diff options
Diffstat (limited to 'rbutil/mkimxboot/dualboot/dualboot.c')
-rw-r--r-- | rbutil/mkimxboot/dualboot/dualboot.c | 64 |
1 files changed, 61 insertions, 3 deletions
diff --git a/rbutil/mkimxboot/dualboot/dualboot.c b/rbutil/mkimxboot/dualboot/dualboot.c index f75673efbe..3cca59bb8a 100644 --- a/rbutil/mkimxboot/dualboot/dualboot.c +++ b/rbutil/mkimxboot/dualboot/dualboot.c | |||
@@ -20,6 +20,8 @@ | |||
20 | ****************************************************************************/ | 20 | ****************************************************************************/ |
21 | #include "regs-pinctrl.h" | 21 | #include "regs-pinctrl.h" |
22 | #include "regs-power.h" | 22 | #include "regs-power.h" |
23 | #include "regs-lradc.h" | ||
24 | #include "regs-digctl.h" | ||
23 | 25 | ||
24 | #define BOOT_ROM_CONTINUE 0 /* continue boot */ | 26 | #define BOOT_ROM_CONTINUE 0 /* continue boot */ |
25 | #define BOOT_ROM_SECTION 1 /* switch to new section *result_id */ | 27 | #define BOOT_ROM_SECTION 1 /* switch to new section *result_id */ |
@@ -59,6 +61,28 @@ static inline int __attribute__((always_inline)) read_pswitch(void) | |||
59 | #endif | 61 | #endif |
60 | } | 62 | } |
61 | 63 | ||
64 | /* only works for channels <=7, always divide by 2, never accumulates */ | ||
65 | static inline void __attribute__((always_inline)) setup_lradc(int src) | ||
66 | { | ||
67 | BF_CLR(LRADC_CTRL0, SFTRST); | ||
68 | BF_CLR(LRADC_CTRL0, CLKGATE); | ||
69 | /* don't bother changing the source, we are early enough at boot so that | ||
70 | * channel x is mapped to source x */ | ||
71 | HW_LRADC_CHn_CLR(src) = BM_OR2(LRADC_CHn, NUM_SAMPLES, ACCUMULATE); | ||
72 | BF_SETV(LRADC_CTRL2, DIVIDE_BY_TWO, 1 << src); | ||
73 | } | ||
74 | |||
75 | #define BP_LRADC_CTRL1_LRADCx_IRQ(x) (x) | ||
76 | #define BM_LRADC_CTRL1_LRADCx_IRQ(x) (1 << (x)) | ||
77 | |||
78 | static inline int __attribute__((always_inline)) read_lradc(int src) | ||
79 | { | ||
80 | BF_CLR(LRADC_CTRL1, LRADCx_IRQ(src)); | ||
81 | BF_SETV(LRADC_CTRL0, SCHEDULE, 1 << src); | ||
82 | while(!BF_RD(LRADC_CTRL1, LRADCx_IRQ(src))); | ||
83 | return BF_RDn(LRADC_CHn, src, VALUE); | ||
84 | } | ||
85 | |||
62 | static inline void __attribute__((noreturn)) power_down() | 86 | static inline void __attribute__((noreturn)) power_down() |
63 | { | 87 | { |
64 | #ifdef SANSA_FUZEPLUS | 88 | #ifdef SANSA_FUZEPLUS |
@@ -120,11 +144,45 @@ static int boot_decision(int context) | |||
120 | return !read_gpio(2, 7) ? BOOT_OF : BOOT_ROCK; | 144 | return !read_gpio(2, 7) ? BOOT_OF : BOOT_ROCK; |
121 | } | 145 | } |
122 | #elif defined(SONY_NWZE360) || defined(SONY_NWZE370) | 146 | #elif defined(SONY_NWZE360) || defined(SONY_NWZE370) |
147 | static int local_decision(void) | ||
148 | { | ||
149 | /* read keys and pswitch */ | ||
150 | int val = read_lradc(0); | ||
151 | /* if hold is on, power off | ||
152 | * if back is pressed, boot to OF | ||
153 | * if play is pressed, boot RB | ||
154 | * otherwise power off */ | ||
155 | if(read_gpio(0, 9) == 0) | ||
156 | return BOOT_STOP; | ||
157 | if(val >= 1050 && val < 1150) | ||
158 | return BOOT_OF; | ||
159 | if(val >= 1420 && val < 1520) | ||
160 | return BOOT_ROCK; | ||
161 | return BOOT_STOP; | ||
162 | } | ||
163 | |||
123 | static int boot_decision(int context) | 164 | static int boot_decision(int context) |
124 | { | 165 | { |
125 | /* Power button set PSWITCH to 3, all other buttons to 1. So any | 166 | setup_lradc(0); // setup LRADC channel 0 to read keys |
126 | * button press will boot OF */ | 167 | HW_PINCTRL_PULLn_SET(0) = 1 << 9; // enable pullup on hold key (B0P09) |
127 | return read_pswitch() == 1 ? BOOT_OF : BOOT_ROCK; | 168 | /* make a decision */ |
169 | int decision = local_decision(); | ||
170 | /* in USB or alarm context, stick to it */ | ||
171 | if(context == CONTEXT_USB || context == CONTEXT_RTC) | ||
172 | { | ||
173 | /* never power down so replace power off decision by rockbox */ | ||
174 | return decision == BOOT_STOP ? BOOT_ROCK : decision; | ||
175 | } | ||
176 | /* otherwise start a 1 second timeout. Any decision change | ||
177 | * will result in power down */ | ||
178 | uint32_t tmo = HW_DIGCTL_MICROSECONDS + 1000000; | ||
179 | while(HW_DIGCTL_MICROSECONDS < tmo) | ||
180 | { | ||
181 | int new_dec = local_decision(); | ||
182 | if(new_dec != decision) | ||
183 | return BOOT_STOP; | ||
184 | } | ||
185 | return decision; | ||
128 | } | 186 | } |
129 | #else | 187 | #else |
130 | #warning You should define a target specific boot decision function | 188 | #warning You should define a target specific boot decision function |