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| author | Cástor Muñoz <cmvidal@gmail.com> | 2016-02-05 01:12:02 +0100 |
|---|---|---|
| committer | Cástor Muñoz <cmvidal@gmail.com> | 2016-05-25 10:59:44 +0200 |
| commit | e863f9a0ce8d968b085252c3b093b17ca07b65dd (patch) | |
| tree | 04eedd67fc1dc82ed7e6fc533639171456fde788 /firmware | |
| parent | 9c032ba61aeb35625d20bf718c9394e092f88316 (diff) | |
| download | rockbox-e863f9a0ce8d968b085252c3b093b17ca07b65dd.tar.gz rockbox-e863f9a0ce8d968b085252c3b093b17ca07b65dd.zip | |
iPod Classic: piezo support for bootloader
Low level functions that do not depend on Rockbox kernel,
intended to be used by the bootloader, dualboot-installer,
RB drivers or other .dfu tools.
Change-Id: If80214d26e505265ace19d9704f1e1300f98b2f4
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/SOURCES | 2 | ||||
| -rw-r--r-- | firmware/target/arm/s5l8702/ipod6g/piezo-ipod6g.c | 28 | ||||
| -rw-r--r-- | firmware/target/arm/s5l8702/ipod6g/piezo.h | 8 |
3 files changed, 37 insertions, 1 deletions
diff --git a/firmware/SOURCES b/firmware/SOURCES index 70729bcfa3..2cace81c8b 100644 --- a/firmware/SOURCES +++ b/firmware/SOURCES @@ -1608,6 +1608,7 @@ target/arm/s5l8702/dma-s5l8702.c target/arm/s5l8702/clocking-s5l8702.c target/arm/s5l8702/ipod6g/lcd-ipod6g.c target/arm/s5l8702/ipod6g/lcd-asm-ipod6g.S +target/arm/s5l8702/ipod6g/piezo-ipod6g.c #if 0 //TODO target/arm/s5l8702/postmortemstub.S #endif @@ -1625,7 +1626,6 @@ target/arm/s5l8702/debug-s5l8702.c target/arm/s5l8702/pcm-s5l8702.c target/arm/s5l8702/ipod6g/audio-ipod6g.c target/arm/s5l8702/ipod6g/adc-ipod6g.c -target/arm/s5l8702/ipod6g/piezo-ipod6g.c #endif #endif diff --git a/firmware/target/arm/s5l8702/ipod6g/piezo-ipod6g.c b/firmware/target/arm/s5l8702/ipod6g/piezo-ipod6g.c index f3c00e34c5..06735673be 100644 --- a/firmware/target/arm/s5l8702/ipod6g/piezo-ipod6g.c +++ b/firmware/target/arm/s5l8702/ipod6g/piezo-ipod6g.c @@ -95,3 +95,31 @@ void piezo_button_beep(bool beep, bool force) piezo_start(40, 4); } } + +#ifdef BOOTLOADER +void piezo_tone(uint32_t period /*uS*/, int32_t duration /*ms*/) +{ + int32_t stop = USEC_TIMER + duration*1000; + uint32_t level = 0; + + while ((int32_t)USEC_TIMER - stop < 0) + { + level ^= 1; + GPIOCMD = 0x0060e | level; + udelay(period >> 1); + } + + GPIOCMD = 0x0060e; +} + +void piezo_seq(uint16_t *seq) +{ + uint16_t period; + + while ((period = *seq++) != 0) + { + piezo_tone(period, *seq++); + udelay(*seq++ * 1000); + } +} +#endif diff --git a/firmware/target/arm/s5l8702/ipod6g/piezo.h b/firmware/target/arm/s5l8702/ipod6g/piezo.h index 987d4ffdda..063b8231a6 100644 --- a/firmware/target/arm/s5l8702/ipod6g/piezo.h +++ b/firmware/target/arm/s5l8702/ipod6g/piezo.h @@ -18,9 +18,17 @@ * KIND, either express or implied. * ****************************************************************************/ +#ifndef __PIEZO_H__ +#define __PIEZO_H__ void piezo_init(void); void piezo_stop(void); void piezo_clear(void); bool piezo_busy(void); void piezo_button_beep(bool beep, bool force); + +#ifdef BOOTLOADER +void piezo_seq(uint16_t *seq); +#endif + +#endif /* __PIEZO_H__ */ |