diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/mips/include/asm/txx9/generic.h | 5 | ||||
| -rw-r--r-- | arch/mips/txx9/Kconfig | 4 | ||||
| -rw-r--r-- | arch/mips/txx9/generic/7segled.c | 112 | ||||
| -rw-r--r-- | arch/mips/txx9/generic/Makefile | 1 | ||||
| -rw-r--r-- | arch/mips/txx9/rbtx4939/setup.c | 31 |
5 files changed, 153 insertions, 0 deletions
diff --git a/arch/mips/include/asm/txx9/generic.h b/arch/mips/include/asm/txx9/generic.h index 4316a3e57678..9cde0090cbf6 100644 --- a/arch/mips/include/asm/txx9/generic.h +++ b/arch/mips/include/asm/txx9/generic.h @@ -86,4 +86,9 @@ void txx9_iocled_init(unsigned long baseaddr, int basenum, unsigned int num, int lowactive, const char *color, char **deftriggers); +/* 7SEG LED */ +void txx9_7segled_init(unsigned int num, + void (*putc)(unsigned int pos, unsigned char val)); +int txx9_7segled_putc(unsigned int pos, char c); + #endif /* __ASM_TXX9_GENERIC_H */ diff --git a/arch/mips/txx9/Kconfig b/arch/mips/txx9/Kconfig index 17052db4161d..5a176ea0bd29 100644 --- a/arch/mips/txx9/Kconfig +++ b/arch/mips/txx9/Kconfig @@ -49,6 +49,7 @@ config TOSHIBA_RBTX4939 bool "Toshiba RBTX4939 bobard" depends on MACH_TX49XX select SOC_TX4939 + select TXX9_7SEGLED help This Toshiba board is based on the TX4939 processor. Say Y here to support this machine type @@ -86,6 +87,9 @@ config SOC_TX4939 select HW_HAS_PCI select PCI_TX4927 +config TXX9_7SEGLED + bool + config TOSHIBA_FPCIB0 bool "FPCIB0 Backplane Support" depends on PCI && MACH_TXX9 diff --git a/arch/mips/txx9/generic/7segled.c b/arch/mips/txx9/generic/7segled.c new file mode 100644 index 000000000000..727ab21b6618 --- /dev/null +++ b/arch/mips/txx9/generic/7segled.c @@ -0,0 +1,112 @@ +/* + * 7 Segment LED routines + * Based on RBTX49xx patch from CELF patch archive. + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + * + * (C) Copyright TOSHIBA CORPORATION 2005-2007 + * All Rights Reserved. + */ +#include <linux/sysdev.h> +#include <linux/slab.h> +#include <linux/map_to_7segment.h> +#include <asm/txx9/generic.h> + +static unsigned int tx_7segled_num; +static void (*tx_7segled_putc)(unsigned int pos, unsigned char val); + +void __init txx9_7segled_init(unsigned int num, + void (*putc)(unsigned int pos, unsigned char val)) +{ + tx_7segled_num = num; + tx_7segled_putc = putc; +} + +static SEG7_CONVERSION_MAP(txx9_seg7map, MAP_ASCII7SEG_ALPHANUM_LC); + +int txx9_7segled_putc(unsigned int pos, char c) +{ + if (pos >= tx_7segled_num) + return -EINVAL; + c = map_to_seg7(&txx9_seg7map, c); + if (c < 0) + return c; + tx_7segled_putc(pos, c); + return 0; +} + +static ssize_t ascii_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t size) +{ + unsigned int ch = dev->id; + txx9_7segled_putc(ch, buf[0]); + return size; +} + +static ssize_t raw_store(struct sys_device *dev, + struct sysdev_attribute *attr, + const char *buf, size_t size) +{ + unsigned int ch = dev->id; + tx_7segled_putc(ch, buf[0]); + return size; +} + +static SYSDEV_ATTR(ascii, 0200, NULL, ascii_store); +static SYSDEV_ATTR(raw, 0200, NULL, raw_store); + +static ssize_t map_seg7_show(struct sysdev_class *class, char *buf) +{ + memcpy(buf, &txx9_seg7map, sizeof(txx9_seg7map)); + return sizeof(txx9_seg7map); +} + +static ssize_t map_seg7_store(struct