diff options
Diffstat (limited to 'firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c')
-rw-r--r-- | firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c | 76 |
1 files changed, 1 insertions, 75 deletions
diff --git a/firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c b/firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c index 15e061103f..2167bb6897 100644 --- a/firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c +++ b/firmware/target/arm/imx233/sansa-fuzeplus/fmradio-i2c-fuzeplus.c | |||
@@ -21,91 +21,17 @@ | |||
21 | 21 | ||
22 | #include "config.h" | 22 | #include "config.h" |
23 | #include "system.h" | 23 | #include "system.h" |
24 | #include "fmradio_i2c.h" | ||
25 | #include "pinctrl-imx233.h" | 24 | #include "pinctrl-imx233.h" |
26 | #include "generic_i2c.h" | ||
27 | #include "rds.h" | 25 | #include "rds.h" |
28 | #include "si4700.h" | 26 | #include "si4700.h" |
29 | 27 | ||
30 | /** | 28 | /** |
31 | * Sansa Fuze+ fmradio uses the following pins: | 29 | * Sansa Fuze+ fmradio uses the following pins: |
32 | * - B0P29 as CE apparently (active high) | 30 | * - B0P29 as CE (active high) |
33 | * - B1P24 as SDA | 31 | * - B1P24 as SDA |
34 | * - B1P22 as SCL | 32 | * - B1P22 as SCL |
35 | * - B2P27 as STC/RDS | 33 | * - B2P27 as STC/RDS |
36 | */ | 34 | */ |
37 | static int fmradio_i2c_bus = -1; | ||
38 | |||
39 | static void i2c_scl_dir(bool out) | ||
40 | { | ||
41 | imx233_pinctrl_enable_gpio(1, 22, out); | ||
42 | } | ||
43 | |||
44 | static void i2c_sda_dir(bool out) | ||
45 | { | ||
46 | imx233_pinctrl_enable_gpio(1, 24, out); | ||
47 | } | ||
48 | |||
49 | static void i2c_scl_out(bool high) | ||
50 | { | ||
51 | imx233_pinctrl_set_gpio(1, 22, high); | ||
52 | } | ||
53 | |||
54 | static void i2c_sda_out(bool high) | ||
55 | { | ||
56 | imx233_pinctrl_set_gpio(1, 24, high); | ||
57 | } | ||
58 | |||
59 | static bool i2c_scl_in(void) | ||
60 | { | ||
61 | return imx233_pinctrl_get_gpio(1, 22); | ||
62 | } | ||
63 | |||
64 | static bool i2c_sda_in(void) | ||
65 | { | ||
66 | return imx233_pinctrl_get_gpio(1, 24); | ||
67 | } | ||
68 | |||
69 | static void i2c_delay(int d) | ||
70 | { | ||
71 | udelay(d); | ||
72 | } | ||
73 | |||
74 | struct i2c_interface fmradio_i2c = | ||
75 | { | ||
76 | .scl_dir = i2c_scl_dir, | ||
77 | .sda_dir = i2c_sda_dir, | ||
78 | .scl_out = i2c_scl_out, | ||
79 | .sda_out = i2c_sda_out, | ||
80 | .scl_in = i2c_scl_in, | ||
81 | .sda_in = i2c_sda_in, | ||
82 | .delay = i2c_delay, | ||
83 | .delay_hd_sta = 4, | ||
84 | .delay_hd_dat = 5, | ||
85 | .delay_su_dat = 1, | ||
86 | .delay_su_sto = 4, | ||
87 | .delay_su_sta = 5, | ||
88 | .delay_thigh = 4 | ||
89 | }; | ||
90 | |||
91 | void fmradio_i2c_init(void) | ||
92 | { | ||
93 | imx233_pinctrl_acquire(1, 24, "fmradio i2c"); | ||
94 | imx233_pinctrl_acquire(1, 22, "fmradio i2c"); | ||
95 | imx233_pinctrl_set_function(1, 24, PINCTRL_FUNCTION_GPIO); | ||
96 | imx233_pinctrl_set_function(1, 22, PINCTRL_FUNCTION_GPIO); | ||
97 | fmradio_i2c_bus = i2c_add_node(&fmradio_i2c); | ||
98 | } | ||
99 | |||
100 | int fmradio_i2c_write(unsigned char address, const unsigned char* buf, int count) | ||
101 | { | ||
102 | return i2c_write_data(fmradio_i2c_bus, address, -1, buf, count); | ||
103 | } | ||
104 | |||
105 | int fmradio_i2c_read(unsigned char address, unsigned char* buf, int count) | ||
106 | { | ||
107 | return i2c_read_data(fmradio_i2c_bus, address, -1, buf, count); | ||
108 | } | ||
109 | 35 | ||
110 | #ifdef HAVE_RDS_CAP | 36 | #ifdef HAVE_RDS_CAP |
111 | /* Low-level RDS Support */ | 37 | /* Low-level RDS Support */ |