diff options
author | Rob Purchase <shotofadds@rockbox.org> | 2009-10-08 15:47:43 +0000 |
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committer | Rob Purchase <shotofadds@rockbox.org> | 2009-10-08 15:47:43 +0000 |
commit | 292a53da4b862dcb942b02eb47664efaf294d8c9 (patch) | |
tree | 613ea37b76ce89abb9235fa1587978177c708998 /firmware/target/arm/tcc780x/cowond2/button-cowond2.c | |
parent | 5a435e62d062c7bc75c27a324e89de06cc4543f9 (diff) | |
download | rockbox-292a53da4b862dcb942b02eb47664efaf294d8c9.tar.gz rockbox-292a53da4b862dcb942b02eb47664efaf294d8c9.zip |
D2: Use a common function for reading ADC values from the PMU
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@23007 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/target/arm/tcc780x/cowond2/button-cowond2.c')
-rw-r--r-- | firmware/target/arm/tcc780x/cowond2/button-cowond2.c | 29 |
1 files changed, 8 insertions, 21 deletions
diff --git a/firmware/target/arm/tcc780x/cowond2/button-cowond2.c b/firmware/target/arm/tcc780x/cowond2/button-cowond2.c index e66ba2332a..0f9a9b3d75 100644 --- a/firmware/target/arm/tcc780x/cowond2/button-cowond2.c +++ b/firmware/target/arm/tcc780x/cowond2/button-cowond2.c | |||
@@ -41,35 +41,22 @@ static int short_cmp(const void *a, const void *b) | |||
41 | 41 | ||
42 | void button_read_touch() | 42 | void button_read_touch() |
43 | { | 43 | { |
44 | unsigned char buf[3]; | ||
45 | |||
46 | static long last_touch_interrupt = 0; | 44 | static long last_touch_interrupt = 0; |
47 | static int touch_data_index = 0; | 45 | static int touch_data_index = 0; |
48 | 46 | ||
49 | /* put the touchscreen into idle mode */ | 47 | /* put the touchscreen into idle mode */ |
50 | pcf50606_write(PCF5060X_ADCC1, 0); | 48 | pcf50606_write(PCF5060X_ADCC1, 0); |
51 | 49 | ||
52 | /* here the touch coordinates are read 5 times */ | ||
53 | /* they will be sorted and the middle one will be used */ | ||
54 | pcf50606_write(PCF5060X_ADCC2, (0xE<<1) | 1); /* ADC start X+Y */ | ||
55 | |||
56 | do { | ||
57 | buf[1] = pcf50606_read(PCF5060X_ADCS2); | ||
58 | } while (!(buf[1] & 0x80)); /* Busy wait on ADCRDY flag */ | ||
59 | |||
60 | buf[0] = pcf50606_read(PCF5060X_ADCS1); | ||
61 | buf[2] = pcf50606_read(PCF5060X_ADCS3); | ||
62 | |||
63 | pcf50606_write(PCF5060X_ADCC2, 0); /* ADC stop */ | ||
64 | |||
65 | if (TIME_AFTER(current_tick, last_touch_interrupt + 1)) | 50 | if (TIME_AFTER(current_tick, last_touch_interrupt + 1)) |
66 | { | 51 | { |
67 | /* resets the index if the last touch could not be read 5 times */ | 52 | /* resets the index if the last touch could not be read 5 times */ |
68 | touch_data_index = 0; | 53 | touch_data_index = 0; |
69 | } | 54 | } |
70 | 55 | ||
71 | x[touch_data_index] = (buf[0] << 2) | (buf[1] & 3); | 56 | /* here the touch coordinates are read 5 times */ |
72 | y[touch_data_index] = (buf[2] << 2) | ((buf[1] & 0xC) >> 2); | 57 | /* they will be sorted and the middle one will be used */ |
58 | pcf50606_read_adc(PCF5060X_ADC_TSC_XY, | ||
59 | &x[touch_data_index], &y[touch_data_index]); | ||
73 | 60 | ||
74 | touch_data_index++; | 61 | touch_data_index++; |
75 | 62 | ||
@@ -126,7 +113,7 @@ void button_init_device(void) | |||
126 | { | 113 | { |
127 | /* Configure GPIOA 4 (POWER) and 8 (HOLD) for input */ | 114 | /* Configure GPIOA 4 (POWER) and 8 (HOLD) for input */ |
128 | GPIOA_DIR &= ~0x110; | 115 | GPIOA_DIR &= ~0x110; |
129 | 116 | ||
130 | /* Configure GPIOB 4 (button pressed) for input */ | 117 | /* Configure GPIOB 4 (button pressed) for input */ |
131 | GPIOB_DIR &= ~0x10; | 118 | GPIOB_DIR &= ~0x10; |
132 | 119 | ||
@@ -229,12 +216,12 @@ int button_read_device(int *data) | |||
229 | touch_hold = false; | 216 | touch_hold = false; |
230 | pcf50606_write(PCF5060X_ADCC1, 1); | 217 | pcf50606_write(PCF5060X_ADCC1, 1); |
231 | } | 218 | } |
232 | 219 | ||
233 | if (!(GPIOA & 0x4)) | 220 | if (!(GPIOA & 0x4)) |
234 | btn |= BUTTON_POWER; | 221 | btn |= BUTTON_POWER; |
235 | 222 | ||
236 | if (btn & BUTTON_TOUCHSCREEN && !is_backlight_on(true)) | 223 | if (btn & BUTTON_TOUCHSCREEN && !is_backlight_on(true)) |
237 | old_data = *data = 0; | 224 | old_data = *data = 0; |
238 | 225 | ||
239 | return btn; | 226 | return btn; |
240 | } | 227 | } |