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drivers/lcd/memlcd.c: fix typos and nxstyle

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Signed-off-by: Juha Niskanen <juha.niskanen@haltian.com>
This commit is contained in:
Juha Niskanen 2020-11-08 17:56:19 +02:00 committed by Abdelatif Guettouche
parent 350309856d
commit 62d38c32e8
2 changed files with 44 additions and 47 deletions
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61
drivers/lcd/memlcd.c
View File

@ -71,7 +71,7 @@
# warning This platform does not support SPI LSB-bit order
#endif
/* Cisplay resolution */
/* Display resolution */
#if defined CONFIG_MEMLCD_LS013B7DH01
# define MEMLCD_XRES 144
@ -102,8 +102,8 @@
/* display memory allocation */
#define MEMLCD_FBSIZE (MEMLCD_XSTRIDE*MEMLCD_YRES)
/* contrast setting, related to VCOM toggle frequency
* higher frequency gives better contrast, instead, saves power
/* Contrast setting, related to VCOM toggle frequency.
* Higher frequency gives better contrast, lower instead saves power.
*/
#define MEMLCD_CONTRAST 24
@ -157,14 +157,15 @@ static void memlcd_deselect(FAR struct spi_dev_s *spi);
static int memlcd_putrun(fb_coord_t row, fb_coord_t col,
FAR const uint8_t * buffer, size_t npixels);
static int memlcd_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t * buffer,
size_t npixels);
static int memlcd_getrun(fb_coord_t row, fb_coord_t col,
FAR uint8_t * buffer, size_t npixels);
/* lcd configuration */
static int memlcd_getvideoinfo(FAR struct lcd_dev_s *dev,
FAR struct fb_videoinfo_s *vinfo);
static int memlcd_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
static int memlcd_getplaneinfo(FAR struct lcd_dev_s *dev,
unsigned int planeno,
FAR struct lcd_planeinfo_s *pinfo);
/* lcd specific controls */
@ -200,7 +201,9 @@ static const struct lcd_planeinfo_s g_planeinfo =
.bpp = MEMLCD_BPP, /* Bits-per-pixel */
};
/* This is the oled driver instance (only a single device is supported for now) */
/* This is the oled driver instance (only a single device is supported
* for now).
*/
static struct memlcd_dev_s g_memlcddev =
{
@ -230,9 +233,9 @@ static struct memlcd_dev_s g_memlcddev =
* @nr: the bit to set
* @addr: the address to start counting from
*
* Unlike set_bit(), this function is non-atomic and may be reordered.
* If it's called on the same region of memory simultaneously, the effect
* may be that only one operation succeeds.
* This function is not atomic and may be reordered. If it's called on the
* same region of memory simultaneously, the effect may be that only one
* operation succeeds.
*
****************************************************************************/
@ -272,8 +275,6 @@ static inline int __test_bit(int nr, const volatile uint8_t * addr)
* Returned Value:
* None
*
* Assumptions:
*
****************************************************************************/
static void memlcd_select(FAR struct spi_dev_s *spi)
@ -319,8 +320,6 @@ static void memlcd_select(FAR struct spi_dev_s *spi)
* Returned Value:
* None
*
* Assumptions:
*
****************************************************************************/
static void memlcd_deselect(FAR struct spi_dev_s *spi)
@ -340,8 +339,6 @@ static void memlcd_deselect(FAR struct spi_dev_s *spi)
* Input Parameters:
* mlcd - Reference to private driver structure
*
* Assumptions:
*
****************************************************************************/
static inline void memlcd_clear(FAR struct memlcd_dev_s *mlcd)
@ -350,9 +347,13 @@ static inline void memlcd_clear(FAR struct memlcd_dev_s *mlcd)
lcdinfo("Clear display\n");
memlcd_select(mlcd->spi);
/* XXX Ensure 2us here */
SPI_SNDBLOCK(mlcd->spi, &cmd, 2);
/* XXX Ensure 6us here */
memlcd_deselect(mlcd->spi);
}
@ -363,10 +364,10 @@ static inline void memlcd_clear(FAR struct memlcd_dev_s *mlcd)
* This method enables/disables the polarity (VCOM) toggling behavior for
* the Memory LCD. Which is always used within setpower() call.
* Basically, the frequency shall be 1Hz~60Hz.
* If use hardware mode to toggle VCOM, we need to send specific command at a
* constant frequency to trigger the LCD internal hardware logic.
* While use software mode, we set up a timer to toggle EXTCOMIN connected IO,
* basically, it is a hardware timer to ensure a constant frequency.
* If use hardware mode to toggle VCOM, we need to send specific command at
* a constant frequency to trigger the LCD internal hardware logic.
* While use software mode, we set up a timer to toggle EXTCOMIN connected
* IO, basically, it is a hardware timer to ensure a constant frequency.
*
* Input Parameters:
* mlcd - Reference to private driver structure
@ -498,8 +499,8 @@ static int memlcd_putrun(fb_coord_t row, fb_coord_t col,
*
****************************************************************************/
static int memlcd_getrun(fb_coord_t row, fb_coord_t col, FAR uint8_t * buffer,
size_t npixels)
static int memlcd_getrun(fb_coord_t row, fb_coord_t col,
FAR uint8_t * buffer, size_t npixels)
{
FAR struct memlcd_dev_s *mlcd = (FAR struct memlcd_dev_s *)&g_memlcddev;
uint8_t *p;
@ -582,7 +583,8 @@ static int memlcd_getvideoinfo(FAR struct lcd_dev_s *dev,
*
****************************************************************************/
static int memlcd_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
static int memlcd_getplaneinfo(FAR struct lcd_dev_s *dev,
unsigned int planeno,
FAR struct lcd_planeinfo_s *pinfo)
{
DEBUGASSERT(pinfo && planeno == 0);
@ -595,8 +597,9 @@ static int memlcd_getplaneinfo(FAR struct lcd_dev_s *dev, unsigned int planeno,
* Name: memlcd_getpower
*
* Description:
* Get the LCD panel power status (0: full off - CONFIG_LCD_MAXPOWER: full on.
* On backlit LCDs, this setting may correspond to the backlight setting.
* Get the LCD panel power status (0: full off - CONFIG_LCD_MAXPOWER: full
* on. On backlit LCDs, this setting may correspond to the backlight
* setting.
*
****************************************************************************/
@ -613,8 +616,9 @@ static int memlcd_getpower(FAR struct lcd_dev_s *dev)
* Name: memlcd_setpower
*
* Description:
* Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWER: full on).
* On backlit LCDs, this setting may correspond to the backlight setting.
* Enable/disable LCD panel power (0: full off - CONFIG_LCD_MAXPOWER: full
* on). On backlit LCDs, this setting may correspond to the backlight
* setting.
*
****************************************************************************/
@ -700,7 +704,8 @@ static int memlcd_setcontrast(struct lcd_dev_s *dev, unsigned int contrast)
* Input Parameters:
*
* spi - A reference to the SPI driver instance.
* devno - A value in the range of 0 through CONFIG_memlcd_NINTERFACES-1.
* priv - Board specific structure
* devno - A value in the range of 0 through CONFIG_MEMLCD_NINTERFACES-1.
* This allows support for multiple OLED devices.
*
* Returned Value:

