From 3c42a449107bf76c59b8e0b6a30d070e9696e49c Mon Sep 17 00:00:00 2001 From: Eric Miao Date: Wed, 30 Apr 2008 00:52:26 -0700 Subject: [PATCH] pxafb: preliminary smart panel interface support Signed-off-by: Daniel Mack Signed-off-by: Eric Miao Cc: "Antonino A. Daplas" Cc: Russell King Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- drivers/video/Kconfig | 5 + drivers/video/pxafb.c | 307 ++++++++++++++++++++++++---- drivers/video/pxafb.h | 12 ++ include/asm-arm/arch-pxa/pxafb.h | 26 ++- include/asm-arm/arch-pxa/regs-lcd.h | 34 ++- 5 files changed, 337 insertions(+), 47 deletions(-) diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig index a576dc261732..20a2bbd14ed7 100644 --- a/drivers/video/Kconfig +++ b/drivers/video/Kconfig @@ -1774,6 +1774,11 @@ config FB_PXA If unsure, say N. +config FB_PXA_SMARTPANEL + bool "PXA Smartpanel LCD support" + default y + depends on FB_PXA + config FB_PXA_PARAMETERS bool "PXA LCD command line parameters" default n diff --git a/drivers/video/pxafb.c b/drivers/video/pxafb.c index d11ea78a06d5..a4d656497e9d 100644 --- a/drivers/video/pxafb.c +++ b/drivers/video/pxafb.c @@ -40,6 +40,8 @@ #include #include #include +#include +#include #include #include @@ -455,7 +457,7 @@ static int pxafb_mmap(struct fb_info *info, unsigned long off = vma->vm_pgoff << PAGE_SHIFT; if (off < info->fix.smem_len) { - vma->vm_pgoff += 1; + vma->vm_pgoff += fbi->video_offset / PAGE_SIZE; return dma_mmap_writecombine(fbi->dev, vma, fbi->map_cpu, fbi->map_dma, fbi->map_size); } @@ -594,6 +596,183 @@ static int setup_frame_dma(struct pxafb_info *fbi, int dma, int pal, return 0; } +#ifdef CONFIG_FB_PXA_SMARTPANEL +static int setup_smart_dma(struct pxafb_info *fbi) +{ + struct pxafb_dma_descriptor *dma_desc; + unsigned long dma_desc_off, cmd_buff_off; + + dma_desc = &fbi->dma_buff->dma_desc[DMA_CMD]; + dma_desc_off = offsetof(struct pxafb_dma_buff, dma_desc[DMA_CMD]); + cmd_buff_off = offsetof(struct pxafb_dma_buff, cmd_buff); + + dma_desc->fdadr = fbi->dma_buff_phys + dma_desc_off; + dma_desc->fsadr = fbi->dma_buff_phys + cmd_buff_off; + dma_desc->fidr = 0; + dma_desc->ldcmd = fbi->n_smart_cmds * sizeof(uint16_t); + + fbi->fdadr[DMA_CMD] = dma_desc->fdadr; + return 0; +} + +int pxafb_smart_flush(struct fb_info *info) +{ + struct pxafb_info *fbi = container_of(info, struct pxafb_info, fb); + uint32_t prsr; + int ret = 0; + + /* disable controller until all registers are set up */ + lcd_writel(fbi, LCCR0, fbi->reg_lccr0 & ~LCCR0_ENB); + + /* 1. make it an even number of commands to align on 32-bit boundary + * 2. add the interrupt command to the end of the chain so we can + * keep track of the end of the transfer + */ + + while (fbi->n_smart_cmds & 1) + fbi->smart_cmds[fbi->n_smart_cmds++] = SMART_CMD_NOOP; + + fbi->smart_cmds[fbi->n_smart_cmds++] = SMART_CMD_INTERRUPT; + fbi->smart_cmds[fbi->n_smart_cmds++] = SMART_CMD_WAIT_FOR_VSYNC; + setup_smart_dma(fbi); + + /* continue