diff options
Diffstat (limited to 'src/hw/display/tc6393xb.c')
| -rw-r--r-- | src/hw/display/tc6393xb.c | 596 |
1 files changed, 596 insertions, 0 deletions
diff --git a/src/hw/display/tc6393xb.c b/src/hw/display/tc6393xb.c new file mode 100644 index 0000000..516af1a --- /dev/null +++ b/src/hw/display/tc6393xb.c @@ -0,0 +1,596 @@ +/* + * Toshiba TC6393XB I/O Controller. + * Found in Sharp Zaurus SL-6000 (tosa) or some + * Toshiba e-Series PDAs. + * + * Most features are currently unsupported!!! + * + * This code is licensed under the GNU GPL v2. + * + * Contributions after 2012-01-13 are licensed under the terms of the + * GNU GPL, version 2 or (at your option) any later version. + */ +#include "hw/hw.h" +#include "hw/devices.h" +#include "hw/block/flash.h" +#include "ui/console.h" +#include "ui/pixel_ops.h" +#include "sysemu/block-backend.h" +#include "sysemu/blockdev.h" + +#define IRQ_TC6393_NAND 0 +#define IRQ_TC6393_MMC 1 +#define IRQ_TC6393_OHCI 2 +#define IRQ_TC6393_SERIAL 3 +#define IRQ_TC6393_FB 4 + +#define TC6393XB_NR_IRQS 8 + +#define TC6393XB_GPIOS 16 + +#define SCR_REVID 0x08 /* b Revision ID */ +#define SCR_ISR 0x50 /* b Interrupt Status */ +#define SCR_IMR 0x52 /* b Interrupt Mask */ +#define SCR_IRR 0x54 /* b Interrupt Routing */ +#define SCR_GPER 0x60 /* w GP Enable */ +#define SCR_GPI_SR(i) (0x64 + (i)) /* b3 GPI Status */ +#define SCR_GPI_IMR(i) (0x68 + (i)) /* b3 GPI INT Mask */ +#define SCR_GPI_EDER(i) (0x6c + (i)) /* b3 GPI Edge Detect Enable */ +#define SCR_GPI_LIR(i) (0x70 + (i)) /* b3 GPI Level Invert */ +#define SCR_GPO_DSR(i) (0x78 + (i)) /* b3 GPO Data Set */ +#define SCR_GPO_DOECR(i) (0x7c + (i)) /* b3 GPO Data OE Control */ +#define SCR_GP_IARCR(i) (0x80 + (i)) /* b3 GP Internal Active Register Control */ +#define SCR_GP_IARLCR(i) (0x84 + (i)) /* b3 GP INTERNAL Active Register Level Control */ +#define SCR_GPI_BCR(i) (0x88 + (i)) /* b3 GPI Buffer Control */ +#define SCR_GPA_IARCR 0x8c /* w GPa Internal Active Register Control */ +#define SCR_GPA_IARLCR 0x90 /* w GPa Internal Active Register Level Control */ +#define SCR_GPA_BCR 0x94 /* w GPa Buffer Control */ +#define SCR_CCR 0x98 /* w Clock Control */ +#define SCR_PLL2CR 0x9a /* w PLL2 Control */ +#define SCR_PLL1CR 0x9c /* l PLL1 Control */ +#define SCR_DIARCR 0xa0 /* b Device Internal Active Register Control */ +#define SCR_DBOCR 0xa1 /* b Device Buffer Off Control */ +#define SCR_FER 0xe0 /* b Function Enable */ +#define SCR_MCR 0xe4 /* w Mode Control */ +#define SCR_CONFIG 0xfc /* b Configuration Control */ +#define SCR_DEBUG 0xff /* b Debug */ + +#define NAND_CFG_COMMAND 0x04 /* w Command */ +#define NAND_CFG_BASE 0x10 /* l Control Base Address */ +#define NAND_CFG_INTP 0x3d /* b Interrupt Pin */ +#define