22
include/nuttx/lcd/memlcd.h
View File

@ -51,17 +51,13 @@ extern "C"
# define EXTERN extern
#endif
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/****************************************************************************
* Public Types
****************************************************************************/
/* A reference to a structure of this type must be passed to the initialization
* method. It provides some board-specific hooks used by driver to manage the
* timer and gpio (IRQ and DISP).
/* A reference to a structure of this type must be passed to the
* initialization method. It provides some board-specific hooks used by
* driver to manage the timer and gpio (IRQ and DISP).
*
* Memory for this structure is provided by the caller. It is not copied
* by the driver and is presumed to persist while the driver is active.
@ -73,11 +69,11 @@ struct memlcd_priv_s
* callbacks to isolate the Memory LCD driver from differences in GPIO
* interrupt handling by varying boards and MCUs.
*
* irqattach - Attach the driver interrupt handler to the GPIO interrupt
* attachirq - Attach the driver interrupt handler to the GPIO interrupt
* If isr is NULL, detach and disable it.
* dispcontrol - Enable or disable the DISP pin and EXTCOMIN interrupt.
* setpolarity - Board specified method to set EXTCOMIN.
* Needed only when CONFIG_MEMLCD_EXTCOMIN_MODE_HW is not set.
* setpolarity - Board specified method to set EXTCOMIN. Needed only when
* CONFIG_MEMLCD_EXTCOMIN_MODE_HW is not set.
* setvcomfreq - Set timer frequency for EXTCOMIN.
*/
@ -89,10 +85,6 @@ struct memlcd_priv_s
void (*setvcomfreq) (unsigned int freq);
};
/****************************************************************************
* Public Data
****************************************************************************/
/****************************************************************************
* Public Function Prototypes
****************************************************************************/
@ -105,9 +97,9 @@ struct memlcd_priv_s
* Input Parameters:
*
* spi - A reference to the SPI driver instance.
* priv - Board specific structure
* devno - A value in the range of 0 through CONFIG_MEMLCD_NINTERFACES-1.
* This allows support for multiple devices.
* memlcd_priv_s - Board specific structure
*
* Returned Value:
*