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Adding OLED scroll setup functions (#8386)

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* Adding scroll setup functions:

* Clarifying values stored in oled_scroll_speed
This commit is contained in:
brickbots 2020-03-14 14:04:34 -07:00 committed by GitHub
parent 7aa21cc287
commit b5be96f8bb
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3 changed files with 58 additions and 6 deletions
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16
docs/feature_oled_driver.md
View file

@ -261,12 +261,24 @@ void oled_task(void);
// Called at the start of oled_task, weak function overridable by the user
void oled_task_user(void);
// Scrolls the entire display right
// Set the specific 8 lines rows of the screen to scroll.
// 0 is the default for start, and 7 for end, which is the entire
// height of the screen. For 128x32 screens, rows 4-7 are not used.
void oled_scroll_set_area(uint8_t start_line, uint8_t end_line);
// Sets scroll speed, 0-7, fastest to slowest. Default is three.
// Does not take effect until scrolling is either started or restarted
// the ssd1306 supports 8 speeds with the delay
// listed below betwen each frame of the scrolling effect
// 0=2, 1=3, 2=4, 3=5, 4=25, 5=64, 6=128, 7=256
void oled_scroll_set_speed(uint8_t speed);
// Begin scrolling the entire display right
// Returns true if the screen was scrolling or starts scrolling
// NOTE: display contents cannot be changed while scrolling
bool oled_scroll_right(void);
// Scrolls the entire display left
// Begin scrolling the entire display left
// Returns true if the screen was scrolling or starts scrolling
// NOTE: display contents cannot be changed while scrolling
bool oled_scroll_left(void);

36
drivers/oled/oled_driver.c
View file

@ -108,6 +108,9 @@ bool oled_active = false;
bool oled_scrolling = false;
uint8_t oled_rotation = 0;
uint8_t oled_rotation_width = 0;
uint8_t oled_scroll_speed = 0; // this holds the speed after being remapped to ssd1306 internal values
uint8_t oled_scroll_start = 0;
uint8_t oled_scroll_end = 7;
#if OLED_TIMEOUT > 0
uint32_t oled_timeout;
#endif
@ -515,12 +518,37 @@ bool oled_off(void) {
return !oled_active;
}
// Set the specific 8 lines rows of the screen to scroll.
// 0 is the default for start, and 7 for end, which is the entire
// height of the screen. For 128x32 screens, rows 4-7 are not used.
void oled_scroll_set_area(uint8_t start_line, uint8_t end_line) {
oled_scroll_start = start_line;
oled_scroll_end = end_line;
}
void oled_scroll_set_speed(uint8_t speed) {
// Sets the speed for scrolling... does not take effect
// until scrolling is either started or restarted
// the ssd1306 supports 8 speeds
// FrameRate2 speed = 7
// FrameRate3 speed = 4
// FrameRate4 speed = 5
// FrameRate5 speed = 0
// FrameRate25 speed = 6
// FrameRate64 speed = 1
// FrameRate128 speed = 2
// FrameRate256 speed = 3
// for ease of use these are remaped here to be in order
static const uint8_t scroll_remap[8] = {7, 4, 5, 0, 6, 1, 2, 3};
oled_scroll_speed = scroll_remap[speed];
}
bool oled_scroll_right(void) {
// Dont enable scrolling if we need to update the display
// This prevents scrolling of bad data from starting the scroll too early after init
if (!oled_dirty && !oled_scrolling) {
static const uint8_t PROGMEM display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, 0x00, 0x00, 0x0F, 0x00, 0xFF, ACTIVATE_SCROLL};
if (I2C_TRANSMIT_P(display_scroll_right) != I2C_STATUS_SUCCESS) {
uint8_t display_scroll_right[] = {I2C_CMD, SCROLL_RIGHT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
if (I2C_TRANSMIT(display_scroll_right) != I2C_STATUS_SUCCESS) {
print("oled_scroll_right cmd failed\n");
return oled_scrolling;
}
@ -533,8 +561,8 @@ bool oled_scroll_left(void) {
// Dont enable scrolling if we need to update the display
// This prevents scrolling of bad data from starting the scroll too early after init
if (!oled_dirty && !oled_scrolling) {
static const uint8_t PROGMEM display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, 0x00, 0x00, 0x0F, 0x00, 0xFF, ACTIVATE_SCROLL};
if (I2C_TRANSMIT_P(display_scroll_left) != I2C_STATUS_SUCCESS) {
uint8_t display_scroll_left[] = {I2C_CMD, SCROLL_LEFT, 0x00, oled_scroll_start, oled_scroll_speed, oled_scroll_end, 0x00, 0xFF, ACTIVATE_SCROLL};
if (I2C_TRANSMIT(display_scroll_left) != I2C_STATUS_SUCCESS) {
print("oled_scroll_left cmd failed\n");
return oled_scrolling;
}

12
drivers/oled/oled_driver.h
View file

@ -246,6 +246,18 @@ void oled_task(void);
// Called at the start of oled_task, weak function overridable by the user
void oled_task_user(void);
// Set the specific 8 lines rows of the screen to scroll.
// 0 is the default for start, and 7 for end, which is the entire
// height of the screen. For 128x32 screens, rows 4-7 are not used.
void oled_scroll_set_area(uint8_t start_line, uint8_t end_line);
// Sets scroll speed, 0-7, fastest to slowest. Default is three.
// Does not take effect until scrolling is either started or restarted
// the ssd1306 supports 8 speeds with the delay
// listed below betwen each frame of the scrolling effect
// 0=2, 1=3, 2=4, 3=5, 4=25, 5=64, 6=128, 7=256
void oled_scroll_set_speed(uint8_t speed);
// Scrolls the entire display right
// Returns true if the screen was scrolling or starts scrolling
// NOTE: display contents cannot be changed while scrolling