Bug Summary

File:hw/arm/../tosa.c
Location:line 220, column 9
Description:Value stored to 'cpu_model' is never read

Annotated Source Code

1/* vim:set shiftwidth=4 ts=4 et: */
2/*
3 * PXA255 Sharp Zaurus SL-6000 PDA platform
4 *
5 * Copyright (c) 2008 Dmitry Baryshkov
6 *
7 * Code based on spitz platform by Andrzej Zaborowski <balrog@zabor.org>
8 * This code is licensed under the GNU GPL v2.
9 *
10 * Contributions after 2012-01-13 are licensed under the terms of the
11 * GNU GPL, version 2 or (at your option) any later version.
12 */
13
14#include "hw.h"
15#include "pxa.h"
16#include "arm-misc.h"
17#include "devices.h"
18#include "sharpsl.h"
19#include "pcmcia.h"
20#include "block.h"
21#include "boards.h"
22#include "i2c.h"
23#include "ssi.h"
24#include "blockdev.h"
25#include "sysbus.h"
26#include "exec-memory.h"
27
28#define TOSA_RAM0x04000000 0x04000000
29#define TOSA_ROM0x00800000 0x00800000
30
31#define TOSA_GPIO_USB_IN(5) (5)
32#define TOSA_GPIO_nSD_DETECT(9) (9)
33#define TOSA_GPIO_ON_RESET(19) (19)
34#define TOSA_GPIO_CF_IRQ(21) (21) /* CF slot0 Ready */
35#define TOSA_GPIO_CF_CD(13) (13)
36#define TOSA_GPIO_TC6393XB_INT(15) (15)
37#define TOSA_GPIO_JC_CF_IRQ(36) (36) /* CF slot1 Ready */
38
39#define TOSA_SCOOP_GPIO_BASE1 1
40#define TOSA_GPIO_IR_POWERDWN(1 + 2) (TOSA_SCOOP_GPIO_BASE1 + 2)
41#define TOSA_GPIO_SD_WP(1 + 3) (TOSA_SCOOP_GPIO_BASE1 + 3)
42#define TOSA_GPIO_PWR_ON(1 + 4) (TOSA_SCOOP_GPIO_BASE1 + 4)
43
44#define TOSA_SCOOP_JC_GPIO_BASE1 1
45#define TOSA_GPIO_BT_LED(1 + 0) (TOSA_SCOOP_JC_GPIO_BASE1 + 0)
46#define TOSA_GPIO_NOTE_LED(1 + 1) (TOSA_SCOOP_JC_GPIO_BASE1 + 1)
47#define TOSA_GPIO_CHRG_ERR_LED(1 + 2) (TOSA_SCOOP_JC_GPIO_BASE1 + 2)
48#define TOSA_GPIO_TC6393XB_L3V_ON(1 + 5) (TOSA_SCOOP_JC_GPIO_BASE1 + 5)
49#define TOSA_GPIO_WLAN_LED(1 + 7) (TOSA_SCOOP_JC_GPIO_BASE1 + 7)
50
51#define DAC_BASE0x4e 0x4e
52#define DAC_CH10 0
53#define DAC_CH21 1
54
55static void tosa_microdrive_attach(PXA2xxState *cpu)
56{
57 PCMCIACardState *md;
58 DriveInfo *dinfo;
59
60 dinfo = drive_get(IF_IDE, 0, 0);
61 if (!dinfo || dinfo->media_cd)
62 return;
63 md = dscm1xxxx_init(dinfo);
64 pxa2xx_pcmcia_attach(cpu->pcmcia[0], md);
65}
66
67static void tosa_out_switch(void *opaque, int line, int level)
68{
69 switch (line) {
70 case 0:
71 fprintf(stderrstderr, "blue LED %s.\n", level ? "on" : "off");
72 break;
73 case 1:
74 fprintf(stderrstderr, "green LED %s.\n", level ? "on" : "off");
75 break;
76 case 2:
77 fprintf(stderrstderr, "amber LED %s.\n", level ? "on" : "off");
78 break;
79 case 3:
80 fprintf(stderrstderr, "wlan LED %s.\n", level ? "on" : "off");
81 break;
82 default:
83 fprintf(stderrstderr, "Uhandled out event: %d = %d\n", line, level);
84 break;
85 }
86}
87
88
89static void tosa_gpio_setup(PXA2xxState *cpu,
90 DeviceState *scp0,
91 DeviceState *scp1,
92 TC6393xbState *tmio)
93{
94 qemu_irq *outsignals = qemu_allocate_irqs(tosa_out_switch, cpu, 4);
95 /* MMC/SD host */
96 pxa2xx_mmci_handlers(cpu->mmc,
97 qdev_get_gpio_in(scp0, TOSA_GPIO_SD_WP(1 + 3)),
98 qemu_irq_invert(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_nSD_DETECT(9))));
99
100 /* Handle reset */
101 qdev_connect_gpio_out(cpu->gpio, TOSA_GPIO_ON_RESET(19), cpu->reset);
102
103 /* PCMCIA signals: card's IRQ and Card-Detect */
