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mount.c @ 959

Revision 959, 7.8 KB checked in by reyalp, 3 years ago (diff)
ixus900_sd900 port by pixeldoc http://chdk.kernreaktor.org/mantis/view.php?id=347
Property svn:eol-style set to `native`

Line
1	// Multiple Partition support, used if CAM_MULTIPART enabled
2
3	// ROM:FF9D32AC
4	void __attribute__((naked,noinline)) init_file_modules_task() {
5	asm volatile(
6	"STMFD SP!, {R4,LR}\n"
7
8	"BL _Unmount_FileSystem\n" // +
9
10	"BL sub_FFB3B500\n"
11	"SUBS R4, R0, #0\n"
12	"MOV R0, #0x5000\n"
13	"MOV R1, #0\n"
14	"ADD R0, R0, #6\n"
15	"BEQ loc_FF9D32CC\n"
16	"BL sub_FF9A42AC\n" // PostLogicalEventToUI
17	"loc_FF9D32CC:\n"
18
19	//"BL sub_FFB3B52C\n" // orginal
20	"BL sub_FFB3B52C_my\n" // + --->
21
22	"MOV R0, #0x5000\n"
23	"CMP R4, #0\n"
24	"MOV R1, R4\n"
25	"ADD R0, R0, #6\n"
26	"LDMNEFD SP!, {R4,PC}\n"
27	"LDMFD SP!, {R4,LR}\n"
28	);
29
30	//debug_led(1); // DEBUG help (check if code gets executed)
31
32	asm volatile(
33	"B sub_FF9A42AC\n" // PostLogicalEventToUI
34	);
35	}
36
37	// ROM:FFB3B52C
38	void __attribute__((naked,noinline)) sub_FFB3B52C_my() {
39	asm volatile(
40	"STR LR, [SP,#-4]!\n"
41
42	//"BL Mount_FileSystem\n" // orginal
43	"BL Mount_FileSystem_my\n" // +
44
45	"LDR R3, =0xBDDC\n"
46	"LDR R2, [R3]\n"
47	"CMP R2, #0\n"
48	"BNE loc_FFB3B568\n"
49	"BL sub_FF9F5044\n"
50	"AND R0, R0, #0xFF\n"
51	"BL sub_FF835A3C\n"
52	"BL sub_FF9F5044\n"
53	"AND R0, R0, #0xFF\n"
54	"BL sub_FF86F738\n"
55	"BL sub_FF9F5054\n"
56	"AND R0, R0, #0xFF\n"
57	"BL sub_FF835B18\n"
58	"loc_FFB3B568:\n"
59	"LDR R2, =0xBDD8\n"
60	"MOV R3, #1\n"
61	"STR R3, [R2]\n"
62	"LDR PC, [SP],#4\n"
63	);
64	}
65
66	// ROM:FF87A8AC
67	void __attribute__((naked,noinline)) Mount_FileSystem_my() {
68	asm volatile(
69	"STMFD SP!, {R4-R6,LR}\n"
70	"MOV R5, #0\n"
71	"LDR R6, =0x2DA00\n"
72	"MOV R0, R5\n"
73	"BL sub_FF87A294\n"
74	"LDR R0, [R6,#0x38]\n"
75	"BL sub_FF879954\n"
76	"SUBS R1, R0, #0\n"
77	"MOV R0, R5\n"
78	"BNE loc_FF87A8EC\n"
79	"LDR R3, =0x27EC\n"
80	"LDR R2, =0x27E4\n"
81	"STR R1, [R3]\n"
82	"LDR R3, =0x27E8\n"
83	"STR R1, [R2]\n"
84	"STR R1, [R3]\n"
85	"loc_FF87A8EC:\n"
86	"BL sub_FF87A2E4\n"
87	"MOV R0, R5\n"
88
89	//"BL sub_FF87A60C\n" // orginal
90	"BL sub_FF87A60C_my\n" // + --->
91
92	"MOV R4, R0\n"
93	"MOV R0, R5\n"
94	"BL sub_FF87A694\n" // Mounter.c:808
95	"AND R4, R4, R0\n"
96	"MOV R2, R4\n"
97	"MOV R0, R6\n"
98	"LDR R1, [R6,#0x3C]\n"
99	"BL sub_FF87A85C\n"
100	"STR R0, [R6,#0x40]\n"
101	"LDMFD SP!, {R4-R6,PC}\n"
102	);
103	}
104
105	// ROM:FF87A60C
106	void __attribute__((naked,noinline)) sub_FF87A60C_my() {
107	asm volatile(
108	"STMFD SP!, {R4-R7,LR}\n"
109	"LDR R7, =0x27E8\n"
110	"LDR R3, [R7]\n"
111	"MOV R4, R0\n"
112	"CMP R3, #0\n"
113	"ADD R3, R4, R4,LSL#1\n"
114	"RSB R3, R4, R3,LSL#3\n"
115	"LDR R6, =0x2DA38\n"
116	"MOV R5, R3,LSL#2\n"
117	"MOV R1, R4\n"
118
119	//"BNE loc_FF87A680\n" // gcc: loc_FF87A680 not found
120	"BNE sub_FF87A680\n" // +
121
122	"LDR R0, [R6,R5]\n"
123
124	//"BL sub_FF87A3A0\n" // orginal, Mounter.c:692
125	"BL sub_FF87A3A0_my\n" // + --->
126
