/* * Coldfire generic GPIO support. * * (C) Copyright 2009, Steven King <sfking@fdwdc.com> * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #ifndef mcfgpio_h #define mcfgpio_h #ifdef CONFIG_GPIOLIB #include <asm-generic/gpio.h> #else int __mcfgpio_get_value(unsigned gpio); void __mcfgpio_set_value(unsigned gpio, int value); int __mcfgpio_direction_input(unsigned gpio); int __mcfgpio_direction_output(unsigned gpio, int value); int __mcfgpio_request(unsigned gpio); void __mcfgpio_free(unsigned gpio); /* our alternate 'gpiolib' functions */ static inline int __gpio_get_value(unsigned gpio) { if (gpio < MCFGPIO_PIN_MAX) return __mcfgpio_get_value(gpio); else return -EINVAL; } static inline void __gpio_set_value(unsigned gpio, int value) { if (gpio < MCFGPIO_PIN_MAX) __mcfgpio_set_value(gpio, value); } static inline int __gpio_cansleep(unsigned gpio) { if (gpio < MCFGPIO_PIN_MAX) return 0; else return -EINVAL; } static inline int __gpio_to_irq(unsigned gpio) { return -EINVAL; } static inline int gpio_direction_input(unsigned gpio) { if (gpio < MCFGPIO_PIN_MAX) return __mcfgpio_direction_input(gpio); else return -EINVAL; } static inline int gpio_direction_output(unsigned gpio, int value) { if (gpio < MCFGPIO_PIN_MAX) return __mcfgpio_direction_output(gpio, value); else return -EINVAL; } static inline int gpio_request(unsigned gpio, const char *label) { if (gpio < MCFGPIO_PIN_MAX) return __mcfgpio_request(gpio); else return -EINVAL; } static inline void gpio_free(unsigned gpio) { if (gpio < MCFGPIO_PIN_MAX) __mcfgpio_free(gpio); } #endif /* CONFIG_GPIOLIB */ /* * The Freescale Coldfire family is quite varied in how they implement GPIO. * Some parts have 8 bit ports, some have 16bit and some have 32bit; some have * only one port, others have multiple ports; some have a single data latch * for both input and output, others have a separate pin data register to read * input; some require a read-modify-write access to change an output, others * have set and clear registers for some of the outputs; Some have all the * GPIOs in a single control area, others have some GPIOs implemented in * different modules. * * This implementation attempts accommodate the differences while presenting * a generic interface that will optimize to as few instructions as possible. */ #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ defined(CONFIG_M520x) || defined(CONFIG_M523x) || \ defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ defined(CONFIG_M53xx) || defined(CONFIG_M54xx) || \ defined(CONFIG_M5441x) /* These parts have GPIO organized by 8 bit ports */ #define MCFGPIO_PORTTYPE u8 #define MCFGPIO_PORTSIZE 8 #define mcfgpio_read(port) __raw_readb(port) #define mcfgpio_write(data, port) __raw_writeb(data, port) #elif defined(CONFIG_M5307) || defined(CONFIG_M5407) || defined(CONFIG_M5272) /* These parts have GPIO organized by 16 bit ports */ #define MCFGPIO_PORTTYPE u16 #define MCFGPIO_PORTSIZE 16 #define mcfgpio_read(port) __raw_readw(port) #define mcfgpio_write(data, port) __raw_writew(data, port) #elif defined(CONFIG_M5249) || defined(CONFIG_M525x) /* These parts have GPIO organized by 32 bit ports */ #define MCFGPIO_PORTTYPE u32 #define MCFGPIO_PORTSIZE 32 #define mcfgpio_read(port) __raw_readl(port) #define mcfgpio_write(data, port) __raw_writel(data, port) #endif #define mcfgpio_bit(gpio) (1 << ((gpio) % MCFGPIO_PORTSIZE)) #define mcfgpio_port(gpio) ((gpio) / MCFGPIO_PORTSIZE) #if defined(CONFIG_M520x) || defined(CONFIG_M523x) || \ defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ defined(CONFIG_M53xx) || defined(CONFIG_M54xx) || \ defined(CONFIG_M5441x) /* * These parts have an 'Edge' Port module (external interrupt/GPIO) which uses * read-modify-write to change an output and a GPIO module which has separate * set/clr registers to directly change outputs with a single write access. */ #if defined(CONFIG_M528x) /* * The 528x also has GPIOs in other modules (GPT, QADC) which use * read-modify-write as well as those controlled by the EPORT and GPIO modules. */ #define MCFGPIO_SCR_START 40 #elif defined(CONFIGM5441x) /* The m5441x EPORT doesn't have its own GPIO port, uses PORT C */ #define MCFGPIO_SCR_START 0 #else #define MCFGPIO_SCR_START 8 #endif #define MCFGPIO_SETR_PORT(gpio) (MCFGPIO_SETR + \ mcfgpio_port(gpio - MCFGPIO_SCR_START)) #define MCFGPIO_CLRR_PORT(gpio) (MCFGPIO_CLRR + \ mcfgpio_port(gpio - MCFGPIO_SCR_START)) #else #define MCFGPIO_SCR_START MCFGPIO_PIN_MAX /* with MCFGPIO_SCR == MCFGPIO_PIN_MAX, these will be optimized away */ #define MCFGPIO_SETR_PORT(gpio) 0 #define MCFGPIO_CLRR_PORT(gpio) 0 #endif /* * Coldfire specific helper functions */ /* return the