104 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[0],
105 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_IRQ(21)),
106 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_CF_CD(13)));
107
108 pxa2xx_pcmcia_set_irq_cb(cpu->pcmcia[1],
109 qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_JC_CF_IRQ(36)),
110 NULL((void*)0));
111
112 qdev_connect_gpio_out(scp1, TOSA_GPIO_BT_LED(1 + 0), outsignals[0]);
113 qdev_connect_gpio_out(scp1, TOSA_GPIO_NOTE_LED(1 + 1), outsignals[1]);
114 qdev_connect_gpio_out(scp1, TOSA_GPIO_CHRG_ERR_LED(1 + 2), outsignals[2]);
115 qdev_connect_gpio_out(scp1, TOSA_GPIO_WLAN_LED(1 + 7), outsignals[3]);
116
117 qdev_connect_gpio_out(scp1, TOSA_GPIO_TC6393XB_L3V_ON(1 + 5), tc6393xb_l3v_get(tmio));
118
119 /* UDC Vbus */
120 qemu_irq_raise(qdev_get_gpio_in(cpu->gpio, TOSA_GPIO_USB_IN(5)));
121}
122
123static uint32_t tosa_ssp_tansfer(SSISlave *dev, uint32_t value)
124{
125 fprintf(stderrstderr, "TG: %d %02x\n", value >> 5, value & 0x1f);
126 return 0;
127}
128
129static int tosa_ssp_init(SSISlave *dev)
130{
131 /* Nothing to do. */
132 return 0;
133}
134
135typedef struct {
136 I2CSlave i2c;
137 int len;
138 char buf[3];
139} TosaDACState;
140
141static int tosa_dac_send(I2CSlave *i2c, uint8_t data)
142{
143 TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c)( __extension__ ( { char __attribute__((unused)) offset_must_be_zero
[ -__builtin_offsetof(TosaDACState, i2c)]; ({ const typeof(((
TosaDACState *) 0)->i2c) *__mptr = (i2c); (TosaDACState *)
((char *) __mptr - __builtin_offsetof(TosaDACState, i2c));})
;}));
144 s->buf[s->len] = data;
145 if (s->len ++ > 2) {
146#ifdef VERBOSE
147 fprintf(stderrstderr, "%s: message too long (%i bytes)\n", __FUNCTION__, s->len);
148#endif
149 return 1;
150 }
151
152 if (s->len == 2) {
153 fprintf(stderrstderr, "dac: channel %d value 0x%02x\n",
154 s->buf[0], s->buf[1]);
155 }
156
157 return 0;
158}
159
160static void tosa_dac_event(I2CSlave *i2c, enum i2c_event event)
161{
162 TosaDACState *s = FROM_I2C_SLAVE(TosaDACState, i2c)( __extension__ ( { char __attribute__((unused)) offset_must_be_zero
[ -__builtin_offsetof(TosaDACState, i2c)]; ({ const typeof(((
TosaDACState *) 0)->i2c) *__mptr = (i2c); (TosaDACState *)
((char *) __mptr - __builtin_offsetof(TosaDACState, i2c));})
;}));
163 s->len = 0;
164 switch (event) {
165 case I2C_START_SEND:
166 break;
167 case I2C_START_RECV:
168 printf("%s: recv not supported!!!\n", __FUNCTION__);
169 break;
170 case I2C_FINISH:
171#ifdef VERBOSE
172 if (s->len < 2)
173 printf("%s: message too short (%i bytes)\n", __FUNCTION__, s->len);
174 if (s->len > 2)
175 printf("%s: message too long\n", __FUNCTION__);
176#endif
177 break;
178 default:
179 break;
180 }
181}
182
183static int tosa_dac_recv(I2CSlave *s)
184{
185 printf("%s: recv not supported!!!\n", __FUNCTION__);
186 return -1;
187}
188
189static int tosa_dac_init(I2CSlave *i2c)
190{
191 /* Nothing to do. */
192 return 0;
193}
194
195static void tosa_tg_init(PXA2xxState *cpu)
196{
197 i2c_bus *bus = pxa2xx_i2c_bus(cpu->i2c[0]);
198 i2c_create_slave(bus, "tosa_dac", DAC_BASE0x4e);
199 ssi_create_slave(cpu->ssp[1], "tosa-ssp");
200}
201
202
203static struct arm_boot_info tosa_binfo = {
204 .loader_start = PXA2XX_SDRAM_BASE0xa0000000,