to execute next command */ + prsr = lcd_readl(fbi, PRSR) | PRSR_ST_OK | PRSR_CON_NT; + lcd_writel(fbi, PRSR, prsr); + + /* stop the processor in case it executed "wait for sync" cmd */ + lcd_writel(fbi, CMDCR, 0x0001); + + /* don't send interrupts for fifo underruns on channel 6 */ + lcd_writel(fbi, LCCR5, LCCR5_IUM(6)); + + lcd_writel(fbi, LCCR1, fbi->reg_lccr1); + lcd_writel(fbi, LCCR2, fbi->reg_lccr2); + lcd_writel(fbi, LCCR3, fbi->reg_lccr3); + lcd_writel(fbi, FDADR0, fbi->fdadr[0]); + lcd_writel(fbi, FDADR6, fbi->fdadr[6]); + + /* begin sending */ + lcd_writel(fbi, LCCR0, fbi->reg_lccr0 | LCCR0_ENB); + + if (wait_for_completion_timeout(&fbi->command_done, HZ/2) == 0) { + pr_warning("%s: timeout waiting for command done\n", + __func__); + ret = -ETIMEDOUT; + } + + /* quick disable */ + prsr = lcd_readl(fbi, PRSR) & ~(PRSR_ST_OK | PRSR_CON_NT); + lcd_writel(fbi, PRSR, prsr); + lcd_writel(fbi, LCCR0, fbi->reg_lccr0 & ~LCCR0_ENB); + lcd_writel(fbi, FDADR6, 0); + fbi->n_smart_cmds = 0; + return ret; +} + +int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int n_cmds) +{ + int i; + struct pxafb_info *fbi = container_of(info, struct pxafb_info, fb); + + /* leave 2 commands for INTERRUPT and WAIT_FOR_SYNC */ + for (i = 0; i < n_cmds; i++) { + if (fbi->n_smart_cmds == CMD_BUFF_SIZE - 8) + pxafb_smart_flush(info); + + fbi->smart_cmds[fbi->n_smart_cmds++] = *cmds++; + } + + return 0; +} + +static unsigned int __smart_timing(unsigned time_ns, unsigned long lcd_clk) +{ + unsigned int t = (time_ns * (lcd_clk / 1000000) / 1000); + return (t == 0) ? 1 : t; +} + +static void setup_smart_timing(struct pxafb_info *fbi, + struct fb_var_screeninfo *var) +{ + struct pxafb_mach_info *inf = fbi->dev->platform_data; + struct pxafb_mode_info *mode = &inf->modes[0]; + unsigned long lclk = clk_get_rate(fbi->clk); + unsigned t1, t2, t3, t4; + + t1 = max(mode->a0csrd_set_hld, mode->a0cswr_set_hld); + t2 = max(mode->rd_pulse_width, mode->wr_pulse_width); + t3 = mode->op_hold_time; + t4 = mode->cmd_inh_time; + + fbi->reg_lccr1 = + LCCR1_DisWdth(var->xres) | + LCCR1_BegLnDel(__smart_timing(t1, lclk)) | + LCCR1_EndLnDel(__smart_timing(t2, lclk)) | + LCCR1_HorSnchWdth(__smart_timing(t3, lclk)); + + fbi->reg_lccr2 = LCCR2_DisHght(var->yres); + fbi->reg_lccr3 = LCCR3_PixClkDiv(__smart_timing(t4, lclk)); + + /* FIXME: make this configurable */ + fbi->reg_cmdcr = 1; +} + +static int pxafb_smart_thread(void *arg) +{ + struct pxafb_info *fbi = (struct pxafb_info *) arg; + struct pxafb_mach_info *inf = fbi->dev->platform_data; + + if (!fbi || !inf->smart_update) { + pr_err("%s: not properly initialized, thread terminated\n", + __func__); + return -EINVAL; + } + + pr_debug("%s(): task