NAND_CFG_INTE 0x48 /* b Int Enable */ +#define NAND_CFG_EC 0x4a /* b Event Control */ +#define NAND_CFG_ICC 0x4c /* b Internal Clock Control */ +#define NAND_CFG_ECCC 0x5b /* b ECC Control */ +#define NAND_CFG_NFTC 0x60 /* b NAND Flash Transaction Control */ +#define NAND_CFG_NFM 0x61 /* b NAND Flash Monitor */ +#define NAND_CFG_NFPSC 0x62 /* b NAND Flash Power Supply Control */ +#define NAND_CFG_NFDC 0x63 /* b NAND Flash Detect Control */ + +#define NAND_DATA 0x00 /* l Data */ +#define NAND_MODE 0x04 /* b Mode */ +#define NAND_STATUS 0x05 /* b Status */ +#define NAND_ISR 0x06 /* b Interrupt Status */ +#define NAND_IMR 0x07 /* b Interrupt Mask */ + +#define NAND_MODE_WP 0x80 +#define NAND_MODE_CE 0x10 +#define NAND_MODE_ALE 0x02 +#define NAND_MODE_CLE 0x01 +#define NAND_MODE_ECC_MASK 0x60 +#define NAND_MODE_ECC_EN 0x20 +#define NAND_MODE_ECC_READ 0x40 +#define NAND_MODE_ECC_RST 0x60 + +struct TC6393xbState { + MemoryRegion iomem; + qemu_irq irq; + qemu_irq *sub_irqs; + struct { + uint8_t ISR; + uint8_t IMR; + uint8_t IRR; + uint16_t GPER; + uint8_t GPI_SR[3]; + uint8_t GPI_IMR[3]; + uint8_t GPI_EDER[3]; + uint8_t GPI_LIR[3]; + uint8_t GP_IARCR[3]; + uint8_t GP_IARLCR[3]; + uint8_t GPI_BCR[3]; + uint16_t GPA_IARCR; + uint16_t GPA_IARLCR; + uint16_t CCR; + uint16_t PLL2CR; + uint32_t PLL1CR; + uint8_t DIARCR; + uint8_t DBOCR; + uint8_t FER; + uint16_t MCR; + uint8_t CONFIG; + uint8_t DEBUG; + } scr; + uint32_t gpio_dir; + uint32_t gpio_level; + uint32_t prev_level; + qemu_irq handler[TC6393XB_GPIOS]; + qemu_irq *gpio_in; + + struct { + uint8_t mode; + uint8_t isr; + uint8_t imr; + } nand; + int nand_enable; + uint32_t nand_phys; + DeviceState *flash; + ECCState ecc; + + QemuConsole *con; + MemoryRegion vram; + uint16_t *vram_ptr; + uint32_t scr_width, scr_height; /* in pixels */ + qemu_irq l3v; + unsigned blank : 1, + blanked : 1; +}; + +qemu_irq *tc6393xb_gpio_in_get(TC6393xbState *s) +{ + return s->gpio_in; +} + +static void tc6393xb_gpio_set(void *opaque, int line, int level) +{ +// TC6393xbState *s = opaque; + + if (line > TC6393XB_GPIOS) { + printf("%s: No GPIO pin %i\n", __FUNCTION__, line); + return; + } + + // FIXME: how does the chip reflect the GPIO input level change? +} + +void tc6393xb_gpio_out_set(TC6393xbState *s, int line, + qemu_irq handler) +{ + if (line >= TC6393XB_GPIOS) { + fprintf(stderr, "TC6393xb: no GPIO pin %d\n", line); + return; + } + + s->handler[line] = handler; +} + +static void tc6393xb_gpio_handler_update(TC6393xbState *s) +{ + uint32_t level, diff; + int bit; + + level = s->gpio_level & s->gpio_dir; + + for (diff = s->prev_level ^ level; diff; diff ^= 1 << bit) { + bit = ctz32(diff); + qemu_set_irq(s->handler[bit], (level >> bit) & 1); + } + + s->prev_level = level; +} + +qemu_irq tc6393xb_l3v_get(TC6393xbState *s) +{ + return s->l3v; +} + +static void tc6393xb_l3v(void *opaque, int line, int level) +{ + TC6393xbState *s = opaque; + s->blank = !level; + fprintf(stderr, "L3V: %d\n", level); +} + +static void tc6393xb_sub_irq(void *opaque, int line, int level) { + TC6393xbState *s = opaque; + uint8_t isr = s->scr.ISR; + if (level) + isr |= 1 << line; + else + isr &= ~(1 << line); + s->scr.ISR = isr; + qemu_set_irq(s->irq, isr & s->scr.IMR); +} + +#define SCR_REG_B(N) \ + case SCR_ ##N: return s->scr.N +#define SCR_REG_W(N) \ + case SCR_ ##N: return s->scr.N; \ + case SCR_ ##N + 1: return s->scr.N >> 8; +#define SCR_REG_L(N) \ + case SCR_ ##N: return s->scr.N; \ + case SCR_ ##N + 1: return s->scr.N >> 8; \ + case SCR_ ##N + 2: return s->scr.N >> 16; \ + case SCR_ ##N + 3: return s->scr.N >> 24; +#define SCR_REG_A(N) \ + case SCR_ ##N(0): return s->scr.N[0]; \ + case SCR_ ##N(1): return s->scr.N[1]; \ + case SCR_ ##N(2): return s->scr.N[2] + +static uint32_t tc6393xb_scr_readb(TC6393xbState *s, hwaddr addr) +{ + switch (addr) { + case SCR_REVID: + return 3; + case SCR_REVID+1: + return 0; + SCR_REG_B(ISR); + SCR_REG_B(IMR); + SCR_REG_B(IRR); + SCR_REG_W(GPER); + SCR_REG_A(GPI_SR); + SCR_REG_A(GPI_IMR); + SCR_REG_A(GPI_EDER); + SCR_REG_A(GPI_LIR); + case SCR_GPO_DSR(0): + case SCR_GPO_DSR(1): + case SCR_GPO_DSR(2): + return (s->gpio_level >> ((addr - SCR_GPO_DSR(0)) * 8)) & 0xff; + case SCR_GPO_DOECR(0): + case SCR_GPO_DOECR(1): + case SCR_GPO_DOECR(2): + return (s->gpio_dir >> ((addr - SCR_GPO_DOECR(0)) * 8)) & 0xff; + SCR_REG_A(GP_IARCR); + SCR_REG_A(GP_IARLCR); + SCR_REG_A(GPI_BCR); + SCR_REG_W(GPA_IARCR); + SCR_REG_W(GPA_IARLCR); + SCR_REG_W(CCR); + SCR_REG_W(PLL2CR); + SCR_REG_L(PLL1CR); + SCR_REG_B(DIARCR); + SCR_REG_B(DBOCR); + SCR_REG_B(FER); + SCR_REG_W(MCR); + SCR_REG_B(CONFIG); + SCR_REG_B(DEBUG); + } + fprintf(stderr, "tc6393xb_scr: unhandled read at %08x\n", (uint32_t) addr); + return 0; +} +#undef SCR_REG_B +#undef SCR_REG_W +#undef SCR_REG_L +#undef SCR_REG_A + +#define SCR_REG_B(N) \ + case SCR_ ##N: s->scr.N = value; return; +#define SCR_REG_W(N) \ + case SCR_ ##N: s->scr.N = (s->scr.N & ~0xff) | (value & 0xff); return; \ + case SCR_ ##N + 1: s->scr.N = (s->scr.N & 0xff) | (value << 8); return +#define SCR_REG_L(N) \ + case SCR_ ##N: s->scr.N = (s->scr.N & ~0xff) | (value & 0xff); return; \ + case SCR_ ##N + 1: s->scr.N = (s->scr.N & ~(0xff << 8)) | (value & (0xff << 8)); return; \ + case SCR_ ##N + 2: s->scr.N = (s->scr.N & ~(0xff << 16)) | (value & (0xff << 16)); return; \ + case SCR_ ##N + 3: s->scr.N = (s->scr.N & ~(0xff << 24)) | (value & (0xff << 24)); return; +#define SCR_REG_A(N) \ + case SCR_ ##N(0): s->scr.N[0] = value; return; \ + case