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authorChris Johns <chrisj@rtems.org>2017-12-23 18:18:56 +1100
committerSebastian Huber <sebastian.huber@embedded-brains.de>2018-01-25 08:45:26 +0100
commit2afb22b7e1ebcbe40373ff7e0efae7d207c655a9 (patch)
tree44759efe9374f13200a97e96d91bd9a2b7e5ce2a /bsps/sparc/include/bsp/gradcdac.h
parentMAINTAINERS: Add myself to Write After Approval. (diff)
downloadrtems-2afb22b7e1ebcbe40373ff7e0efae7d207c655a9.tar.bz2
Remove make preinstall
A speciality of the RTEMS build system was the make preinstall step. It copied header files from arbitrary locations into the build tree. The header files were included via the -Bsome/build/tree/path GCC command line option. This has at least seven problems: * The make preinstall step itself needs time and disk space. * Errors in header files show up in the build tree copy. This makes it hard for editors to open the right file to fix the error. * There is no clear relationship between source and build tree header files. This makes an audit of the build process difficult. * The visibility of all header files in the build tree makes it difficult to enforce API barriers. For example it is discouraged to use BSP-specifics in the cpukit. * An introduction of a new build system is difficult. * Include paths specified by the -B option are system headers. This may suppress warnings. * The parallel build had sporadic failures on some hosts. This patch removes the make preinstall step. All installed header files are moved to dedicated include directories in the source tree. Let @RTEMS_CPU@ be the target architecture, e.g. arm, powerpc, sparc, etc. Let @RTEMS_BSP_FAMILIY@ be a BSP family base directory, e.g. erc32, imx, qoriq, etc. The new cpukit include directories are: * cpukit/include * cpukit/score/cpu/@RTEMS_CPU@/include * cpukit/libnetworking The new BSP include directories are: * bsps/include * bsps/@RTEMS_CPU@/include * bsps/@RTEMS_CPU@/@RTEMS_BSP_FAMILIY@/include There are build tree include directories for generated files. The include directory order favours the most general header file, e.g. it is not possible to override general header files via the include path order. The "bootstrap -p" option was removed. The new "bootstrap -H" option should be used to regenerate the "headers.am" files. Update #3254.
Diffstat (limited to 'bsps/sparc/include/bsp/gradcdac.h')
-rw-r--r--bsps/sparc/include/bsp/gradcdac.h227
1 files changed, 227 insertions, 0 deletions
diff --git a/bsps/sparc/include/bsp/gradcdac.h b/bsps/sparc/include/bsp/gradcdac.h
new file mode 100644
index 0000000000..b52077845f
--- /dev/null
+++ b/bsps/sparc/include/bsp/gradcdac.h
@@ -0,0 +1,227 @@
+/* ADC / DAC (GRADCDAC) interface
+/*
+ * COPYRIGHT (c) 2009.