port pin data register for a gpio */ static inline u32 __mcfgpio_ppdr(unsigned gpio) { #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ defined(CONFIG_M5307) || defined(CONFIG_M5407) return MCFSIM_PADAT; #elif defined(CONFIG_M5272) if (gpio < 16) return MCFSIM_PADAT; else if (gpio < 32) return MCFSIM_PBDAT; else return MCFSIM_PCDAT; #elif defined(CONFIG_M5249) || defined(CONFIG_M525x) if (gpio < 32) return MCFSIM2_GPIOREAD; else return MCFSIM2_GPIO1READ; #elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \ defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ defined(CONFIG_M53xx) || defined(CONFIG_M54xx) || \ defined(CONFIG_M5441x) #if !defined(CONFIG_M5441x) if (gpio < 8) return MCFEPORT_EPPDR; #if defined(CONFIG_M528x) else if (gpio < 16) return MCFGPTA_GPTPORT; else if (gpio < 24) return MCFGPTB_GPTPORT; else if (gpio < 32) return MCFQADC_PORTQA; else if (gpio < 40) return MCFQADC_PORTQB; #endif /* defined(CONFIG_M528x) */ else #endif /* !defined(CONFIG_M5441x) */ return MCFGPIO_PPDR + mcfgpio_port(gpio - MCFGPIO_SCR_START); #else return 0; #endif } /* return the port output data register for a gpio */ static inline u32 __mcfgpio_podr(unsigned gpio) { #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ defined(CONFIG_M5307) || defined(CONFIG_M5407) return MCFSIM_PADAT; #elif defined(CONFIG_M5272) if (gpio < 16) return MCFSIM_PADAT; else if (gpio < 32) return MCFSIM_PBDAT; else return MCFSIM_PCDAT; #elif defined(CONFIG_M5249) || defined(CONFIG_M525x) if (gpio < 32) return MCFSIM2_GPIOWRITE; else return MCFSIM2_GPIO1WRITE; #elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \ defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ defined(CONFIG_M53xx) || defined(CONFIG_M54xx) || \ defined(CONFIG_M5441x) #if !defined(CONFIG_M5441x) if (gpio < 8) return MCFEPORT_EPDR; #if defined(CONFIG_M528x) else if (gpio < 16) return MCFGPTA_GPTPORT; else if (gpio < 24) return MCFGPTB_GPTPORT; else if (gpio < 32) return MCFQADC_PORTQA; else if (gpio < 40) return MCFQADC_PORTQB; #endif /* defined(CONFIG_M528x) */ else #endif /* !defined(CONFIG_M5441x) */ return MCFGPIO_PODR + mcfgpio_port(gpio - MCFGPIO_SCR_START); #else return 0; #endif } /* return the port direction data register for a gpio */ static inline u32 __mcfgpio_pddr(unsigned gpio) { #if defined(CONFIG_M5206) || defined(CONFIG_M5206e) || \ defined(CONFIG_M5307) || defined(CONFIG_M5407) return MCFSIM_PADDR; #elif defined(CONFIG_M5272) if (gpio < 16) return MCFSIM_PADDR; else if (gpio < 32) return MCFSIM_PBDDR; else return MCFSIM_PCDDR; #elif defined(CONFIG_M5249) || defined(CONFIG_M525x) if (gpio < 32) return MCFSIM2_GPIOENABLE; else return MCFSIM2_GPIO1ENABLE; #elif defined(CONFIG_M520x) || defined(CONFIG_M523x) || \ defined(CONFIG_M527x) || defined(CONFIG_M528x) || \ defined(CONFIG_M53xx) || defined(CONFIG_M54xx) || \ defined(CONFIG_M5441x) #if !defined(CONFIG_M5441x) if (gpio < 8) return MCFEPORT_EPDDR; #if defined(CONFIG_M528x) else if (gpio < 16) return MCFGPTA_GPTDDR; else if (gpio < 24) return MCFGPTB_GPTDDR; else if (gpio < 32) return MCFQADC_DDRQA; else if (gpio < 40) return MCFQADC_DDRQB; #endif /* defined(CONFIG_M528x) */ else #endif /* !defined(CONFIG_M5441x) */ return MCFGPIO_PDDR + mcfgpio_port(gpio - MCFGPIO_SCR_START); #else return 0; #endif } #endif /* mcfgpio_h */
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MC68328.h | File | 37.82 KB | 0644 |
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MC68EZ328.h | File | 37.74 KB | 0644 |
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MC68VZ328.h | File | 41.02 KB | 0644 |
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a.out-core.h | File | 1.98 KB | 0644 |
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adb_iop.h | File | 1.09 KB | 0644 |
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amigahw.h | File | 10.49 KB | 0644 |
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amigaints.h | File | 3.5 KB | 0644 |
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amigayle.h | File | 3.19 KB | 0644 |
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amipcmcia.h | File | 2.51 KB | 0644 |
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apollohw.h | File | 2.35 KB | 0644 |
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asm-offsets.h | File | 35 B | 0644 |
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asm-prototypes.h | File | 211 B | 0644 |
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atafd.h | File | 300 B | 0644 |
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atafdreg.h | File | 2.68 KB | 0644 |
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atari_joystick.h | File | 457 B | 0644 |