SCR_ ##N(1): s->scr.N[1] = value; return; \ + case SCR_ ##N(2): s->scr.N[2] = value; return + +static void tc6393xb_scr_writeb(TC6393xbState *s, hwaddr addr, uint32_t value) +{ + switch (addr) { + SCR_REG_B(ISR); + SCR_REG_B(IMR); + SCR_REG_B(IRR); + SCR_REG_W(GPER); + SCR_REG_A(GPI_SR); + SCR_REG_A(GPI_IMR); + SCR_REG_A(GPI_EDER); + SCR_REG_A(GPI_LIR); + case SCR_GPO_DSR(0): + case SCR_GPO_DSR(1): + case SCR_GPO_DSR(2): + s->gpio_level = (s->gpio_level & ~(0xff << ((addr - SCR_GPO_DSR(0))*8))) | ((value & 0xff) << ((addr - SCR_GPO_DSR(0))*8)); + tc6393xb_gpio_handler_update(s); + return; + case SCR_GPO_DOECR(0): + case SCR_GPO_DOECR(1): + case SCR_GPO_DOECR(2): + s->gpio_dir = (s->gpio_dir & ~(0xff << ((addr - SCR_GPO_DOECR(0))*8))) | ((value & 0xff) << ((addr - SCR_GPO_DOECR(0))*8)); + tc6393xb_gpio_handler_update(s); + return; + SCR_REG_A(GP_IARCR); + SCR_REG_A(GP_IARLCR); + SCR_REG_A(GPI_BCR); + SCR_REG_W(GPA_IARCR); + SCR_REG_W(GPA_IARLCR); + SCR_REG_W(CCR); + SCR_REG_W(PLL2CR); + SCR_REG_L(PLL1CR); + SCR_REG_B(DIARCR); + SCR_REG_B(DBOCR); + SCR_REG_B(FER); + SCR_REG_W(MCR); + SCR_REG_B(CONFIG); + SCR_REG_B(DEBUG); + } + fprintf(stderr, "tc6393xb_scr: unhandled write at %08x: %02x\n", + (uint32_t) addr, value & 0xff); +} +#undef SCR_REG_B +#undef SCR_REG_W +#undef SCR_REG_L +#undef SCR_REG_A + +static void tc6393xb_nand_irq(TC6393xbState *s) { + qemu_set_irq(s->sub_irqs[IRQ_TC6393_NAND], + (s->nand.imr & 0x80) && (s->nand.imr & s->nand.isr)); +} + +static uint32_t tc6393xb_nand_cfg_readb(TC6393xbState *s, hwaddr addr) { + switch (addr) { + case NAND_CFG_COMMAND: + return s->nand_enable ? 2 : 0; + case NAND_CFG_BASE: + case NAND_CFG_BASE + 1: + case NAND_CFG_BASE + 2: + case NAND_CFG_BASE + 3: + return s->nand_phys >> (addr - NAND_CFG_BASE); + } + fprintf(stderr, "tc6393xb_nand_cfg: unhandled read at %08x\n", (uint32_t) addr); + return 0; +} +static void tc6393xb_nand_cfg_writeb(TC6393xbState *s, hwaddr addr, uint32_t value) { + switch (addr) { + case NAND_CFG_COMMAND: + s->nand_enable = (value & 0x2); + return; + case NAND_CFG_BASE: + case NAND_CFG_BASE + 1: + case NAND_CFG_BASE + 2: + case NAND_CFG_BASE + 3: + s->nand_phys &= ~(0xff << ((addr - NAND_CFG_BASE) * 8)); + s->nand_phys |= (value & 0xff) << ((addr - NAND_CFG_BASE) * 8); + return; + } + fprintf(stderr, "tc6393xb_nand_cfg: unhandled write at %08x: %02x\n", + (uint32_t) addr, value & 0xff); +} + +static uint32_t tc6393xb_nand_readb(TC6393xbState *s, hwaddr addr) { + switch (addr) { + case NAND_DATA + 0: + case NAND_DATA + 1: + case NAND_DATA + 2: + case NAND_DATA + 3: + return nand_getio(s->flash); + case NAND_MODE: + return s->nand.mode; + case NAND_STATUS: + return 0x14; + case NAND_ISR: + return s->nand.isr; + case NAND_IMR: + return s->nand.imr; + } + fprintf(stderr, "tc6393xb_nand: unhandled read at %08x\n", (uint32_t) addr); + return 0; +} +static void tc6393xb_nand_writeb(TC6393xbState *s, hwaddr addr, uint32_t value) { +// fprintf(stderr, "tc6393xb_nand: write at %08x: %02x\n", +// (uint32_t) addr, value & 0xff); + switch (addr) { + case NAND_DATA + 0: + case NAND_DATA + 1: + case NAND_DATA + 2: + case NAND_DATA + 3: + nand_setio(s->flash, value); + s->nand.isr |= 1; + tc6393xb_nand_irq(s); + return; + case NAND_MODE: + s->nand.mode = value; + nand_setpins(s->flash, + value & NAND_MODE_CLE, + value & NAND_MODE_ALE, + !(value & NAND_MODE_CE), + value & NAND_MODE_WP, + 0); // FIXME: gnd + switch (value & NAND_MODE_ECC_MASK) { + case NAND_MODE_ECC_RST: + ecc_reset(&s->ecc); + break; + case NAND_MODE_ECC_READ: + // FIXME + break; + case NAND_MODE_ECC_EN: + ecc_reset(&s->ecc); + } + return; + case NAND_ISR: + s->nand.isr = value; + tc6393xb_nand_irq(s); + return; + case NAND_IMR: + s->nand.imr = value; + tc6393xb_nand_irq(s); + return; + } + fprintf(stderr, "tc6393xb_nand: unhandled write at %08x: %02x\n", + (uint32_t) addr, value & 0xff); +} + +#define BITS 8 +#include "tc6393xb_template.h" +#define BITS 15 +#include "tc6393xb_template.h" +#define BITS 16 +#include "tc6393xb_template.h" +#define BITS 24 +#include "tc6393xb_template.h" +#define BITS 32 +#include "tc6393xb_template.h" + +static void tc6393xb_draw_graphic(TC6393xbState *s, int full_update) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + + switch (surface_bits_per_pixel(surface)) { + case 8: + tc6393xb_draw_graphic8(s); + break; + case 15: + tc6393xb_draw_graphic15(s); + break; + case 16: + tc6393xb_draw_graphic16(s); + break; + case 24: + tc6393xb_draw_graphic24(s); + break; + case 32: + tc6393xb_draw_graphic32(s); + break; + default: + printf("tc6393xb: unknown depth %d\n", + surface_bits_per_pixel(surface)); + return; + } + + dpy_gfx_update(s->con, 0, 0, s->scr_width, s->scr_height); +} + +static void tc6393xb_draw_blank(TC6393xbState *s, int full_update) +{ + DisplaySurface *surface = qemu_console_surface(s->con); + int i, w; + uint8_t *d; + + if (!full_update) + return; + + w = s->scr_width * surface_bytes_per_pixel(surface); + d = surface_data(surface); + for(i = 0; i < s->scr_height; i++) { + memset(d, 0, w); + d += surface_stride(surface); + } + + dpy_gfx_update(s->con, 0, 0, s->scr_width, s->scr_height); +} + +static void tc6393xb_update_display(void *opaque) +{ + TC6393xbState *s = opaque; + DisplaySurface *surface = qemu_console_surface(s->con); + int full_update; + + if (s->scr_width == 0 || s->scr_height == 0) + return; + + full_update = 0; + if (s->blanked != s->blank) { + s->blanked = s->blank; + full_update = 1; + } + if (s->scr_width != surface_width(surface) || + s->scr_height != surface_height(surface)) { + qemu_console_resize(s->con, s->scr_width, s->scr_height); + full_update = 1; + } + if (s->blanked) + tc6393xb_draw_blank(s, full_update); + else + tc6393xb_draw_graphic(s, full_update); +} + + +static uint64_t tc6393xb_readb(void *opaque, hwaddr addr, + unsigned size) +{ + TC6393xbState *s = opaque; + + switch (addr >> 8) { + case 0: + return tc6393xb_scr_readb(s, addr & 0xff); + case 1: + return tc6393xb_nand_cfg_readb(s, addr & 0xff); + }; + + if ((addr &~0xff) == s->nand_phys && s->nand_enable) { +// return tc6393xb_nand_readb(s, addr & 0xff); + uint8_t d = tc6393xb_nand_readb(s, addr & 0xff); +// fprintf(stderr, "tc6393xb_nand: read at %08x: %02hhx\n", (uint32_t) addr, d); + return d; + } + +// fprintf(stderr, "tc6393xb: unhandled read at %08x\n", (uint32_t) addr); + return 0; +} + +static void tc6393xb_writeb(void *opaque, hwaddr addr, + uint64_t value, unsigned size) { + TC6393xbState *s = opaque; + + switch (addr >> 8) { + case 0: + tc6393xb_scr_writeb(s, addr & 0xff, value); + return; + case 1: + tc6393xb_nand_cfg_writeb(s, addr & 0xff, value); + return; + }; + + if ((addr &~0xff) == s->nand_phys && s->nand_enable) + tc6393xb_nand_writeb(s, addr & 0xff, value); + else + fprintf(stderr, "tc6393xb: unhandled write at %08x: %02x\n", + (uint32_t) addr, (int)value & 0xff); +} + +static const GraphicHwOps tc6393xb_gfx_ops = { + .gfx_update = tc6393xb_update_display, +}; + +TC6393xbState *tc6393xb_init(MemoryRegion *sysmem, uint32_t base, qemu_irq irq) +{ + TC6393xbState *s; + DriveInfo *nand; + static const MemoryRegionOps tc6393xb_ops = { + .read = tc6393xb_readb, + .write = tc6393xb_writeb, + .endianness = DEVICE_NATIVE_ENDIAN, + .impl = { + .min_access_size = 1, + .max_access_size = 1, + }, + }; + + s = (TC6393xbState *) g_malloc0(sizeof(TC6393xbState)); + s->irq = irq; + s->gpio_in = qemu_allocate_irqs(tc6393xb_gpio_set, s, TC6393XB_GPIOS); + + s->l3v = qemu_allocate_irq(tc6393xb_l3v, s, 0); + s->blanked = 1; + + s->sub_irqs = qemu_allocate_irqs(tc6393xb_sub_irq, s, TC6393XB_NR_IRQS); + + nand = drive_get(IF_MTD, 0, 0); + s->flash = nand_init(nand ? blk_by_legacy_dinfo(nand) : NULL, + NAND_MFR_TOSHIBA, 0x76); + + memory_region_init_io(&s->iomem, NULL, &tc6393xb_ops, s, "tc6393xb", 0x10000); + memory_region_add_subregion(sysmem, base, &s->iomem); + + memory_region_init_ram(&s->vram, NULL, "tc6393xb.vram", 0x100000, + &error_fatal); + vmstate_register_ram_global(&s->vram); + s->vram_ptr = memory_region_get_ram_ptr(&s->vram); + memory_region_add_subregion(sysmem, base + 0x100000, &s->vram); + s->scr_width = 480; + s->scr_height = 640; + s->con = graphic_console_init(NULL, 0, &tc6393xb_gfx_ops, s); + + return s; +} |
