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A little more SAMA5/OV2640 logic

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This commit is contained in:
Gregory Nutt 2013-12-10 11:12:22 -06:00
parent 4b01f0fdab
commit 77cf855260
3 changed files with 124 additions and 91 deletions
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67
configs/sama5d3x-ek/README.txt
View File

@ -2228,37 +2228,42 @@ OV2640 Camera Interface
SAMA5D3x PIN SAMA5D3x-EK OV2640
PIO PER SIGNAL ISI Socket J11
---- --- ------------- --- ------------ ------------
1 VDDISI
2 GND
3 VDDISI
4 GND
PE28 ? ? 5 ZB_SLPTR
PE29 ? ? 6 ZB_RST
PC27 B TWI1_CK 7 TWCK1
PC26 B TWI1_D 8 TWD1
9 GND
PD31 B PCK1 (ISI_MCK) 10 ISI_MCK
11 GND
PA30 C ISI_VSYNC 12 ISI_VSYNC
13 GND
PA31 C ISI_HSYNC 14 ISI_HSYNC
15 GND
PC30 C ISI_PCK 16 ISI_PCK
17 GND
PA16 C ISI_D0 18 ISI_D0
PA17 C ISI_D1 19 ISI_D1
PA18 C ISI_D2 20 ISI_D2
PA19 C ISI_D3 21 ISI_D3
PA20 C ISI_D4 22 ISI_D4
PA21 C ISI_D5 23 ISI_D5
PA22 C ISI_D6 24 ISI_D6
PA23 C ISI_D7 25 ISI_D7
PC29 C ISI_D8 26 ISI_D8
PC28 C ISI_D9 27 ISI_D9
PC27 C ISI_D10 28 ISI_D10
PC26 C ISI_D11 29 ISI_D11
30 GND
---- --- ------------- --- ------------ ----------------------------------------
--- 1 VDDISI ---
--- 2 GND ---
--- 3 VDDISI ---
--- 4 GND ---
PE28 ? ? 5 ZB_SLPTR ???
PE29 ? ? 6 ZB_RST C6 RESETB Reset mode (?)
PC27 B TWI1_CK 7 TWCK1 C2 SIO_C SCCB serial interface clock input
PC26 B TWI1_D 8 TWD1 C1 SIO_D SCCB serial interface data I/O
--- 9 GND ---
PD31 B PCK1 (ISI_MCK) 10 ISI_MCK C4 XVCLK System clock input (?)
--- 11 GND ---
PA30 C ISI_VSYNC 12 ISI_VSYNC D2 VSYNC Vertical synchronization
--- 13 GND ---
PA31 C ISI_HSYNC 14 ISI_HSYNC C3 HREF Horizontal reference output (?)
--- 15 GND ---
PC30 C ISI_PCK 16 ISI_PCK E3 PCLK Pixel clock output
--- 17 GND ---
PA16 C ISI_D0 18 ISI_D0 E2 Y0 Video port output bit[0]
PA17 C ISI_D1 19 ISI_D1 E1 Y1 Video port output bit[1]
PA18 C ISI_D2 20 ISI_D2 F3 Y2 Video port output bit[2]
PA19 C ISI_D3 21 ISI_D3 G3 Y3 Video port output bit[3]
PA20 C ISI_D4 22 ISI_D4 F4 Y4 Video port output bit[4]
PA21 C ISI_D5 23 ISI_D5 G4 Y5 Video port output bit[5]
PA22 C ISI_D6 24 ISI_D6 E5 Y6 Video port output bit[6]
PA23 C ISI_D7 25 ISI_D7 G5 Y7 Video port output bit[7]
PC29 C ISI_D8 26 ISI_D8 F5 Y8 Video port output bit[8]
PC28 C ISI_D9 27 ISI_D9 G6 Y9 Video port output bit[9]
PC27 C ISI_D10 28 ISI_D10 ---
PC26 C ISI_D11 29 ISI_D11 ---
--- 30 GND ---
??? ?? A2 EXPST_B Snapshot exposure start trigger
??? ?? A6 STROBE Flash control output
??? ?? B2 FREX Snapshot trigger
??? ?? B6 PWDN Power-down mode enable
I2S Audio Support
=================