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atari_stdma.h | File | 514 B | 0644 |
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atari_stram.h | File | 528 B | 0644 |
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atarihw.h | File | 20.3 KB | 0644 |
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atariints.h | File | 5.56 KB | 0644 |
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atarikb.h | File | 1.4 KB | 0644 |
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atomic.h | File | 4.86 KB | 0644 |
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bitops.h | File | 12.19 KB | 0644 |
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blinken.h | File | 641 B | 0644 |
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bootinfo.h | File | 783 B | 0644 |
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bootstd.h | File | 4.64 KB | 0644 |
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bug.h | File | 659 B | 0644 |
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bugs.h | File | 369 B | 0644 |
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bvme6000hw.h | File | 3.45 KB | 0644 |
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cache.h | File | 296 B | 0644 |
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cacheflush.h | File | 133 B | 0644 |
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cacheflush_mm.h | File | 6.92 KB | 0644 |
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cacheflush_no.h | File | 2.61 KB | 0644 |
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checksum.h | File | 3.4 KB | 0644 |
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cmpxchg.h | File | 3.34 KB | 0644 |
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coldfire.h | File | 1.61 KB | 0644 |
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contregs.h | File | 3.31 KB | 0644 |
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current.h | File | 580 B | 0644 |
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delay.h | File | 3.43 KB | 0644 |
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div64.h | File | 858 B | 0644 |
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dma-mapping.h | File | 291 B | 0644 |
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dma.h | File | 16.65 KB | 0644 |
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dsp56k.h | File | 1.24 KB | 0644 |
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dvma.h | File | 9.67 KB | 0644 |
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elf.h | File | 3.07 KB | 0644 |
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entry.h | File | 5.76 KB | 0644 |
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export.h | File | 74 B | 0644 |
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fb.h | File | 921 B | 0644 |
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fbio.h | File | 9.87 KB | 0644 |
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flat.h | File | 1.02 KB | 0644 |
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floppy.h | File | 5.06 KB | 0644 |
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fpu.h | File | 535 B | 0644 |
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ftrace.h | File | 12 B | 0644 |
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gpio.h | File | 2.64 KB | 0644 |
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hardirq.h | File | 594 B | 0644 |
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hash.h | File | 2.07 KB | 0644 |
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hp300hw.h | File | 186 B | 0644 |
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hwtest.h | File | 467 B | 0644 |
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ide.h | File | 1.67 KB | 0644 |
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idprom.h | File | 725 B | 0644 |
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intersil.h | File | 1.11 KB | 0644 |
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io.h | File | 383 B | 0644 |
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io_mm.h | File | 16.19 KB | 0644 |
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io_no.h | File | 5.26 KB | 0644 |
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irq.h | File | 2.57 KB | 0644 |
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irqflags.h | File | 1.61 KB | 0644 |
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kexec.h | File | 732 B | 0644 |
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linkage.h | File | 1.55 KB | 0644 |
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m5206sim.h | File | 6.4 KB | 0644 |