127	"SUBS R3, R0, #0\n"
128	"MOV R1, R4\n"
129	"BEQ loc_FF87A658\n"
130	"LDR R0, [R6,R5]\n"
131	"BL sub_FF87A4EC\n" // Mounter.c:728
132	"MOV R3, R0\n"
133	"loc_FF87A658:\n"
134	"CMP R3, #0\n"
135	"MOV R0, R4\n"
136	"BEQ loc_FF87A66C\n"
137	"BL sub_FF879A2C\n"
138	"MOV R3, R0\n"
139	"loc_FF87A66C:\n"
140	"CMP R3, #0\n"
141	"MOV R0, R3\n"
142	"MOVNE R3, #1\n"
143	"STRNE R3, [R7]\n"
144	"LDMFD SP!, {R4-R7,PC}\n"
145	"loc_FF87A680:\n"
146	"MOV R0, #1\n"
147	"LDMFD SP!, {R4-R7,PC}\n"
148	);
149	}
150
151	// ROM:FF87A3A0
152	void __attribute__((naked,noinline)) sub_FF87A3A0_my() {
153	asm volatile(
154	"STMFD SP!, {R4-R8,LR}\n"
155	"MOV R5, R1\n"
156	"MOV R8, R5,LSL#1\n"
157	"ADD R3, R8, R5\n"
158	"LDR R2, =0x2DA3C\n"
159	"SUB SP, SP, #8\n"
160	"RSB R3, R5, R3,LSL#3\n"
161	"LDR R1, [R2,R3,LSL#2]\n"
162	"MOV R6, #0\n"
163	"STR R6, [SP]\n"
164	"MOV R7, R0\n"
165	"STR R6, [SP,#4]\n"
166	"CMP R1, #5\n"
167	"LDRLS PC, [PC,R1,LSL#2]\n"
168	"B loc_FF87A49C\n"
169	".long loc_FF87A440\n"
170	".long loc_FF87A3F4\n"
171	".long loc_FF87A3F4\n"
172	".long loc_FF87A3F4\n"
173	".long loc_FF87A3F4\n"
174	".long loc_FF87A48C\n"
175	"loc_FF87A3F4:\n"
176	"MOV R0, #3\n"
177	"MOV R1, #0x200\n"
178	"MOV R2, #0\n"
179	"BL sub_FF812834\n"
180	"SUBS R6, R0, #0\n"
181
182	//"BEQ loc_FF87A4D0\n" // gcc: loc_FF87A4D0 not found
183	"BEQ sub_FF87A4D0\n" // +
184
185	"ADD R12, R8, R5\n"
186	"RSB R12, R5, R12,LSL#3\n"
187	"LDR R4, =0x2DA4C\n"
188	"MOV R0, R7\n"
189	"MOV R1, #0\n"
190	"MOV R2, #1\n"
191	"MOV R3, R6\n"
192	"MOV LR, PC\n"
193	"LDR PC, [R4,R12,LSL#2]\n"
194	"CMP R0, #1\n"
195	"BNE loc_FF87A448\n"
196	"MOV R0, #3\n"
197	"BL sub_FF812904\n"
198	"loc_FF87A440:\n"
199	"MOV R0, #0\n"
200
201	//"B loc_FF87A4D0\n" // original
202	"B sub_FF87A4D0\n" // +
203
204	"loc_FF87A448:\n"
205	"MOV R0, R7\n"
206	"BL sub_FF88AD88\n"
207	"MOV R1, R0\n"
208	"ADD R2, SP, #4\n"
209	"MOV R3, SP\n"
210	"MOV R0, R6\n"
211
212	//"BL sub_FF879B30\n" // original
213	"STMFD SP!, {R4-R11,LR}\n" // + save registers to stack
214	"BL mbr_read\n" // + --->
215	"LDMFD SP!, {R4-R11,LR}\n" // + restore registers from stack
216
217	"MOV R4, R0\n"
218	"MOV R0, #3\n"
219	"BL sub_FF812904\n"
220	"CMP R4, #0\n"
221	"BNE loc_FF87A4A8\n"
222	"MOV R0, R7\n"
223	"STR R4, [SP,#4]\n"
224	"BL sub_FF88AD88\n"
225	"STR R0, [SP]\n"
226	"B loc_FF87A4A8\n"
227	"loc_FF87A48C:\n"
228	"MOV R3, #0\n"
229	"MOV R2, #0x40\n"
230	"STMEA SP, {R2,R3}\n"
231	"B loc_FF87A4A8\n"
232	"loc_FF87A49C:\n"
233	"LDR R0, =0xFF879010\n" // aMounter_c (default)
234	"MOV R1, #0x2B4\n"
235	"BL sub_FF813D70\n" // DebugAssert
236	"loc_FF87A4A8:\n"
237	"LDR R2, =0x2DA00\n"
238	"ADD R3, R8, R5\n"
239	"LDMFD SP, {R0,R12}\n"
240	"RSB R3, R5, R3,LSL#3\n"
241	"MOV R3, R3,LSL#2\n"
242	"ADD R1, R2, #0x48\n"
243	"ADD R2, R2, #0x44\n"
244	"STR R0, [R1,R3]\n"
245	"STR R12, [R2,R3]\n"
246	"MOV R0, #1\n"
247	"loc_FF879358:\n"
248	"ADD SP, SP, #8\n"
249	"LDMFD SP!, {R4-R8,PC}\n"
250	);
251	}

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source: trunk/platform/ixus900_sd900/sub/100c/mount.c @ 959

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