58
configs/sama5d3x-ek/ov2640/defconfig
View File

@ -488,63 +488,7 @@ CONFIG_DISABLE_MOUNTPOINT=y
#
# Graphics Support
#
CONFIG_NX=y
CONFIG_NX_NPLANES=1
# CONFIG_NX_WRITEONLY is not set
#
# Supported Pixel Depths
#
CONFIG_NX_DISABLE_1BPP=y
CONFIG_NX_DISABLE_2BPP=y
CONFIG_NX_DISABLE_4BPP=y
CONFIG_NX_DISABLE_8BPP=y
# CONFIG_NX_DISABLE_16BPP is not set
CONFIG_NX_DISABLE_24BPP=y
CONFIG_NX_DISABLE_32BPP=y
CONFIG_NX_PACKEDMSFIRST=y
#
# Input Devices
#
# CONFIG_NX_MOUSE is not set
# CONFIG_NX_KBD is not set
#
# Framed Window Borders
#
CONFIG_NXTK_BORDERWIDTH=3
CONFIG_NXTK_DEFAULT_BORDERCOLORS=y
# CONFIG_NXTK_AUTORAISE is not set
#
# Font Selections
#
CONFIG_NXFONTS_CHARBITS=7
# CONFIG_NXFONT_MONO5X8 is not set
# CONFIG_NXFONT_SANS17X22 is not set
# CONFIG_NXFONT_SANS20X26 is not set
# CONFIG_NXFONT_SANS23X27 is not set
# CONFIG_NXFONT_SANS22X29 is not set
# CONFIG_NXFONT_SANS28X37 is not set
# CONFIG_NXFONT_SANS39X48 is not set
CONFIG_NXFONT_SANS17X23B=y
# CONFIG_NXFONT_SANS20X27B is not set
# CONFIG_NXFONT_SANS22X29B is not set
# CONFIG_NXFONT_SANS28X37B is not set
# CONFIG_NXFONT_SANS40X49B is not set
# CONFIG_NXFONT_SERIF22X29 is not set
# CONFIG_NXFONT_SERIF29X37 is not set
# CONFIG_NXFONT_SERIF38X48 is not set
# CONFIG_NXFONT_SERIF22X28B is not set
# CONFIG_NXFONT_SERIF27X38B is not set
# CONFIG_NXFONT_SERIF38X49B is not set
# CONFIG_NXCONSOLE is not set
#
# NX Multi-user only options
#
# CONFIG_NX_MULTIUSER is not set
# CONFIG_NX is not set
#
# Memory Management