+ * Cobham Gaisler AB.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef __GRADCDAC_H__
+#define __GRADCDAC_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+struct gradcdac_regs {
+ volatile unsigned int config; /* 0x00 Configuration Register */
+ volatile unsigned int status; /* 0x04 Status Register */
+ int unused0[2];
+ volatile unsigned int adc_din; /* 0x10 ADC Data Input Register */
+ volatile unsigned int dac_dout; /* 0x14 DAC Data Output Register */
+ int unused1[2];
+ volatile unsigned int adrin; /* 0x20 Address Input Register */
+ volatile unsigned int adrout; /* 0x24 Address Output Register */
+ volatile unsigned int adrdir; /* 0x28 Address Direction Register */
+ int unused2[1];
+ volatile unsigned int data_in; /* 0x30 Data Input Register */
+ volatile unsigned int data_out; /* 0x34 Data Output Register */
+ volatile unsigned int data_dir; /* 0x38 Data Direction Register */
+};
+
+#define GRADCDAC_CFG_DACWS 0x00f80000
+#define GRADCDAC_CFG_WRPOL 0x00040000
+#define GRADCDAC_CFG_DACDW 0x00030000
+#define GRADCDAC_CFG_ADCWS 0x0000f800
+#define GRADCDAC_CFG_RCPOL 0x00000400
+#define GRADCDAC_CFG_CSMODE 0x00000300
+#define GRADCDAC_CFG_CSPOL 0x00000080
+#define GRADCDAC_CFG_RDYMODE 0x00000040
+#define GRADCDAC_CFG_RDYPOL 0x00000020
+#define GRADCDAC_CFG_TRIGPOL 0x00000010
+#define GRADCDAC_CFG_TRIGMODE 0x0000000c
+#define GRADCDAC_CFG_ADCDW 0x00000003
+
+#define GRADCDAC_CFG_DACWS_BIT 19
+#define GRADCDAC_CFG_WRPOL_BIT 18
+#define GRADCDAC_CFG_DACDW_BIT 16
+#define GRADCDAC_CFG_ADCWS_BIT 11
+#define GRADCDAC_CFG_RCPOL_BIT 10
+#define GRADCDAC_CFG_CSMODE_BIT 8
+#define GRADCDAC_CFG_CSPOL_BIT 7
+#define GRADCDAC_CFG_RDYMODE_BIT 6
+#define GRADCDAC_CFG_RDYPOL_BIT 5
+#define GRADCDAC_CFG_TRIGPOL_BIT 4
+#define GRADCDAC_CFG_TRIGMODE_BIT 2
+#define GRADCDAC_CFG_ADCDW_BIT 0
+
+#define GRADCDAC_STATUS_DACNO 0x40
+#define GRADCDAC_STATUS_DACRDY 0x20
+#define GRADCDAC_STATUS_DACON 0x10
+#define GRADCDAC_STATUS_ADCTO 0x08
+#define GRADCDAC_STATUS_ADCNO 0x04
+#define GRADCDAC_STATUS_ADCRDY 0x02
+#define GRADCDAC_STATUS_ADCON 0x01
+
+#define GRADCDAC_STATUS_DACNO_BIT 6
+#define GRADCDAC_STATUS_DACRDY_BIT 5
+#define GRADCDAC_STATUS_DACON_BIT 4
+#define GRADCDAC_STATUS_ADCTO_BIT 3
+#define GRADCDAC_STATUS_ADCNO_BIT 2
+#define GRADCDAC_STATUS_ADCRDY_BIT 1
+#define GRADCDAC_STATUS_ADCON_BIT 0
+
+#define GRADCDAC_IRQ_DAC 1
+#define GRADCDAC_IRQ_ADC 0
+
+struct gradcdac_config {
+ unsigned char dac_ws;
+ char wr_pol;
+ unsigned char dac_dw;
+ unsigned char adc_ws;
+ char rc_pol;
+ unsigned char cs_mode;
+ char cs_pol;
+ char ready_mode;
+ char ready_pol;
+ char trigg_pol;
+ unsigned char trigg_mode;
+ unsigned char adc_dw;
+};
+
+extern void *gradcdac_open(char *devname);
+
+extern void gradcdac_set_config(void *cookie, struct gradcdac_config *cfg);
+
+extern void gradcdac_get_config(void *cookie, struct gradcdac_config *cfg);
+
+extern void gradcdac_set_cfg(void *cookie, unsigned int config);
+
+extern unsigned int gradcdac_get_cfg(void *cookie);
+
+extern unsigned int gradcdac_get_status(void *cookie);
+
+static int __inline__ gradcdac_DAC_ReqRej(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_DACNO);
+}
+
+static int __inline__ gradcdac_DAC_isCompleted(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_DACRDY);
+}
+
+static int __inline__ gradcdac_DAC_isOngoing(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_DACON);
+}
+
+static int __inline__ gradcdac_ADC_isTimeouted(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_ADCTO);
+}
+
+static int __inline__ gradcdac_ADC_ReqRej(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_ADCNO);
+}
+
+static int __inline__ gradcdac_ADC_isCompleted(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_ADCRDY);
+}
+
+static int __inline__ gradcdac_ADC_isOngoing(unsigned int status)
+{
+ return (status & GRADCDAC_STATUS_ADCON);
+}
+
+#define GRADCDAC_ISR_BOTH 3
+#define GRADCDAC_ISR_DAC 2
+#define GRADCDAC_ISR_ADC 1
+
+/* Install IRQ handler for ADC and/or DAC interrupt.