205 .ram_size = 0x04000000,
206};
207
208static void tosa_init(ram_addr_t ram_size,
209 const char *boot_device,
210 const char *kernel_filename, const char *kernel_cmdline,
211 const char *initrd_filename, const char *cpu_model)
212{
213 MemoryRegion *address_space_mem = get_system_memory();
214 MemoryRegion *rom = g_new(MemoryRegion, 1)((MemoryRegion *) g_malloc_n ((1), sizeof (MemoryRegion)));
215 PXA2xxState *mpu;
216 TC6393xbState *tmio;
217 DeviceState *scp0, *scp1;
218
219 if (!cpu_model)
220 cpu_model = "pxa255";
Value stored to 'cpu_model' is never read
221
222 mpu = pxa255_init(address_space_mem, tosa_binfo.ram_size);
223
224 memory_region_init_ram(rom, "tosa.rom", TOSA_ROM0x00800000);
225 vmstate_register_ram_global(rom);
226 memory_region_set_readonly(rom, true1);
227 memory_region_add_subregion(address_space_mem, 0, rom);
228
229 tmio = tc6393xb_init(address_space_mem, 0x10000000,
230 qdev_get_gpio_in(mpu->gpio, TOSA_GPIO_TC6393XB_INT(15)));
231
232 scp0 = sysbus_create_simple("scoop", 0x08800000, NULL((void*)0));
233 scp1 = sysbus_create_simple("scoop", 0x14800040, NULL((void*)0));
234
235 tosa_gpio_setup(mpu, scp0, scp1, tmio);
236
237 tosa_microdrive_attach(mpu);
238
239 tosa_tg_init(mpu);
240
241 tosa_binfo.kernel_filename = kernel_filename;
242 tosa_binfo.kernel_cmdline = kernel_cmdline;
243 tosa_binfo.initrd_filename = initrd_filename;
244 tosa_binfo.board_id = 0x208;
245 arm_load_kernel(mpu->cpu, &tosa_binfo);
246 sl_bootparam_write(SL_PXA_PARAM_BASE0xa0000a00);
247}
248
249static QEMUMachine tosapda_machine = {
250 .name = "tosa",
251 .desc = "Tosa PDA (PXA255)",
252 .init = tosa_init,
253};
254
255static void tosapda_machine_init(void)
256{
257 qemu_register_machine(&tosapda_machine);
258}
259
260machine_init(tosapda_machine_init)static void __attribute__((constructor)) do_qemu_init_tosapda_machine_init
(void) { register_module_init(tosapda_machine_init, MODULE_INIT_MACHINE
); };
261
262static void tosa_dac_class_init(ObjectClass *klass, void *data)
263{
264 I2CSlaveClass *k = I2C_SLAVE_CLASS(klass)((I2CSlaveClass *)object_class_dynamic_cast_assert(((ObjectClass
*)((klass))), ("i2c-slave")));
265
266 k->init = tosa_dac_init;
267 k->event = tosa_dac_event;
268 k->recv = tosa_dac_recv;
269 k->send = tosa_dac_send;
270}
271
272static TypeInfo tosa_dac_info = {
273 .name = "tosa_dac",
274 .parent = TYPE_I2C_SLAVE"i2c-slave",
275 .instance_size = sizeof(TosaDACState),
276 .class_init = tosa_dac_class_init,
277};
278
279static void tosa_ssp_class_init(ObjectClass *klass, void *data)
280{
281 SSISlaveClass *k = SSI_SLAVE_CLASS(klass)((SSISlaveClass *)object_class_dynamic_cast_assert(((ObjectClass
*)((klass))), ("ssi-slave")));
282
283 k->init = tosa_ssp_init;
284 k->transfer = tosa_ssp_tansfer;
285}
286
287static TypeInfo tosa_ssp_info = {
288 .name = "tosa-ssp",
289 .parent = TYPE_SSI_SLAVE"ssi-slave",
290 .instance_size = sizeof(SSISlave),
291 .class_init = tosa_ssp_class_init,
292};
293
294static void tosa_register_types(void)
295{
296 type_register_static(&tosa_dac_info);
297 type_register_static(&tosa_ssp_info);
298}
299
300type_init(tosa_register_types)static void __attribute__((constructor)) do_qemu_init_tosa_register_types
(void) { register_module_init(tosa_register_types, MODULE_INIT_QOM
); }