starting\n", __func__); + + set_freezable(); + while (!kthread_should_stop()) { + + if (try_to_freeze()) + continue; + + if (fbi->state == C_ENABLE) { + inf->smart_update(&fbi->fb); + complete(&fbi->refresh_done); + } + + set_current_state(TASK_INTERRUPTIBLE); + schedule_timeout(30 * HZ / 1000); + } + + pr_debug("%s(): task ending\n", __func__); + return 0; +} + +static int pxafb_smart_init(struct pxafb_info *fbi) +{ + fbi->smart_thread = kthread_run(pxafb_smart_thread, fbi, + "lcd_refresh"); + if (IS_ERR(fbi->smart_thread)) { + printk(KERN_ERR "%s: unable to create kernel thread\n", + __func__); + return PTR_ERR(fbi->smart_thread); + } + return 0; +} +#else +int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int n_cmds) +{ + return 0; +} + +int pxafb_smart_flush(struct fb_info *info) +{ + return 0; +} +#endif /* CONFIG_FB_SMART_PANEL */ + static void setup_parallel_timing(struct pxafb_info *fbi, struct fb_var_screeninfo *var) { @@ -643,47 +822,55 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, size_t nbytes; #if DEBUG_VAR - if (var->xres < 16 || var->xres > 1024) - printk(KERN_ERR "%s: invalid xres %d\n", - fbi->fb.fix.id, var->xres); - switch (var->bits_per_pixel) { - case 1: - case 2: - case 4: - case 8: - case 16: - break; - default: - printk(KERN_ERR "%s: invalid bit depth %d\n", - fbi->fb.fix.id, var->bits_per_pixel); - break; + if (!(fbi->lccr0 & LCCR0_LCDT)) { + if (var->xres < 16 || var->xres > 1024) + printk(KERN_ERR "%s: invalid xres %d\n", + fbi->fb.fix.id, var->xres); + switch (var->bits_per_pixel) { + case 1: + case 2: + case 4: + case 8: + case 16: + break; + default: + printk(KERN_ERR "%s: invalid bit depth %d\n", + fbi->fb.fix.id, var->bits_per_pixel); + break; + } + + if (var->hsync_len < 1 || var->hsync_len > 64) + printk(KERN_ERR "%s: invalid hsync_len %d\n", + fbi->fb.fix.id, var->hsync_len); + if (var->left_margin < 1 || var->left_margin > 255) + printk(KERN_ERR "%s: invalid left_margin %d\n", + fbi->fb.fix.id, var->left_margin); + if (var->right_margin < 1 || var->right_margin > 255) + printk(KERN_ERR "%s: invalid right_margin %d\n", + fbi->fb.fix.id, var->right_margin); + if (var->yres < 1 || var->yres > 1024) + printk(KERN_ERR "%s: invalid yres %d\n", + fbi->fb.fix.id, var->yres); + if (var->vsync_len < 1 || var->vsync_len > 64) + printk(KERN_ERR "%s: invalid vsync_len %d\n", + fbi->fb.fix.id, var->vsync_len); + if (var->upper_margin < 0 || var->upper_margin > 255) + printk(KERN_ERR "%s: invalid upper_margin %d\n", + fbi->fb.fix.id, var->upper_margin); + if (var->lower_margin < 0 || var->lower_margin > 255) + printk(KERN_ERR "%s: invalid lower_margin %d\n", + fbi->fb.fix.id, var->lower_margin); } - if (var->hsync_len < 1 || var->hsync_len > 64) - printk(KERN_ERR "%s: invalid hsync_len %d\n", - fbi->fb.fix.id, var->hsync_len); - if (var->left_margin < 1 || var->left_margin > 255) - printk(KERN_ERR "%s: invalid left_margin %d\n", - fbi->fb.fix.id, var->left_margin); - if (var->right_margin < 1 || var->right_margin > 255) - printk(KERN_ERR "%s: invalid right_margin %d\n", - fbi->fb.fix.id, var->right_margin); - if (var->yres < 1 || var->yres > 1024) - printk(KERN_ERR "%s: invalid yres %d\n", - fbi->fb.fix.id, var->yres); - if (var->vsync_len < 1 || var->vsync_len > 64) - printk(KERN_ERR "%s: invalid vsync_len %d\n", - fbi->fb.fix.id, var->vsync_len); - if (var->upper_margin < 0 || var->upper_margin > 255) - printk(KERN_ERR "%s: invalid upper_margin %d\n", - fbi->fb.fix.id, var->upper_margin); - if (var->lower_margin < 0 || var->lower_margin > 255) - printk(KERN_ERR "%s: invalid lower_margin %d\n", - fbi->fb.fix.id, var->lower_margin); #endif /* Update shadow copy atomically */ local_irq_save(flags); - setup_parallel_timing(fbi, var); +#ifdef CONFIG_FB_PXA_SMARTPANEL + if (fbi->lccr0 & LCCR0_LCDT) + setup_smart_timing(fbi, var); + else +#endif + setup_parallel_timing(fbi, var); fbi->reg_lccr0 = fbi->lccr0 | (LCCR0_LDM | LCCR0_SFM | LCCR0_IUM | LCCR0_EFM | @@ -698,7 +885,7 @@ static int pxafb_activate_var(struct fb_var_screeninfo *var, setup_frame_dma(fbi, DMA_LOWER, PAL_NONE, nbytes, nbytes); } - if (var->bits_per_pixel >= 16) + if ((var->bits_per_pixel >= 16) || (fbi->lccr0 & LCCR0_LCDT)) setup_frame_dma(fbi, DMA_BASE, PAL_NONE, 0, nbytes); else setup_frame_dma(fbi, DMA_BASE, PAL_BASE, 0, nbytes); @@ -801,6 +988,9 @@ static void pxafb_enable_controller(struct pxafb_info *fbi) /* enable LCD controller clock */ clk_enable(fbi->clk); + if (fbi->lccr0 & LCCR0_LCDT) + return; + /* Sequence from 11.7.10 */ lcd_writel(fbi, LCCR3, fbi->reg_lccr3); lcd_writel(fbi, LCCR2, fbi->reg_lccr2); @@ -816,6 +1006,14 @@ static void pxafb_disable_controller(struct pxafb_info *fbi) { uint32_t lccr0; +#ifdef CONFIG_FB_PXA_SMARTPANEL + if (fbi->lccr0 & LCCR0_LCDT) { + wait_for_completion_timeout(&fbi->refresh_done, + 200 * HZ / 1000); + return; + } +#endif + /* Clear LCD Status Register */ lcd_writel(fbi, LCSR, 0xffffffff); @@ -843,6 +1041,11 @@ static irqreturn_t pxafb_handle_irq(int irq, void *dev_id) complete(&fbi->disable_done); } +#ifdef CONFIG_FB_PXA_SMARTPANEL + if (lcsr & LCSR_CMD_INT) + complete(&fbi->command_done); +#endif + lcd_writel(fbi, LCSR, lcsr); return IRQ_HANDLED; } @@ -1050,15 +1253,17 @@ static int __init pxafb_map_video_memory(struct pxafb_info *fbi) * We reserve one page for the palette, plus the size * of the framebuffer. */ - fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + PAGE_SIZE); + fbi->video_offset = PAGE_ALIGN(sizeof(struct pxafb_dma_buff)); + fbi->map_size = PAGE_ALIGN(fbi->fb.fix.smem_len + fbi->video_offset); fbi->map_cpu = dma_alloc_writecombine(fbi->dev, fbi->map_size, &fbi->map_dma, GFP_KERNEL); if (fbi->map_cpu) { /* prevent initial garbage on screen */ memset(fbi->map_cpu, 0, fbi->map_size); - fbi->fb.screen_base = fbi->map_cpu + PAGE_SIZE; - fbi->screen_dma = fbi->map_dma + PAGE_SIZE; + fbi->fb.screen_base = fbi->map_cpu + fbi->video_offset; + fbi->screen_dma = fbi->map_dma + fbi->video_offset; + /* * FIXME: this is actually the wrong thing to place in * smem_start. But fbdev suffers from the problem that @@ -1068,9 +1273,14 @@ static int __init pxafb_map_video_memory(struct pxafb_info *fbi) fbi->fb.fix.smem_start = fbi->screen_dma; fbi->palette_size = fbi->fb.var.bits_per_pixel == 8 ? 256 : 16; - fbi->dma_buff = (void *)fbi->map_cpu; + fbi->dma_buff = (void *) fbi->map_cpu; fbi->dma_buff_phys = fbi->map_dma; - fbi->palette_cpu = (u16 *)&fbi->dma_buff->palette[0]; + fbi->palette_cpu = (u16 *) fbi->dma_buff->palette; + +#ifdef CONFIG_FB_PXA_SMARTPANEL + fbi->smart_cmds = (uint16_t *) fbi->dma_buff->cmd_buff; + fbi->n_smart_cmds = 0; +#endif } return fbi->map_cpu ? 0 : -ENOMEM; @@ -1191,6 +1401,10 @@ static struct pxafb_info * __init pxafb_init_fbinfo(struct device *dev) INIT_WORK(&fbi->task, pxafb_task); init_MUTEX(&fbi->ctrlr_sem); init_completion(&fbi->disable_done); +#ifdef CONFIG_FB_PXA_SMARTPANEL + init_completion(&fbi->command_done); + init_completion(&fbi->refresh_done); +#endif return fbi; } @@ -1510,6 +1724,13 @@ static int __init pxafb_probe(struct platform_device *dev) goto failed_free_mem; } +#ifdef CONFIG_FB_PXA_SMARTPANEL + ret = pxafb_smart_init(fbi); + if (ret) { + dev_err(&dev->dev, "failed to initialize smartpanel\n"); + goto failed_free_irq; + } +#endif /* * This makes sure that our colour bitfield * descriptors are correctly initialised. diff --git a/drivers/video/pxafb.h b/drivers/video/pxafb.h index c627b83497da..8238dc826429 100644 --- a/drivers/video/pxafb.h +++ b/drivers/video/pxafb.h @@ -52,9 +52,11 @@ enum { /* maximum palette size - 256 entries, each 4 bytes long */ #define PALETTE_SIZE (256 * 4) +#define CMD_BUFF_SIZE (1024 * 50) struct pxafb_dma_buff { unsigned char palette[PAL_MAX * PALETTE_SIZE]; + uint16_t cmd_buff[CMD_BUFF_SIZE]; struct pxafb_dma_descriptor pal_desc[PAL_MAX]; struct pxafb_dma_descriptor dma_desc[DMA_MAX]; }; @@ -84,6 +86,7 @@ struct pxafb_info { dma_addr_t screen_dma; /* physical address of frame buffer */ u16 * palette_cpu; /* virtual address of palette memory */ u_int palette_size; + ssize_t video_offset; u_int lccr0; u_int lccr3; @@ -97,6 +100,7 @@ struct pxafb_info { u_int reg_lccr2; u_int reg_lccr3; u_int reg_lccr4; + u_int reg_cmdcr; unsigned long hsync_time; @@ -108,6 +112,14 @@ struct pxafb_info { struct completion disable_done; +#ifdef CONFIG_FB_PXA_SMARTPANEL + uint16_t *smart_cmds; + size_t n_smart_cmds; + struct completion command_done; + struct completion refresh_done; + struct task_struct *smart_thread; +#endif + #ifdef CONFIG_CPU_FREQ struct notifier_block freq_transition; struct notifier_block freq_policy; diff --git a/include/asm-arm/arch-pxa/pxafb.h b/include/asm-arm/arch-pxa/pxafb.h index 41a6c2297f9f..bbd22396841a 100644 --- a/include/asm-arm/arch-pxa/pxafb.h +++ b/include/asm-arm/arch-pxa/pxafb.h @@ -48,6 +48,7 @@ #define LCD_COLOR_DSTN_16BPP ((16 << 4) | LCD_TYPE_COLOR_DSTN) #define LCD_COLOR_TFT_16BPP ((16 << 4) | LCD_TYPE_COLOR_TFT) #define LCD_COLOR_TFT_18BPP ((18 << 4) | LCD_TYPE_COLOR_TFT) +#define LCD_SMART_PANEL_8BPP ((8 << 4) | LCD_TYPE_SMART_PANEL) #define LCD_SMART_PANEL_16BPP ((16 << 4) | LCD_TYPE_SMART_PANEL) #define LCD_SMART_PANEL_18BPP ((18 << 4) | LCD_TYPE_SMART_PANEL) @@ -69,6 +70,10 @@ struct pxafb_mode_info { u_short yres; u_char bpp; + u_int cmap_greyscale:1, + unused:31; + + /* Parallel Mode Timing */ u_char hsync_len; u_char left_margin; u_char right_margin; @@ -78,8 +83,20 @@ struct pxafb_mode_info { u_char lower_margin; u_char sync; - u_int cmap_greyscale:1, - unused:31; + /* Smart Panel Mode Timing - see PXA27x DM 7.4.15.0.3 for details + * Note: + * 1. all parameters in nanosecond (ns) + * 2. a0cs{rd,wr}_set_hld are controlled by the same register bits + * in pxa27x and pxa3xx, initialize them to the same value or + * the larger one will be used + * 3. same to {rd,wr}_pulse_width + */ + unsigned a0csrd_set_hld; /* A0 and CS Setup/Hold Time before/after L_FCLK_RD */ + unsigned a0cswr_set_hld; /* A0 and CS Setup/Hold Time before/after L_PCLK_WR */ + unsigned wr_pulse_width; /* L_PCLK_WR pulse width */ + unsigned rd_pulse_width; /* L_FCLK_RD pulse width */ + unsigned cmd_inh_time; /* Command Inhibit time between two writes */ + unsigned op_hold_time; /* Output Hold time from L_FCLK_RD negation */ }; struct pxafb_mach_info { @@ -123,8 +140,11 @@ struct pxafb_mach_info { u_int lccr4; void (*pxafb_backlight_power)(int); void (*pxafb_lcd_power)(int, struct fb_var_screeninfo *); - + void (*smart_update)(struct fb_info *); }; void set_pxa_fb_info(struct pxafb_mach_info *hard_pxa_fb_info); void set_pxa_fb_parent(struct device *parent_dev); unsigned long pxafb_get_hsync_time(struct device *dev); + +extern int pxafb_smart_queue(struct fb_info *info, uint16_t *cmds, int); +extern int pxafb_smart_flush(struct fb_info *info); diff --git a/include/asm-arm/arch-pxa/regs-lcd.h b/include/asm-arm/arch-pxa/regs-lcd.h index f84dd47be28a..f762493f5141 100644 --- a/include/asm-arm/arch-pxa/regs-lcd.h +++ b/include/asm-arm/arch-pxa/regs-lcd.h @@ -7,7 +7,8 @@ #define LCCR1 (0x004) /* LCD Controller Control Register 1 */ #define LCCR2 (0x008) /* LCD Controller Control Register 2 */ #define LCCR3 (0x00C) /* LCD Controller Control Register 3 */ -#define LCCR4 (0x010) /* LCD Controller Control Register 3 */ +#define LCCR4 (0x010) /* LCD Controller Control Register 