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author | Daniel Stenberg <daniel@haxx.se> | 2005-01-27 12:16:45 +0000 |
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committer | Daniel Stenberg <daniel@haxx.se> | 2005-01-27 12:16:45 +0000 |
commit | 918918ebab7cd312fb6402bb45ba810194353145 (patch) | |
tree | 1d8810786dca01e1bcd4f3551d9c89a687db96e8 /firmware/drivers/i2c.c | |
parent | 70470f0e74ceadcf200b40d0552ddeafd9187579 (diff) | |
download | rockbox-918918ebab7cd312fb6402bb45ba810194353145.tar.gz rockbox-918918ebab7cd312fb6402bb45ba810194353145.zip |
introducing CONFIG_I2C for kind of I2C in use
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@5675 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'firmware/drivers/i2c.c')
-rw-r--r-- | firmware/drivers/i2c.c | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/firmware/drivers/i2c.c b/firmware/drivers/i2c.c index f5e8cb5240..ed12145da9 100644 --- a/firmware/drivers/i2c.c +++ b/firmware/drivers/i2c.c | |||
@@ -24,7 +24,7 @@ | |||
24 | #include "system.h" | 24 | #include "system.h" |
25 | 25 | ||
26 | /* cute little functions, atomic read-modify-write */ | 26 | /* cute little functions, atomic read-modify-write */ |
27 | #ifdef HAVE_GMINI_I2C | 27 | #if CONFIG_I2C == I2C_GMINI |
28 | 28 | ||
29 | /* This is done like this in the Archos' firmware. | 29 | /* This is done like this in the Archos' firmware. |
30 | * However, the TCC370 has an integrated I2C | 30 | * However, the TCC370 has an integrated I2C |
@@ -43,7 +43,7 @@ | |||
43 | #define SCL_OUTPUT (P3CONH |= 0x01) | 43 | #define SCL_OUTPUT (P3CONH |= 0x01) |
44 | #define SCL (P3 & 0x10) | 44 | #define SCL (P3 & 0x10) |
45 | 45 | ||
46 | #else | 46 | #else /* non Gmini below */ |
47 | 47 | ||
48 | /* SDA is PB7 */ | 48 | /* SDA is PB7 */ |
49 | #define SDA_LO and_b(~0x80, &PBDRL) | 49 | #define SDA_LO and_b(~0x80, &PBDRL) |
@@ -52,7 +52,7 @@ | |||
52 | #define SDA_OUTPUT or_b(0x80, &PBIORL) | 52 | #define SDA_OUTPUT or_b(0x80, &PBIORL) |
53 | #define SDA (PBDR & 0x80) | 53 | #define SDA (PBDR & 0x80) |
54 | 54 | ||
55 | #ifdef HAVE_ONDIO_I2C | 55 | #if CONFIG_I2C == I2C_ONDIO |
56 | /* Ondio pinout, SCL moved to PB6 */ | 56 | /* Ondio pinout, SCL moved to PB6 */ |
57 | #define SCL_INPUT and_b(~0x40, &PBIORL) | 57 | #define SCL_INPUT and_b(~0x40, &PBIORL) |
58 | #define SCL_OUTPUT or_b(0x40, &PBIORL) | 58 | #define SCL_OUTPUT or_b(0x40, &PBIORL) |
@@ -67,7 +67,7 @@ | |||
67 | #define SCL_HI or_b(0x20, &PBDRH) | 67 | #define SCL_HI or_b(0x20, &PBDRH) |
68 | #define SCL (PBDR & 0x2000) | 68 | #define SCL (PBDR & 0x2000) |
69 | #endif | 69 | #endif |
70 | #endif | 70 | #endif /* ! I2C_GMINI */ |
71 | 71 | ||
72 | /* arbitrary delay loop */ | 72 | /* arbitrary delay loop */ |
73 | #define DELAY do { int _x; for(_x=0;_x<20;_x++);} while (0) | 73 | #define DELAY do { int _x; for(_x=0;_x<20;_x++);} while (0) |
@@ -106,14 +106,14 @@ void i2c_init(void) | |||
106 | { | 106 | { |
107 | int i; | 107 | int i; |
108 | 108 | ||
109 | #ifdef HAVE_GMINI_I2C | 109 | #if CONFIG_I2C == I2C_GMINI |
110 | SCL_INPUT; | 110 | SCL_INPUT; |
111 | SDA_INPUT; | 111 | SDA_INPUT; |
112 | #else | 112 | #else |
113 | #ifdef HAVE_ONDIO_I2C | 113 | #if CONFIG_I2C == I2C_ONDIO |
114 | /* make PB5, PB6 & PB7 general I/O */ | 114 | /* make PB5, PB6 & PB7 general I/O */ |
115 | PBCR2 &= ~0xfc00; /* includes PB5, see FIXME below */ | 115 | PBCR2 &= ~0xfc00; /* includes PB5, see FIXME below */ |
116 | #else | 116 | #else /* not Gmini, not Ondio */ |
117 | /* make PB5, PB7 & PB13 general I/O */ | 117 | /* make PB5, PB7 & PB13 general I/O */ |
118 | PBCR1 &= ~0x0c00; /* PB13 */ | 118 | PBCR1 &= ~0x0c00; /* PB13 */ |
119 | PBCR2 &= ~0xcc00; /* PB5 and PB7, see FIXME below */ | 119 | PBCR2 &= ~0xcc00; /* PB5 and PB7, see FIXME below */ |
@@ -124,7 +124,7 @@ void i2c_init(void) | |||
124 | /* for Recorders, it shuts off the charger, for FM/V2 it holds power */ | 124 | /* for Recorders, it shuts off the charger, for FM/V2 it holds power */ |
125 | or_b(0x20, &PBIORL); | 125 | or_b(0x20, &PBIORL); |
126 | or_b(0x20, &PBDRL); | 126 | or_b(0x20, &PBDRL); |
127 | #endif | 127 | #endif /* end of non-Gmini */ |
128 | 128 | ||
129 | SCL_OUTPUT; | 129 | SCL_OUTPUT; |
130 | SDA_OUTPUT; | 130 | SDA_OUTPUT; |