #include "usb_driver.h" */
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/* #include "usb_slave_scsi.h" */
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#include "app_config.h"
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#include "init.h"
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#if TCFG_USB_APPLE_DOCK_EN
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static void *iap_usb_hdl = NULL;
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#if USB_MALLOC_ENABLE
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#else
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static u8 USB_IAP_SEND_BUF[0x400] SEC(.mass_storage) __attribute__((aligned(4)));
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static u8 USB_IAP_RECV_BUF[0x200] SEC(.mass_storage) __attribute__((aligned(4)));
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#endif
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extern u8 MCU_SRAMToUSB_app(void *hdl, u8 *pBuf, u16 uCount);
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extern u8 MCU_USBToSRAM_app(void *hdl, u8 *pBuf, u16 uCount);
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static void iAP_ZLP(void)
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{
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delay(50000);
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}
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static u8 iAP_bulk_in_process(void)
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{
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//iAP_printf_buf(iAP_var_pTxBuf, iAP_var_wLength);
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return MCU_SRAMToUSB_app(iap_usb_hdl, iAP_var_pTxBuf, iAP_var_wLength);
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}
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static u8 iAP_bulk_out_process(void)
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{
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u8 len;
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len = MCU_USBToSRAM_app(iap_usb_hdl, iAP_var_pRxBuf, 0x200);
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iAP_var_wLength = len;
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/* iAP_printf_buf(iAP_var_pRxBuf, len); */
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return len;
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}
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u8 iAP_transport(u8 type)
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{
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u8 res = TRUE;
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if (type & BIT(IAP_TRANSPORT_ZLP)) {
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iAP_ZLP();
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}
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if (type & BIT(IAP_TRANSPORT_IN)) {
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res = iAP_bulk_in_process();
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}
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if (type & BIT(IAP_TRANSPORT_OUT)) {
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u8 len = iAP_bulk_out_process();
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if (type & BIT(IAP_TRANSPORT_OUT_LEN)) {
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return len;
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}
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}
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return res;
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}
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u8 apple_mfi_link(void *hdl)
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{
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u8 res;
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if (MFI_CHIP_OFFLINE == chip_online_status) {
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iAP_deg_str("mfi chip offline\n");
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return NO_MFI_CHIP;
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}
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if (MFI_PROCESS_READY != mfi_pass_status) {
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return mfi_pass_status;
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}
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iap_usb_hdl = hdl;
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//Reset session Tx & Rx buffer
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#if USB_MALLOC_ENABLE
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if (iAP_var_pTxBuf == NULL) {
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iAP_var_pTxBuf = malloc(0x400);
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}
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if (iAP_var_pRxBuf == NULL) {
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iAP_var_pRxBuf = malloc(0x200);
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}
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#else
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iAP_var_pTxBuf = USB_IAP_SEND_BUF;
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iAP_var_pRxBuf = USB_IAP_RECV_BUF;
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#endif
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memset(iAP_var_pTxBuf, 0, 0x400);
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memset(iAP_var_pRxBuf, 0, 0x200);
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/*Detect iAP support protocol type*/
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if (IAP2_VERSIONS == iAP_support()) {
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iAP_deg_str("iAP2 support!\n");
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/* iAP_deg_str("iap2"); */
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/* os_time_dly(2); */
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res = iAP2_link() + IAP2_LINK_ERR;
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if (IAP2_LINK_SUCC == res) {
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mfi_pass_status = MFI_PROCESS_PASS;
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}
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return res;
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}
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return IAP2_LINK_ERR;
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}
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void apple_mfi_unlink(void)
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{
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#if USB_MALLOC_ENABLE
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local_irq_disable();
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if (iAP_var_pTxBuf) {
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free(iAP_var_pTxBuf);
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iAP_var_pTxBuf = NULL;
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}
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if (iAP_var_pRxBuf) {
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free(iAP_var_pRxBuf);
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iAP_var_pRxBuf = NULL;
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}
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local_irq_enable();
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#endif
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}
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static int apple_dock_init(void)
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{
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apple_link_init();
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apple_mfi_chip_online_check_api();
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return 0;
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}
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early_initcall(apple_dock_init);
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#endif /* TCFG_USB_APPLE_DOCK_EN */
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