Datasheet

AVR32416

32105-AVR32-07/08

.monitor = "LTV350QV",

.modedb = ltv350qv_modes,

.modedb_len = ARRAY_SIZE(ltv350qv_modes),

.hfmin = 14820,

.hfmax = 22230,

.vfmin = 60,

.vfmax = 90,

.dclkmax = 30000000,

};

The maximum and minimum parameters specified here will make sure that the LCD

controller can not be configured with values that do not fit into that range. A

configuration value below or above the specification will be set to the lower or the

upper limit. This prevents from a faulty configuration of the LCD controller that could

damage an attached LCD. Table 3-6 lists the structure members, which at least

should be set, with a description.

Table 3-6. Monitor specification structure members

Parameter Description

manufacturer Display manufacturer name (max. 4 characters)

monitor Name of the display (max. 14 characters)

modedb Pointer to the video modes array (fb_videomode structure)

modedb_len

Length of the video modes array. The macro ARRAY_SIZE()

can be used to get the length.

hfmin Lower limit of the horizontal display frequency in Hz

hfmax Upper limit of the horizontal display frequency in HZ

vfmin Lower limit of the vertical display frequency in Hz

vfmax Upper limit of the vertical display frequency in Hz

dclkmax Upper limit of the pixel clock

The last structure that is needed is atmel_lcdfb_info. It will be used as the platform

device data and therefore be available for the LCD controller driver to do the default

configuration. The definition of the structure is in include/video/atmel_lcdc.h and

contains some more members as in the example below.

struct atmel_lcdfb_info __initdata atstk1000_lcdc_data = {

.default_bpp = 24,

.default_dmacon = ATMEL_LCDC_DMAEN | ATMEL_LCDC_DMA2DEN,

.default_lcdcon2 = (ATMEL_LCDC_DISTYPE_TFT

| ATMEL_LCDC_INVCLK

| ATMEL_LCDC_CLKMOD_ALWAYSACTIVE

| ATMEL_LCDC_MEMOR_BIG),

.default_monspecs = &atstk1000_default_monspecs,

.guard_time = 2,

};

Table 3-7. LCD controller specific configuration data

Parameter Description