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/* ... */
#include "main.h"
Includes
MSC_DEMO_StateMachine msc_demo;
uint8_t prev_select = 0;
uint8_t *MSC_main_menu[] =
{
(uint8_t *)" 1 - File Operations ",
(uint8_t *)" 2 - Explorer Disk ",
(uint8_t *)" 3 - Re-Enumerate ",
...};
Private variables
static void MSC_SelectItem(uint8_t **menu, uint8_t item);
static void MSC_DEMO_ProbeKey(JOYState_TypeDef state);
Private function prototypes
/* ... */
void Menu_Init(void)
{
BSP_LCD_SetTextColor(LCD_COLOR_GREEN);
BSP_LCD_DisplayStringAtLine(15, (uint8_t *)"Use [Joystick Left/Right] to scroll up/down");
BSP_LCD_DisplayStringAtLine(16, (uint8_t *)"Use [Joystick Up/Down] to scroll MSC menu");
msc_demo.state = MSC_DEMO_IDLE;
MSC_SelectItem(MSC_main_menu, 0);
}{ ... }
/* ... */
void MSC_MenuProcess(void)
{
switch(msc_demo.state)
{
case MSC_DEMO_IDLE:
MSC_SelectItem(MSC_main_menu, 0);
msc_demo.state = MSC_DEMO_WAIT;
msc_demo.select = 0;
break;
case MSC_DEMO_IDLE:
case MSC_DEMO_WAIT:
if(msc_demo.select != prev_select)
{
prev_select = msc_demo.select;
MSC_SelectItem(MSC_main_menu, msc_demo.select & 0x7F);
if(msc_demo.select & 0x80)
{
switch(msc_demo.select & 0x7F)
{
case 0:
msc_demo.state = MSC_DEMO_FILE_OPERATIONS;
break;
case 0:
case 1:
msc_demo.state = MSC_DEMO_EXPLORER;
break;
case 1:
case 2:
msc_demo.state = MSC_REENUMERATE;
break;
case 2:
default:
break;default
}switch (msc_demo.select & 0x7F) { ... }
}if (msc_demo.select & 0x80) { ... }
}if (msc_demo.select != prev_select) { ... }
break;
case MSC_DEMO_WAIT:
case MSC_DEMO_FILE_OPERATIONS:
if(Appli_state == APPLICATION_READY)
{
MSC_File_Operations();
}if (Appli_state == APPLICATION_READY) { ... }
msc_demo.state = MSC_DEMO_WAIT;
break;
case MSC_DEMO_FILE_OPERATIONS:
case MSC_DEMO_EXPLORER:
if(Appli_state == APPLICATION_READY)
{
Explore_Disk("0:/", 1);
}if (Appli_state == APPLICATION_READY) { ... }
msc_demo.state = MSC_DEMO_WAIT;
break;
case MSC_DEMO_EXPLORER:
case MSC_REENUMERATE:
USBH_ReEnumerate(&hUSBHost);
msc_demo.state = MSC_DEMO_WAIT;
break;
case MSC_REENUMERATE:
default:
break;default
}switch (msc_demo.state) { ... }
msc_demo.select &= 0x7F;
}{ ... }
/* ... */
static void MSC_SelectItem(uint8_t **menu, uint8_t item)
{
BSP_LCD_SetTextColor(LCD_COLOR_WHITE);
switch(item)
{
case 0:
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(17, menu[0]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(18, menu[1]);
BSP_LCD_DisplayStringAtLine(19, menu[2]);
break;
case 0:
case 1:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(17, menu[0]);
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(18, menu[1]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(19, menu[2]);
break;
case 1:
case 2:
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(17, menu[0]);
BSP_LCD_SetBackColor(LCD_COLOR_BLUE);
BSP_LCD_DisplayStringAtLine(18, menu[1]);
BSP_LCD_SetBackColor(LCD_COLOR_MAGENTA);
BSP_LCD_DisplayStringAtLine(19, menu[2]);
break;case 2:
}switch (item) { ... }
BSP_LCD_SetBackColor(LCD_COLOR_BLACK);
}{ ... }
/* ... */
static void MSC_DEMO_ProbeKey(JOYState_TypeDef state)
{
if((state == JOY_UP) && (msc_demo.select > 0))
{
msc_demo.select--;
}if ((state == JOY_UP) && (msc_demo.select > 0)) { ... }
else if((state == JOY_DOWN) && (msc_demo.select < 2))
{
msc_demo.select++;
}else if ((state == JOY_DOWN) && (msc_demo.select < 2)) { ... }
else if(state == JOY_SEL)
{
msc_demo.select |= 0x80;
}else if (state == JOY_SEL) { ... }
}{ ... }
/* ... */
void HAL_GPIO_EXTI_Callback(uint16_t GPIO_Pin)
{
static JOYState_TypeDef JoyState = JOY_NONE;
if(GPIO_Pin == GPIO_PIN_2)
{
JoyState = BSP_JOY_GetState();
MSC_DEMO_ProbeKey(JoyState);
switch(JoyState)
{
case JOY_LEFT:
LCD_LOG_ScrollBack();
break;
case JOY_LEFT:
case JOY_RIGHT:
LCD_LOG_ScrollForward();
break;
case JOY_RIGHT:
default:
break; default
}switch (JoyState) { ... }
BSP_IO_ITClear(JOY_ALL_PINS);
}if (GPIO_Pin == GPIO_PIN_2) { ... }
}{ ... }