sysdev_class *class, + const char *buf, size_t size) +{ + if (size != sizeof(txx9_seg7map)) + return -EINVAL; + memcpy(&txx9_seg7map, buf, size); + return size; +} + +static SYSDEV_CLASS_ATTR(map_seg7, 0600, map_seg7_show, map_seg7_store); + +static struct sysdev_class tx_7segled_sysdev_class = { + .name = "7segled", +}; + +static int __init tx_7segled_init_sysfs(void) +{ + int error, i; + if (!tx_7segled_num) + return -ENODEV; + error = sysdev_class_register(&tx_7segled_sysdev_class); + if (error) + return error; + error = sysdev_class_create_file(&tx_7segled_sysdev_class, + &attr_map_seg7); + if (error) + return error; + for (i = 0; i < tx_7segled_num; i++) { + struct sys_device *dev; + dev = kzalloc(sizeof(*dev), GFP_KERNEL); + if (!dev) { + error = -ENODEV; + break; + } + dev->id = i; + dev->cls = &tx_7segled_sysdev_class; + error = sysdev_register(dev); + if (!error) { + sysdev_create_file(dev, &attr_ascii); + sysdev_create_file(dev, &attr_raw); + } + } + return error; +} + +device_initcall(tx_7segled_init_sysfs); diff --git a/arch/mips/txx9/generic/Makefile b/arch/mips/txx9/generic/Makefile index 0030d23bef5b..f2579ce054a1 100644 --- a/arch/mips/txx9/generic/Makefile +++ b/arch/mips/txx9/generic/Makefile @@ -10,5 +10,6 @@ obj-$(CONFIG_SOC_TX4938) += mem_tx4927.o setup_tx4938.o irq_tx4938.o obj-$(CONFIG_SOC_TX4939) += setup_tx4939.o irq_tx4939.o obj-$(CONFIG_TOSHIBA_FPCIB0) += smsc_fdc37m81x.o obj-$(CONFIG_SPI) += spi_eeprom.o +obj-$(CONFIG_TXX9_7SEGLED) += 7segled.o EXTRA_CFLAGS += -Werror diff --git a/arch/mips/txx9/rbtx4939/setup.c b/arch/mips/txx9/rbtx4939/setup.c index 9855d7bccc20..c88517774910 100644 --- a/arch/mips/txx9/rbtx4939/setup.c +++ b/arch/mips/txx9/rbtx4939/setup.c @@ -239,6 +239,32 @@ static inline void rbtx4939_led_setup(void) } #endif +static void __rbtx4939_7segled_putc(unsigned int pos, unsigned char val) +{ +#if defined(CONFIG_LEDS_CLASS) || defined(CONFIG_LEDS_CLASS_MODULE) + unsigned long flags; + local_irq_save(flags); + /* bit7: reserved for LED class */ + led_val[pos] = (led_val[pos] & 0x80) | (val & 0x7f); + val = led_val[pos]; + local_irq_restore(flags); +#endif + writeb(val, rbtx4939_7seg_addr(pos / 4, pos % 4)); +} + +static void rbtx4939_7segled_putc(unsigned int pos, unsigned char val) +{ + /* convert from map_to_seg7() notation */ + val = (val & 0x88) | + ((val & 0x40) >> 6) | + ((val & 0x20) >> 4) | + ((val & 0x10) >> 2) | + ((val & 0x04) << 2) | + ((val & 0x02) << 4) | + ((val & 0x01) << 6); + __rbtx4939_7segled_putc(pos, val); +} + static void __init rbtx4939_arch_init(void) { rbtx4939_pci_setup(); @@ -269,6 +295,8 @@ static void __init rbtx4939_device_init(void) static void __init rbtx4939_setup(void) { + int i; + rbtx4939_ebusc_setup(); /* always enable ATA0 */ txx9_set64(&tx4939_ccfgptr->pcfg, TX4939_PCFG_ATA0MODE); @@ -279,6 +307,9 @@ static void __init rbtx4939_setup(void) _machine_restart = rbtx4939_machine_restart; + txx9_7segled_init(RBTX4939_MAX_7SEGLEDS, rbtx4939_7segled_putc); + for (i = 0; i < RBTX4939_MAX_7SEGLEDS; i++) + txx9_7segled_putc(i, '-'); pr_info("RBTX4939 (Rev %02x) --- FPGA(Rev %02x) DIPSW:%02x,%02x\n", readb(rbtx4939_board_rev_addr), readb(rbtx4939_ioc_rev_addr), readb(rbtx4939_udipsw_addr), readb(rbtx4939_bdipsw_addr)); |