90
configs/sama5d3x-ek/src/sam_ov2640.c
View File

@ -51,6 +51,9 @@
#include "sam_periphclks.h"
#include "sam_lcd.h"
#include "sam_pck.h"
#include "sam_pio.h"
#include "chip/sam_pinmap.h"
#include "sama5d3x-ek.h"
#ifdef HAVE_CAMERA
@ -58,7 +61,9 @@
/****************************************************************************
* Definitions
****************************************************************************/
/* Configuration ************************************************************/
/* Typical OV2640 XVCLK is 24MHz */
#define OV2640_FREQUENCY 24000000
/****************************************************************************
* Private Data
@ -97,11 +102,57 @@ static inline FAR struct fb_vtable_s *ov2640_lcd_initialize(void)
/****************************************************************************
* Name: ov2640_camera_initialize
*
* Description:
* Initialize the OV2640 camera in the correct mode of operation
*
* OV2640 Camera Interface
*
* SAMA5D3x PIN SAMA5D3x-EK OV2640
* PIO PER SIGNAL ISI Socket J11
* ---- --- ------------- --- ------------ ----------------------------------------
* --- 1 VDDISI ---
* --- 2 GND ---
* --- 3 VDDISI ---
* --- 4 GND ---
* PE28 ? ? 5 ZB_SLPTR ???
* PE29 ? ? 6 ZB_RST C6 RESETB Reset mode (?)
* PC27 B TWI1_CK 7 TWCK1 C2 SIO_C SCCB serial interface clock input
* PC26 B TWI1_D 8 TWD1 C1 SIO_D SCCB serial interface data I/O
* --- 9 GND ---
* PD31 B PCK1 (ISI_MCK) 10 ISI_MCK C4 XVCLK System clock input (?)
* --- 11 GND ---
* PA30 C ISI_VSYNC 12 ISI_VSYNC D2 VSYNC Vertical synchronization
* --- 13 GND ---
* PA31 C ISI_HSYNC 14 ISI_HSYNC C3 HREF Horizontal reference output (?)
* --- 15 GND ---
* PC30 C ISI_PCK 16 ISI_PCK E3 PCLK Pixel clock output
* --- 17 GND ---
* PA16 C ISI_D0 18 ISI_D0 E2 Y0 Video port output bit[0]
* PA17 C ISI_D1 19 ISI_D1 E1 Y1 Video port output bit[1]
* PA18 C ISI_D2 20 ISI_D2 F3 Y2 Video port output bit[2]
* PA19 C ISI_D3 21 ISI_D3 G3 Y3 Video port output bit[3]
* PA20 C ISI_D4 22 ISI_D4 F4 Y4 Video port output bit[4]
* PA21 C ISI_D5 23 ISI_D5 G4 Y5 Video port output bit[5]
* PA22 C ISI_D6 24 ISI_D6 E5 Y6 Video port output bit[6]
* PA23 C ISI_D7 25 ISI_D7 G5 Y7 Video port output bit[7]
* PC29 C ISI_D8 26 ISI_D8 F5 Y8 Video port output bit[8]
* PC28 C ISI_D9 27 ISI_D9 G6 Y9 Video port output bit[9]
* PC27 C ISI_D10 28 ISI_D10 ---
* PC26 C ISI_D11 29 ISI_D11 ---
* --- 30 GND ---
*
* ??? ?? A2 EXPST_B Snapshot exposure start trigger
* ??? ?? A6 STROBE Flash control output
* ??? ?? B2 FREX Snapshot trigger
* ??? ?? B6 PWDN Power-down mode enable
*
****************************************************************************/
static inline int ov2640_camera_initialize(void)
{
FAR struct i2c_dev_s *i2c;
uint32_t actual;
int ret;
/* Get the I2C driver that interfaces with the camers (OV2640_BUS)*/
@ -109,7 +160,7 @@ static inline int ov2640_camera_initialize(void)
i2c = up_i2cinitialize(OV2640_BUS);
if (!i2c)
{
fdbg("ERROR: Failed to initialize TWI%d\n", OV2640_BUS);
gdbg("ERROR: Failed to initialize TWI%d\n", OV2640_BUS);
return EXIT_FAILURE;
}
@ -117,6 +168,39 @@ static inline int ov2640_camera_initialize(void)
sam_isi_enableclk();
/* Configure OV2640 pins
*
* ISI:
* - HSYNC, VSYNC, PCK
* - 8 data bits for 8-bit color
* PCK
* - PCK1 provides OV2640 system clock
*/
sam_configpio(PIO_ISI_HSYNC);
sam_configpio(PIO_ISI_VSYNC);
sam_configpio(PIO_ISI_PCK);
sam_configpio(PIO_ISI_D0);
sam_configpio(PIO_ISI_D1);
sam_configpio(PIO_ISI_D2);
sam_configpio(PIO_ISI_D3);
sam_configpio(PIO_ISI_D4);
sam_configpio(PIO_ISI_D5);
sam_configpio(PIO_ISI_D6);
sam_configpio(PIO_ISI_D7);
sam_configpio(PIO_PMC_PCK1);
/* Configure and enable the PCK1 output */
actual = sam_pck_configure(PCK1, OV2640_FREQUENCY);
gvdbg("Desired PCK1 frequency: %ld Actual: %ld\n",
(long)OV2640_FREQUENCY, (long)actual);
sam_pck_enable(PCK1, true);
/* Configure the ISI peripheral */
#warning Missing Logic
/* Initialize the OV2640 camera */
@ -124,7 +208,7 @@ static inline int ov2640_camera_initialize(void)
ret = ov2640_initialize(i2c);
if (ret < 0)
{
fdbg("ERROR: Failed to initialize the OV2640: %d\n", ret);
gdbg("ERROR: Failed to initialize the OV2640: %d\n", ret);
return EXIT_FAILURE;
}