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m520xsim.h | File | 7.15 KB | 0644 |
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m523xsim.h | File | 7.7 KB | 0644 |
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m525xsim.h | File | 10.57 KB | 0644 |
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m5272sim.h | File | 6.05 KB | 0644 |
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m527xsim.h | File | 13.51 KB | 0644 |
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m528xsim.h | File | 9.37 KB | 0644 |
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m52xxacr.h | File | 3.57 KB | 0644 |
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m5307sim.h | File | 7.52 KB | 0644 |
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m53xxacr.h | File | 3.6 KB | 0644 |
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m53xxsim.h | File | 53.97 KB | 0644 |
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m5407sim.h | File | 6.14 KB | 0644 |
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m5441xsim.h | File | 8.5 KB | 0644 |
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m54xxacr.h | File | 4.82 KB | 0644 |
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m54xxgpt.h | File | 3.66 KB | 0644 |
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m54xxpci.h | File | 6.13 KB | 0644 |
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m54xxsim.h | File | 3.8 KB | 0644 |
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mac_asc.h | File | 520 B | 0644 |
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mac_baboon.h | File | 999 B | 0644 |
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mac_iop.h | File | 5.37 KB | 0644 |
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mac_oss.h | File | 1.83 KB | 0644 |
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mac_psc.h | File | 7.25 KB | 0644 |
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mac_via.h | File | 11.44 KB | 0644 |
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machdep.h | File | 1.34 KB | 0644 |
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machines.h | File | 3.13 KB | 0644 |
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machw.h | File | 588 B | 0644 |
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macintosh.h | File | 2.02 KB | 0644 |
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macints.h | File | 3.28 KB | 0644 |
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math-emu.h | File | 6.74 KB | 0644 |
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mc146818rtc.h | File | 598 B | 0644 |
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mcf8390.h | File | 3.75 KB | 0644 |
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mcf_pgalloc.h | File | 2.37 KB | 0644 |
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mcf_pgtable.h | File | 9.89 KB | 0644 |
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mcfclk.h | File | 1.01 KB | 0644 |
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mcfdma.h | File | 6.51 KB | 0644 |
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mcfgpio.h | File | 8.48 KB | 0644 |
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mcfintc.h | File | 3.09 KB | 0644 |
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mcfmmu.h | File | 3.67 KB | 0644 |
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mcfpit.h | File | 2.22 KB | 0644 |
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mcfqspi.h | File | 1.82 KB | 0644 |
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mcfsim.h | File | 1.5 KB | 0644 |
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mcfslt.h | File | 1.21 KB | 0644 |
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mcftimer.h | File | 2.3 KB | 0644 |
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mcfuart.h | File | 6.91 KB | 0644 |
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mcfwdebug.h | File | 4.99 KB | 0644 |
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mmu.h | File | 243 B | 0644 |
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mmu_context.h | File | 7.2 KB | 0644 |
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mmzone.h | File | 264 B | 0644 |
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module.h | File | 847 B | 0644 |
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motorola_pgalloc.h | File | 2.26 KB | 0644 |
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motorola_pgtable.h | File | 9.2 KB | 0644 |
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movs.h | File | 1.44 KB | 0644 |
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mvme147hw.h | File | 2.81 KB | 0644 |