4 */ +#define LCCR5 (0x014) /* LCD Controller Control Register 5 */ #define DFBR0 (0x020) /* DMA Channel 0 Frame Branch Register */ #define DFBR1 (0x024) /* DMA Channel 1 Frame Branch Register */ #define LCSR (0x038) /* LCD Controller Status Register */ @@ -15,6 +16,9 @@ #define TMEDRGBR (0x040) /* TMED RGB Seed Register */ #define TMEDCR (0x044) /* TMED Control Register */ +#define CMDCR (0x100) /* Command Control Register */ +#define PRSR (0x104) /* Panel Read Status Register */ + #define LCCR3_1BPP (0 << 24) #define LCCR3_2BPP (1 << 24) #define LCCR3_4BPP (2 << 24) @@ -39,6 +43,9 @@ #define FSADR1 (0x214) /* DMA Channel 1 Frame Source Address Register */ #define FIDR1 (0x218) /* DMA Channel 1 Frame ID Register */ #define LDCMD1 (0x21C) /* DMA Channel 1 Command Register */ +#define FDADR6 (0x260) /* DMA Channel 6 Frame Descriptor Address Register */ +#define FSADR6 (0x264) /* DMA Channel 6 Frame Source Address Register */ +#define FIDR6 (0x268) /* DMA Channel 6 Frame ID Register */ #define LCCR0_ENB (1 << 0) /* LCD Controller enable */ #define LCCR0_CMS (1 << 1) /* Color/Monochrome Display Select */ @@ -122,6 +129,11 @@ #define LCCR3_VrtSnchH (LCCR3_VSP*0) /* VSP Active High */ #define LCCR3_VrtSnchL (LCCR3_VSP*1) /* VSP Active Low */ +#define LCCR5_IUM(x) (1 << ((x) + 23)) /* input underrun mask */ +#define LCCR5_BSM(x) (1 << ((x) + 15)) /* branch mask */ +#define LCCR5_EOFM(x) (1 << ((x) + 7)) /* end of frame mask */ +#define LCCR5_SOFM(x) (1 << ((x) + 0)) /* start of frame mask */ + #define LCSR_LDD (1 << 0) /* LCD Disable Done */ #define LCSR_SOF (1 << 1) /* Start of frame */ #define LCSR_BER (1 << 2) /* Bus error */ @@ -133,7 +145,27 @@ #define LCSR_EOF (1 << 8) /* end of frame */ #define LCSR_BS (1 << 9) /* branch status */ #define LCSR_SINT (1 << 10) /* subsequent interrupt */ +#define LCSR_RD_ST (1 << 11) /* read status */ +#define LCSR_CMD_INT (1 << 12) /* command interrupt */ #define LDCMD_PAL (1 << 26) /* instructs DMA to load palette buffer */ +/* smartpanel related */ +#define PRSR_DATA(x) ((x) & 0xff) /* Panel Data */ +#define PRSR_A0 (1 << 8) /* Read Data Source */ +#define PRSR_ST_OK (1 << 9) /* Status OK */ +#define PRSR_CON_NT (1 << 10) /* Continue to Next Command */ + +#define SMART_CMD_A0 (0x1 << 8) +#define SMART_CMD_READ_STATUS_REG (0x0 << 9) +#define SMART_CMD_READ_FRAME_BUFFER ((0x0 << 9) | SMART_CMD_A0) +#define SMART_CMD_WRITE_COMMAND (0x1 << 9) +#define SMART_CMD_WRITE_DATA ((0x1 << 9) | SMART_CMD_A0) +#define SMART_CMD_WRITE_FRAME ((0x2 << 9) | SMART_CMD_A0) +#define SMART_CMD_WAIT_FOR_VSYNC (0x3 << 9) +#define SMART_CMD_NOOP (0x4 << 9) +#define SMART_CMD_INTERRUPT (0x5 << 9) + +#define SMART_CMD(x) (SMART_CMD_WRITE_COMMAND | ((x) & 0xff)) +#define SMART_DAT(x) (SMART_CMD_WRITE_DATA | ((x) & 0xff)) #endif /* __ASM_ARCH_REGS_LCD_H */ -- GitLab