4fe158a320
Move clock and reset controller functionality out of framebuffer driver into platform driver.
74 lines
1.6 KiB
C++
74 lines
1.6 KiB
C++
/*
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* \brief Frame-buffer driver for Freescale's i.MX53
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* \author Nikolay Golikov <nik@ksyslabs.org>
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* \date 2012-06-21
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*/
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/* Genode includes */
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#include <drivers/board_base.h>
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#include <os/attached_io_mem_dataspace.h>
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#include <io_mem_session/connection.h>
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#include <gpio_session/connection.h>
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#include <platform_session/connection.h>
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#include <util/mmio.h>
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/* local includes */
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#include <ipu.h>
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namespace Framebuffer {
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using namespace Genode;
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class Driver;
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};
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class Framebuffer::Driver
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{
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private:
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Platform::Connection _platform;
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Attached_io_mem_dataspace _ipu_mmio; /* Image processing unit memory */
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Ipu _ipu;
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Gpio::Connection _gpio;
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public:
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enum {
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REFRESH = 60,
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WIDTH = 800,
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HEIGHT = 480,
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PIX_CLK = 29850,
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ROUND_PIX_CLK = 38000,
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LEFT_MARGIN = 89,
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RIGHT_MARGIN = 104,
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UPPER_MARGIN = 10,
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LOWER_MARGIN = 10,
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VSYNC_LEN = 10,
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HSYNC_LEN = 10,
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BYTES_PER_PIXEL = 2,
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FRAMEBUFFER_SIZE = WIDTH * HEIGHT * BYTES_PER_PIXEL,
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LCD_BL_GPIO = 88,
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LCD_CONT_GPIO = 1,
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};
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Driver()
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: _ipu_mmio(Board_base::IPU_BASE, Board_base::IPU_SIZE),
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_ipu((addr_t)_ipu_mmio.local_addr<void>()) { }
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bool init(addr_t phys_base)
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{
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/* enable IPU via platform driver */
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_platform.enable(Platform::Session::IPU);
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_ipu.init(WIDTH, HEIGHT, WIDTH * BYTES_PER_PIXEL, phys_base);
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/* Turn on lcd power */
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_gpio.direction_output(LCD_BL_GPIO, true);
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_gpio.direction_output(LCD_CONT_GPIO, true);
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return true;
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}
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};
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