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mvme16xhw.h | File | 2.16 KB | 0644 |
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natfeat.h | File | 533 B | 0644 |
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nettel.h | File | 2.95 KB | 0644 |
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nubus.h | File | 1.21 KB | 0644 |
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openprom.h | File | 7.98 KB | 0644 |
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oplib.h | File | 9.54 KB | 0644 |
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page.h | File | 1.47 KB | 0644 |
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page_mm.h | File | 4.06 KB | 0644 |
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page_no.h | File | 1.28 KB | 0644 |
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page_offset.h | File | 256 B | 0644 |
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parport.h | File | 837 B | 0644 |
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pci.h | File | 458 B | 0644 |
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pgalloc.h | File | 444 B | 0644 |
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pgtable.h | File | 127 B | 0644 |
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pgtable_mm.h | File | 4.84 KB | 0644 |
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pgtable_no.h | File | 1.57 KB | 0644 |
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processor.h | File | 3.59 KB | 0644 |
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ptrace.h | File | 643 B | 0644 |
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q40_master.h | File | 2.28 KB | 0644 |
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q40ints.h | File | 749 B | 0644 |
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quicc_simple.h | File | 1.79 KB | 0644 |
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raw_io.h | File | 11.41 KB | 0644 |
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segment.h | File | 1.42 KB | 0644 |
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serial.h | File | 1.14 KB | 0644 |
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setup.h | File | 9.25 KB | 0644 |
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signal.h | File | 1.34 KB | 0644 |
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smp.h | File | 32 B | 0644 |
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string.h | File | 1.68 KB | 0644 |
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sun3-head.h | File | 353 B | 0644 |
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sun3_pgalloc.h | File | 2.26 KB | 0644 |
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sun3_pgtable.h | File | 7.65 KB | 0644 |
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sun3ints.h | File | 989 B | 0644 |
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sun3mmu.h | File | 4.91 KB | 0644 |
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sun3x.h | File | 868 B | 0644 |
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sun3xflop.h | File | 5.62 KB | 0644 |
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sun3xprom.h | File | 1.31 KB | 0644 |
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switch_to.h | File | 1.51 KB | 0644 |
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thread_info.h | File | 2.02 KB | 0644 |
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timex.h | File | 974 B | 0644 |
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tlb.h | File | 486 B | 0644 |
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tlbflush.h | File | 5.95 KB | 0644 |
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traps.h | File | 8.33 KB | 0644 |
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uaccess.h | File | 152 B | 0644 |
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uaccess_mm.h | File | 10.31 KB | 0644 |
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uaccess_no.h | File | 3.69 KB | 0644 |
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ucontext.h | File | 570 B | 0644 |
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unaligned.h | File | 600 B | 0644 |
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unistd.h | File | 952 B | 0644 |
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user.h | File | 3.78 KB | 0644 |
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vga.h | File | 651 B | 0644 |
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virtconvert.h | File | 947 B | 0644 |
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zorro.h | File | 1.17 KB | 0644 |
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