+ * The installed IRQ handler(ISR) must read the status
+ * register to clear the pending interrupt avoiding multiple
+ * entries to the ISR caused by the same IRQ.
+ *
+ * \param adc 1=ADC interrupt, 2=ADC interrupt, 3=ADC and DAC interrupt
+ * \param isr Interrupt service routine called when IRQ is fired
+ * \param arg custom argument passed to ISR when called.
+ */
+extern int gradcdac_install_irq_handler
+ (void *cookie, int adc, void (*isr)(void *cookie, void *arg), void *arg);
+
+extern void gradcdac_uninstall_irq_handler(void *cookie, int adc);
+
+/* Make the ADC circuitry initialize a analogue to digital
+ * conversion. The result can be read out by gradcdac_adc_convert_try
+ * or gradcdac_adc_convert.
+ */
+extern void gradcdac_adc_convert_start(void *cookie);
+
+/* Tries to read the conversion result. If the circuitry is busy
+ * converting the function return a non-zero value, if the conversion
+ * has successfully finished the function return zero.
+ *
+ * \param digital_value the resulting converted value is placed here
+ * \return zero = ADC conversion complete, digital_value contain current conversion result
+ * positive = ADC busy, digital_value contain previous conversion result
+ * negative = Conversion request failed.
+ */
+extern int gradcdac_adc_convert_try(void *cookie, unsigned short *digital_value);
+
+/* Waits until the ADC circuity has finished a digital to analogue
+ * conversion. The Waiting is implemented as a busy loop utilizing
+ * 100% CPU load.
+ *
+ * \return zero = Conversion ok
+ * negative = Conversion request failed.
+ */
+extern int gradcdac_adc_convert(void *cookie, unsigned short *digital_value);
+
+/* Try to make the DAC circuitry initialize a digital to analogue
+ * conversion. If the circuitry is busy by a previous conversion
+ * the function return a non-zero value, if the conversion is
+ * successfully initialized the function return zero.
+ */
+extern int gradcdac_dac_convert_try(void *cookie, unsigned short digital_value);
+
+/* Initializes a digital to analogue conversion by waiting until
+ * previous conversions is finished before procceding with the
+ * conversion. The Waiting is implemented as a busy loop utilizing
+ * 100% CPU load.
+ */
+extern void gradcdac_dac_convert(void *cookie, unsigned short digital_value);
+
+extern unsigned int gradcdac_get_adrinput(void *cookie);
+extern void gradcdac_set_adrinput(void *cookie, unsigned int input);
+
+extern unsigned int gradcdac_get_adroutput(void *cookie);
+extern void gradcdac_set_adroutput(void *cookie, unsigned int output);
+
+extern unsigned int gradcdac_get_adrdir(void *cookie);
+extern void gradcdac_set_adrdir(void *cookie, unsigned int dir);
+
+extern unsigned int gradcdac_get_datainput(void *cookie);
+extern void gradcdac_set_datainput(void *cookie, unsigned int input);
+
+extern unsigned int gradcdac_get_dataoutput(void *cookie);
+extern void gradcdac_set_dataoutput(void *cookie, unsigned int output);
+
+extern unsigned int gradcdac_get_datadir(void *cookie);
+extern void gradcdac_set_datadir(void *cookie, unsigned int dir);
+
+/* Show one or all GRADCDAC cores. If cookie is NULL all GRADCDAC's are shown */
+extern void grAdcDacShow(void *cookie);
+
+/* Register Driver routine */
+extern void gradcdac_register_drv (void);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif