| /* |
| * 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 "qemu/osdep.h" |
| #include "qapi/error.h" |
| #include "qemu/host-utils.h" |
| #include "hw/irq.h" |
| #include "hw/display/tc6393xb.h" |
| #include "exec/memory.h" |
| #include "hw/block/flash.h" |
| #include "ui/console.h" |
| #include "ui/pixel_ops.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; |
| }; |
| |
| 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", __func__, line); |
| return; |
| } |
| |
| // FIXME: how does the chip reflect the GPIO input level change? |
| } |
| |
| static void tc6393xb_gpio_handler_update(TC6393xbState *s) |
| { |
| uint32_t level, diff; |
| int bit; |
| |
| level = s->gpio_level & s->gpio_dir; |
| level &= MAKE_64BIT_MASK(0, TC6393XB_GPIOS); |
| |
| 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); |
| } |
| |
| static void tc6393xb_draw_graphic(TC6393xbState *s, int full_update) |
| { |
| DisplaySurface *surface = qemu_console_surface(s->con); |
| int i; |
| uint16_t *data_buffer; |
| uint8_t *data_display; |
| |
| data_buffer = s->vram_ptr; |
| data_display = surface_data(surface); |
| for (i = 0; i < s->scr_height; i++) { |
| int j; |
| for (j = 0; j < s->scr_width; j++, data_display += 4, data_buffer++) { |
| uint16_t color = *data_buffer; |
| uint32_t dest_color = rgb_to_pixel32( |
| ((color & 0xf800) * 0x108) >> 11, |
| ((color & 0x7e0) * 0x41) >> 9, |
| ((color & 0x1f) * 0x21) >> 2 |
| ); |
| *(uint32_t *)data_display = dest_color; |
| } |
| } |
| dpy_gfx_update_full(s->con); |
| } |
| |
| 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_full(s->con); |
| } |
| |
| 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 = g_new0(TC6393xbState, 1); |
| 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); |
| 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; |
| } |
